1 /* $NetBSD: sfbreg.h,v 1.4 2025/02/03 22:30:15 andvar Exp $ */ 2 3 /* 4 * Copyright (c) 1996 Carnegie-Mellon University. 5 * All rights reserved. 6 * 7 * Author: Chris G. Demetriou 8 * 9 * Permission to use, copy, modify and distribute this software and 10 * its documentation is hereby granted, provided that both the copyright 11 * notice and this permission notice appear in all copies of the 12 * software, derivative works or modified versions, and any portions 13 * thereof, and that both notices appear in supporting documentation. 14 * 15 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 16 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 17 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 18 * 19 * Carnegie Mellon requests users of this software to return to 20 * 21 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 22 * School of Computer Science 23 * Carnegie Mellon University 24 * Pittsburgh PA 15213-3890 25 * 26 * any improvements or extensions that they make and grant Carnegie the 27 * rights to redistribute these changes. 28 */ 29 30 /* 31 * Smart ("CXTurbo") Frame Buffer definitions, from: 32 * ``DEC 3000 300/400/500/600/700/800/900 AXP Models System Programmer's Manual'' 33 * (DEC order number EK-D3SYS-PM), section 6. 34 * 35 * All definitions are in "dense" TURBOchannel space. 36 */ 37 38 #ifndef _DEV_TC_SFBREG_H_ 39 #define _DEV_TC_SFBREG_H_ 40 41 /* 42 * Size of the SFB address space. 43 */ 44 #define SFB_SIZE 0x1000000 45 46 /* 47 * Offsets into slot space of each functional unit. 48 */ 49 #define SFB_ASIC_OFFSET 0x0100000 /* SFB ASIC Control Registers */ 50 #define SFB_ASIC_SIZE 0x0020000 51 #define SFB_RAMDAC_OFFSET 0x01c0000 /* BrookTree RAMDAC */ 52 #define SFB_RAMDAC_SIZE 0x0040000 53 #define SFB_FB_OFFSET 0x0200000 /* Frame buffer */ 54 #define SFB_FB_SIZE 0x0200000 55 #define SFB_OSBM_OFFSET 0x0600000 /* Off-screen buffer memory */ 56 #define SFB_OSBM_SIZE 0x0200000 57 58 /* 59 * SFB ASIC registers (offsets from SFB_ASIC_OFFSET). 60 */ 61 #define SFB_ASIC_COPYBUF_0 0x0000 /* Copy buffer register 0 (R/W) */ 62 #define SFB_ASIC_COPYBUF_1 0x0004 /* Copy buffer register 1 (R/W) */ 63 #define SFB_ASIC_COPYBUF_2 0x0008 /* Copy buffer register 2 (R/W) */ 64 #define SFB_ASIC_COPYBUF_3 0x000c /* Copy buffer register 3 (R/W) */ 65 #define SFB_ASIC_COPYBUF_4 0x0010 /* Copy buffer register 4 (R/W) */ 66 #define SFB_ASIC_COPYBUF_5 0x0014 /* Copy buffer register 5 (R/W) */ 67 #define SFB_ASIC_COPYBUF_6 0x0018 /* Copy buffer register 6 (R/W) */ 68 #define SFB_ASIC_COPYBUF_7 0x001c /* Copy buffer register 7 (R/W) */ 69 #define SFB_ASIC_FG 0x0020 /* Foreground (R/W) */ 70 #define SFB_ASIC_BG 0x0024 /* Background (R/W) */ 71 #define SFB_ASIC_PLANEMASK 0x0028 /* PlaneMask (R/W) */ 72 #define SFB_ASIC_PIXELMASK 0x002c /* PixelMask (R/W) */ 73 #define SFB_ASIC_MODE 0x0030 /* Mode (R/W) */ 74 #define SFB_ASIC_ROP 0x0034 /* RasterOp (R/W) */ 75 #define