src/include/vga.h

#ifndef VGA_H
#define VGA_H

/*
 *  Copyright (C) 2005-2007  Anders Gavare.  All rights reserved.
 *
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions are met:
 *
 *  1. Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *  2. Redistributions in binary form must reproduce the above copyright  
 *     notice, this list of conditions and the following disclaimer in the 
 *     documentation and/or other materials provided with the distribution.
 *  3. The name of the author may not be used to endorse or promote products
 *     derived from this software without specific prior written permission.
 *
 *  THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 *  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 *  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 *  ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE   
 *  FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 *  DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 *  OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 *  HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 *  LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 *  OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 *  SUCH DAMAGE.
 *
 *
 *  $Id: vga.h,v 1.8 2006/12/30 13:31:01 debug Exp $
 *
 *  VGA register definitions, used by src/devices/dev_vga.c.
 */

/*
 *  Registers (offset from 0x3C0):
 */

#define VGA_ATTRIBUTE_ADDR              0       /*  R/W  */
#define VGA_ATTRIBUTE_DATA_WRITE        0       /*  W  */

#define VGA_ATTRIBUTE_DATA_READ         1       /*  R  */

#define VGA_INPUT_STATUS_0              2       /*  R  */

#define VGA_MISC_OUTPUT_W               2       /*  W  */
#define    VGA_MISC_OUTPUT_CS360           0x04
#define    VGA_MISC_OUTPUT_REN             0x02
#define    VGA_MISC_OUTPUT_IOAS            0x01

#define VGA_SEQUENCER_ADDR              4       /*  R/W  */
#define VGA_SEQUENCER_DATA              5       /*  R/W  */
#define    VGA_SEQ_RESET                   0
#define    VGA_SEQ_CLOCKING_MODE           1
#define    VGA_SEQ_MAP_MASK                2
#define    VGA_SEQ_CHARACTER_MAP_SELECT    3
#define    VGA_SEQ_SEQUENCER_MEMORY_MODE   4

#define VGA_DAC_STATE                   7       /*  R  */
#define VGA_DAC_ADDR_READ               7       /*  W  */
#define VGA_DAC_ADDR_WRITE              8       /*  W  */
#define VGA_DAC_DATA                    9       /*  R/W  */

#define VGA_FEATURE_CONTROL             0xA     /*  R/W?  */

#define VGA_MISC_OUTPUT_R               0xC     /*  R  */

#define VGA_GRAPHCONTR_ADDR             0xE     /*  R/W  */
#define VGA_GRAPHCONTR_DATA             0xF     /*  R/W  */
#define    VGA_GRAPHCONTR_SETRESET         0
#define    VGA_GRAPHCONTR_ENABLE           1
#define    VGA_GRAPHCONTR_COLORCMP         2
#define    VGA_GRAPHCONTR_DATAROTATE       3
#define    VGA_GRAPHCONTR_READMAPSELECT    4
#define    VGA_GRAPHCONTR_GRAPHICSMODE     5
#define    VGA_GRAPHCONTR_MISC             6
#define    VGA_GRAPHCONTR_COLORDONTCARE    7
#define    VGA_GRAPHCONTR_MASK             8

#define VGA_CRTC_ADDR                   0x14    /*  R/W  */
#define VGA_CRTC_DATA                   0x15    /*  R/W  */
#define    VGA_CRTC_CURSOR_SCANLINE_START  0x0a
#define    VGA_CRTC_CURSOR_SCANLINE_END    0x0b
#define    VGA_CRTC_START_ADDR_HIGH        0x0c
#define    VGA_CRTC_START_ADDR_LOW         0x0d
#define    VGA_CRTC_CURSOR_LOCATION_HIGH   0x0e
#define    VGA_CRTC_CURSOR_LOCATION_LOW    0x0f

#define VGA_INPUT_STATUS_1              0x1A    /*  R  */
#define    VGA_IS1_DISPLAY_VRETRACE        0x08
#define    VGA_IS1_DISPLAY_DISPLAY_DISABLE 0x01

