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#ifndef VGA_H |
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#define VGA_H |
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|
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/* |
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* Copyright (C) 2005 Anders Gavare. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* 3. The name of the author may not be used to endorse or promote products |
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* derived from this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* |
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* |
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* $Id: vga.h,v 1.5 2005/05/27 14:11:58 debug Exp $ |
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* |
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* VGA register definitions, used by src/devices/dev_vga.c. |
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*/ |
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|
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/* |
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* Registers (offset from 0x3C0): |
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*/ |
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|
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#define VGA_ATTRIBUTE_ADDR 0 /* R/W */ |
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#define VGA_ATTRIBUTE_DATA_WRITE 0 /* W */ |
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|
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#define VGA_ATTRIBUTE_DATA_READ 1 /* R */ |
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|
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#define VGA_INPUT_STATUS_0 2 /* R */ |
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|
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#define VGA_MISC_OUTPUT_W 2 /* W */ |
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#define VGA_MISC_OUTPUT_CS360 0x04 |
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#define VGA_MISC_OUTPUT_REN 0x02 |
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#define VGA_MISC_OUTPUT_IOAS 0x01 |
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|
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#define VGA_SEQUENCER_ADDR 4 /* R/W */ |
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#define VGA_SEQUENCER_DATA 5 /* R/W */ |
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#define VGA_SEQ_RESET 0 |
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#define VGA_SEQ_CLOCKING_MODE 1 |
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#define VGA_SEQ_MAP_MASK 2 |
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#define VGA_SEQ_CHARACTER_MAP_SELECT 3 |
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#define VGA_SEQ_SEQUENCER_MEMORY_MODE 4 |
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|
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#define VGA_DAC_STATE 7 /* R */ |
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#define VGA_DAC_ADDR_READ 7 /* W */ |
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#define VGA_DAC_ADDR_WRITE 8 /* W */ |
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#define VGA_DAC_DATA 9 /* R/W */ |
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|
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#define VGA_FEATURE_CONTROL 0xA /* R/W? */ |
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|
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#define VGA_MISC_OUTPUT_R 0xC /* R */ |
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|
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#define VGA_GRAPHCONTR_ADDR 0xE /* R/W */ |
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#define VGA_GRAPHCONTR_DATA 0xF /* R/W */ |
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#define VGA_GRAPHCONTR_MASK 8 |
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|
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#define VGA_CRTC_ADDR 0x14 /* R/W */ |
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#define VGA_CRTC_DATA 0x15 /* R/W */ |
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#define VGA_CRTC_CURSOR_SCANLINE_START 0x0a |
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#define VGA_CRTC_CURSOR_SCANLINE_END 0x0b |
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#define VGA_CRTC_START_ADDR_HIGH 0x0c |
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#define VGA_CRTC_START_ADDR_LOW 0x0d |
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#define VGA_CRTC_CURSOR_LOCATION_HIGH 0x0e |
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#define VGA_CRTC_CURSOR_LOCATION_LOW 0x0f |
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|
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#define VGA_INPUT_STATUS_1 0x1A /* R */ |
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#define VGA_IS1_DISPLAY_VRETRACE 0x08 |
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#define VGA_IS1_DISPLAY_DISPLAY_DISABLE 0x01 |
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|
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#endif /* VGA_H */ |