bwtwo_obio.c revision 1.5.4.1
1 /* $NetBSD: bwtwo_obio.c,v 1.5.4.1 2002/05/19 08:20:00 gehenna Exp $ */ 2 3 /*- 4 * Copyright (c) 1996, 1997 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe. 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 * Copyright (c) 1992, 1993 41 * The Regents of the University of California. All rights reserved. 42 * 43 * This software was developed by the Computer Systems Engineering group 44 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and 45 * contributed to Berkeley. 46 * 47 * All advertising materials mentioning features or use of this software 48 * must display the following acknowledgement: 49 * This product includes software developed by the University of 50 * California, Lawrence Berkeley Laboratory. 51 * 52 * Redistribution and use in source and binary forms, with or without 53 * modification, are permitted provided that the following conditions 54 * are met: 55 * 1. Redistributions of source code must retain the above copyright 56 * notice, this list of conditions and the following disclaimer. 57 * 2. Redistributions in binary form must reproduce the above copyright 58 * notice, this list of conditions and the following disclaimer in the 59 * documentation and/or other materials provided with the distribution. 60 * 3. All advertising materials mentioning features or use of this software 61 * must display the following acknowledgement: 62 * This product includes software developed by the University of 63 * California, Berkeley and its contributors. 64 * 4. Neither the name of the University nor the names of its contributors 65 * may be used to endorse or promote products derived from this software 66 * without specific prior written permission. 67 * 68 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 69 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 70 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 71 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 72 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 73 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 74 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 75 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 76 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 77 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 78 * SUCH DAMAGE. 79 * 80 * @(#)bwtwo.c 8.1 (Berkeley) 6/11/93 81 */ 82 83 /* 84 * black&white display (bwtwo) driver. 85 * 86 * Does not handle interrupts, even though they can occur. 87 * 88 * P4 and overlay plane support by Jason R. Thorpe <thorpej (at) NetBSD.ORG>. 89 * Overlay plane handling hints and ideas provided by Brad Spencer. 90 */ 91 92 #include <sys/param.h> 93 #include <sys/systm.h> 94 #include <sys/device.h> 95 #include <sys/ioctl.h> 96 #include <sys/malloc.h> 97 #include <sys/mman.h> 98 #include <sys/tty.h> 99 #include <sys/conf.h> 100 101 #include <machine/autoconf.h> 102 #include <machine/eeprom.h> 103 #include <machine/ctlreg.h> 104 #include <sparc/sparc/asm.h> 105 106 #include <dev/sun/fbio.h> 107 #include <dev/sun/fbvar.h> 108 #include <dev/sun/btreg.h> 109 #include <dev/sun/bwtworeg.h> 110 #include <dev/sun/bwtwovar.h> 111 #include <dev/sun/pfourreg.h> 112 113 /* autoconfiguration driver */ 114 static void bwtwoattach_obio (struct device *, struct device *, void *); 115 static int bwtwomatch_obio (struct device *, struct cfdata *, void *); 116 117 118 struct cfattach bwtwo_obio_ca = { 119 sizeof(struct bwtwo_softc), bwtwomatch_obio, bwtwoattach_obio 120 }; 121 122 static int bwtwo_get_video_sun4(struct bwtwo_softc *); 123 static void bwtwo_set_video_sun4(struct bwtwo_softc *, int); 124 125 extern int fbnode; 126 127 static int 128 bwtwomatch_obio(parent, cf, aux) 129 struct device *parent; 130 struct cfdata *cf; 131 void *aux; 132 { 133 union obio_attach_args *uoba = aux; 134 struct obio4_attach_args *oba; 135 136 if (uoba->uoba_isobio4 == 0) 137 