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158 lines
4.4 KiB
158 lines
4.4 KiB
/*++
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Copyright (c) 1989 Microsoft Corporation
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Module Name:
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jxvideo.h
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Abstract:
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This module implements contains definitions for the interface with
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the video prom initialization code.
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Author:
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Lluis Abello (lluis) 16-Jul-1992
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Environment:
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Kernel mode.
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Revision History:
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--*/
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#ifndef _JXVIDEO_
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#define _JXVIDEO_
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// The video PROM contains the following structure starting at offset zero
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// from the PROM base address. Each entry is 8 bytes wide with the low byte
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// containing data and the upper 7 bytes reserved.
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//
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// 63 8 7 0 Offset
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// +------------------+ +------------------+
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// | reserved | | Board_Identifier | 0x00
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// +------------------+ +------------------+
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// | reserved | | PROM_Stride | 0x08
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// +------------------+ +------------------+
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// | reserved | | PROM_Width | 0x10
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// +------------------+ +------------------+
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// | reserved | | PROM_Size | 0x18
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// +------------------+ +------------------+
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// | reserved | | Test_Byte_0 | 0x20
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// +------------------+ +------------------+
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// | reserved | | Test_Byte_1 | 0x28
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// +------------------+ +------------------+
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// | reserved | | Test_Byte_2 | 0x30
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// +------------------+ +------------------+
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// | reserved | | Test_Byte_3 | 0x38
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// +------------------+ +------------------+
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//
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//
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// Board_Identifier - supplies two bytes identifying the video board.
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//
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// PROM_Stride - supplies the stride of the PROM in bytes. Possible
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// values are:
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//
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// 1 - data every byte
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// 2 - data every 2 bytes
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// 4 - data every 4 bytes
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// 8 - data every 8 bytes
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//
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// PROM_Width - supplies the width of the PROM in bytes. Possible values
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// are:
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//
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// 1 - 1 byte wide
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// 2 - 2 bytes wide
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// 4 - 4 bytes wide
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// 8 - 8 bytes wide
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//
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// PROM_Size - supplies the size of the PROM in 4 KByte pages.
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//
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// Test_Bytes_[3:0] - supplies a test pattern ("Jazz").
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//
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// This strucure viewed from the video prom, i.e. the system
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//prom reads it taking into account PROM_Stride and PROM_Width
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//follows:
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//
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//typedef struct _VIDEO_PROM_CONFIGURATION {
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// ULONG VideoMemorySize;
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// ULONG VideoControlSize;
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// ULONG CodeOffset;
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// ULONG CodeSize;
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//} VIDEO_PROM_CONFIGURATION; *PVIDEO_PROM_CONFIGURATION;
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//
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//
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// VideoMemorySize - Supplies the size of video memory in bytes
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//
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// VideoControlSize - Supplies the size of video control in bytes
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//
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// CodeOffset - Supplies the offset in bytes from the beginning
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// of the video prom to the first byte of code which
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// is also the entry point of the initialization routine.
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//
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// CodeSize - Supplies the size of the code in bytes.
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//
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//
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//
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// Following this structure there is a IdentifierString -
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// Zero terminated string that identifies the video card "JazzG364", "
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// JazzVXL" ...
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typedef struct _VIDEO_PROM_CONFIGURATION {
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ULONG VideoMemorySize;
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ULONG VideoControlSize;
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ULONG CodeOffset;
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ULONG CodeSize;
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} VIDEO_PROM_CONFIGURATION, *PVIDEO_PROM_CONFIGURATION;
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typedef struct _VIDEO_VIRTUAL_SPACE {
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ULONG MemoryVirtualBase;
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ULONG ControlVirtualBase;
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} VIDEO_VIRTUAL_SPACE, *PVIDEO_VIRTUAL_SPACE;
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typedef
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ARC_STATUS
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(*PVIDEO_INITIALIZE_ROUTINE) (
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IN PVIDEO_VIRTUAL_SPACE VideoAdr,
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IN PMONITOR_CONFIGURATION_DATA VideoConfig
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);
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#define InitializeVideo(VideoAdr, VideoConfig) \
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((PVIDEO_INITIALIZE_ROUTINE)(VIDEO_PROM_CODE_VIRTUAL_BASE)) \
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((VideoAdr), (VideoConfig))
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ARC_STATUS
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InitializeVideoFromProm(
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IN PMONITOR_CONFIGURATION_DATA Monitor
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);
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//
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// Define colors, HI = High Intensity
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//
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#define FW_COLOR_BLACK 0x00
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#define FW_COLOR_RED 0x01
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#define FW_COLOR_GREEN 0x02
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#define FW_COLOR_YELLOW 0x03
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#define FW_COLOR_BLUE 0x04
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#define FW_COLOR_MAGENTA 0x05
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#define FW_COLOR_CYAN 0x06
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#define FW_COLOR_WHITE 0x07
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#define FW_COLOR_HI_BLACK 0x08
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#define FW_COLOR_HI_RED 0x09
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#define FW_COLOR_HI_GREEN 0x0A
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#define FW_COLOR_HI_YELLOW 0x0B
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#define FW_COLOR_HI_BLUE 0x0C
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#define FW_COLOR_HI_MAGENTA 0x0D
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#define FW_COLOR_HI_CYAN 0x0E
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#define FW_COLOR_HI_WHITE 0x0F
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#endif
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