cgsix_obio.c revision 1.2
1 /* $NetBSD: cgsix_obio.c,v 1.2 1999/03/25 00:41:47 mrg 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 <sys/param.h> 44 #include <sys/systm.h> 45 #include <sys/buf.h> 46 #include <sys/device.h> 47 #include <machine/fbio.h> 48 #include <sys/ioctl.h> 49 #include <sys/malloc.h> 50 #include <sys/mman.h> 51 #include <sys/tty.h> 52 #include <sys/conf.h> 53 54 #ifdef DEBUG 55 #include <sys/proc.h> 56 #include <sys/syslog.h> 57 #endif 58 59 #include <vm/vm.h> 60 61 #include <machine/bus.h> 62 #include <machine/autoconf.h> 63 #include <machine/pmap.h> 64 #include <machine/fbvar.h> 65 #include <machine/cpu.h> 66 #include <machine/eeprom.h> 67 #include <machine/conf.h> 68 69 #include <sparc/dev/btreg.h> 70 #include <sparc/dev/btvar.h> 71 #include <sparc/dev/sbusvar.h> 72 #include <sparc/dev/cgsixreg.h> 73 #include <sparc/dev/cgsixvar.h> 74 #include <sparc/dev/pfourreg.h> 75 76 /* autoconfiguration driver */ 77 static int cgsixmatch __P((struct device *, struct cfdata *, void *)); 78 static void cgsixattach __P((struct device *, struct device *, void *)); 79 static int cg6_pfour_probe __P((void *, void *)); 80 81 struct cfattach cgsix_obio_ca = { 82 sizeof(struct cgsix_softc), cgsixmatch, cgsixattach 83 }; 84 85 /* 86 * Match a cgsix. 87 */ 88 int 89 cgsixmatch(parent, cf, aux) 90 struct device *parent; 91 struct cfdata *cf; 92 void *aux; 93 { 94 union obio_attach_args *uoba = aux; 95 struct obio4_attach_args *oba; 96 97 if (uoba->uoba_isobio4 == 0) 98 return (0); 99 100 oba = &uoba->uoba_oba4; 101 return (bus_space_probe(oba->oba_bustag, 0, 102 oba->oba_paddr + CGSIX_FHC_OFFSET, 103 4, /* probe size */ 104 0, /* offset */ 105 0, /* flags */ 106 cg6_pfour_probe, NULL)); 107 } 108 109 int 110 cg6_pfour_probe(vaddr, arg) 111 void *vaddr; 112 void *arg; 113 { 114 115 return (fb_pfour_id(vaddr) == PFOUR_ID_FASTCOLOR); 116 } 117 118 119 /* 120 * Attach a display. 121 */ 122 void 123 cgsixattach(parent, self, aux) 124 struct device *parent, *self; 125 void *aux; 126 { 127 struct cgsix_softc *sc = (struct cgsix_softc *)self; 128 union obio_attach_args *uoba = aux; 129 struct obio4_attach_args *oba; 130 struct eeprom *eep = (struct eeprom *)eeprom_va; 131 struct fbdevice *fb = &sc->sc_fb; 132 bus_space_handle_t bh; 133 int constype, isconsole; 134 char *name; 135 extern struct tty *fbconstty; 136 137 if (uoba->uoba_isobio4 == 0) { 138 (*cgsix_sbus_ca.ca_attach)(parent, self, aux); 139 return; 140 } 141 142 oba = &uoba->uoba_oba4; 143 144 /* Remember cookies for cgsix_mmap() */ 145 sc->sc_bustag = oba->oba_bustag; 146 sc->sc_btype = (bus_type_t)0; 147 sc->sc_paddr = (bus_addr_t)oba->oba_paddr; 148 149 fb->fb_device = &sc->sc_dev; 150 fb->fb_type.fb_type = FBTYPE_SUNFAST_COLOR; 151 fb->fb_flags = sc->sc_dev.dv_cfdata->cf_flags & FB_USERMASK; 152 fb->fb_type.fb_depth = 8; 153 154 fb_setsize_eeprom(fb, fb->fb_type.fb_depth, 1152, 900); 155 156 /* 157 * Dunno what the PROM has mapped, though obviously it must have 158 * the video RAM mapped. Just map what we care about for ourselves 159 * (the FHC, THC, and Brooktree registers). 160 */ 161 if (bus_space_map2(oba->oba_bustag, 0, 162 oba->oba_paddr + CGSIX_BT_OFFSET, 163 sizeof(*sc->sc_bt), 164 BUS_SPACE_MAP_LINEAR, 165 0, &bh) != 0) { 166 printf("%s: cannot map brooktree registers\n", self->dv_xname); 167 return; 168 } 169 sc->sc_bt = (struct bt_regs *)bh; 170 171 if (bus_space_map2(oba->oba_bustag, 0, 172 oba->oba_paddr + CGSIX_FHC_OFFSET, 173 sizeof(*sc->sc_fhc), 174 BUS_SPACE_MAP_LINEAR, 175 0, &bh) != 0) { 176 printf("%s: cannot map FHC registers\n", self->dv_xname); 177 return; 178 } 179 sc->sc_fhc = (int *)bh; 180 181 if (bus_space_map2(oba->oba_bustag, 0, 182 oba->oba_paddr + CGSIX_THC_OFFSET, 183 sizeof(*sc->sc_thc), 184 BUS_SPACE_MAP_LINEAR, 185 0, &bh) != 0) { 186 printf("%s: cannot map THC registers\n", self->dv_xname); 187 return; 188 } 189 sc->sc_thc = (struct cg6_thc *)bh; 190 191 if (bus_space_map2(oba->oba_bustag, 0, 192 oba->oba_paddr + CGSIX_TEC_OFFSET, 193 sizeof(*sc->sc_tec), 194 BUS_SPACE_MAP_LINEAR, 195 0, &bh) != 0) { 196 printf("%s: cannot map TEC registers\n", self->dv_xname); 197 return; 198 } 199 sc->sc_tec = (struct cg6_tec_xxx *)bh; 200 201 202 if (fb_pfour_id((void *)sc->sc_fhc) == PFOUR_ID_FASTCOLOR) { 203 fb->fb_flags |= FB_PFOUR; 204 name = "cgsix/p4"; 205 } else 206 name = "cgsix"; 207 208 constype = (fb->fb_flags & FB_PFOUR) ? EE_CONS_P4OPT : EE_CONS_COLOR; 209 210 /* 211 * Assume this is the console if there's no eeprom info 212 * to be found. 213 */ 214 if (eep == NULL || eep->eeConsole == constype) 215 isconsole = (fbconstty != NULL); 216 else 217 isconsole = 0; 218 219 if (isconsole && cgsix_use_rasterconsole) { 220 int ramsize = fb->fb_type.fb_height * fb->fb_linebytes; 221 if (bus_space_map2(oba->oba_bustag, 0, 222 oba->oba_paddr + CGSIX_RAM_OFFSET, 223 ramsize, 224 BUS_SPACE_MAP_LINEAR, 225 0, &bh) != 0) { 226 printf("%s: cannot map pixels\n", self->dv_xname); 227 return; 228 } 229 sc->sc_fb.fb_pixels = (caddr_t)bh; 230 } 231 232 cg6attach(sc, name, isconsole, 1); 233 } 234
Indexes created Wed Oct 15 16:09:53 GMT 2025