xref: /netbsd/sys/dev/ic/ims332reg.h (revision bf9ec67e)
1 /* $NetBSD: ims332reg.h,v 1.1 1998/10/28 04:10:37 nisimura Exp $ */
2 
3 /*
4  * Mach Operating System
5  * Copyright (c) 1991,1990,1989 Carnegie Mellon University
6  * All Rights Reserved.
7  *
8  * Permission to use, copy, modify and distribute this software and its
9  * documentation is hereby granted, provided that both the copyright
10  * notice and this permission notice appear in all copies of the
11  * software, derivative works or modified versions, and any portions
12  * thereof, and that both notices appear in supporting documentation.
13  *
14  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
15  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
16  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
17  *
18  * Carnegie Mellon requests users of this software to return to
19  *
20  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
21  *  School of Computer Science
22  *  Carnegie Mellon University
23  *  Pittsburgh PA 15213-3890
24  *
25  * any improvements or extensions that they make and grant Carnegie Mellon
26  * the rights to redistribute these changes.
27  */
28 
29 /*
30  *	Defines for the Inmos IMS-G332 Colour video controller
31  * 	Author: Alessandro Forin, Carnegie Mellon University
32  *	See: IMS G332 Colour Video Controller, 1990 Databook, pg 139-163,
33  *		Inmos, Ltd.
34  */
35 
36 /*
37  * Although the chip is built to be memory-mapped
38  * it can be programmed for 32 or 64 bit addressing.
39  * Moreover, the hardware bits have been twisted
40  * even more on the machine I am writing this for.
41  * So I'll just define the chip's offsets and leave
42  * it to the implementation to define the rest.
43  */
44 
45 #define	IMS332_REG_BOOT			0x000	/* boot time config */
46 
47 #define	IMS332_REG_HALF_SYNCH		0x021	/* datapath registers */
48 #define	IMS332_REG_BACK_PORCH		0x022
49 #define	IMS332_REG_DISPLAY		0x023
50 #define	IMS332_REG_SHORT_DIS		0x024
51 #define	IMS332_REG_BROAD_PULSE		0x025
52 #define	IMS332_REG_V_SYNC		0x026
53 #define	IMS332_REG_V_PRE_EQUALIZE	0x027
54 #define	IMS332_REG_V_POST_EQUALIZE	0x028
55 #define	IMS332_REG_V_BLANK		0x029
56 #define	IMS332_REG_V_DISPLAY		0x02a
57 #define	IMS332_REG_LINE_TIME		0x02b
58 #define	IMS332_REG_LINE_START		0x02c
59 #define	IMS332_REG_MEM_INIT		0x02d
60 #define	IMS332_REG_XFER_DELAY		0x02e
61 
62 #define	IMS332_REG_COLOR_MASK		0x040	/* color mask register */
63 
64 #define	IMS332_REG_CSR_A		0x060
65 
66 #define	IMS332_REG_CSR_B		0x070
67 
68 #define	IMS332_REG_TOP_SCREEN		0x080	/* top-of-screen offset */
69 
70 #define	IMS332_REG_CURSOR_LUT_0		0x0a1	/* cursor palette */
71 #define	IMS332_REG_CURSOR_LUT_1		0x0a2
72 #define	IMS332_REG_CURSOR_LUT_2		0x0a3
73 
74 #define	IMS332_REG_RGB_CKSUM_0		0x0c0	/* test registers */
75 #define	IMS332_REG_RGB_CKSUM_1		0x0c1
76 #define	IMS332_REG_RGB_CKSUM_2		0x0c2
77 
78 #define	IMS332_REG_CURSOR_LOC		0x0c7	/* cursor location */
79 
80 #define	IMS332_REG_LUT_BASE		0x100	/* color palette */
81 #define	IMS332_REG_LUT_END		0x1ff
82 
83 #define	IMS332_REG_CURSOR_RAM		0x200	/* cursor bitmap */
84 #define	IMS332_REG_CURSOR_RAM_END	0x3ff
85 
86 /*
87  * Control register A
88  */
89 
90 #define IMS332_CSR_A_VTG_ENABLE		0x000001	/* vertical timing generator */
91 #define IMS332_CSR_A_INTERLACED		0x000002	/* screen format */
92 #define IMS332_CSR_A_CCIR		0x000004	/* default is EIA */
93 #define IMS332_CSR_A_SLAVE_SYNC		0x000008	/* else from our pll */
94 #define IMS332_CSR_A_PLAIN_SYNC		0x000010	/* else tesselated */
95 #define IMS332_CSR_A_SEPARATE_SYNC	0x000020	/* else composite */
96 #define IMS332_CSR_A_VIDEO_ONLY		0x000040	/* else video+sync */
97 #define IMS332_CSR_A_BLANK_PEDESTAL	0x000080	/* blank level */
98 #define IMS332_CSR_A_CBLANK_IS_OUT	0x000100
99 #define IMS332_CSR_A_CBLANK_NO_DELAY	0x000200
100 #define IMS332_CSR_A_FORCE_BLANK	0x000400
101 #define IMS332_CSR_A_BLANK_DISABLE	0x000800
102 #define IMS332_CSR_A_VRAM_INCREMENT	0x003000
103 #	define IMS332_VRAM_INC_1	0x000000
104 #	define IMS332_VRAM_INC_256	0x001000	/* except interlaced->2 */
105 #	define IMS332_VRAM_INC_512	0x002000
106 #	define IMS332_VRAM_INC_1024	0x003000
107 #define IMS332_CSR_A_DMA_DISABLE	0x004000
108 #define IMS332_CSR_A_SYNC_DELAY_MASK	0x038000	/* 0-7 VTG clk delays */
109 #define IMS332_CSR_A_PIXEL_INTERLEAVE	0x040000
110 #define IMS332_CSR_A_DELAYED_SAMPLING	0x080000
111 #define IMS332_CSR_A_BITS_PER_PIXEL	0x700000
112 #	define IMS332_BPP_1		0x000000
113 #	define IMS332_BPP_2		0x100000
114 #	define IMS332_BPP_4		0x200000
115 #	define IMS332_BPP_8		0x300000
116 #	define IMS332_BPP_15		0x400000
117 #	define IMS332_BPP_16		0x500000
118 #define IMS332_CSR_A_DISABLE_CURSOR	0x800000
119 
120 
121 /*
122  * Control register B is mbz
123  */
124 
125 /*
126  * Boot register
127  */
128 
129 #define	IMS332_BOOT_PLL			0x00001f	/* xPLL, binary */
130 #define	IMS332_BOOT_CLOCK_PLL		0x000020	/* else xternal */
131 #define	IMS332_BOOT_64_BIT_MODE		0x000040	/* else 32 */
132 #define	IMS332_BOOT_xxx			0xffff80	/* reserved, mbz */
133