grf_obio.c revision 1.34
1 /* $NetBSD: grf_obio.c,v 1.34 1998/06/02 03:21:42 scottr Exp $ */ 2 3 /* 4 * Copyright (c) 1995 Allen Briggs. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Allen Briggs. 17 * 4. The name of the author may not be used to endorse or promote products 18 * derived from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 /* 32 * Graphics display driver for the Macintosh internal video for machines 33 * that don't map it into a fake nubus card. 34 */ 35 36 #include <sys/param.h> 37 38 #include <sys/device.h> 39 #include <sys/ioctl.h> 40 #include <sys/file.h> 41 #include <sys/malloc.h> 42 #include <sys/mman.h> 43 #include <sys/proc.h> 44 #include <sys/systm.h> 45 46 #include <machine/autoconf.h> 47 #include <machine/bus.h> 48 #include <machine/cpu.h> 49 #include <machine/grfioctl.h> 50 #include <machine/viareg.h> 51 52 #include <mac68k/nubus/nubus.h> 53 #include <mac68k/obio/obiovar.h> 54 #include <mac68k/dev/grfvar.h> 55 56 extern u_int32_t mac68k_vidlog; 57 extern u_int32_t mac68k_vidphys; 58 extern long videorowbytes; 59 extern long videobitdepth; 60 extern u_long videosize; 61 62 static int grfiv_mode __P((struct grf_softc *gp, int cmd, void *arg)); 63 static int grfiv_match __P((struct device *, struct cfdata *, void *)); 64 static void grfiv_attach __P((struct device *, struct device *, void *)); 65 66 struct cfattach intvid_ca = { 67 sizeof(struct grfbus_softc), grfiv_match, grfiv_attach 68 }; 69 70 #define QUADRA_DAFB_BASE 0xf9800000 71 #define CIVIC_CONTROL_BASE 0x50036000 72 #define VALKYRIE_CONTROL_BASE 0x50f2a000 73 74 static int 75 grfiv_match(parent, cf, aux) 76 struct device *parent; 77 struct cfdata *cf; 78 void *aux; 79 { 80 struct obio_attach_args *oa = (struct obio_attach_args *)aux; 81 bus_space_handle_t bsh; 82 int found; 83 u_int base; 84 85 found = 1; 86 87 switch (current_mac_model->class) { 88 case MACH_CLASSQ: 89 /* 90 * Assume DAFB for all of these, unless we can't 91 * access the memory. 92 */ 93 base = QUADRA_DAFB_BASE; 94 95 if (bus_space_map(oa->oa_tag, base, 0x1000, 0, &bsh)) { 96 panic("failed to map space for DAFB regs.\n"); 97 } 98 99 if (mac68k_bus_space_probe(oa->oa_tag, bsh, 0x1C, 4) == 0) { 100 bus_space_unmap(oa->oa_tag, bsh, 0x1000); 101 found = 0; 102 goto nodafb; 103 } 104 105 /* Set "Turbo SCSI" configuration to default */ 106 bus_space_write_4(oa->oa_tag, bsh, 0x24, 0x1d1); /* ch0 */ 107 bus_space_write_4(oa->oa_tag, bsh, 0x28, 0x1d1); /* ch1 */ 108 109 /* Disable interrupts */ 110 bus_space_write_4(oa->oa_tag, bsh, 0x104, 0); 111 112 /* Clear any interrupts */ 113 bus_space_write_4(oa->oa_tag, bsh, 0x10C, 0); 114 bus_space_write_4(oa->oa_tag, bsh, 0x110, 0); 115 bus_space_write_4(oa->oa_tag, bsh, 0x114, 0); 116 117 bus_space_unmap(oa->oa_tag, bsh, 0x1000); 118 break; 119 120 case MACH_CLASSAV: 121 base = CIVIC_CONTROL_BASE; 122 123 if (bus_space_map(oa->oa_tag, base, 0x1000, 0, &bsh)) { 124 panic("failed to map space for CIVIC control regs.\n"); 125 } 126 127 /* Disable interrupts */ 128 bus_space_write_1(oa->oa_tag, bsh, 0x120, 0); 129 130 bus_space_unmap(oa->oa_tag, bsh, 0x1000); 131 break; 132 133 case MACH_CLASSQ2: 134 if (current_mac_model->machineid == MACH_MACQ630) { 135 base = VALKYRIE_CONTROL_BASE; 136 137 if (bus_space_map(oa->oa_tag, base, 0x40, 0, &bsh)) { 138 panic("failed to map space for Valkyrie regs.\n"); 139 } 140 141 /* Disable interrupts */ 142 bus_space_write_1(oa->oa_tag, bsh, 0x18, 0x1); 143 } 144 break; 145 146 default: 147 nodafb: 148 if (mac68k_vidlog == 0) { 149 found = 0; 150 } 151 break; 152 } 153 154 return found; 155 } 156 157 #define R4(sc, o) (bus_space_read_4((sc)->sc_tag, (sc)->sc_regh, o) & 0xfff) 158 159 static void 160 grfiv_attach(parent, self, aux) 161 struct device *parent, *self; 162 void *aux; 163 { 164 struct obio_attach_args *oa = (struct obio_attach_args *)aux; 165 struct grfbus_softc *sc; 166 struct grfmode *gm; 167 u_int base; 168 169 sc = (struct grfbus_softc *)self; 170 171 sc->card_id = 0; 172 sc->sc_bufpa = (caddr_t)mac68k_vidphys; 173 174 switch (current_mac_model->class) { 175 case MACH_CLASSQ: 176 base = QUADRA_DAFB_BASE; 177 sc->sc_tag = oa->oa_tag; 178 if (bus_space_map(sc->sc_tag, base, 0x1000, 0, &sc->sc_regh)) { 179 panic("failed to map space for DAFB regs.\n"); 180 } 181 printf(": DAFB: Monitor sense %x.\n", R4(sc,0x1C)&7); 182 bus_space_unmap(sc->sc_tag, sc->sc_regh, 0x1000); 183 break; 184 case MACH_CLASSQ2: 185 case MACH_CLASSAV: 186 default: 187 printf(": Internal Video\n"); 188 break; 189 } 190 191 gm = &(sc->curr_mode); 192 gm->mode_id = 0; 193 gm->psize = videobitdepth; 194 gm->ptype = 0; 195 gm->width = videosize & 0xffff; 196 gm->height = (videosize >> 16) & 0xffff; 197 gm->rowbytes = videorowbytes; 198 gm->hres = 80; /* XXX Hack */ 199 gm->vres = 80; /* XXX Hack */ 200 gm->fbsize = gm->rowbytes * gm->height; 201 gm->fbbase = (caddr_t)m68k_trunc_page(mac68k_vidlog); 202 gm->fboff = mac68k_vidlog & PGOFSET; 203 204 /* Perform common video attachment. */ 205 grf_establish(sc, NULL, grfiv_mode); 206 } 207 208 static int 209 grfiv_mode(sc, cmd, arg) 210 struct grf_softc *sc; 211 int cmd; 212 void *arg; 213 { 214 switch (cmd) { 215 case GM_GRFON: 216 case GM_GRFOFF: 217 return 0; 218 case GM_CURRMODE: 219 break; 220 case GM_NEWMODE: 221 break; 222 case GM_LISTMODES: 223 break; 224 } 225 return EINVAL; 226 } 227
Indexes created Wed Oct 22 13:09:56 GMT 2025