cgsix_obio.c revision 1.13
1 /* $NetBSD: cgsix_obio.c,v 1.13 2002/10/02 16:02:13 thorpej 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 <sys/ioctl.h> 48 #include <sys/malloc.h> 49 #include <sys/mman.h> 50 #include <sys/tty.h> 51 #include <sys/conf.h> 52 53 #ifdef DEBUG 54 #include <sys/proc.h> 55 #include <sys/syslog.h> 56 #endif 57 58 #include <machine/bus.h> 59 #include <machine/autoconf.h> 60 #include <machine/eeprom.h> 61 62 #include <dev/sun/fbio.h> 63 #include <dev/sun/fbvar.h> 64 #include <dev/sun/btreg.h> 65 #include <dev/sun/btvar.h> 66 #include <dev/sun/cgsixreg.h> 67 #include <dev/sun/cgsixvar.h> 68 #include <dev/sun/pfourreg.h> 69 70 /* autoconfiguration driver */ 71 static int cgsixmatch __P((struct device *, struct cfdata *, void *)); 72 static void cgsixattach __P((struct device *, struct device *, void *)); 73 static int cg6_pfour_probe __P((void *, void *)); 74 75 CFATTACH_DECL(cgsix_obio, sizeof(struct cgsix_softc), 76 cgsixmatch, cgsixattach, NULL, NULL); 77 78 /* 79 * Match a cgsix. 80 */ 81 static int 82 cgsixmatch(parent, cf, aux) 83 struct device *parent; 84 struct cfdata *cf; 85 void *aux; 86 { 87 union obio_attach_args *uoba = aux; 88 struct obio4_attach_args *oba; 89 90 if (uoba->uoba_isobio4 == 0) 91 return (0); 92 93 oba = &uoba->uoba_oba4; 94 return (bus_space_probe(oba->oba_bustag, 95 oba->oba_paddr + CGSIX_FHC_OFFSET, 96 4, /* probe size */ 97 0, /* offset */ 98 0, /* flags */ 99 cg6_pfour_probe, NULL)); 100 } 101 102 static int 103 cg6_pfour_probe(vaddr, arg) 104 void *vaddr; 105 void *arg; 106 { 107 108 return (fb_pfour_id(vaddr) == PFOUR_ID_FASTCOLOR); 109 } 110 111 112 /* 113 * Attach a display. 114 */ 115 static void 116 cgsixattach(parent, self, aux) 117 struct device *parent, *self; 118 void *aux; 119 { 120 struct cgsix_softc *sc = (struct cgsix_softc *)self; 121 union obio_attach_args *uoba = aux; 122 struct obio4_attach_args *oba; 123 struct eeprom *eep = (struct eeprom *)eeprom_va; 124 struct fbdevice *fb = &sc->sc_fb; 125 bus_space_handle_t bh; 126 int constype, isconsole; 127 char *name; 128 129 oba = &uoba->uoba_oba4; 130 131 /* Remember cookies for cgsix_mmap() */ 132 sc->sc_bustag = oba->oba_bustag; 133 sc->sc_paddr = (bus_addr_t)oba->oba_paddr; 134 135 fb->fb_device = &sc->sc_dev; 136 fb->fb_type.fb_type = FBTYPE_SUNFAST_COLOR; 137 fb->fb_flags = sc->sc_dev.dv_cfdata->cf_flags & FB_USERMASK; 138 fb->fb_type.fb_depth = 8; 139 140 fb_setsize_eeprom(fb, fb->fb_type.fb_depth, 1152, 900); 141 142 /* 143 * Dunno what the PROM has mapped, though obviously it must have 144 * the video RAM mapped. Just map what we care about for ourselves 145 * (the FHC, THC, and Brooktree registers). 146 */ 147 if (bus_space_map(oba->oba_bustag, 148 oba->oba_paddr + CGSIX_BT_OFFSET, 149 sizeof(*sc->sc_bt), 150 BUS_SPACE_MAP_LINEAR, 151 &bh) != 0) { 152 printf("%s: cannot map brooktree registers\n", self->dv_xname); 153 return; 154 } 155 sc->sc_bt = (struct bt_regs *)bh; 156 157 if (bus_space_map(oba->oba_bustag, 158 oba->oba_paddr + CGSIX_FHC_OFFSET, 159 sizeof(*sc->sc_fhc), 160 BUS_SPACE_MAP_LINEAR, 161 &bh) != 0) { 162 printf("%s: cannot map FHC registers\n", self->dv_xname); 163 return; 164 } 165 sc->sc_fhc = (int *)bh; 166 167 if (bus_space_map(oba->oba_bustag, 168 oba->oba_paddr + CGSIX_THC_OFFSET, 169 sizeof(*sc->sc_thc), 170 BUS_SPACE_MAP_LINEAR, 171 &bh) != 0) { 172 printf("%s: cannot map THC registers\n", self->dv_xname); 173 return; 174 } 175 sc->sc_thc = (struct cg6_thc *)bh; 176 177 if (bus_space_map(oba->oba_bustag, 178 oba->oba_paddr + CGSIX_TEC_OFFSET, 179 sizeof(*sc->sc_tec), 180 BUS_SPACE_MAP_LINEAR, 181 &bh) != 0) { 182 printf("%s: cannot map TEC registers\n", self->dv_xname); 183 return; 184 } 185 sc->sc_tec = (struct cg6_tec_xxx *)bh; 186 187 if (bus_space_map(oba->oba_bustag, 188 oba->oba_paddr + CGSIX_FBC_OFFSET, 189 sizeof(*sc->sc_fbc), 190 BUS_SPACE_MAP_LINEAR, 191 &bh) != 0) { 192 printf("%s: cannot map FBC registers\n", self->dv_xname); 193 return; 194 } 195 sc->sc_fbc = (struct cg6_fbc *)bh; 196 197 198 if (fb_pfour_id((void *)sc->sc_fhc) == PFOUR_ID_FASTCOLOR) { 199 fb->fb_flags |= FB_PFOUR; 200 name = "cgsix/p4"; 201 } else 202 name = "cgsix"; 203 204 constype = (fb->fb_flags & FB_PFOUR) ? EE_CONS_P4OPT : EE_CONS_COLOR; 205 206 /* 207 * Assume this is the console if there's no eeprom info 208 * to be found. 209 */ 210 if (eep == NULL || eep->eeConsole == constype) 211 isconsole = fb_is_console(0); 212 else 213 isconsole = 0; 214 215 if (isconsole && cgsix_use_rasterconsole) { 216 int ramsize = fb->fb_type.fb_height * fb->fb_linebytes; 217 if (bus_space_map(oba->oba_bustag, 218 oba->oba_paddr + CGSIX_RAM_OFFSET, 219 ramsize, 220 BUS_SPACE_MAP_LINEAR, 221 &bh) != 0) { 222 printf("%s: cannot map pixels\n", self->dv_xname); 223 return; 224 } 225 sc->sc_fb.fb_pixels = (caddr_t)bh; 226 } 227 228 cg6attach(sc, name, isconsole); 229 } 230
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