src/mesa/drivers/dri/mga/server/mga_bios.h

   1 #ifndef MGA_BIOS_H
   2 #define MGA_BIOS_H
   3
   4
   5 /*
   6  * MGABiosInfo - This struct describes the video BIOS info block.
   7  *
   8  * DESCRIPTION
   9  *   Do not mess with this, unless you know what you are doing.
  10  *   The data lengths and types are critical.
  11  *
  12  * HISTORY
  13  *   October 7, 1996 - [aem] Andrew E. Mileski
  14  *   This struct was shamelessly stolen from the MGA DDK.
  15  *   It has been reformatted, and the data types changed.
  16  */
  17 typedef struct {
  18         /* Length of this structure in bytes */
  19         __u16 StructLen;
  20
  21         /*
  22          * Unique number identifying the product type
  23          * 0 : MGA-S1P20 (2MB base with 175MHz Ramdac)
  24          * 1 : MGA-S1P21 (2MB base with 220MHz Ramdac)
  25          * 2 : Reserved
  26          * 3 : Reserved
  27          * 4 : MGA-S1P40 (4MB base with 175MHz Ramdac)
  28          * 5 : MGA-S1P41 (4MB base with 220MHz Ramdac)
  29          */
  30         __u16 ProductID;
  31
  32         /* Serial number of the board */
  33         __u8 SerNo[ 10 ];
  34
  35         /*
  36          * Manufacturing date of the board (at product test)
  37          * Format: yyyy yyym mmmd dddd
  38          */
  39         __u16 ManufDate;
  40
  41         /* Identification of manufacturing site */
  42         __u16 ManufId;
  43
  44         /*
  45          * Number and revision level of the PCB
  46          * Format: nnnn nnnn nnnr rrrr
  47          *         n = PCB number ex:576 (from 0->2047)
  48          *         r = PCB revision      (from 0->31)
  49          */
  50         __u16 PCBInfo;
  51
  52         /* Identification of any PMBs */
  53         __u16 PMBInfo;
  54
  55         /*
  56          * Bit  0-7  : Ramdac speed (0=175MHz, 1=220MHz)
  57          * Bit  8-15 : Ramdac type  (0=TVP3026, 1=TVP3027)
  58          */
  59         __u16 RamdacType;
  60
  61         /* Maximum PCLK of the ramdac */
  62         __u16 PclkMax;
  63
  64         /* Maximum LDCLK supported by the WRAM memory */
  65         __u16 LclkMax;
  66
  67         /* Maximum MCLK of base board */
  68         __u16 ClkBase;
  69
  70         /* Maximum MCLK of 4Mb board */
  71         __u16 Clk4MB;
  72
  73         /* Maximum MCLK of 8Mb board */
  74         __u16 Clk8MB;
  75
  76         /* Maximum MCLK of board with multimedia module */
  77         __u16 ClkMod;
  78
  79         /* Diagnostic test pass frequency */
  80         __u16 TestClk;
  81
  82         /* Default VGA mode1 pixel frequency */
  83         __u16 VGAFreq1;
  84
  85         /* Default VGA mode2 pixel frequency */
  86         __u16 VGAFreq2;
  87
  88         /* Date of last BIOS programming/update */
  89         __u16 ProgramDate;
  90
  91         /* Number of times BIOS has been programmed */
  92         __u16 ProgramCnt;
  93
  94         /* Support for up to 32 hardware/software options */
  95         __u32 Options;
  96
  97         /* Support for up to 32 hardware/software features */
  98         __u32 FeatFlag;
  99
 100         /* Definition of VGA mode MCLK */
 101         __u16 VGAClk;
 102
 103         /* Indicate the revision level of this header struct */
 104         __u16 StructRev;
 105
 106         __u16 Reserved[ 3 ];
 107 } MGABiosInfo;
 108
 109 /* from the PINS structure, refer pins info from MGA */
 110 typedef struct tagParamMGA {
 111         __u16   PinID;          /* 0 */
 112         __u8    StructLen;      /* 2 */
 113         __u8    Rsvd1;          /* 3 */
 114         __u16   StructRev;      /* 4 */
 115         __u16   ProgramDate;    /* 6 */
 116         __u16   ProgramCnt;     /* 8 */
 117         __u16   ProductID;      /* 10 */
 118         __u8    SerNo[16];      /* 12 */
 119         __u8    PLInfo[6];      /* 28 */
 120         __u16   PCBInfo;        /* 34 */
 121         __u32   FeatFlag;       /* 36 */
 122         __u8    RamdacType;     /* 40 */
 123         __u8    RamdacSpeed;    /* 41 */
 124         __u8    PclkMax;        /* 42 */
 125         __u8    ClkGE;          /* 43 */
 126         __u8   ClkMem;          /* 44 */
 127         __u8    Clk4MB;         /* 45 */
 128         __u8    Clk8MB;         /* 46 */
 129         __u8    ClkMod;         /* 47 */
 130         __u8    TestClk;        /* 48 */
 131         __u8    VGAFreq1;       /* 49 */
 132         __u8    VGAFreq2;       /* 50 */
 133         __u8    MCTLWTST;       /* 51 */
 134         __u8    VidCtrl;        /* 52 */
 135         __u8    Clk12MB;        /* 53 */
 136         __u8    Clk16MB;        /* 54 */
 137         __u8    Reserved[8];    /* 55-62 */
 138         __u8    PinCheck;       /* 63 */
 139 }       MGABios2Info;
 140
 141 #endif