cgsix_obio.c revision 1.6
1 /* $NetBSD: cgsix_obio.c,v 1.6 2000/06/29 07:40:06 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 <machine/bus.h> 60 #include <machine/autoconf.h> 61 #include <machine/fbvar.h> 62 #include <machine/cpu.h> 63 #include <machine/eeprom.h> 64 #include <machine/conf.h> 65 66 #include <sparc/dev/btreg.h> 67 #include <sparc/dev/btvar.h> 68 #include <sparc/dev/sbusvar.h> 69 #include <sparc/dev/cgsixreg.h> 70 #include <sparc/dev/cgsixvar.h> 71 #include <sparc/dev/pfourreg.h> 72 73 /* autoconfiguration driver */ 74 static int cgsixmatch __P((struct device *, struct cfdata *, void *)); 75 static void cgsixattach __P((struct device *, struct device *, void *)); 76 static int cg6_pfour_probe __P((void *, void *)); 77 78 struct cfattach cgsix_obio_ca = { 79 sizeof(struct cgsix_softc), cgsixmatch, cgsixattach 80 }; 81 82 /* 83 * Match a cgsix. 84 */ 85 static int 86 cgsixmatch(parent, cf, aux) 87 struct device *parent; 88 struct cfdata *cf; 89 void *aux; 90 { 91 union obio_attach_args *uoba = aux; 92 struct obio4_attach_args *oba; 93 94 if (uoba->uoba_isobio4 == 0) 95 return (0); 96 97 oba = &uoba->uoba_oba4; 98 return (bus_space_probe(oba->oba_bustag, 0, 99 oba->oba_paddr + CGSIX_FHC_OFFSET, 100 4, /* probe size */ 101 0, /* offset */ 102 0, /* flags */ 103 cg6_pfour_probe, NULL)); 104 } 105 106 static int 107 cg6_pfour_probe(vaddr, arg) 108 void *vaddr; 109 void *arg; 110 { 111 112 return (fb_pfour_id(vaddr) == PFOUR_ID_FASTCOLOR); 113 } 114 115 116 /* 117 * Attach a display. 118 */ 119 static void 120 cgsixattach(parent, self, aux) 121 struct device *parent, *self; 122 void *aux; 123 { 124 struct cgsix_softc *sc = (struct cgsix_softc *)self; 125 union obio_attach_args *uoba = aux; 126 struct obio4_attach_args *oba; 127 struct eeprom *eep = (struct eeprom *)eeprom_va; 128 struct fbdevice *fb = &sc->sc_fb; 129 bus_space_handle_t bh; 130 int constype, isconsole; 131 char *name; 132 133 oba = &uoba->uoba_oba4; 134 135 /* Remember cookies for cgsix_mmap() */ 136 sc->sc_bustag = oba->oba_bustag; 137 sc->sc_btype = (bus_type_t)0; 138 sc->sc_paddr = (bus_addr_t)oba->oba_paddr; 139 140 fb->fb_device = &sc->sc_dev; 141 fb->fb_type.fb_type = FBTYPE_SUNFAST_COLOR; 142 fb->fb_flags = sc->sc_dev.dv_cfdata->cf_flags & FB_USERMASK; 143 fb->fb_type.fb_depth = 8; 144 145 fb_setsize_eeprom(fb, fb->fb_type.fb_depth, 1152, 900); 146 147 /* 148 * Dunno what the PROM has mapped, though obviously it must have 149 * the video RAM mapped. Just map what we care about for ourselves 150 * (the FHC, THC, and Brooktree registers). 151 */ 152 if (bus_space_map2(oba->oba_bustag, 0, 153 oba->oba_paddr + CGSIX_BT_OFFSET, 154 sizeof(*sc->sc_bt), 155 BUS_SPACE_MAP_LINEAR, 156 0, &bh) != 0) { 157 printf("%s: cannot map brooktree registers\n", self->dv_xname); 158 return; 159 } 160 sc->sc_bt = (struct bt_regs *)bh; 161 162 if (bus_space_map2(oba->oba_bustag, 0, 163 oba->oba_paddr + CGSIX_FHC_OFFSET, 164 sizeof(*sc->sc_fhc), 165 BUS_SPACE_MAP_LINEAR, 166 0, &bh) != 0) { 167 printf("%s: cannot map FHC registers\n", self->dv_xname); 168 return; 169 } 170 sc->sc_fhc = (int *)bh; 171 172 if (bus_space_map2(oba->oba_bustag, 0, 173 oba->oba_paddr + CGSIX_THC_OFFSET, 174 sizeof(*sc->sc_thc), 175 BUS_SPACE_MAP_LINEAR, 176 0, &bh) != 0) { 177 printf("%s: cannot map THC registers\n", self->dv_xname); 178 return; 179 } 180 sc->sc_thc = (struct cg6_thc *)bh; 181 182 if (bus_space_map2(oba->oba_bustag, 0, 183 oba->oba_paddr + CGSIX_TEC_OFFSET, 184 sizeof(*sc->sc_tec), 185 BUS_SPACE_MAP_LINEAR, 186 0, &bh) != 0) { 187 printf("%s: cannot map TEC registers\n", self->dv_xname); 188 return; 189 } 190 sc->sc_tec = (struct cg6_tec_xxx *)bh; 191 192 if (bus_space_map2(oba->oba_bustag, 0, 193 oba->oba_paddr + CGSIX_FBC_OFFSET, 194 sizeof(*sc->sc_fbc), 195 BUS_SPACE_MAP_LINEAR, 196 0, &bh) != 0) { 197 printf("%s: cannot map FBC registers\n", self->dv_xname); 198 return; 199 } 200 sc->sc_fbc = (struct cg6_fbc *)bh; 201 202 203 if (fb_pfour_id((void *)sc->sc_fhc) == PFOUR_ID_FASTCOLOR) { 204 fb->fb_flags |= FB_PFOUR; 205 name = "cgsix/p4"; 206 } else 207 name = "cgsix"; 208 209 constype = (fb->fb_flags & FB_PFOUR) ? EE_CONS_P4OPT : EE_CONS_COLOR; 210 211 /* 212 * Assume this is the console if there's no eeprom info 213 * to be found. 214 */ 215 if (eep == NULL || eep->eeConsole == constype) 216 isconsole = fb_is_console(0); 217 else 218 isconsole = 0; 219 220 if (isconsole && cgsix_use_rasterconsole) { 221 int ramsize = fb->fb_type.fb_height * fb->fb_linebytes; 222 if (bus_space_map2(oba->oba_bustag, 0, 223 oba->oba_paddr + CGSIX_RAM_OFFSET, 224 ramsize, 225 BUS_SPACE_MAP_LINEAR, 226 0, &bh) != 0) { 227 printf("%s: cannot map pixels\n", self->dv_xname); 228 return; 229 } 230 sc->sc_fb.fb_pixels = (caddr_t)bh; 231 } 232 233 cg6attach(sc, name, isconsole); 234 } 235
Indexes created Mon Oct 20 08:09:54 GMT 2025