xref: /illumos-gate/usr/src/uts/common/sys/vgareg.h (revision 8e6d016f3eedbcabf3a3bc35224bca733dc405a4)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #ifndef	_SYS_VGAREG_H
28 #define	_SYS_VGAREG_H
29 
30 #ifdef	__cplusplus
31 extern "C" {
32 #endif
33 
34 #define	VGA_REG_ADDR	0x3c0
35 #define	VGA_REG_SIZE	0x20
36 
37 #define	VGA_MEM_ADDR	0xa0000
38 #define	VGA_MEM_SIZE	0x20000
39 
40 #define	VGA_TEXT_COLS	80
41 #define	VGA_TEXT_ROWS	25
42 
43 /*
44  * VGA frame buffer hardware definitions.
45  */
46 
47 #define	VGA8_DEPTH		8
48 #define	VGA8_CMAP_ENTRIES	256
49 #define	VGA_TEXT_CMAP_ENTRIES	64
50 
51 /*
52  * General VGA registers
53  * These are relative to their register set, which
54  * the 3c0-3df set.
55  */
56 #define	VGA_ATR_AD	0x00
57 #define	VGA_ATR_DATA	0x01
58 #define	VGA_MISC_W	0x02
59 #define	VGA_SEQ_ADR	0x04
60 #define	VGA_SEQ_DATA	0x05
61 #define	VGA_DAC_BASE	0x06
62 #define	VGA_DAC_AD_MK	0x06
63 #define	VGA_DAC_RD_AD	0x07
64 #define	VGA_DAC_STS	0x07
65 #define	VGA_DAC_WR_AD	0x08
66 #define	VGA_DAC_DATA	0x09
67 #define	VGA_MISC_R	0x0c
68 #define	VGA_GRC_ADR	0x0e
69 #define	VGA_GRC_DATA	0x0f
70 #define	VGA_CRTC_ADR	0x14
71 #define	VGA_CRTC_DATA	0x15
72 #define	CGA_STAT	0x1a
73 
74 /*
75  * Attribute controller index bits
76  */
77 #define	VGA_ATR_ENB_PLT	0x20
78 
79 /*
80  * Miscellaneous output bits
81  */
82 #define	VGA_MISC_IOA_SEL	0x01
83 #define	VGA_MISC_ENB_RAM	0x02
84 #define	VGA_MISC_VCLK		0x0c
85 #define		VGA_MISC_VCLK0		0x00
86 #define		VGA_MISC_VCLK1		0x04
87 #define		VGA_MISC_VCLK2		0x08
88 #define		VGA_MISC_VCLK3		0x0c
89 #define	VGA_MISC_PGSL		0x20
90 #define	VGA_MISC_HSP		0x40
91 #define	VGA_MISC_VSP		0x80
92 #define	VGA_MISC_IS1_VR		0x08	/* Vertical Retrace */
93 #define	VGA_MISC_IS1_DD		0x01	/* Display Disabled */
94 
95 /*
96  * CRT Controller registers
97  */
98 #define	VGA_CRTC_H_TOTAL	0x00
99 #define	VGA_CRTC_H_D_END	0x01
100 #define	VGA_CRTC_S_H_BLNK	0x02
101 #define	VGA_CRTC_E_H_BLNK	0x03
102 #define		VGA_CRTC_E_H_BLNK_PUT_EHB(n) \
103 			((n)&0x1f)
104 #define	VGA_CRTC_S_H_SY_P	0x04
105 #define	VGA_CRTC_E_H_SY_P	0x05
106 #define		VGA_CRTC_E_H_SY_P_HOR_SKW_SHIFT	5
107 #define		VGA_CRTC_E_H_SY_P_HOR_SKW	0x60
108 #define		VGA_CRTC_E_H_SY_P_EHB5		7
109 #define		VGA_CRTC_E_H_SY_P_PUT_HOR_SKW(skew) \
110 			((skew)<<VGA_CRTC_E_H_SY_P_HOR_SKW_SHIFT)
111 #define		VGA_CRTC_E_H_SY_P_PUT_EHB(n) \
112 			((((n)>>5)&1)<<VGA_CRTC_E_H_SY_P_EHB5)
113 #define		VGA_CRTC_E_H_SY_P_PUT_EHS(n) \
