1 /* $NetBSD: grf_machdep.c,v 1.5 1996/10/13 03:34:48 christos Exp $ */ 2 3 /* 4 * Copyright (c) 1991 University of Utah. 5 * Copyright (c) 1990, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by 9 * the Systems Programming Group of the University of Utah Computer 10 * Science Department. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the University of 23 * California, Berkeley and its contributors. 24 * 4. Neither the name of the University nor the names of its contributors 25 * may be used to endorse or promote products derived from this software 26 * without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 31 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 38 * SUCH DAMAGE. 39 * 40 * from: Utah $Hdr: grf_machdep.c 1.1 92/01/21 41 * 42 * @(#)grf_machdep.c 8.2 (Berkeley) 1/12/94 43 */ 44 45 /* 46 * Graphics display driver for the HP300/400 DIO/DIO-II based machines. 47 * This is the hardware-dependent configuration portion of the driver. 48 */ 49 50 #include <sys/param.h> 51 #include <sys/systm.h> 52 #include <sys/device.h> 53 54 #include <x68k/dev/grfioctl.h> 55 #include <x68k/dev/grfvar.h> 56 #include <x68k/x68k/iodevice.h> 57 58 /* 59 * false when initing for the console. 60 */ 61 extern int x68k_realconfig; 62 63 int grfbusprint __P((void *auxp, const char *)); 64 int grfbusmatch __P((struct device *, void *, void *)); 65 void grfbusattach __P((struct device *, struct device *, void *)); 66 void grfbusscan __P((struct device *, void *)); 67 68 void grfattach __P((struct device *, struct device *, void *)); 69 int grfmatch __P((struct device *, void *, void *)); 70 int grfprint __P((void *, const char *)); 71 72 struct cfattach grfbus_ca = { 73 sizeof(struct device), grfbusmatch, grfbusattach 74 }; 75 76 struct cfdriver grfbus_cd = { 77 NULL, "grfbus", DV_DULL 78 }; 79 80 struct cfattach grf_ca = { 81 sizeof(struct grf_softc), grfmatch, grfattach 82 }; 83 84 struct cfdriver grf_cd = { 85 NULL, "grf", DV_DULL 86 }; 87 88 /* 89 * only used in console init. 90 */ 91 static struct cfdata *cfdata_gbus = NULL; 92 static struct cfdata *cfdata_grf = NULL; 93 94 int 95 grfbusmatch(pdp, match, auxp) 96 struct device *pdp; 97 void *match, *auxp; 98 { 99 struct cfdata *cfp = match; 100 101 if (strcmp(auxp, grfbus_cd.cd_name)) 102 return(0); 103 104 if((x68k_realconfig == 0) || (cfdata_gbus == NULL)) { 105 /* 106 * Probe layers we depend on 107 */ 108 if(x68k_realconfig == 0) { 109 cfdata_gbus = cfp; 110 } 111 } 112 return(1); /* Always there */ 113 } 114 115 void 116 grfbusattach(pdp, dp, auxp) 117 struct device *pdp, *dp; 118 void *auxp; 119 { 120 int i; 121 122 if (dp == NULL) { 123 i = 0; 124 x68k_config_found(cfdata_gbus, NULL, (void*)&i, grfbusprint); 125 } else { 126 printf("\n"); 127 config_scan(grfbusscan, dp); 128 } 129 } 130 131 void 132 grfbusscan(dp, auxp) 133 struct device *dp; 134 void *auxp; 135 { 136 int i = 0; 137 config_found(dp, (void*)&i, grfbusprint); 138 } 139 140 int 141 grfbusprint(auxp, name) 142 void *auxp; 143 const char *name; 144 { 145 if(name == NULL) 146 return(UNCONF); 147 return(QUIET); 148 } 149 150 static struct grf_softc congrf; 151 /* 152 * XXX called from ite console init routine. 153 * Does just what configure will do later but without printing anything. 154 */ 155 void 156 grfconfig(dp) 157 struct device *dp; 158 { 159 int unit; 160 if (!dp) 161 dp = (void *)&congrf; 162 unit = dp->dv_unit; 163 164 grfinit(dp, unit); /* XXX */ 165 } 166 167 /* 168 * Normal init routine called by configure() code 169 */ 170 int 171 grfmatch(parent, match, aux) 172 struct device *parent; 173 void *match, *aux; 174 { 175 struct cfdata *cfp = match; 176 177 /* XXX console at grf0 */ 178 if (x68k_realconfig == 0) { 179 if (cfp->cf_unit != 0) 180 return(0); 181 cfdata_grf = cfp; 182 } 183 return(1); 184 } 185 186 void 187 grfattach(parent, dp, aux) 188 struct device *parent; 189 struct device *dp; 190 void *aux; 191 { 192 /* static struct grf_softc congrf;*/ 193 struct grf_softc *gp; 194 195 grfconfig(dp); 196 /* 197 * Handle exeption case: early console init 198 */ 199 if(dp == NULL) { 200 /* Attach console ite */ 201 x68k_config_found(cfdata_grf, NULL, &congrf, grfprint); 202 return; 203 } 204 gp = (struct grf_softc *)dp; 205 printf(": %d x %d ", gp->g_display.gd_dwidth, 206 gp->g_display.gd_dheight); 207 if (gp->g_display.gd_colors == 2) 208 printf("monochrome"); 209 else 210 printf("%d colors", gp->g_display.gd_colors); 211 printf(" %s display\n", gp->g_sw->gd_desc); 212 213 /* 214 * try and attach an ite 215 */ 216 config_found(dp, gp, grfprint); 217 } 218 219 int 220 grfprint(auxp, pnp) 221 void *auxp; 222 const char *pnp; 223 { 224 if(pnp) 225 printf("ite at %s", pnp); 226 return(UNCONF); 227 } 228 229 int 230 grfinit(dp, unit) 231 void *dp; 232 int unit; 233 { 234 struct grf_softc *gp = dp; 235 register struct grfsw *gsw; 236 caddr_t addr = (void *)(unit < 1 ? IODEVbase->tvram : IODEVbase->gvram); 237 238 gsw = &grfsw[unit]; 239 if (gsw < &grfsw[ngrfsw] && (*gsw->gd_init)(gp, addr)) { 240 gp->g_sw = gsw; 241 gp->g_display.gd_id = gsw->gd_swid; 242 gp->g_flags = GF_ALIVE; 243 return(1); 244 } 245 return(0); 246 } 247