mirror of
https://github.com/qemu/qemu.git
synced 2024-12-05 17:53:36 +08:00
0dad6c35fc
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
160 lines
6.5 KiB
C
160 lines
6.5 KiB
C
/*
|
|
* linux/include/video/vga.h -- standard VGA chipset interaction
|
|
*
|
|
* Copyright 1999 Jeff Garzik <jgarzik@pobox.com>
|
|
*
|
|
* Copyright history from vga16fb.c:
|
|
* Copyright 1999 Ben Pfaff and Petr Vandrovec
|
|
* Based on VGA info at http://www.osdever.net/FreeVGA/home.htm
|
|
* Based on VESA framebuffer (c) 1998 Gerd Knorr
|
|
*
|
|
* This file is subject to the terms and conditions of the GNU General
|
|
* Public License. See the file COPYING in the main directory of this
|
|
* archive for more details.
|
|
*
|
|
*/
|
|
|
|
#ifndef __linux_video_vga_h__
|
|
#define __linux_video_vga_h__
|
|
|
|
/* Some of the code below is taken from SVGAlib. The original,
|
|
unmodified copyright notice for that code is below. */
|
|
/* VGAlib version 1.2 - (c) 1993 Tommy Frandsen */
|
|
/* */
|
|
/* This library is free software; you can redistribute it and/or */
|
|
/* modify it without any restrictions. This library is distributed */
|
|
/* in the hope that it will be useful, but without any warranty. */
|
|
|
|
/* Multi-chipset support Copyright 1993 Harm Hanemaayer */
|
|
/* partially copyrighted (C) 1993 by Hartmut Schirmer */
|
|
|
|
/* VGA data register ports */
|
|
#define VGA_CRT_DC 0x3D5 /* CRT Controller Data Register - color emulation */
|
|
#define VGA_CRT_DM 0x3B5 /* CRT Controller Data Register - mono emulation */
|
|
#define VGA_ATT_R 0x3C1 /* Attribute Controller Data Read Register */
|
|
#define VGA_ATT_W 0x3C0 /* Attribute Controller Data Write Register */
|
|
#define VGA_GFX_D 0x3CF /* Graphics Controller Data Register */
|
|
#define VGA_SEQ_D 0x3C5 /* Sequencer Data Register */
|
|
#define VGA_MIS_R 0x3CC /* Misc Output Read Register */
|
|
#define VGA_MIS_W 0x3C2 /* Misc Output Write Register */
|
|
#define VGA_FTC_R 0x3CA /* Feature Control Read Register */
|
|
#define VGA_IS1_RC 0x3DA /* Input Status Register 1 - color emulation */
|
|
#define VGA_IS1_RM 0x3BA /* Input Status Register 1 - mono emulation */
|
|
#define VGA_PEL_D 0x3C9 /* PEL Data Register */
|
|
#define VGA_PEL_MSK 0x3C6 /* PEL mask register */
|
|
|
|
/* EGA-specific registers */
|
|
#define EGA_GFX_E0 0x3CC /* Graphics enable processor 0 */
|
|
#define EGA_GFX_E1 0x3CA /* Graphics enable processor 1 */
|
|
|
|
/* VGA index register ports */
|
|
#define VGA_CRT_IC 0x3D4 /* CRT Controller Index - color emulation */
|
|
#define VGA_CRT_IM 0x3B4 /* CRT Controller Index - mono emulation */
|
|
#define VGA_ATT_IW 0x3C0 /* Attribute Controller Index & Data Write Register */
|
|
#define VGA_GFX_I 0x3CE /* Graphics Controller Index */
|
|
#define VGA_SEQ_I 0x3C4 /* Sequencer Index */
|
|
#define VGA_PEL_IW 0x3C8 /* PEL Write Index */
|
|
#define VGA_PEL_IR 0x3C7 /* PEL Read Index */
|
|
|
|
/* standard VGA indexes max counts */
|
|
#define VGA_CRT_C 0x19 /* Number of CRT Controller Registers */
|
|
#define VGA_ATT_C 0x15 /* Number of Attribute Controller Registers */
|
|
#define VGA_GFX_C 0x09 /* Number of Graphics Controller Registers */
|
|
#define VGA_SEQ_C 0x05 /* Number of Sequencer Registers */
|
|
#define VGA_MIS_C 0x01 /* Number of Misc Output Register */
|
|
|
|
/* VGA misc register bit masks */
|
|
#define VGA_MIS_COLOR 0x01
|
|
