grf_obio.c revision 1.51
1 /* $NetBSD: grf_obio.c,v 1.51 2005/01/15 16:01:00 chs 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 <sys/cdefs.h> 63 __KERNEL_RCSID(0, "$NetBSD: grf_obio.c,v 1.51 2005/01/15 16:01:00 chs Exp $"); 64 65 #include <sys/param.h> 66 #include <sys/device.h> 67 #include <sys/ioctl.h> 68 #include <sys/file.h> 69 #include <sys/malloc.h> 70 #include <sys/mman.h> 71 #include <sys/proc.h> 72 #include <sys/systm.h> 73 74 #include <machine/autoconf.h> 75 #include <machine/bus.h> 76 #include <machine/cpu.h> 77 #include <machine/grfioctl.h> 78 #include <machine/viareg.h> 79 80 #include <mac68k/nubus/nubus.h> 81 #include <mac68k/obio/obiovar.h> 82 #include <mac68k/dev/grfvar.h> 83 84 extern u_int32_t mac68k_vidphys; 85 extern u_int32_t mac68k_vidlen; 86 extern long videoaddr; 87 extern long videorowbytes; 88 extern long videobitdepth; 89 extern u_long videosize; 90 91 static int grfiv_mode(struct grf_softc *, int, void *); 92 static int grfiv_match(struct device *, struct cfdata *, void *); 93 static void grfiv_attach(struct device *, struct device *, void *); 94 95 CFATTACH_DECL(intvid, sizeof(struct grfbus_softc), 96 grfiv_match, grfiv_attach, NULL, NULL); 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(struct device *parent, struct cfdata *cf, void *aux) 107 { 108 struct obio_attach_args *oa = (struct obio_attach_args *)aux; 109 bus_space_handle_t bsh; 110 int found; 111 u_int base; 112 113 found = 1; 114 115 switch (current_mac_model->class) { 116 case MACH_CLASSQ2: 117 if (current_mac_model->machineid != MACH_MACLC575) { 118 base = VALKYRIE_CONTROL_BASE; 119 120 if (bus_space_map(oa->oa_tag, base, 0x40, 0, &bsh)) 121 return 0; 122 123 /* Disable interrupts */ 124 bus_space_write_1(oa->oa_tag, bsh, 0x18, 0x1); 125 126 bus_space_unmap(oa->oa_tag, bsh, 0x40); 127 break; 128 } 129 /* 130 * Note: the only system in this class that does not have 131 * the Valkyrie chip -- at least, that we know of -- is 132 * the Performa/LC 57x series. This system has a version 133 * of the DAFB controller, instead. 134 * 135 * If this assumption proves false, we'll have to be more 136 * intelligent here. 137 */ 138 /*FALLTHROUGH*/ 139 case MACH_CLASSQ: 140 /* 141 * Assume DAFB for all of these, unless we can't 142 * access the memory. 143 */ 144 base = DAFB_CONTROL_BASE; 145 146 if (bus_space_map(oa->oa_tag, base, 0x20, 0, &bsh)) 147 return 0; 148 149 if (mac68k_bus_space_probe(oa->oa_tag, bsh, 0x1c, 4) == 0) { 150 bus_space_unmap(oa->oa_tag, bsh, 0x20); 151 return 0; 152 } 153 154 bus_space_unmap(oa->oa_tag, bsh, 0x20); 155 156 if (bus_space_map(oa->oa_tag, base + 0x100, 0x20, 0, &bsh)) 157 return 0; 158 159 if (mac68k_bus_space_probe(oa->oa_tag, bsh, 0x04, 4) == 0) { 160 bus_space_unmap(oa->oa_tag, bsh, 0x20); 161 return 0; 162 } 163 164 /* Disable interrupts */ 165 bus_space_write_4(oa->oa_tag, bsh, 0x04, 0); 166 