stic.c revision 1.2
1 /* $NetBSD: stic.c,v 1.2 1999/01/16 06:36:42 nisimura Exp $ */ 2 3 /* 4 * Copyright (c) 1997 Jonathan Stone 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 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Jonathan Stone for 18 * the NetBSD Project. 19 * 4. The name of the author may not be used to endorse or promote products 20 * derived from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 /* 35 * Some portions derived from Mach: ga_hdw.c 2.5 93/05/17 15:16:52 rvb 36 */ 37 38 /* 39 * Mach Operating System 40 * Copyright (c) 1991,1990,1989 Carnegie Mellon University 41 * All Rights Reserved. 42 * 43 * Permission to use, copy, modify and distribute this software and its 44 * documentation is hereby granted, provided that both the copyright 45 * notice and this permission notice appear in all copies of the 46 * software, derivative works or modified versions, and any portions 47 * thereof, and that both notices appear in supporting documentation. 48 * 49 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 50 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR 51 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 52 * 53 * Carnegie Mellon requests users of this software to return to 54 * 55 * Software Distribution Coordinator or Software.Distribution (at) CS.CMU.EDU 56 * School of Computer Science 57 * Carnegie Mellon University 58 * Pittsburgh PA 15213-3890 59 * 60 * any improvements or extensions that they make and grant Carnegie Mellon 61 * the rights to redistribute these changes. 62 */ 63 /* 64 * HISTORY 65 * $Log: stic.c,v $ 66 * Revision 1.2 1999/01/16 06:36:42 nisimura 67 * - Don't use void pointer for arithmetic. 68 * 69 * Revision 1.1 1997/11/11 04:47:57 jonathan 70 * chipset driver for DEC pixelstamp and STIC (stamp Interface chip). 71 * 72 * Revision 2.3 93/02/05 08:06:14 danner 73 * Mods to *compile* on Flamingo. 74 * [93/02/04 01:51:39 af] 75 * 76 * Revision 2.2 92/05/22 15:47:02 jfriedl 77 * Disable interrupts on exit. 78 * [92/05/20 22:53:19 af] 79 * 80 * Created, with some Ultrix code. 81 * [92/05/09 af] 82 * 83 */ 84 /* 85 * File: ga_misc.c 86 * Author: Alessandro Forin, Carnegie Mellon University 87 * Date: 5/92 88 * 89 * Driver for the PMAG-CA 2D graphic board. 90 * 91 */ 92 93 /************************************************************************ 94 * * 95 * Copyright (c) 1989 by * 96 * Digital Equipment Corporation, Maynard, MA * 97 * All rights reserved. * 98 * * 99 * This software is furnished under a license and may be used and * 100 * copied only in accordance with the terms of such license and * 101 * with the inclusion of the above copyright notice. This * 102 * software or any other copies thereof may not be provided or * 103 * otherwise made available to any other person. No title to and * 104 * ownership of the software is hereby transferred. * 105 * * 106 * The information in this software is subject to change without * 107 * notice and should not be construed as a commitment by Digital * 108 * Equipment Corporation. * 109 * * 110 * Digital assumes no responsibility for the use or reliability * 111 * of its software on equipment which is not supplied by Digital. * 112 * * 113 ************************************************************************/ 114 115 #include <sys/cdefs.h> 116 __KERNEL_RCSID(0, "$NetBSD: stic.c,v 1.2 1999/01/16 06:36:42 nisimura Exp $"); 117 118 119 /* 120 * Support for the DEC pixelstamp and stamp asic (STIC) 121 * chips used on 2-D (PMAG-C) and 3-D (PMAG-D, PMAG-E, PMAG-F) 122 * DEC turbochannel option cards. 123 */ 124 125 #include <sys/param.h> 126 #include <sys/systm.h> 127 128 #include <dev/tc/tcvar.h> 129 #include <dev/tc/sticvar.h> 130 131 #include <machine/cpu.h> 132 #include <machine/bus.h> 133 134 int stic_init __P((struct stic_softc *stic_sc)); 135 136 int 137 stic_init(stic_sc) 138 struct stic_softc *stic_sc; 139 { 140 int modtype, xconfig, yconfig, config; 141 volatile struct stic_regs *stic = STICADDR(stic_sc->stic_addr); 142 caddr_t stamp_addr = stic_sc->stamp_addr; 143 144 /* 145 * Initialize STIC interface chip registers. 146 * magic sequence from logic analyser. 147 */ 148 stic->sticsr = 0x00000030; /* Get the STIC's attention. */ 149 tc_wmb(); 150 DELAY(4000); /* wait 4ms for STIC to respond. */ 151 stic->sticsr = 0x00000000; /* Hit the STIC's csr again... */ 152 stic->buscsr = 0xffffffff; /* and bash its bus-acess csr. */ 153 tc_wmb(); /* Blam! */ 154 155 DELAY(20000); /* wait until the stic recovers... */ 156 157 #ifdef notyet 158 /* init vdac */ 159 bt459_init(stic_sc->vdac_addr); 160 #endif 161 162 /* 163 * the following code is taken from Mach 3.0 MK85 source. 164 */ 165 166 /* 167 * Initialize Stamp config register for model 0. 168 */ 169 modtype = stic->modcl; 170 xconfig = (modtype & 0x800) >> 11; 171 yconfig = (modtype & 0x600) >> 9; 172 config = (yconfig << 1) | xconfig; 173 174 /* stamp0 config */ 175 *(int32_t *)(stamp_addr+0x000b0) = config; 176 *(int32_t *)(stamp_addr+0x000b4) = 0x0; 177 178 if (yconfig > 0) { 179 /* 180 * pixelstamp v1 configuration 181 */ 182 *(int *)(stamp_addr+0x100b0) = 0x8|config; 183 *(int *)(stamp_addr+0x100b4) = 0x0; 184 if (yconfig > 1) { 185 /* pixelstamp v2 & v3 config */ 186 } 187 } 188 189 /* 190 * Initialize STIC video registers. 191 * (if we knew what we were doing, we might be able to frob this 192 * to work at different montior frequencies.) 193 */ 194 stic->vblank = (1024 << 16) | 1063; 195 stic->vsync = (1027 << 16) | 1030; 196 stic->hblank = (255 << 16) | 340; 197 stic->hsync2 = 245; 198 stic->hsync = (261 << 16) | 293; 199 200 tc_wmb(); /* wbflush() */ 201 202 stic->ipdvint = STIC_INT_CLR; 203 stic->sticsr = 0x00000008; 204 tc_wmb(); /* wbflush() */ 205 return (0); 206 } 207
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