114 			((n)&0x1f)
115 #define	VGA_CRTC_V_TOTAL	0x06
116 #define	VGA_CRTC_OVFL_REG	0x07
117 #define		VGA_CRTC_OVFL_REG_VT8	0
118 #define		VGA_CRTC_OVFL_REG_VDE8	1
119 #define		VGA_CRTC_OVFL_REG_VRS8	2
120 #define		VGA_CRTC_OVFL_REG_SVB8	3
121 #define		VGA_CRTC_OVFL_REG_LCM8	4
122 #define		VGA_CRTC_OVFL_REG_VT9	5
123 #define		VGA_CRTC_OVFL_REG_VDE9	6
124 #define		VGA_CRTC_OVFL_REG_VRS9	7
125 #define		VGA_CRTC_OVFL_REG_PUT_VT(n)	\
126 			((((n)>>8)&1)<<VGA_CRTC_OVFL_REG_VT8) \
127 			| ((((n)>>9)&1)<<VGA_CRTC_OVFL_REG_VT9)
128 #define		VGA_CRTC_OVFL_REG_PUT_VDE(n)	\
129 			((((n)>>8)&1)<<VGA_CRTC_OVFL_REG_VDE8) \
130 			| ((((n)>>9)&1)<<VGA_CRTC_OVFL_REG_VDE9)
131 #define		VGA_CRTC_OVFL_REG_PUT_VRS(n)	\
132 			((((n)>>8)&1)<<VGA_CRTC_OVFL_REG_VRS8) \
133 			| ((((n)>>9)&1)<<VGA_CRTC_OVFL_REG_VRS9)
134 #define		VGA_CRTC_OVFL_REG_PUT_LCM(n)	\
135 			((((n)>>8)&1)<<VGA_CRTC_OVFL_REG_LCM8)
136 #define		VGA_CRTC_OVFL_REG_PUT_SVB(n)	\
137 			((((n)>>8)&1)<<VGA_CRTC_OVFL_REG_SVB8)
138 #define	VGA_CRTC_P_R_SCAN	0x08
139 #define	VGA_CRTC_MAX_S_LN	0x09
140 #define		VGA_CRTC_MAX_S_LN_SVB9	5
141 #define		VGA_CRTC_MAX_S_LN_LCM9	6
142 #define		VGA_CRTC_MAX_S_LN_PUT_SVB(n)	\
143 			((((n)>>9)&1)<<VGA_CRTC_MAX_S_LN_SVB9)
144 #define		VGA_CRTC_MAX_S_LN_PUT_LCM(n)	\
145 			((((n)>>9)&1)<<VGA_CRTC_MAX_S_LN_LCM9)
146 #define	VGA_CRTC_CSSL		0x0a
147 #define	VGA_CRTC_CESL		0x0b
148 #define	VGA_CRTC_STAH		0x0c
149 #define	VGA_CRTC_STAL		0x0d
150 #define	VGA_CRTC_CLAH		0x0e
151 #define	VGA_CRTC_CLAL		0x0f
152 #define	VGA_CRTC_VRS		0x10
153 #define	VGA_CRTC_VRE		0x11
154 #define		VGA_CRTC_VRE_LOCK	0x80
155 #define		VGA_CRTC_VRE_DIS_VINT	0x20
156 #define		VGA_CRTC_VRE_PUT_VRE(n) \
157 			((n)&0x0f)
158 #define	VGA_CRTC_VDE		0x12
159 #define	VGA_CRTC_SCREEN_OFFSET	0x13
160 #define	VGA_CRTC_ULL		0x14
161 #define	VGA_CRTC_SVB		0x15
162 #define	VGA_CRTC_EVB		0x16
163 #define	VGA_CRTC_CRT_MD		0x17
164 #define		VGA_CRTC_CRT_MD_2BK_CGA		0x01
165 #define		VGA_CRTC_CRT_MD_4BK_HGC		0x02
166 #define		VGA_CRTC_CRT_MD_VT_X2		0x04
167 #define		VGA_CRTC_CRT_MD_WRD_MODE	0x08
168 #define		VGA_CRTC_CRT_MD_ADW_16K		0x20
169 #define		VGA_CRTC_CRT_MD_BYTE_MODE	0x40
170 #define		VGA_CRTC_CRT_MD_NO_RESET	0x80
171 #define	VGA_CRTC_LCM		0x18
172 
173 /*
174  * Sequencer registers
175  */
176 #define	VGA_SEQ_RST_SYN		0x00
177 #define		VGA_SEQ_RST_SYN_ASYNC_RESET	0x00
178 #define		VGA_SEQ_RST_SYN_NO_ASYNC_RESET	0x01
179 #define		VGA_SEQ_RST_SYN_SYNC_RESET	0x00