#define VGA_MIS_ENB_MEM_ACCESS 0x02
|
|
#define VGA_MIS_DCLK_28322_720 0x04
|
|
#define VGA_MIS_ENB_PLL_LOAD (0x04 | 0x08)
|
|
#define VGA_MIS_SEL_HIGH_PAGE 0x20
|
|
|
|
/* VGA CRT controller register indices */
|
|
#define VGA_CRTC_H_TOTAL 0
|
|
#define VGA_CRTC_H_DISP 1
|
|
#define VGA_CRTC_H_BLANK_START 2
|
|
#define VGA_CRTC_H_BLANK_END 3
|
|
#define VGA_CRTC_H_SYNC_START 4
|
|
#define VGA_CRTC_H_SYNC_END 5
|
|
#define VGA_CRTC_V_TOTAL 6
|
|
#define VGA_CRTC_OVERFLOW 7
|
|
#define VGA_CRTC_PRESET_ROW 8
|
|
#define VGA_CRTC_MAX_SCAN 9
|
|
#define VGA_CRTC_CURSOR_START 0x0A
|
|
#define VGA_CRTC_CURSOR_END 0x0B
|
|
#define VGA_CRTC_START_HI 0x0C
|
|
#define VGA_CRTC_START_LO 0x0D
|
|
#define VGA_CRTC_CURSOR_HI 0x0E
|
|
#define VGA_CRTC_CURSOR_LO 0x0F
|
|
#define VGA_CRTC_V_SYNC_START 0x10
|
|
#define VGA_CRTC_V_SYNC_END 0x11
|
|
#define VGA_CRTC_V_DISP_END 0x12
|
|
#define VGA_CRTC_OFFSET 0x13
|
|
#define VGA_CRTC_UNDERLINE 0x14
|
|
#define VGA_CRTC_V_BLANK_START 0x15
|
|
#define VGA_CRTC_V_BLANK_END 0x16
|
|
#define VGA_CRTC_MODE 0x17
|
|
#define VGA_CRTC_LINE_COMPARE 0x18
|
|
#define VGA_CRTC_REGS VGA_CRT_C
|
|
|
|
/* VGA CRT controller bit masks */
|
|
#define VGA_CR11_LOCK_CR0_CR7 0x80 /* lock writes to CR0 - CR7 */
|
|
#define VGA_CR17_H_V_SIGNALS_ENABLED 0x80
|
|
|
|
/* VGA attribute controller register indices */
|
|
#define VGA_ATC_PALETTE0 0x00
|
|
#define VGA_ATC_PALETTE1 0x01
|
|
#define VGA_ATC_PALETTE2 0x02
|
|
#define VGA_ATC_PALETTE3 0x03
|
|
#define VGA_ATC_PALETTE4 0x04
|
|
#define VGA_ATC_PALETTE5 0x05
|
|
#define VGA_ATC_PALETTE6 0x06
|
|
#define VGA_ATC_PALETTE7 0x07
|
|
#define VGA_ATC_PALETTE8 0x08
|
|
#define VGA_ATC_PALETTE9 0x09
|
|
#define VGA_ATC_PALETTEA 0x0A
|
|
#define VGA_ATC_PALETTEB 0x0B
|
|
#define VGA_ATC_PALETTEC 0x0C
|
|
#define VGA_ATC_PALETTED 0x0D
|
|
#define VGA_ATC_PALETTEE 0x0E
|
|
#define VGA_ATC_PALETTEF 0x0F
|
|
#define VGA_ATC_MODE 0x10
|
|
#define VGA_ATC_OVERSCAN 0x11
|
|
#define VGA_ATC_PLANE_ENABLE 0x12
|
|
#define VGA_ATC_PEL 0x13
|
|
#define VGA_ATC_COLOR_PAGE 0x14
|
|
|
|
#define VGA_AR_ENABLE_DISPLAY 0x20
|
|
|
|
/* VGA sequencer register indices */
|
|
#define VGA_SEQ_RESET 0x00
|
|
#define VGA_SEQ_CLOCK_MODE 0x01
|
|
#define VGA_SEQ_PLANE_WRITE 0x02
|
|
#define VGA_SEQ_CHARACTER_MAP 0x03
|
|
#define VGA_SEQ_MEMORY_MODE 0x04
|
|
|
|
/* VGA sequencer register bit masks */
|
|
#define VGA_SR01_CHAR_CLK_8DOTS 0x01 /* bit 0: character clocks 8 dots wide are generated */
|
|
#define VGA_SR01_SCREEN_OFF 0x20 /* bit 5: Screen is off */
|
|
#define VGA_SR02_ALL_PLANES 0x0F /* bits 3-0: enable access to all planes */
|
|
#define VGA_SR04_EXT_MEM 0x02 /* bit 1: allows complete mem access to 256K */
|
|
#define VGA_SR04_SEQ_MODE 0x04 /* bit 2: directs system to use a sequential addressing mode */
|
|
#define VGA_SR04_CHN_4M 0x08 /* bit 3: selects modulo 4 addressing for CPU access to display memory */
|
|
|
|
/* VGA graphics controller register indices */
|
|
#define VGA_GFX_SR_VALUE 0x00
|
|
#define VGA_GFX_SR_ENABLE 0x01
|
|
#define VGA_GFX_COMPARE_VALUE 0x02
|
|
#define VGA_GFX_DATA_ROTATE 0x03
|
|
#define VGA_GFX_PLANE_READ 0x04
|
|
#define VGA_GFX_MODE 0x05
|
|
#define VGA_GFX_MISC 0x06
|
|
#define VGA_GFX_COMPARE_MASK 0x07
|
|
#define VGA_GFX_BIT_MASK 0x08
|
|
|
|
/* VGA graphics controller bit masks */
|
|
#define VGA_GR06_GRAPHICS_MODE 0x01
|
|
|
|
#endif /* __linux_video_vga_h__ */
|