blob: 5dcfc1614d49ddd38559313f33b8cfe497827433 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
|
#ifndef MGA_BIOS_H
#define MGA_BIOS_H
/*
* 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
|