#endif  /*  VGA_H  */
1	#ifndef VGA_H
2	#define VGA_H
3
4	/*
5	* Copyright (C) 2005-2007 Anders Gavare. All rights reserved.
6	*
7	* Redistribution and use in source and binary forms, with or without
8	* modification, are permitted provided that the following conditions are met:
9	*
10	* 1. Redistributions of source code must retain the above copyright
11	* notice, this list of conditions and the following disclaimer.
12	* 2. Redistributions in binary form must reproduce the above copyright
13	* notice, this list of conditions and the following disclaimer in the
14	* documentation and/or other materials provided with the distribution.
15	* 3. The name of the author may not be used to endorse or promote products
16	* derived from this software without specific prior written permission.
17	*
18	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21	* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28	* SUCH DAMAGE.
29	*
30	*
31	* $Id: vga.h,v 1.8 2006/12/30 13:31:01 debug Exp $
32	*
33	* VGA register definitions, used by src/devices/dev_vga.c.
34	*/
35
36	/*
37	* Registers (offset from 0x3C0):
38	*/
39
40	#define VGA_ATTRIBUTE_ADDR 0 /* R/W */
41	#define VGA_ATTRIBUTE_DATA_WRITE 0 /* W */
42
43	#define VGA_ATTRIBUTE_DATA_READ 1 /* R */
44
45	#define VGA_INPUT_STATUS_0 2 /* R */
46
47	#define VGA_MISC_OUTPUT_W 2 /* W */
48	#define VGA_MISC_OUTPUT_CS360 0x04
49	#define VGA_MISC_OUTPUT_REN 0x02
50	#define VGA_MISC_OUTPUT_IOAS 0x01
51
52	#define VGA_SEQUENCER_ADDR 4 /* R/W */
53	#define VGA_SEQUENCER_DATA 5 /* R/W */
54	#define VGA_SEQ_RESET 0
55	#define VGA_SEQ_CLOCKING_MODE 1
56	#define VGA_SEQ_MAP_MASK 2
57	#define VGA_SEQ_CHARACTER_MAP_SELECT 3
58	#define VGA_SEQ_SEQUENCER_MEMORY_MODE 4
59
60	#define VGA_DAC_STATE 7 /* R */
61	#define VGA_DAC_ADDR_READ 7 /* W */
62	#define VGA_DAC_ADDR_WRITE 8 /* W */
63	#define VGA_DAC_DATA 9 /* R/W */
64
65	#define VGA_FEATURE_CONTROL 0xA /* R/W? */
66
67	#define VGA_MISC_OUTPUT_R 0xC /* R */
68
69	#define VGA_GRAPHCONTR_ADDR 0xE /* R/W */
70	#define VGA_GRAPHCONTR_DATA 0xF /* R/W */
71	#define VGA_GRAPHCONTR_SETRESET 0
72	#define VGA_GRAPHCONTR_ENABLE 1
73	#define VGA_GRAPHCONTR_COLORCMP 2
74	#define VGA_GRAPHCONTR_DATAROTATE 3
75	#define VGA_GRAPHCONTR_READMAPSELECT 4
76	#define VGA_GRAPHCONTR_GRAPHICSMODE 5
77	#define VGA_GRAPHCONTR_MISC 6
78	#define VGA_GRAPHCONTR_COLORDONTCARE 7
79	#define VGA_GRAPHCONTR_MASK 8
80
81	#define VGA_CRTC_ADDR 0x14 /* R/W */
82	#define VGA_CRTC_DATA 0x15 /* R/W */
83	#define VGA_CRTC_CURSOR_SCANLINE_START 0x0a
84	#define VGA_CRTC_CURSOR_SCANLINE_END 0x0b
85	#define VGA_CRTC_START_ADDR_HIGH 0x0c
86	#define VGA_CRTC_START_ADDR_LOW 0x0d
87	#define VGA_CRTC_CURSOR_LOCATION_HIGH 0x0e
88	#define VGA_CRTC_CURSOR_LOCATION_LOW 0x0f
89
90	#define VGA_INPUT_STATUS_1 0x1A /* R */
91	#define VGA_IS1_DISPLAY_VRETRACE 0x08
92	#define VGA_IS1_DISPLAY_DISPLAY_DISABLE 0x01
93
94	#endif /* VGA_H */