1 /* $NetBSD: ims332reg.h,v 1.3 2005/12/11 12:21:27 christos 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