1 /* $NetBSD: bwtwo_any.c,v 1.4 2002/03/22 00:24:45 fredette 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 and Matthew Fredette. 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@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/conf.h> 103 #include <sun2/sun2/control.h> 104 105 #include <dev/sun/fbio.h> 106 #include <dev/sun/fbvar.h> 107 #include <dev/sun/btreg.h> 108 #include <sun2/dev/bwtworeg.h> 109 #include <dev/sun/bwtwovar.h> 110 111 /* autoconfiguration driver */ 112 static void bwtwoattach_any (struct device *, struct device *, void *); 113 static int bwtwomatch_any (struct device *, struct cfdata *, void *); 114 115 struct bwtwosun2_softc { 116 struct bwtwo_softc sc; 117 bus_space_handle_t bh; 118 }; 119 120 struct cfattach bwtwo_obio_ca = { 121 sizeof(struct bwtwosun2_softc), bwtwomatch_any, bwtwoattach_any 122 }; 123 124 struct cfattach bwtwo_obmem_ca = { 125 sizeof(struct bwtwosun2_softc), bwtwomatch_any, bwtwoattach_any 126 }; 127 128 static int bwtwo_get_video_sun2 __P((struct bwtwo_softc *)); 129 static void bwtwo_set_video_sun2 __P((struct bwtwo_softc *, int)); 130 131 extern int fbnode; 132 133 static int 134 bwtwomatch_any(parent, cf, aux) 135 struct device *parent; 136 struct cfdata *cf; 137 void *aux; 138 { 139 struct mainbus_attach_args *ma = aux; 140 bus_space_handle_t bh; 141 int matched; 142 143 /* Make sure there is something there... */ 144 if (bus_space_map(ma->ma_bustag, ma->ma_paddr + BWREG_REG, sizeof(struct bwtworeg), 145 0, &bh)) 146 return (0); 147 matched = (bus_space_peek_1(ma->ma_bustag, bh, 0, NULL) == 0); 148 bus_space_unmap(ma->ma_bustag, bh, sizeof(struct bwtworeg)); 149 return (matched); 150 } 151 152 static void 153 bwtwoattach_any(parent, self, aux) 154 struct device *parent, *self; 155 void *aux; 156 { 157 struct bwtwosun2_softc *scsun2 = (struct bwtwosun2_softc *)self; 158 struct bwtwo_softc *sc = &scsun2->sc; 159 struct mainbus_attach_args *ma = aux; 160 struct fbdevice *fb = &sc->sc_fb; 161 bus_space_handle_t bh; 162 int isconsole; 163 char *name; 164 165 /* Remember cookies for bwtwo_mmap() */ 166 sc->sc_bustag = ma->ma_bustag; 167 sc->sc_paddr = ma->ma_paddr; 168 169 fb->fb_flags = sc->sc_dev.dv_cfdata->cf_flags; 170 fb->fb_type.fb_depth = 1; 171 fb_setsize_eeprom(fb, fb->fb_type.fb_depth, 1152, 900); 172 173 isconsole = fb_is_console(0); 174 175 /* A plain bwtwo */ 176 sc->sc_reg = NULL; 177 fb->fb_pfour = NULL; 178 name = "bwtwo"; 179 sc->sc_pixeloffset = BWREG_MEM; 180 sc->sc_get_video = bwtwo_get_video_sun2; 181 sc->sc_set_video = bwtwo_set_video_sun2; 182 183 /* Map the registers. */ 184 if (bus_space_map(ma->ma_bustag, ma->ma_paddr + BWREG_REG, sizeof(struct bwtworeg), 185 0, &scsun2->bh)) { 186 printf("%s: cannot map regs\n", self->dv_xname); 187 return; 188 } 189 190 if (isconsole) { 191 int ramsize = fb->fb_type.fb_height * fb->fb_linebytes; 192 if (bus_space_map(ma->ma_bustag, ma->ma_paddr + sc->sc_pixeloffset, 193 ramsize, 194 BUS_SPACE_MAP_LINEAR, &bh) != 0) { 195 printf("%s: cannot map pixels\n", self->dv_xname); 196 return; 197 } 198 sc->sc_fb.fb_pixels = (char *)bh; 199 } 200 201 bwtwoattach(sc, name, isconsole); 202 } 203 204 static void 205 bwtwo_set_video_sun2(sc, enable) 206 struct bwtwo_softc *sc; 207 int enable; 208 { 209 struct bwtwosun2_softc *scsun2 = (struct bwtwosun2_softc *)sc; 210 unsigned char cr; 211 212 cr = bus_space_read_1(sc->sc_bustag, scsun2->bh, 0); 213 bus_space_write_1(sc->sc_bustag, scsun2->bh, 0, (enable ? 214 (cr | BW2_CR_ENABLE_VIDEO) : 215 (cr & ~BW2_CR_ENABLE_VIDEO))); 216 return; 217 } 218 219 static int 220 bwtwo_get_video_sun2(sc) 221 struct bwtwo_softc *sc; 222 { 223 struct bwtwosun2_softc *scsun2 = (struct bwtwosun2_softc *)sc; 224 225 return ((bus_space_read_1(sc->sc_bustag, scsun2->bh, 0) & BW2_CR_ENABLE_VIDEO) != 0); 226 } 227