grf_obio.c revision 1.41
1 /* $NetBSD: grf_obio.c,v 1.41 1999/01/06 07:08:19 scottr Exp $ */ 2 3 /* 4 * Copyright (C) 1998 Scott Reynolds 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. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 /* 30 * Copyright (c) 1995 Allen Briggs. All rights reserved. 31 * 32 * Redistribution and use in source and binary forms, with or without 33 * modification, are permitted provided that the following conditions 34 * are met: 35 * 1. Redistributions of source code must retain the above copyright 36 * notice, this list of conditions and the following disclaimer. 37 * 2. Redistributions in binary form must reproduce the above copyright 38 * notice, this list of conditions and the following disclaimer in the 39 * documentation and/or other materials provided with the distribution. 40 * 3. All advertising materials mentioning features or use of this software 41 * must display the following acknowledgement: 42 * This product includes software developed by Allen Briggs. 43 * 4. The name of the author may not be used to endorse or promote products 44 * derived from this software without specific prior written permission. 45 * 46 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 47 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 48 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 49 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 50 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 51 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 52 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 53 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 54 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 55 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 56 */ 57 /* 58 * Graphics display driver for the Macintosh internal video for machines 59 * that don't map it into a fake nubus card. 60 */ 61 62 #include "opt_grf.h" 63 64 #include <sys/param.h> 65 #include <sys/device.h> 66 #include <sys/ioctl.h> 67 #include <sys/file.h> 68 #include <sys/malloc.h> 69 #include <sys/mman.h> 70 #include <sys/proc.h> 71 #include <sys/systm.h> 72 73 #include <machine/autoconf.h> 74 #include <machine/bus.h> 75 #include <machine/cpu.h> 76 #include <machine/grfioctl.h> 77 #include <machine/viareg.h> 78 79 #include <mac68k/nubus/nubus.h> 80 #include <mac68k/obio/obiovar.h> 81 #include <mac68k/dev/grfvar.h> 82 83 extern u_int32_t mac68k_vidphys; 84 extern u_int32_t mac68k_vidlen; 85 extern long videoaddr; 86 extern long videorowbytes; 87 extern long videobitdepth; 88 extern u_long videosize; 89 90 static int grfiv_mode __P((struct grf_softc *gp, int cmd, void *arg)); 91 static int grfiv_match __P((struct device *, struct cfdata *, void *)); 92 static void grfiv_attach __P((struct device *, struct device *, void *)); 93 94 struct cfattach intvid_ca = { 95 sizeof(struct grfbus_softc), grfiv_match, grfiv_attach 96 }; 97 98 #define DAFB_BASE 0xf9000000 99 #define DAFB_CONTROL_BASE 0xf9800000 100 #define CIVIC_BASE 0x50100000 101 #define CIVIC_CONTROL_BASE 0x50036000 102 #define VALKYRIE_BASE 0xf9000000 103 #define VALKYRIE_CONTROL_BASE 0x50f2a000 104 105 static int 106 grfiv_match(parent, cf, aux) 107 struct device *parent; 108 struct cfdata *cf; 109 void *aux; 110 { 111 struct obio_attach_args *oa = (struct obio_attach_args *)aux; 112 bus_space_handle_t bsh; 113 int found; 114 u_int base; 115 116 found = 1; 117 118 switch (current_mac_model->class) { 119 case MACH_CLASSQ2: 120 if (current_mac_model->machineid != MACH_MACLC575) { 121 base = VALKYRIE_CONTROL_BASE; 122 123 if (bus_space_map(oa->oa_tag, base, 0x40, 0, &bsh)) 124 return 0; 125 126 /* Disable interrupts */ 127 bus_space_write_1(oa->oa_tag, bsh, 0x18, 0x1); 128 break; 129 } 130 /* 131 * Note: the only system in this class that does not have 132 * the Valkyrie chip -- at least, that we know of -- is 133 * the Performa/LC 57x series. This system has a version 134 * of the DAFB controller, instead. 135 * 136 * If this assumption proves false, we'll have to be more 137 * intelligent here. 138 */ 139 /*FALLTHROUGH*/ 140 case MACH_CLASSQ: 141 /* 142 * Assume DAFB for all of these, unless we can't 143 * access the memory. 144 */ 145 base = DAFB_CONTROL_BASE; 146 147 if (bus_space_map(oa->oa_tag, base, 0x1000, 0, &bsh)) 148 return 0; 149 150 if (mac68k_bus_space_probe(oa->oa_tag, bsh, 0x1c, 4) == 0) { 151 bus_space_unmap(oa->oa_tag, bsh, 0x1000); 152 return 0; 153 } 154 155 /* Set "Turbo SCSI" configuration to default */ 156 bus_space_write_4(oa->oa_tag, bsh, 0x24, 0x1d1); /* ch0 */ 157 bus_space_write_4(oa->oa_tag, bsh, 0x28, 0x1d1); /* ch1 */ 158 159 /* Disable interrupts */ 160 bus_space_write_4(oa->oa_tag, bsh, 0x104, 0); 161 162 /* Clear any interrupts */ 163 bus_space_write_4(oa->oa_tag, bsh, 0x10C, 0); 164 bus_space_write_4(oa->oa_tag, bsh, 0x110, 0); 165 bus_space_write_4(oa->oa_tag, bsh, 0x114, 0); 166 167 bus_space_unmap(oa->oa_tag, bsh, 0x1000); 168 break; 169 case MACH_CLASSAV: 170 base = CIVIC_CONTROL_BASE; 171 172 if (bus_space_map(oa->oa_tag, base, 0x1000, 0, &bsh)) 173 return 0; 174 175 /* Disable interrupts */ 176 bus_space_write_1(oa->oa_tag, bsh, 0x120, 0); 177 178 bus_space_unmap(oa->oa_tag, bsh, 0x1000); 179 break; 180 case MACH_CLASSIIci: 181 case MACH_CLASSIIsi: 182 if (mac68k_vidlen == 0 || 183 (via2_reg(rMonitor) & RBVMonitorMask) == RBVMonIDNone) 184 found = 0; 185 break; 186 default: 187 if (mac68k_vidlen == 0) 188 found = 0; 189 break; 190 } 191 192 return found; 193 } 194 195 static void 196 grfiv_attach(parent, self, aux) 197 struct device *parent, *self; 198 void *aux; 199 { 200 struct obio_attach_args *oa = (struct obio_attach_args *)aux; 201 struct grfbus_softc *sc; 202 struct grfmode *gm; 203 u_long base, length; 204 u_int32_t vbase1, vbase2; 205 206 sc = (struct grfbus_softc *)self; 207 208 sc->card_id = 0; 209 210 switch (current_mac_model->class) { 211 case MACH_CLASSQ2: 212 if (current_mac_model->machineid != MACH_MACLC575) { 213 sc->sc_basepa = VALKYRIE_BASE; 214 length = 0x00100000; /* 1MB */ 215 216 if (sc->sc_basepa <= mac68k_vidphys && 217 mac68k_vidphys < (sc->sc_basepa + length)) 218 sc->sc_fbofs = mac68k_vidphys - sc->sc_basepa; 219 else 220 sc->sc_fbofs = 0; 221 222 printf(" @ %lx: Valkyrie video subsystem\n", 223 sc->sc_basepa + sc->sc_fbofs); 224 break; 225 } 226 /* See note in grfiv_match() */ 227 /*FALLTHROUGH*/ 228 case MACH_CLASSQ: 229 base = DAFB_CONTROL_BASE; 230 sc->sc_tag = oa->oa_tag; 231 if (bus_space_map(sc->sc_tag, base, 0x1000, 0, &sc->sc_regh)) { 232 printf(": failed to map DAFB register space\n"); 233 return; 234 } 235 236 sc->sc_basepa = DAFB_BASE; 237 length = 