SFB_ASIC_PIXELSHIFT 0x0038 /* PixelShift (R/W) */ 76 #define SFB_ASIC_ADDRESS 0x003c /* Address (R/W) */ 77 #define SFB_ASIC_BRES1 0x0040 /* Bresenham register 1 (R/W) */ 78 #define SFB_ASIC_BRES2 0x0044 /* Bresenham register 2 (R/W) */ 79 #define SFB_ASIC_BRES3 0x0048 /* Bresenham register 3 (R/W) */ 80 #define SFB_ASIC_BCONT 0x004c /* Bcont (W) */ 81 #define SFB_ASIC_DEEP 0x0050 /* Deep (R/W) */ 82 #define SFB_ASIC_START 0x0054 /* Start (W) */ 83 #define SFB_ASIC_CLEAR_INTR 0x0058 /* Clear Interrupt (W) */ 84 #define SFB_ASIC_VIDEO_REFRESH 0x0060 /* Video refresh counter (R/W) */ 85 #define SFB_ASIC_VIDEO_HSETUP 0x0064 /* Video horizontal setup (R/W) */ 86 #define SFB_ASIC_VIDEO_VSETUP 0x0068 /* Video vertical setup (R/W) */ 87 #define SFB_ASIC_VIDEO_BASE 0x006c /* Video base address (R/W) */ 88 #define SFB_ASIC_VIDEO_VALID 0x0070 /* Video valid (W) */ 89 #define SFB_ASIC_ENABLE_INTR 0x0074 /* Enable/Disable Interrupts (W) */ 90 #define SFB_ASIC_TCCLK 0x0078 /* TCCLK count (R/W) */ 91 #define SFB_ASIC_VIDCLK 0x007c /* VIDCLK count (R/W) */ 92 93 /* 94 * Same as above but in 32-bit units, and named like the corresponding 95 * TGA registers, for easy comparison. 96 */ 97 typedef u_int32_t sfb_reg_t; 98 99 #define SFB_REG_GCBR0 0x000 /* Copy buffer 0 */ 100 #define SFB_REG_GCBR1 0x001 /* Copy buffer 1 */ 101 #define SFB_REG_GCBR2 0x002 /* Copy buffer 2 */ 102 #define SFB_REG_GCBR3 0x003 /* Copy buffer 3 */ 103 #define SFB_REG_GCBR4 0x004 /* Copy buffer 4 */ 104 #define SFB_REG_GCBR5 0x005 /* Copy buffer 5 */ 105 #define SFB_REG_GCBR6 0x006 /* Copy buffer 6 */ 106 #define SFB_REG_GCBR7 0x007 /* Copy buffer 7 */ 107 108 #define SFB_REG_GFGR 0x008 /* Foreground */ 109 #define SFB_REG_GBGR 0x009 /* Background */ 110 #define SFB_REG_GPMR 0x00a /* Plane Mask */ 111 #define SFB_REG_GPXR_S 0x00b /* Pixel Mask (one-shot) */ 112 #define SFB_REG_GMOR 0x00c /* Mode */ 113 #define SFB_REG_GOPR 0x00d /* Raster Operation */ 114 #define SFB_REG_GPSR 0x00e /* Pixel Shift */ 115 #define SFB_REG_GADR 0x00f /* Address */ 116 117 #define SFB_REG_GB1R 0x010 /* Bresenham 1 */ 118 #define SFB_REG_GB2R 0x011 /* Bresenham 2 */ 119 #define SFB_REG_GB3R 0x012 /* Bresenham 3 */ 120 121 #define SFB_REG_GCTR 0x013 /* Continue */ 122 #define SFB_REG_GDER 0x014 /* Deep */ 123 #define SFB_REG_GREV 0x015 /* Start/Version on SFB, 124 125 * Revision on SFB2 */ 126 #define SFB_REG_CINT 0x016 /* Clear Interrupt */ 127 /* 0x017 - unused */ 128 #define SFB_REG_VRFR 0x018 /* Video Refresh */ 129 #define SFB_REG_VHCR 0x019 /* Horizontal Control */ 130 #define SFB_REG_VVCR 0x01a /* Vertical Control */ 131 #define SFB_REG_VVBR 0x01b /* Video Base Address */ 132 #define SFB_REG_VVVR 0x01c /* Video Valid */ 133 #define SFB_REG_SISR 0x01d /* Enable/Disable Interrupts */ 134 #define SFB_REG_TCCLK 0x01e /* TCCLK count (R/W) */ 135 #define SFB_REG_VIDCLK 0x01f /* VIDCLK count (R/W) */ 136 137 #endif /* _DEV_TC_SFBREG_H_ */ 138