return (0); 138 139 oba = &uoba->uoba_oba4; 140 return (bus_space_probe(oba->oba_bustag, oba->oba_paddr, 141 4, /* probe size */ 142 0, /* offset */ 143 0, /* flags */ 144 bwtwo_pfour_probe, cf)); 145 } 146 147 static void 148 bwtwoattach_obio(parent, self, uax) 149 struct device *parent, *self; 150 void *uax; 151 { 152 struct bwtwo_softc *sc = (struct bwtwo_softc *)self; 153 union obio_attach_args *uoba = uax; 154 struct obio4_attach_args *oba; 155 struct fbdevice *fb = &sc->sc_fb; 156 struct eeprom *eep = (struct eeprom *)eeprom_va; 157 bus_space_handle_t bh; 158 int constype, isconsole; 159 char *name; 160 161 oba = &uoba->uoba_oba4; 162 163 /* Remember cookies for bwtwo_mmap() */ 164 sc->sc_bustag = oba->oba_bustag; 165 sc->sc_paddr = (bus_addr_t)oba->oba_paddr; 166 167 fb->fb_flags = sc->sc_dev.dv_cfdata->cf_flags; 168 fb->fb_type.fb_depth = 1; 169 fb_setsize_eeprom(fb, fb->fb_type.fb_depth, 1152, 900); 170 171 constype = (fb->fb_flags & FB_PFOUR) ? EE_CONS_P4OPT : EE_CONS_BW; 172 if (eep == NULL || eep->eeConsole == constype) 173 isconsole = fb_is_console(0); 174 else 175 isconsole = 0; 176 177 if (fb->fb_flags & FB_PFOUR) { 178 /* 179 * Map the pfour control register. 180 * Set pixel offset to appropriate overlay plane. 181 */ 182 name = "bwtwo/p4"; 183 184 if (bus_space_map(oba->oba_bustag, 185 oba->oba_paddr, 186 sizeof(u_int32_t), 187 BUS_SPACE_MAP_LINEAR, 188 &bh) != 0) { 189 printf("%s: cannot map pfour register\n", 190 self->dv_xname); 191 return; 192 } 193 fb->fb_pfour = (u_int32_t *)bh; 194 sc->sc_reg = NULL; 195 196 /* 197 * Notice if this is an overlay plane on a color 198 * framebuffer. Note that PFOUR_COLOR_OFF_OVERLAY 199 * is the same as PFOUR_BW_OFF, but we use the 200 * different names anyway. 201 */ 202 switch (PFOUR_ID(*fb->fb_pfour)) { 203 case PFOUR_ID_COLOR8P1: 204 sc->sc_ovtype = BWO_CGFOUR; 205 sc->sc_pixeloffset = PFOUR_COLOR_OFF_OVERLAY; 206 break; 207 208 case PFOUR_ID_COLOR24: 209 sc->sc_ovtype = BWO_CGEIGHT; 210 sc->sc_pixeloffset = PFOUR_COLOR_OFF_OVERLAY; 211 break; 212 213 default: 214 sc->sc_ovtype = BWO_NONE; 215 sc->sc_pixeloffset = PFOUR_BW_OFF; 216 break; 217 } 218 219 } else { 220 /* A plain bwtwo */ 221 if (bus_space_map(oba->oba_bustag, 222 oba->oba_paddr + BWREG_REG, 223 sizeof(struct fbcontrol), 224 BUS_SPACE_MAP_LINEAR, 225 &bh) != 0) { 226 printf("%s: cannot map control registers\n", 227 self->dv_xname); 228 return; 229 } 230 sc->sc_reg = (struct fbcontrol *)bh; 231 fb->fb_pfour = NULL; 232 233 name = "bwtwo"; 234 sc->sc_pixeloffset = BWREG_MEM; 235 } 236 sc->sc_get_video = bwtwo_get_video_sun4; 237 sc->sc_set_video = bwtwo_set_video_sun4; 238 239 if (isconsole) { 240 int ramsize = fb->fb_type.fb_height * fb->fb_linebytes; 241 if (bus_space_map(oba->oba_bustag, 242 oba->oba_paddr + sc->sc_pixeloffset, 243 ramsize, 244 BUS_SPACE_MAP_LINEAR, 245 &bh) != 0) { 246 printf("%s: cannot map pixels\n", self->dv_xname); 247 return; 248 } 249 sc->sc_fb.fb_pixels = (char *)bh; 250 } 251 252 bwtwoattach(sc, name, isconsole); 253 } 254 255 static void 256 bwtwo_set_video_sun4(sc, enable) 257 struct bwtwo_softc *sc; 258 int enable; 259 { 260 261 if (sc->sc_fb.fb_flags & FB_PFOUR) { 262 /* 263 * This handles the overlay plane case, too. 264 */ 265 fb_pfour_set_video(&sc->sc_fb, enable); 266 return; 267 } 268 if (enable) 269 stba(AC_SYSENABLE, ASI_CONTROL, 270 lduba(AC_SYSENABLE, ASI_CONTROL) | SYSEN_VIDEO); 271 else 272 stba(AC_SYSENABLE, ASI_CONTROL, 273 lduba(AC_SYSENABLE, ASI_CONTROL) & ~SYSEN_VIDEO); 274 275 return; 276 } 277 278 static int 279 bwtwo_get_video_sun4(sc) 280 struct bwtwo_softc *sc; 281 { 282 283 if (sc->sc_fb.fb_flags & FB_PFOUR) { 284 /* 285 * This handles the overlay plane case, too. 286 */ 287 return (fb_pfour_get_video(&sc->sc_fb)); 288 } else 289 return ((lduba(AC_SYSENABLE, ASI_CONTROL) & SYSEN_VIDEO) != 0); 290 } 291
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