/* * linux/include/video/vga.h -- standard VGA chipset interaction * * Copyright 1999 Jeff Garzik <[email protected]> * * 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__ #include <linux/types.h> #include <linux/io.h> #include <asm/vga.h> #include <asm/byteorder.h> #define VGA_FB_PHYS_BASE … #define VGA_FB_PHYS_SIZE … /* 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 … #define VGA_CRT_DM … #define VGA_ATT_R … #define VGA_ATT_W … #define VGA_GFX_D … #define VGA_SEQ_D … #define VGA_MIS_R … #define VGA_MIS_W … #define VGA_FTC_R … #define VGA_IS1_RC … #define VGA_IS1_RM … #define VGA_PEL_D … #define VGA_PEL_MSK … /* EGA-specific registers */ #define EGA_GFX_E0 … #define EGA_GFX_E1 … /* VGA index register ports */ #define VGA_CRT_IC … #define VGA_CRT_IM … #define VGA_ATT_IW … #define VGA_GFX_I … #define VGA_SEQ_I … #define VGA_PEL_IW … #define VGA_PEL_IR … /* standard VGA indexes max counts */ #define VGA_CRT_C … #define VGA_ATT_C … #define VGA_GFX_C … #define VGA_SEQ_C … #define VGA_MIS_C … /* VGA misc register bit masks */ #define VGA_MIS_COLOR … #define VGA_MIS_ENB_MEM_ACCESS … #define VGA_MIS_DCLK_28322_720 … #define VGA_MIS_ENB_PLL_LOAD … #define VGA_MIS_SEL_HIGH_PAGE … /* VGA CRT controller register indices */ #define VGA_CRTC_H_TOTAL … #define VGA_CRTC_H_DISP … #define VGA_CRTC_H_BLANK_START … #define VGA_CRTC_H_BLANK_END … #define VGA_CRTC_H_SYNC_START … #define VGA_CRTC_H_SYNC_END … #define VGA_CRTC_V_TOTAL … #define VGA_CRTC_OVERFLOW … #define VGA_CRTC_PRESET_ROW … #define VGA_CRTC_MAX_SCAN … #define VGA_CRTC_CURSOR_START … #define VGA_CRTC_CURSOR_END … #define VGA_CRTC_START_HI … #define VGA_CRTC_START_LO … #define VGA_CRTC_CURSOR_HI … #define VGA_CRTC_CURSOR_LO … #define VGA_CRTC_V_SYNC_START … #define VGA_CRTC_V_SYNC_END … #define VGA_CRTC_V_DISP_END … #define VGA_CRTC_OFFSET … #define VGA_CRTC_UNDERLINE … #define VGA_CRTC_V_BLANK_START … #define VGA_CRTC_V_BLANK_END … #define VGA_CRTC_MODE … #define VGA_CRTC_LINE_COMPARE … #define VGA_CRTC_REGS … /* VGA CRT controller bit masks */ #define VGA_CR11_LOCK_CR0_CR7 … #define VGA_CR17_H_V_SIGNALS_ENABLED … /* VGA attribute controller register indices */ #define VGA_ATC_PALETTE0 … #define VGA_ATC_PALETTE1 … #define VGA_ATC_PALETTE2 … #define VGA_ATC_PALETTE3 … #define VGA_ATC_PALETTE4 … #define VGA_ATC_PALETTE5 … #define VGA_ATC_PALETTE6 … #define VGA_ATC_PALETTE7 … #define VGA_ATC_PALETTE8 … #define VGA_ATC_PALETTE9 … #define VGA_ATC_PALETTEA … #define VGA_ATC_PALETTEB … #define VGA_ATC_PALETTEC … #define VGA_ATC_PALETTED … #define VGA_ATC_PALETTEE … #define VGA_ATC_PALETTEF … #define VGA_ATC_MODE … #define VGA_ATC_OVERSCAN … #define VGA_ATC_PLANE_ENABLE … #define VGA_ATC_PEL … #define VGA_ATC_COLOR_PAGE … #define VGA_AR_ENABLE_DISPLAY … /* VGA sequencer register indices */ #define VGA_SEQ_RESET … #define VGA_SEQ_CLOCK_MODE … #define VGA_SEQ_PLANE_WRITE … #define VGA_SEQ_CHARACTER_MAP … #define VGA_SEQ_MEMORY_MODE … /* VGA sequencer register bit masks */ #define VGA_SR01_CHAR_CLK_8DOTS … #define VGA_SR01_SCREEN_OFF … #define VGA_SR02_ALL_PLANES … #define VGA_SR04_EXT_MEM … #define VGA_SR04_SEQ_MODE … #define VGA_SR04_CHN_4M … /* VGA graphics controller register indices */ #define VGA_GFX_SR_VALUE … #define VGA_GFX_SR_ENABLE … #define VGA_GFX_COMPARE_VALUE … #define VGA_GFX_DATA_ROTATE … #define VGA_GFX_PLANE_READ … #define VGA_GFX_MODE … #define VGA_GFX_MISC … #define VGA_GFX_COMPARE_MASK … #define VGA_GFX_BIT_MASK … /* VGA graphics controller bit masks */ #define VGA_GR06_GRAPHICS_MODE … /* macro for composing an 8-bit VGA register index and value * into a single 16-bit quantity */ #define