167 /* Clear any interrupts */ 168 bus_space_write_4(oa->oa_tag, bsh, 0x0C, 0); 169 bus_space_write_4(oa->oa_tag, bsh, 0x10, 0); 170 bus_space_write_4(oa->oa_tag, bsh, 0x14, 0); 171 172 bus_space_unmap(oa->oa_tag, bsh, 0x20); 173 break; 174 case MACH_CLASSAV: 175 base = CIVIC_CONTROL_BASE; 176 177 if (bus_space_map(oa->oa_tag, base, 0x1000, 0, &bsh)) 178 return 0; 179 180 /* Disable interrupts */ 181 bus_space_write_1(oa->oa_tag, bsh, 0x120, 0); 182 183 bus_space_unmap(oa->oa_tag, bsh, 0x1000); 184 break; 185 case MACH_CLASSIIci: 186 case MACH_CLASSIIsi: 187 if (mac68k_vidlen == 0 || 188 (via2_reg(rMonitor) & RBVMonitorMask) == RBVMonIDNone) 189 found = 0; 190 break; 191 default: 192 if (mac68k_vidlen == 0) 193 found = 0; 194 break; 195 } 196 197 return found; 198 } 199 200 static void 201 grfiv_attach(struct device *parent, struct device *self, void *aux) 202 { 203 struct obio_attach_args *oa = (struct obio_attach_args *)aux; 204 struct grfbus_softc *sc; 205 struct grfmode *gm; 206 u_long base, length; 207 u_int32_t vbase1, vbase2; 208 209 sc = (struct grfbus_softc *)self; 210 211 sc->card_id = 0; 212 213 switch (current_mac_model->class) { 214 case MACH_CLASSQ2: 215 if (current_mac_model->machineid != MACH_MACLC575) { 216 sc->sc_basepa = VALKYRIE_BASE; 217 length = 0x00100000; /* 1MB */ 218 219 if (sc->sc_basepa <= mac68k_vidphys && 220 mac68k_vidphys < (sc->sc_basepa + length)) { 221 sc->sc_fbofs = mac68k_vidphys - sc->sc_basepa; 222 } else { 223 sc->sc_basepa = m68k_trunc_page(mac68k_vidphys); 224 sc->sc_fbofs = m68k_page_offset(mac68k_vidphys); 225 length = mac68k_vidlen + sc->sc_fbofs; 226 } 227 228 printf(" @ %lx: Valkyrie video subsystem\n", 229 sc->sc_basepa + sc->sc_fbofs); 230 break; 231 } 232 /* See note in grfiv_match() */ 233 /*FALLTHROUGH*/ 234 case MACH_CLASSQ: 235 base = DAFB_CONTROL_BASE; 236 sc->sc_tag = oa->oa_tag; 237 if (bus_space_map(sc->sc_tag, base, 0x20, 0, &sc->sc_regh)) { 238 printf(": failed to map DAFB register space\n"); 239 return; 240 } 241 242 sc->sc_basepa = DAFB_BASE; 243 length = 0x00100000; /* 1MB */ 244 245 /* Compute the current frame buffer offset */ 246 vbase1 = bus_space_read_4(sc->sc_tag, sc->sc_regh, 0x0) & 0xfff; 247 #if 1 248 /* 249 * XXX The following exists because the DAFB v7 in these 250 * systems doesn't return reasonable values to use for fbofs. 251 * Ken'ichi Ishizaka gets credit for this hack. (sar 19990426) 252 * (Does this get us the correct result for _all_ DAFB- 253 * equipped systems and monitor combinations? It seems 254 * possible, if not likely...) 