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Annotation of qemu/hw/vga.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * linux/include/video/vga.h -- standard VGA chipset interaction
        !             3:  *
        !             4:  * Copyright 1999 Jeff Garzik <[email protected]>
        !             5:  *
        !             6:  * Copyright history from vga16fb.c:
        !             7:  *     Copyright 1999 Ben Pfaff and Petr Vandrovec
        !             8:  *     Based on VGA info at http://www.osdever.net/FreeVGA/home.htm
        !             9:  *     Based on VESA framebuffer (c) 1998 Gerd Knorr
        !            10:  *
        !            11:  * This file is subject to the terms and conditions of the GNU General
        !            12:  * Public License.  See the file COPYING in the main directory of this
        !            13:  * archive for more details.
        !            14:  *
        !            15:  */
        !            16: 
        !            17: #ifndef __linux_video_vga_h__
        !            18: #define __linux_video_vga_h__
        !            19: 
        !            20: /* Some of the code below is taken from SVGAlib.  The original,
        !            21:    unmodified copyright notice for that code is below. */
        !            22: /* VGAlib version 1.2 - (c) 1993 Tommy Frandsen                    */
        !            23: /*                                                                 */
        !            24: /* This library is free software; you can redistribute it and/or   */
        !            25: /* modify it without any restrictions. This library is distributed */
        !            26: /* in the hope that it will be useful, but without any warranty.   */
        !            27: 
        !            28: /* Multi-chipset support Copyright 1993 Harm Hanemaayer */
        !            29: /* partially copyrighted (C) 1993 by Hartmut Schirmer */
        !            30: 
        !            31: /* VGA data register ports */
        !            32: #define VGA_CRT_DC      0x3D5   /* CRT Controller Data Register - color emulation */
        !            33: #define VGA_CRT_DM      0x3B5   /* CRT Controller Data Register - mono emulation */
        !            34: #define VGA_ATT_R       0x3C1   /* Attribute Controller Data Read Register */
        !            35: #define VGA_ATT_W       0x3C0   /* Attribute Controller Data Write Register */
        !            36: #define VGA_GFX_D       0x3CF   /* Graphics Controller Data Register */
        !            37: #define VGA_SEQ_D       0x3C5   /* Sequencer Data Register */
        !            38: #define VGA_MIS_R       0x3CC   /* Misc Output Read Register */
        !            39: #define VGA_MIS_W       0x3C2   /* Misc Output Write Register */
        !            40: #define VGA_FTC_R       0x3CA   /* Feature Control Read Register */
        !            41: #define VGA_IS1_RC      0x3DA   /* Input Status Register 1 - color emulation */
        !            42: #define VGA_IS1_RM      0x3BA   /* Input Status Register 1 - mono emulation */
        !            43: #define VGA_PEL_D       0x3C9   /* PEL Data Register */
        !            44: #define VGA_PEL_MSK     0x3C6   /* PEL mask register */
        !            45: 
        !            46: /* EGA-specific registers */
        !            47: #define EGA_GFX_E0      0x3CC   /* Graphics enable processor 0 */
        !            48: #define EGA_GFX_E1      0x3CA   /* Graphics enable processor 1 */
        !            49: 
        !            50: /* VGA index register ports */
        !            51: #define VGA_CRT_IC      0x3D4   /* CRT Controller Index - color emulation */
        !            52: #define VGA_CRT_IM      0x3B4   /* CRT Controller Index - mono emulation */
        !            53: #define VGA_ATT_IW      0x3C0   /* Attribute Controller Index & Data Write Register */
        !            54: #define VGA_GFX_I       0x3CE   /* Graphics Controller Index */
        !            55: #define VGA_SEQ_I       0x3C4   /* Sequencer Index */
        !            56: #define VGA_PEL_IW      0x3C8   /* PEL Write Index */
        !            57: #define VGA_PEL_IR      0x3C7   /* PEL Read Index */
        !            58: 
        !            59: /* standard VGA indexes max counts */
        !            60: #define VGA_CRT_C       0x19    /* Number of CRT Controller Registers */
        !            61: #define VGA_ATT_C       0x15    /* Number of Attribute Controller Registers */
        !            62: #define VGA_GFX_C       0x09    /* Number of Graphics Controller Registers */
        !            63: #define VGA_SEQ_C       0x05    /* Number of Sequencer Registers */
        !            64: #define VGA_MIS_C       0x01    /* Number of Misc Output Register */
        !            65: 
        !            66: /* VGA misc register bit masks */
        !            67: #define VGA_MIS_COLOR           0x01
        !            68: #define VGA_MIS_ENB_MEM_ACCESS  0x02
        !            69: #define VGA_MIS_DCLK_28322_720  0x04
        !            70: #define VGA_MIS_ENB_PLL_LOAD    (0x04 | 0x08)
        !            71: #define VGA_MIS_SEL_HIGH_PAGE   0x20
        !            72: 
        !            73: /* VGA CRT controller register indices */
        !            74: #define VGA_CRTC_H_TOTAL        0
