Source code of Windows XP (NT5)
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
|
|
/*++
Copyright (c) 1993 Weitek Corporation
Module Name:
viper.h
Abstract:
This module contains definitions for the Diamond Viper VL board.
Environment:
Kernel mode
Revision History may be found at the end of this file.
--*/
//
// Viper uses the same DAC addresses as the Weitek VL cards.
//
extern VIDEO_ACCESS_RANGE VLDefDACRegRange[];
//
// Default memory base address for the Viper.
//
#define MemBase 0x80000000
//
// Bit to write to the sequencer control register to enable/disable P9
// video output.
//
#define P9_VIDEO_ENB 0x10
#define P9_VIDEO_DIS ~P9_VIDEO_ENB
//
// Define the bits in the sequencer control register which determine
// H and V sync polarties. For Viper, 1 = negative.
//
#define HSYNC_POL_MASK 0x20
#define VSYNC_POL_MASK 0x40
#define POL_MASK (HSYNC_POL_MASK | VSYNC_POL_MASK)
//
// Bit to in the sequencer control register to enable VGA output
// for the Viper board.
//
#define VGA_VIDEO_ENB 0x80
#define VGA_VIDEO_DIS ~VGA_VIDEO_ENB
//
// These defines represents the values to be written to the
// VGA sequencer control register for the possible memory mappings for
// the Diamond Viper board. Whew!
//
#define MEM_DISABLED 0x00
#define MEM_AXXX 0x01
#define MEM_2XXX 0x02
#define MEM_8XXX 0x03
//
// Value to mask off the memory address select bits in the sequencer
// control register.
//
#define ADDR_SLCT_MASK ~0x03
//
// Defines used to scan the VGA ROM in order to auto-detect a Viper card.
//
#define VIPER_VL_ID_STR "VIPER"
#define VIPER_ID_STR "VIPER"
#define VGA_BIOS_ADDR 0xC0000L
#define VGA_BIOS_LEN 0x8000L
|
