grf_gv.c revision 1.12
1 /* $NetBSD: grf_gv.c,v 1.12 2007/03/04 06:01:06 christos Exp $ */ 2 3 /* 4 * Copyright (c) 1990, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * the Systems Programming Group of the University of Utah Computer 9 * Science Department. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * from: Utah $Hdr: grf_tc.c 1.20 93/08/13$ 36 * 37 * @(#)grf_tc.c 8.4 (Berkeley) 1/12/94 38 */ 39 /* 40 * Copyright (c) 1988 University of Utah. 41 * 42 * This code is derived from software contributed to Berkeley by 43 * the Systems Programming Group of the University of Utah Computer 44 * Science Department. 45 * 46 * Redistribution and use in source and binary forms, with or without 47 * modification, are permitted provided that the following conditions 48 * are met: 49 * 1. Redistributions of source code must retain the above copyright 50 * notice, this list of conditions and the following disclaimer. 51 * 2. Redistributions in binary form must reproduce the above copyright 52 * notice, this list of conditions and the following disclaimer in the 53 * documentation and/or other materials provided with the distribution. 54 * 3. All advertising materials mentioning features or use of this software 55 * must display the following acknowledgement: 56 * This product includes software developed by the University of 57 * California, Berkeley and its contributors. 58 * 4. Neither the name of the University nor the names of its contributors 59 * may be used to endorse or promote products derived from this software 60 * without specific prior written permission. 61 * 62 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 63 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 64 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 65 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 66 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 67 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 68 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 69 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 70 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 71 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 72 * SUCH DAMAGE. 73 * 74 * from: Utah $Hdr: grf_tc.c 1.20 93/08/13$ 75 * 76 * @(#)grf_tc.c 8.4 (Berkeley) 1/12/94 77 */ 78 79 /* 80 * Graphics routines for the X68K native custom chip set. 81 */ 82 83 #include <sys/cdefs.h> 84 __KERNEL_RCSID(0, "$NetBSD: grf_gv.c,v 1.12 2007/03/04 06:01:06 christos Exp $"); 85 86 #include "opt_compat_hpux.h" 87 88 #include <sys/param.h> 89 #include <sys/device.h> 90 #include <sys/errno.h> 91 92 #include <machine/grfioctl.h> 93 94 #include <x68k/dev/grfvar.h> 95 #include <x68k/x68k/iodevice.h> 96 97 #include <machine/cpu.h> 98 99 int gv_init(struct grf_softc *, void *); 100 int gv_mode(struct grf_softc *, u_long, void *); 101 102 /* Initialize hardware. 103 * Must fill in the grfinfo structure in g_softc. 104 * Returns 0 if hardware not present, non-zero ow. 105 */ 106 int 107 gv_init(struct grf_softc *gp, void *addr) 108 { 109 struct grfinfo *gi = &gp->g_display; 110 111 gi->gd_fbwidth = 1024; 112 gi->gd_fbheight = 1024; 113 gi->gd_planes = 4; 114 gi->gd_regaddr = (void *)0x00e80000; 115 gi->gd_regsize = 0x00010000; /* contains system port */ 116 gi->gd_fbaddr = (void *)0x00c00000; 117 gi->gd_fbsize = gi->gd_fbwidth * gi->gd_fbheight * 2; 118 gp->g_regkva = addr; 119 gp->g_fbkva = addr; 120 switch(IODEVbase->io_sram[0x1d]) { 121 case 18: 122 /* 123 * mode 18, 24kHz 124 */ 125 gi->gd_dwidth = 1024; 126 gi->gd_dheight = 848; 127 break; 128 case 19: 129 /* 130 * mode 19, 31kHz VGA mode 131 */ 132 gi->gd_dwidth = 640; 133 gi->gd_dheight = 480; 134 break; 135 default: 136 /* 137 * mode 16, 31kHz (default) 138 */ 139 gi->gd_dwidth = 768; 140 gi->gd_dheight = 512; 141 break; 142 } 143 gi->gd_colors = 16; 144 145 return 1; 146 } 147 148 /* 149 * Change the mode of the display. 150 * Right now all we can do is grfon/grfoff. 151 * Return a UNIX error number or 0 for success. 152 */ 153 /*ARGSUSED*/ 154 int 155 gv_mode(struct grf_softc *gp, u_long cmd, void *data) 156 { 157 int error = 0; 158 159 switch (cmd) { 160 case GM_GRFON: 161 case GM_GRFOFF: 162 break; 163 164 /* 165 * Remember UVA of mapping for GCDESCRIBE. 166 * XXX this should be per-process. 167 */ 168 case GM_MAP: 169 gp->g_data = data; 170 break; 171 172 case GM_UNMAP: 173 gp->g_data = 0; 174 break; 175 176 case GM_GRFSETVMODE: 177 if (*(int *)data == 1) { 178 struct grfinfo *gi = &gp->g_display; 179 volatile struct crtc *crtc = &IODEVbase->io_crtc; 180 /* Reset CRTC, set dwidth and dheight accordingly */ 181 crtc->r20 = (crtc->r20 & 0xFF00) | 0x1a; 182 crtc->r08 = 0x1b; 183 crtc->r07 = 0x19c; 184 crtc->r06 = 0x1c; 185 crtc->r05 = 0x02; 186 crtc->r04 = 0x019f; 187 crtc->r03 = 0x9a; 188 crtc->r02 = 0x1a; 189 crtc->r01 = 0x09; 190 crtc->r00 = 0xa4; 191 gi->gd_dwidth = 1024; 192 gi->gd_dheight = 768; 193 } 194 break; 195 196 default: 197 error = EINVAL; 198 break; 199 } 200 return error; 201 } 202
Indexes created Thu Sep 25 16:09:42 GMT 2025