cgsix_obio.c revision 1.1
1 /* $NetBSD: cgsix_obio.c,v 1.1 1998/03/31 21:05:04 pk Exp $ */ 2 3 /*- 4 * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Paul Kranenburg. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /* 40 * color display (cgsix) driver; sun4 obio bus front-end. 41 */ 42 43 #include "opt_uvm.h" 44 45 #include <sys/param.h> 46 #include <sys/systm.h> 47 #include <sys/buf.h> 48 #include <sys/device.h> 49 #include <machine/fbio.h> 50 #include <sys/ioctl.h> 51 #include <sys/malloc.h> 52 #include <sys/mman.h> 53 #include <sys/tty.h> 54 #include <sys/conf.h> 55 56 #ifdef DEBUG 57 #include <sys/proc.h> 58 #include <sys/syslog.h> 59 #endif 60 61 #include <vm/vm.h> 62 63 #include <machine/bus.h> 64 #include <machine/autoconf.h> 65 #include <machine/pmap.h> 66 #include <machine/fbvar.h> 67 #include <machine/cpu.h> 68 #include <machine/eeprom.h> 69 #include <machine/conf.h> 70 71 #include <sparc/dev/btreg.h> 72 #include <sparc/dev/btvar.h> 73 #include <sparc/dev/sbusvar.h> 74 #include <sparc/dev/cgsixreg.h> 75 #include <sparc/dev/cgsixvar.h> 76 #include <sparc/dev/pfourreg.h> 77 78 /* autoconfiguration driver */ 79 static int cgsixmatch __P((struct device *, struct cfdata *, void *)); 80 static void cgsixattach __P((struct device *, struct device *, void *)); 81 static int cg6_pfour_probe __P((void *, void *)); 82 83 struct cfattach cgsix_obio_ca = { 84 sizeof(struct cgsix_softc), cgsixmatch, cgsixattach 85 }; 86 87 /* 88 * Match a cgsix. 89 */ 90 int 91 cgsixmatch(parent, cf, aux) 92 struct device *parent; 93 struct cfdata *cf; 94 void *aux; 95 { 96 union obio_attach_args *uoba = aux; 97 struct obio4_attach_args *oba; 98 99 if (uoba->uoba_isobio4 == 0) 100 return (0); 101 102 oba = &uoba->uoba_oba4; 103 return (bus_space_probe(oba->oba_bustag, 0, 104 oba->oba_paddr + CGSIX_FHC_OFFSET, 105 4, /* probe size */ 106 0, /* offset */ 107 0, /* flags */ 108 cg6_pfour_probe, NULL)); 109 } 110 111 int 112 cg6_pfour_probe(vaddr, arg) 113 void *vaddr; 114 void *arg; 115 { 116 117 return (fb_pfour_id(vaddr) == PFOUR_ID_FASTCOLOR); 118 } 119 120 121 /* 122 * Attach a display. 123 */ 124 void 125 cgsixattach(parent, self, aux) 126 struct device *parent, *self; 127 void *aux; 128 { 129 struct cgsix_softc *sc = (struct cgsix_softc *)self; 130 union obio_attach_args *uoba = aux; 131 struct obio4_attach_args *oba; 132 struct eeprom *eep = (struct eeprom *)eeprom_va; 133 struct fbdevice *fb = &sc->sc_fb; 134 bus_space_handle_t bh; 135 int constype, isconsole; 136 char *name; 137 extern struct tty *fbconstty; 138 139 if (uoba->uoba_isobio4 == 0) { 140 (*cgsix_sbus_ca.ca_attach)(parent, self, aux); 141 return; 142 } 143 144 oba = &uoba->uoba_oba4; 145 146 /* Remember cookies for cgsix_mmap() */ 147 sc->sc_bustag = oba->oba_bustag; 148 sc->sc_btype = (bus_type_t)0; 149 sc->sc_paddr = (bus_addr_t)oba->oba_paddr; 150 151 fb->fb_device = &sc->sc_dev; 152 fb->fb_type.fb_type = FBTYPE_SUNFAST_COLOR; 153 fb->fb_flags = sc->sc_dev.dv_cfdata->cf_flags & FB_USERMASK; 154 fb->fb_type.fb_depth = 8; 155 156 fb_setsize_eeprom(fb, fb->fb_type.fb_depth, 1152, 900); 157 158 /* 159 * Dunno what the PROM has mapped, though obviously it must have 160 * the video RAM mapped. Just map what we care about for ourselves 161 * (the FHC, THC, and Brooktree registers). 162 */ 163 if (bus_space_map2(oba->oba_bustag, 0, 164 oba->oba_paddr + CGSIX_BT_OFFSET, 165 sizeof(*sc->sc_bt), 166 BUS_SPACE_MAP_LINEAR, 167 0, &bh) != 0) { 168 printf("%s: cannot map brooktree registers\n", self->dv_xname); 169 return; 170 } 171 sc->sc_bt = (struct bt_regs *)bh; 172 173 if (bus_space_map2(oba->oba_bustag, 0, 174 oba->oba_paddr + CGSIX_FHC_OFFSET, 175 sizeof(*sc->sc_fhc), 176 BUS_SPACE_MAP_LINEAR, 177 0, &bh) != 0) { 178 printf("%s: cannot map FHC registers\n", self->dv_xname); 179 return; 180 } 181 sc->sc_fhc = (int *)bh; 182 183 if (bus_space_map2(oba->oba_bustag, 0, 184 oba->oba_paddr + CGSIX_THC_OFFSET, 185 sizeof(*sc->sc_thc), 186 BUS_SPACE_MAP_LINEAR, 187 0, &bh) != 0) { 188 printf("%s: cannot map THC registers\n", self->dv_xname); 189 return; 190 } 191 sc->sc_thc = (struct cg6_thc *)bh; 192 193 if (bus_space_map2(oba->oba_bustag, 0, 194 oba->oba_paddr + CGSIX_TEC_OFFSET, 195 sizeof(*sc->sc_tec), 196 BUS_SPACE_MAP_LINEAR, 197 0, &bh) != 0) { 198 printf("%s: cannot map TEC registers\n", self->dv_xname); 199 return; 200 } 201 sc->sc_tec = (struct cg6_tec_xxx *)bh; 202 203 204 if (fb_pfour_id((void *)sc->sc_fhc) == PFOUR_ID_FASTCOLOR) { 205 fb->fb_flags |= FB_PFOUR; 206 name = "cgsix/p4"; 207 } else 208 name = "cgsix"; 209 210 constype = (fb->fb_flags & FB_PFOUR) ? EE_CONS_P4OPT : EE_CONS_COLOR; 211 212 /* 213 * Assume this is the console if there's no eeprom info 214 * to be found. 215 */ 216 if (eep == NULL || eep->eeConsole == constype) 217 isconsole = (fbconstty != NULL); 218 else 219 isconsole = 0; 220 221 if (isconsole && cgsix_use_rasterconsole) { 222 int ramsize = fb->fb_type.fb_height * fb->fb_linebytes; 223 if (bus_space_map2(oba->oba_bustag, 0, 224 oba->oba_paddr + CGSIX_RAM_OFFSET, 225 ramsize, 226 BUS_SPACE_MAP_LINEAR, 227 0, &bh) != 0) { 228 printf("%s: cannot map pixels\n", self->dv_xname); 229 return; 230 } 231 sc->sc_fb.fb_pixels = (caddr_t)bh; 232 } 233 234 cg6attach(sc, name, isconsole, 1); 235 } 236
Indexes created Wed Sep 24 22:09:59 GMT 2025