0x00100000; /* 1MB */ 238 239 /* Compute the current frame buffer offset */ 240 vbase1 = bus_space_read_4(sc->sc_tag, sc->sc_regh, 0x0) & 0xfff; 241 vbase2 = bus_space_read_4(sc->sc_tag, sc->sc_regh, 0x4) & 0xf; 242 sc->sc_fbofs = (vbase1 << 9) | (vbase2 << 5); 243 244 #if 1 245 /* 246 * XXX The following hack exists because the DAFB v7 in these 247 * systems doesn't compute fbofs correctly. (sar 19980813) 248 */ 249 switch (current_mac_model->machineid) { 250 case MACH_MACLC475: 251 case MACH_MACLC475_33: 252 case MACH_MACLC575: 253 sc->sc_fbofs = 0x1000; 254 break; 255 } 256 #endif 257 258 printf(" @ %lx: DAFB video subsystem, monitor sense %x\n", 259 sc->sc_basepa + sc->sc_fbofs, 260 (bus_space_read_4(sc->sc_tag, sc->sc_regh, 0x1c) & 0x7)); 261 262 bus_space_unmap(sc->sc_tag, sc->sc_regh, 0x1000); 263 break; 264 case MACH_CLASSAV: 265 sc->sc_basepa = CIVIC_BASE; 266 length = 0x00200000; /* 2MB */ 267 268 if (sc->sc_basepa <= mac68k_vidphys && 269 mac68k_vidphys < (sc->sc_basepa + length)) 270 sc->sc_fbofs = mac68k_vidphys - sc->sc_basepa; 271 else 272 sc->sc_fbofs = 0; 273 274 printf(" @ %lx: Civic video subsystem\n", 275 sc->sc_basepa + sc->sc_fbofs); 276 break; 277 case MACH_CLASSIIci: 278 case MACH_CLASSIIsi: 279 sc->sc_basepa = m68k_trunc_page(mac68k_vidphys); 280 sc->sc_fbofs = mac68k_vidphys & PGOFSET; 281 length = mac68k_vidlen + sc->sc_fbofs; 282 283 printf(" @ %lx: RBV video subsystem, ", 284 sc->sc_basepa + sc->sc_fbofs); 285 switch (via2_reg(rMonitor) & RBVMonitorMask) { 286 case RBVMonIDBWP: 287 printf("15\" monochrome portrait"); 288 break; 289 case RBVMonIDRGB12: 290 printf("12\" color"); 291 break; 292 case RBVMonIDRGB15: 293 printf("15\" color"); 294 break; 295 case RBVMonIDStd: 296 printf("Macintosh II"); 297 break; 298 default: 299 printf("unrecognized"); 300 break; 301 } 302 printf(" display\n"); 303 304 break; 305 default: 306 sc->sc_basepa = m68k_trunc_page(mac68k_vidphys); 307 sc->sc_fbofs = mac68k_vidphys & PGOFSET; 308 length = mac68k_vidlen + sc->sc_fbofs; 309 310 printf(" @ %lx: On-board video\n", 311 sc->sc_basepa + sc->sc_fbofs); 312 break; 313 } 314 315 if (bus_space_map(sc->sc_tag, sc->sc_basepa, length, 0, 316 &sc->sc_handle)) { 317 printf("%s: failed to map video RAM\n", sc->sc_dev.dv_xname); 318 return; 319 } 320 321 if (sc->sc_basepa <= mac68k_vidphys && 322 mac68k_vidphys < (sc->sc_basepa + length)) 323 videoaddr = sc->sc_handle + sc->sc_fbofs; /* XXX big ol' hack */ 324 325 gm = &(sc->curr_mode); 326 gm->mode_id = 0; 327 gm->psize = videobitdepth; 328 gm->ptype = 0; 329 gm->width = videosize & 0xffff; 330 gm->height = (videosize >> 16) & 0xffff; 331 gm->rowbytes = videorowbytes; 332 gm->hres = 80; /* XXX hack */ 333 gm->vres = 80; /* XXX hack */ 334 gm->fbsize = gm->height * gm->rowbytes; 335 gm->fbbase = (caddr_t)sc->sc_handle; /* XXX yet another hack */ 336 gm->fboff = sc->sc_fbofs; 337 338 /* Perform common video attachment. */ 339 grf_establish(sc, NULL, grfiv_mode); 340 } 341 342 static int 343 grfiv_mode(sc, cmd, arg) 344 struct grf_softc *sc; 345 int cmd; 346 void *arg; 347 { 348 switch (cmd) { 349 case GM_GRFON: 350 case GM_GRFOFF: 351 return 0; 352 case GM_CURRMODE: 353 break; 354 case GM_NEWMODE: 355 break; 356 case GM_LISTMODES: 357 break; 358 } 359 return EINVAL; 360 } 361
Indexes created Tue Oct 21 12:09:54 GMT 2025