1/*	$NetBSD: vidc.h,v 1.14 2024/02/05 21:39:52 andvar Exp $	*/
2
3/*
4 * Copyright (c) 1994,1995 Mark Brinicombe.
5 * Copyright (c) 1994,1995 Brini.
6 * All rights reserved.
7 *
8 * This code is derived from software written for Brini by Mark Brinicombe
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 * 3. All advertising materials mentioning features or use of this software
19 *    must display the following acknowledgement:
20 *	This product includes software developed by Brini.
21 * 4. The name of the company nor the name of the author may be used to
22 *    endorse or promote products derived from this software without specific
23 *    prior written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY BRINI ``AS IS'' AND ANY EXPRESS OR IMPLIED
26 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
27 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
28 * IN NO EVENT SHALL BRINI OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
29 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
30 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
31 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 * SUCH DAMAGE.
36 *
37 * RiscBSD kernel project
38 *
39 * vidc.h
40 *
41 * VIDC20 registers
42 *
43 * Created      : 18/09/94
44 *
45 * Based on kate/display/vidc.h
46 */
47
48/*
49 * This should be private to the vidc directory but there are still dependencies
50 * between the vidc and the riscpc virtual console (struct vidc_mode) that
51 * means this file must be exported to userland.
52 * With the import of the new console code this will go away.
53 */
54
55#ifndef	_ARM32_VIDC_H_
56#define	_ARM32_VIDC_H_
57
58#include <dev/videomode/videomode.h>
59#include <machine/vidc_machdep.h>
60
61/*
62 * Current VIDC base set in initarm()
63 * since the current code isnt busspaceified, we need to set it manually ...
64 * this is to allow the VIDC to be moved.
65 */
66extern int *vidc_base;
67
68
69/* Video registers */
70
71#define VIDC_PALETTE 0x00000000
72#define VIDC_PALREG  0x10000000
73
74#define VIDC_BCOL    0x40000000
75#define VIDC_CP0     0x40000000
76#define VIDC_CP1     0x50000000
77#define VIDC_CP2     0x60000000
78#define VIDC_CP3     0x70000000
79
80#define VIDC_HCR     0x80000000
81#define VIDC_HSWR    0x81000000
82#define VIDC_HBSR    0x82000000
83#define VIDC_HDSR    0x83000000
84#define VIDC_HDER    0x84000000
85#define VIDC_HBER    0x85000000
86#define VIDC_HCSR    0x86000000
87#define VIDC_HIR     0x87000000
88
89#define VIDC_VCR     0x90000000
90#define VIDC_VSWR    0x91000000
91#define VIDC_VBSR    0x92000000
92#define VIDC_VDSR    0x93000000
93#define VIDC_VDER    0x94000000
94#define VIDC_VBER    0x95000000
95#define VIDC_VCSR    0x96000000
96#define VIDC_VCER    0x97000000
97
98#define VIDC_EREG    0xc0000000
99#define VIDC_FSYNREG 0xd0000000
100#define VIDC_CONREG  0xe0000000
101#define VIDC_DCTL    0xf0000000
102
103/* VIDC palette macros */
104
105#define VIDC_RED(r)   (r)
106#define VIDC_GREEN(g) ((g) << 8)
107#define VIDC_BLUE(b)  ((b) << 16)
108#define VIDC_COL(r, g, b) (VIDC_RED(r) | VIDC_GREEN(g) | VIDC_BLUE(b))
109
110
111/* Sound registers */
112
113#define VIDC_SIR0    0xa0000000
114#define VIDC_SIR1    0xa1000000
115#define VIDC_SIR2    0xa2000000
116#define VIDC_SIR3    0xa3000000
117#define VIDC_SIR4    0xa4000000
118#define VIDC_SIR5    0xa5000000
119#define VIDC_SIR6    0xa6000000
120#define VIDC_SIR7    0xa7000000
121
122#define VIDC_SFR     0xb0000000
123#define VIDC_SCR     0xb1000000
124
125#define SIR_LEFT_100  0x01
126#define SIR_LEFT_83   0x02
127#define SIR_LEFT_67   0x03
128#define SIR_CENTRE    0x04
129#define SIR_RIGHT_67  0x05
130#define SIR_RIGHT_83  0x06
131#define SIR_RIGHT_100 0x07
132
133#define SCR_SCLR	0x08
134#define SCR_SDAC	0x04
135#define SCR_SERIAL	0x02
136#define SCR_CLKSEL	0x01
137
138/* Video display addresses */
139
140/* Where the display memory is mapped */
141/* note that there's not normally more than 2MB */
142#define VMEM_VBASE 0xf7000000
143
144/* Where the VRAM will be found */
145
146#define VRAM_BASE  0x02000000
147
148#ifndef _LOCORE
149
150/* Video memory descriptor */
151
152typedef struct
153  {
154    u_int vidm_vbase;	/* virtual base of video memory */
155    u_int vidm_pbase;	/* physical base of video memory */
156    u_int vidm_size;	/* video memory size */
157    int   vidm_type;	/* video memory type */
158  } videomemory_t;
159
160#define VIDEOMEM_TYPE_VRAM 0x01
161#define VIDEOMEM_TYPE_DRAM 0x02
162
163/* Structures and prototypes for vidc handling functions */
164
165struct vidc_state {
166	int palette[256];
167	int palreg;
168	int bcol;
169	int cp1;
170	int cp2;
171	int cp3;
172	int hcr, hswr, hbsr, hdsr, hder, hber, hcsr;
173	int hir;
174	int vcr, vswr, vbsr, vdsr, vder, vber, vcsr, vcer;
175	int ereg;
176	int fsynreg;
177	int conreg;
178	int dctl;
179};
180
181extern int vidc_fref;		/* reference frequency of detected VIDC */
182
183extern struct vidc_state vidc_current[];
184
185struct vidc_mode {
186	struct	videomode timings;
187	int	log2_bpp;
188};
189
190#endif	/* !_LOCORE */
191
192#endif	/* !_ARM32_VIDC_H */
193
194/* End of vidc.h */
195
196