VGA_OUT16VAL(v, r) … /* decide whether we should enable the faster 16-bit VGA register writes */ #ifdef __LITTLE_ENDIAN #define VGA_OUTW_WRITE #endif /* VGA State Save and Restore */ #define VGA_SAVE_FONT0 … #define VGA_SAVE_FONT1 … #define VGA_SAVE_TEXT … #define VGA_SAVE_FONTS … #define VGA_SAVE_MODE … #define VGA_SAVE_CMAP … struct vgastate { … }; extern int save_vga(struct vgastate *state); extern int restore_vga(struct vgastate *state); /* * generic VGA port read/write */ static inline unsigned char vga_io_r (unsigned short port) { … } static inline void vga_io_w (unsigned short port, unsigned char val) { … } static inline void vga_io_w_fast (unsigned short port, unsigned char reg, unsigned char val) { … } static inline unsigned char vga_mm_r (void __iomem *regbase, unsigned short port) { … } static inline void vga_mm_w (void __iomem *regbase, unsigned short port, unsigned char val) { … } static inline void vga_mm_w_fast (void __iomem *regbase, unsigned short port, unsigned char reg, unsigned char val) { … } static inline unsigned char vga_r (void __iomem *regbase, unsigned short port) { … } static inline void vga_w (void __iomem *regbase, unsigned short port, unsigned char val) { … } static inline void vga_w_fast (void __iomem *regbase, unsigned short port, unsigned char reg, unsigned char val) { … } /* * VGA CRTC register read/write */ static inline unsigned char vga_rcrt (void __iomem *regbase, unsigned char reg) { … } static inline void vga_wcrt (void __iomem *regbase, unsigned char reg, unsigned char val) { … } static inline unsigned char vga_io_rcrt (unsigned char reg) { … } static inline void vga_io_wcrt (unsigned char reg, unsigned char val) { … } static inline unsigned char vga_mm_rcrt (void __iomem *regbase, unsigned char reg) { … } static inline void vga_mm_wcrt (void __iomem *regbase, unsigned char reg, unsigned char val) { … } /* * VGA sequencer register read/write */ static inline unsigned char vga_rseq (void __iomem *regbase, unsigned char reg) { … } static inline void vga_wseq (void __iomem *regbase, unsigned char reg, unsigned char val) { … } static inline unsigned char vga_io_rseq (unsigned char reg) { … } static inline void vga_io_wseq (unsigned char reg, unsigned char val) { … } static inline unsigned char vga_mm_rseq (void __iomem *regbase, unsigned char reg) { … } static inline void vga_mm_wseq (void __iomem *regbase, unsigned char reg, unsigned char val) { … } /* * VGA graphics controller register read/write */ static inline unsigned char vga_rgfx (void __iomem *regbase, unsigned char reg) { … } static inline void vga_wgfx (void __iomem *regbase, unsigned char reg, unsigned char val) { … } static inline unsigned char vga_io_rgfx (unsigned char reg) { … } static inline void vga_io_wgfx (unsigned char reg, unsigned char val) { … } static inline unsigned char vga_mm_rgfx (void __iomem *regbase, unsigned char reg) { … } static inline void vga_mm_wgfx (void __iomem *regbase, unsigned char reg, unsigned char val) { … } /* * VGA attribute controller register read/write */ static inline unsigned char vga_rattr (void __iomem *regbase, unsigned char reg) { … } static inline void vga_wattr (void __iomem *regbase, unsigned char reg, unsigned char val) { … } static inline unsigned char vga_io_rattr (unsigned char reg) { … } static inline void vga_io_wattr (unsigned char reg, unsigned char val) { … } static inline unsigned char vga_mm_rattr (void __iomem *regbase, unsigned char reg) { … } static inline void vga_mm_wattr (void __iomem *regbase, unsigned char reg, unsigned char val) { … } #endif /* __linux_video_vga_h__ */
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