255 */ 256 switch (current_mac_model->machineid) { 257 case MACH_MACLC475: 258 case MACH_MACLC475_33: 259 case MACH_MACLC575: 260 case MACH_MACQ605: 261 case MACH_MACQ605_33: 262 vbase1 &= 0x3f; 263 break; 264 } 265 #endif 266 vbase2 = bus_space_read_4(sc->sc_tag, sc->sc_regh, 0x4) & 0xf; 267 sc->sc_fbofs = (vbase1 << 9) | (vbase2 << 5); 268 269 printf(" @ %lx: DAFB video subsystem, monitor sense %x\n", 270 sc->sc_basepa + sc->sc_fbofs, 271 (bus_space_read_4(sc->sc_tag, sc->sc_regh, 0x1c) & 0x7)); 272 273 bus_space_unmap(sc->sc_tag, sc->sc_regh, 0x20); 274 break; 275 case MACH_CLASSAV: 276 sc->sc_basepa = CIVIC_BASE; 277 length = 0x00200000; /* 2MB */ 278 if (mac68k_vidphys >= sc->sc_basepa && 279 mac68k_vidphys < (sc->sc_basepa + length)) { 280 sc->sc_fbofs = mac68k_vidphys - sc->sc_basepa; 281 } else { 282 sc->sc_basepa = m68k_trunc_page(mac68k_vidphys); 283 sc->sc_fbofs = m68k_page_offset(mac68k_vidphys); 284 length = mac68k_vidlen + sc->sc_fbofs; 285 } 286 287 printf(" @ %lx: CIVIC video subsystem\n", 288 sc->sc_basepa + sc->sc_fbofs); 289 break; 290 case MACH_CLASSIIci: 291 case MACH_CLASSIIsi: 292 sc->sc_basepa = m68k_trunc_page(mac68k_vidphys); 293 sc->sc_fbofs = m68k_page_offset(mac68k_vidphys); 294 length = mac68k_vidlen + sc->sc_fbofs; 295 296 printf(" @ %lx: RBV video subsystem, ", 297 sc->sc_basepa + sc->sc_fbofs); 298 switch (via2_reg(rMonitor) & RBVMonitorMask) { 299 case RBVMonIDBWP: 300 printf("15\" monochrome portrait"); 301 break; 302 case RBVMonIDRGB12: 303 printf("12\" color"); 304 break; 305 case RBVMonIDRGB15: 306 printf("15\" color"); 307 break; 308 case RBVMonIDStd: 309 printf("Macintosh II"); 310 break; 311 default: 312 printf("unrecognized"); 313 break; 314 } 315 printf(" display\n"); 316 317 break; 318 default: 319 sc->sc_basepa = m68k_trunc_page(mac68k_vidphys); 320 sc->sc_fbofs = m68k_page_offset(mac68k_vidphys); 321 length = mac68k_vidlen + sc->sc_fbofs; 322 323 printf(" @ %lx: On-board video\n", 324 sc->sc_basepa + sc->sc_fbofs); 325 break; 326 } 327 328 if (bus_space_map(sc->sc_tag, sc->sc_basepa, length, 0, 329 &sc->sc_handle)) { 330 printf("%s: failed to map video RAM\n", sc->sc_dev.dv_xname); 331 return; 332 } 333 334 if (sc->sc_basepa <= mac68k_vidphys && 335 mac68k_vidphys < (sc->sc_basepa + length)) 336 videoaddr = sc->sc_handle.base + sc->sc_fbofs; /* XXX hack */ 337 338 gm = &(sc->curr_mode); 339 gm->mode_id = 0; 340 gm->psize = videobitdepth; 341 gm->ptype = 0; 342 gm->width = videosize & 0xffff; 343 gm->height = (videosize >> 16) & 0xffff; 344 gm->rowbytes = videorowbytes; 345 gm->hres = 80; /* XXX hack */ 346 gm->vres = 80; /* XXX hack */ 347 gm->fbsize = gm->height * gm->rowbytes; 348 gm->fbbase = (caddr_t)sc->sc_handle.base; /* XXX yet another hack */ 349 gm->fboff = sc->sc_fbofs; 350 351 /* Perform common video attachment. */ 352 grf_establish(sc, NULL, grfiv_mode); 353 } 354 355 static int 356 grfiv_mode(struct grf_softc *sc, int cmd, void *arg) 357 { 358 switch (cmd) { 359 case GM_GRFON: 360 case GM_GRFOFF: 361 return 0; 362 case GM_CURRMODE: 363 break; 364 case GM_NEWMODE: 365 break; 366 case GM_LISTMODES: 367 break; 368 } 369 return EINVAL; 370 } 371
Indexes created Tue Oct 21 19:09:51 GMT 2025