        !            75: #define VGA_CRTC_H_DISP         1
        !            76: #define VGA_CRTC_H_BLANK_START  2
        !            77: #define VGA_CRTC_H_BLANK_END    3
        !            78: #define VGA_CRTC_H_SYNC_START   4
        !            79: #define VGA_CRTC_H_SYNC_END     5
        !            80: #define VGA_CRTC_V_TOTAL        6
        !            81: #define VGA_CRTC_OVERFLOW       7
        !            82: #define VGA_CRTC_PRESET_ROW     8
        !            83: #define VGA_CRTC_MAX_SCAN       9
        !            84: #define VGA_CRTC_CURSOR_START   0x0A
        !            85: #define VGA_CRTC_CURSOR_END     0x0B
        !            86: #define VGA_CRTC_START_HI       0x0C
        !            87: #define VGA_CRTC_START_LO       0x0D
        !            88: #define VGA_CRTC_CURSOR_HI      0x0E
        !            89: #define VGA_CRTC_CURSOR_LO      0x0F
        !            90: #define VGA_CRTC_V_SYNC_START   0x10
        !            91: #define VGA_CRTC_V_SYNC_END     0x11
        !            92: #define VGA_CRTC_V_DISP_END     0x12
        !            93: #define VGA_CRTC_OFFSET         0x13
        !            94: #define VGA_CRTC_UNDERLINE      0x14
        !            95: #define VGA_CRTC_V_BLANK_START  0x15
        !            96: #define VGA_CRTC_V_BLANK_END    0x16
        !            97: #define VGA_CRTC_MODE           0x17
        !            98: #define VGA_CRTC_LINE_COMPARE   0x18
        !            99: #define VGA_CRTC_REGS           VGA_CRT_C
        !           100: 
        !           101: /* VGA CRT controller bit masks */
        !           102: #define VGA_CR11_LOCK_CR0_CR7   0x80 /* lock writes to CR0 - CR7 */
        !           103: #define VGA_CR17_H_V_SIGNALS_ENABLED 0x80
        !           104: 
        !           105: /* VGA attribute controller register indices */
        !           106: #define VGA_ATC_PALETTE0        0x00
        !           107: #define VGA_ATC_PALETTE1        0x01
        !           108: #define VGA_ATC_PALETTE2        0x02
        !           109: #define VGA_ATC_PALETTE3        0x03
        !           110: #define VGA_ATC_PALETTE4        0x04
        !           111: #define VGA_ATC_PALETTE5        0x05
        !           112: #define VGA_ATC_PALETTE6        0x06
        !           113: #define VGA_ATC_PALETTE7        0x07
        !           114: #define VGA_ATC_PALETTE8        0x08
        !           115: #define VGA_ATC_PALETTE9        0x09
        !           116: #define VGA_ATC_PALETTEA        0x0A
        !           117: #define VGA_ATC_PALETTEB        0x0B
        !           118: #define VGA_ATC_PALETTEC        0x0C
        !           119: #define VGA_ATC_PALETTED        0x0D
        !           120: #define VGA_ATC_PALETTEE        0x0E
        !           121: #define VGA_ATC_PALETTEF        0x0F
        !           122: #define VGA_ATC_MODE            0x10
        !           123: #define VGA_ATC_OVERSCAN        0x11
        !           124: #define VGA_ATC_PLANE_ENABLE    0x12
        !           125: #define VGA_ATC_PEL             0x13
        !           126: #define VGA_ATC_COLOR_PAGE      0x14
        !           127: 
        !           128: #define VGA_AR_ENABLE_DISPLAY   0x20
        !           129: 
        !           130: /* VGA sequencer register indices */
        !           131: #define VGA_SEQ_RESET           0x00
        !           132: #define VGA_SEQ_CLOCK_MODE      0x01
        !           133: #define VGA_SEQ_PLANE_WRITE     0x02
        !           134: #define VGA_SEQ_CHARACTER_MAP   0x03
        !           135: #define VGA_SEQ_MEMORY_MODE     0x04
        !           136: 
        !           137: /* VGA sequencer register bit masks */
        !           138: #define VGA_SR01_CHAR_CLK_8DOTS 0x01 /* bit 0: character clocks 8 dots wide are generated */
        !           139: #define VGA_SR01_SCREEN_OFF     0x20 /* bit 5: Screen is off */
        !           140: #define VGA_SR02_ALL_PLANES     0x0F /* bits 3-0: enable access to all planes */
        !           141: #define VGA_SR04_EXT_MEM        0x02 /* bit 1: allows complete mem access to 256K */
        !           142: #define VGA_SR04_SEQ_MODE       0x04 /* bit 2: directs system to use a sequential addressing mode */
        !           143: #define VGA_SR04_CHN_4M         0x08 /* bit 3: selects modulo 4 addressing for CPU access to display memory */
        !           144: 
        !           145: /* VGA graphics controller register indices */
        !           146: #define VGA_GFX_SR_VALUE        0x00
        !           147: #define VGA_GFX_SR_ENABLE       0x01
        !           148: #define VGA_GFX_COMPARE_VALUE   0x02
        !           149: #define VGA_GFX_DATA_ROTATE     0x03
        !           150: #define VGA_GFX_PLANE_READ      0x04
        !           151: #define VGA_GFX_MODE            0x05
        !           152: #define VGA_GFX_MISC            0x06
        !           153: #define VGA_GFX_COMPARE_MASK    0x07
        !           154: #define VGA_GFX_BIT_MASK        0x08
        !           155: 
        !           156: /* VGA graphics controller bit masks */
        !           157: #define VGA_GR06_GRAPHICS_MODE  0x01
        !           158: 
        !           159: #endif /* __linux_video_vga_h__ */

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