xref: /netbsd-src/sys/arch/evbppc/wii/dev/vireg.h (revision f5dff4bda8e057e10042cff439883c0c98a6e97b)
1 /* $NetBSD: vireg.h,v 1.3 2024/10/13 16:21:37 jmcneill Exp $ */
2 
3 /*-
4  * Copyright (c) 2024 Jared McNeill <jmcneill@invisible.ca>
5  * 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
9  * are met:
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  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  */
28 
29 #ifndef _WII_DEV_VIREG_H
30 #define _WII_DEV_VIREG_H
31 
32 /*
33  * Nintendo Wii Video Interface (VI) registers, from
34  * https://www.gc-forever.com/yagcd/
35  */
36 
37 /* [2B] VTR - Vertical Timing Register */
38 #define VI_VTR		0x00
39 #define	 VI_VTR_ACV	__BITS(13,4)
40 #define	 VI_VTR_EQU	__BITS(3,0)
41 
42 /* [2B] DCR - Display Configuration Register */
43 #define VI_DCR		0x02
44 #define	 VI_DCR_FMT	__BITS(9,8)
45 #define   VI_DCR_FMT_NTSC	0
46 #define   VI_DCR_FMT_PAL	1
47 #define   VI_DCR_FMT_MPAL	2
48 #define   VI_DCR_FMT_DEBUG	3
49 #define  VI_DCR_LE1	__BITS(7,6)
50 #define  VI_DCR_LE0	__BITS(5,4)
51 #define	 VI_DCR_DLR	__BIT(3)
52 #define  VI_DCR_NIN	__BIT(2)
53 #define  VI_DCR_RST	__BIT(1)
54 #define  VI_DCR_ENB	__BIT(0)
55 
56 /* [4B] HTR0 - Horizontal Timing 0 */
57 #define VI_HTR0		0x04
58 #define	 VI_HTR0_HCS	__BITS(30,24)
59 #define	 VI_HTR0_HCE	__BITS(22,16)
60 #define	 VI_HTR0_HLW	__BITS(8,0)
61 
62 /* [4B] HTR1 - Horizontal Timing 1 */
63 #define VI_HTR1		0x08
64 #define	 VI_HTR1_HBS	__BITS(26,17)
65 #define  VI_HTR1_HBE	__BITS(16,7)
66 #define	 VI_HTR1_HSY	__BITS(6,0)
67 
68 /* [4B] VTO - Odd Field Vertical Timing Register */
69 #define VI_VTO		0x0c
70 #define  VI_VTO_PSB	__BITS(25,16)
71 #define  VI_VTO_PRB	__BITS(9,0)
72 
73 /* [4B] VTE - Even Field Vertical Timing Register */
74 #define VI_VTE		0x10
75 #define  VI_VTE_PSB	__BITS(25,16)
76 #define  VI_VTE_PRB	__BITS(9,0)
77 
78 /* [4B] BBOI - Odd Field Burst Blanking Interval Register */
79 #define VI_BBOI		0x14
80 #define  VI_BBOI_BE3	__BITS(31,21)
81 #define	 VI_BBOI_BS3	__BITS(20,16)
82 #define  VI_BBOI_BE1	__BITS(15,5)
83 #define  VI_BBOI_BS1	__BITS(4,0)
84 
85 /* [4B] BBEI - Even Field Burst Blanking Interval Register */
86 #define VI_BBEI		0x18
87 #define  VI_BBEI_BE4	__BITS(31,21)
88 #define	 VI_BBEI_BS4	__BITS(20,16)
89 #define  VI_BBEI_BE2	__BITS(15,5)
90 #define  VI_BBEI_BS2	__BITS(4,0)
91 
92 /* [4B] TFBL - Top Field Base Register (L) */
93 #define VI_TFBL		0x1c
94 #define  VI_TFBL_PGOFF	__BIT(28)
95 #define  VI_TFBL_XOF	__BITS(27,24)
96 #define  VI_TFBL_FBB	__BITS(23,0)
97 
98 /* [4B] TFBR - Top Field Base Register (R) */
99 #define VI_TFBR		0x20
100 #define	 VI_TFBR_FBB	__BITS(23,0)