180 #define		VGA_SEQ_RST_SYN_NO_SYNC_RESET	0x02
181 #define	VGA_SEQ_CLK_MODE	0x01
182 #define		VGA_SEQ_CLK_MODE_8DC		0x01
183 #define	VGA_SEQ_EN_WT_PL	0x02
184 #define		VGA_SEQ_EN_WT_PL_ALL		0x0f
185 #define	VGA_SEQ_CMS		0x03		/* Char Map Select */
186 #define		VGA_SEQ_CMS_SAH			0x20	/* Char. A (bit 2) */
187 #define		VGA_SEQ_CMS_SBH			0x10	/* Char. B (bit 2) */
188 #define		VGA_SEQ_CMS_SA			0x0C	/* Char. A (bit 0+1) */
189 #define		VGA_SEQ_CMS_SB			0x03	/* Char. B (bit 0+1) */
190 #define	VGA_SEQ_MEM_MODE	0x04
191 #define		VGA_SEQ_MEM_MODE_EXT_MEM	0x02
192 #define		VGA_SEQ_MEM_MODE_SEQ_MODE	0x04
193 #define		VGA_SEQ_MEM_MODE_CHN_4M		0x08
194 
195 /*
196  * Graphics Controller
197  */
198 #define	VGA_GRC_SET_RST_DT	0x00
199 #define	VGA_GRC_EN_S_R_DT	0x01
200 #define	VGA_GRC_COLOR_CMP	0x02
201 #define	VGA_GRC_WT_ROP_RTC	0x03
202 #define	VGA_GRC_RD_PL_SL	0x04
203 #define	VGA_GRC_GRP_MODE	0x05
204 #define		VGA_GRC_GRP_MODE_SHF_MODE_256	0x40
205 #define	VGA_GRC_MISC_GM		0x06
206 #define		VGA_GRC_MISC_GM_GRAPH		0x01
207 #define		VGA_GRC_MISC_GM_MEM_MAP_1	0x04
208 #define	VGA_GRC_CMP_DNTC	0x07
209 #define		VGA_GRC_CMP_DNTC_ALL		0x0f
210 #define	VGA_GRC_BIT_MASK	0x08
211 
212 /*
213  * Attribute controller registers
214  */
215 #define	VGA_ATR_PAS		0x20	/* Palette Address Source */
216 #define	VGA_ATR_PLT_REG		0x00	/* Palette Register */
217 #define	VGA_ATR_NUM_PLT		0x10	/* Palette Register count */
218 #define	VGA_ATR_MODE		0x10	/* Attribute mode control */
219 #define		VGA_ATR_MODE_GRAPH	0x01	/* Graphics enable */
220 #define		VGA_ATR_MODE_MONO	0x02	/* Monochrome emulation */
221 #define		VGA_ATR_MODE_9WIDE	0x04	/* Line Graphics enable */
222 #define		VGA_ATR_MODE_BLINK	0x08	/* Blink enable */
223 #define		VGA_ATR_MODE_PPM	0x20	/* Pixel panning mode */
224 #define		VGA_ATR_MODE_256CLR	0x40	/* 8-bit color enable */
225 #define		VGA_ATR_MODE_P54S	0x80	/* Palette bits 4-5 select */
226 #define	VGA_ATR_BDR_CLR		0x11
227 #define	VGA_ATR_DISP_PLN	0x12
228 #define		VGA_ATR_DISP_PLN_ALL	0x0f
229 #define	VGA_ATR_H_PX_PAN	0x13
230 #define	VGA_ATR_PX_PADD		0x14
231 
232 /*
233  * Low-memory frame buffer definitions.  These are relative to the
234  * A0000 register set.
235  */
236 #define	VGA_MONO_BASE		0x10000	/* Base of monochrome text */
237 #define	VGA_COLOR_BASE		0x18000	/* Base of color text */
238 #define	VGA_TEXT_SIZE		0x8000	/* Size of text frame buffer */
239 
240 #ifdef	__cplusplus
241 }
242 #endif
243 
244 #endif /* _SYS_VGAREG_H */
245