101 
102 /* [4B] BFBL - Bottom Field Base Register (L) */
103 #define VI_BFBL		0x24
104 #define	 VI_BFBL_PGOFF	__BIT(28)
105 #define  VI_BFBL_XOF	__BITS(27,24)
106 #define	 VI_BFBL_FBB	__BITS(23,0)
107 
108 /* [4B] BFBR - Bottom Field Base Register (R) */
109 #define VI_BFBR		0x28
110 #define	 VI_BFBR_FBB	__BITS(23,0)
111 
112 /* [2B] DPV - Current Vertical Position */
113 #define VI_DPV		0x2c
114 #define  VI_DPV_VCT	__BITS(10,0)
115 
116 /* [2B] DPH - Current Horizontal Position */
117 #define VI_DPH		0x2e
118 #define	 VI_DPH_HCT	__BITS(10,0)
119 
120 /* [4B] DI[0-3] - Display Interrupt 0-3 */
121 #define VI_DI0		0x30
122 #define VI_DI1		0x34
123 #define	VI_DI2		0x38
124 #define	VI_DI3		0x3c
125 #define  VI_DI_INT	__BIT(31)
126 #define  VI_DI_ENB	__BIT(28)
127 #define	 VI_DI_VCT	__BITS(25,16)
128 #define	 VI_DI_HCT	__BITS(9,0)
129 
130 /* [4B] DL[0-1] - Display Latch Register 0-1 */
131 #define VI_DL0		0x40
132 #define	VI_DL1		0x44
133 #define	 VI_DL_TRG	__BIT(31)
134 #define	 VI_DL_VCT	__BITS(26,16)
135 #define  VI_DL_HCT	__BITS(10,0)
136 
137 /* [2B] PICCONF - Picture Configuration Register */
138 #define VI_PICCONF	0x48
139 #define  VI_PICCONF_READS	__BITS(15,8)
140 #define	 VI_PICCONF_STRIDES	__BITS(7,0)
141 
142 /* [2B] HSR - Horizontal Scaling Register */
143 #define VI_HSR		0x4a
144 #define	 VI_HSR_HS_EN	__BIT(12)
145 #define	 VI_HSR_STP	__BITS(8,0)
146 
147 /* [4B] FCT[0-6] - Filter Coefficient Table 0-6 */
148 #define VI_FCT0		0x4c
149 #define VI_FCT1		0x50
150 #define VI_FCT2		0x54
151 #define VI_FCT3		0x58
152 #define VI_FCT4		0x5c
153 #define VI_FCT5		0x60
154 #define VI_FCT6		0x64
155 
156 /* [4B] ??? */
157 #define VI_UNKNOWN_68H	0x68
158 
159 /* [2B] VICLK - VI Clock Select Register */
160 #define	VI_VICLK	0x6c
161 #define	 VI_VICLK_SEL	__BIT(0)
162 #define	  VI_VICLK_SEL_27MHZ	0
163 #define	  VI_VICLK_SEL_54MHZ	1
164 
165 /* [2B] VISEL - VI DTV Status Register */
166 #define VI_VISEL	0x6e
167 #define	 VI_VISEL_SEL			__BIT(2)
168 #define	 VI_VISEL_COMPONENT_CABLE	__BIT(0)
169 
170 /* [2B] VI_HSCALINGW - Horizontal Scaling Width */
171 #define VI_HSCALINGW	0x70
172 #define  VI_HSCALINGW_WIDTH	__BITS(9,0)
173 
174 /* [2B] HBE - Border HBE */
175 #define VI_HBE		0x72
176 #define	 VI_HBE_BRDR_EN	__BIT(15)
177 #define	 VI_HBE_HBE656	__BITS(9,0)
178 
179 /* [2B] HBS - Border HBS */
180 #define VI_HBS		0x74
181 #define  VI_HBS_HBS656	__BITS(9,0)
182 
183 /* [2B] ??? */
184 #define VI_UNKNOWN_76H	0x76
185 
186 /* [4B] ??? */
187 #define VI_UNKNOWN_78H	0x78
188 
189 /* [4B] ??? */
190 #define VI_UNKNOWN_7CH	0x7c
191 
192 #endif /* !_WII_DEV_VIREG_H */
193