1 /* $NetBSD: bwtwo_any.c,v 1.11 2003/12/04 12:42:54 keihan 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. Neither the name of the University nor the names of its contributors 61 * may be used to endorse or promote products derived from this software 62 * without specific prior written permission. 63 * 64 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 65 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 66 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 67 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 68 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 69 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 70 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 71 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 72 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 73 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 74 * SUCH DAMAGE. 75 * 76 * @(#)bwtwo.c 8.1 (Berkeley) 6/11/93 77 */ 78 79 /* 80 * black&white display (bwtwo) driver. 81 * 82 * Does not handle interrupts, even though they can occur. 83 * 84 * P4 and overlay plane support by Jason R. Thorpe <thorpej@NetBSD.org>. 85 * Overlay plane handling hints and ideas provided by Brad Spencer. 86 */ 87 88 #include <sys/cdefs.h> 89 __KERNEL_RCSID(0, "$NetBSD: bwtwo_any.c,v 1.11 2003/12/04 12:42:54 keihan Exp $"); 90 91 #include <sys/param.h> 92 #include <sys/systm.h> 93 #include <sys/device.h> 94 #include <sys/ioctl.h> 95 #include <sys/malloc.h> 96 #include <sys/mman.h> 97 #include <sys/tty.h> 98 #include <sys/conf.h> 99 100 #include <machine/autoconf.h> 101 #include <sun2/sun2/control.h> 102 103 #include <dev/sun/fbio.h> 104 #include <dev/sun/fbvar.h> 105 #include <dev/sun/btreg.h> 106 #include <sun2/dev/bwtworeg.h> 107 #include <dev/sun/bwtwovar.h> 108 109 /* autoconfiguration driver */ 110 static void bwtwoattach_any (struct device *, struct device *, void *); 111 static int bwtwomatch_any (struct device *, struct cfdata *, void *); 112 113 struct bwtwosun2_softc { 114 struct bwtwo_softc sc; 115 bus_space_handle_t bh; 116 }; 117 118 CFATTACH_DECL(bwtwo_obio, sizeof(struct bwtwosun2_softc), 119 bwtwomatch_any, bwtwoattach_any, NULL, NULL); 120 121 CFATTACH_DECL(bwtwo_obmem, sizeof(struct bwtwosun2_softc), 122 bwtwomatch_any, bwtwoattach_any, NULL, NULL); 123 124 static int bwtwo_get_video_sun2 __P((struct bwtwo_softc *)); 125 static void bwtwo_set_video_sun2 __P((struct bwtwo_softc *, int)); 126 127 extern int fbnode; 128 129 static int 130 bwtwomatch_any(parent, cf, aux) 131 struct device *parent; 132 struct cfdata *cf; 133 void *aux; 134 { 135 struct mainbus_attach_args *ma = aux; 136 bus_space_handle_t bh; 137 int matched; 138 139 /* Make sure there is something there... */ 140 if (bus_space_map(ma->ma_bustag, ma->ma_paddr + BWREG_REG, sizeof(struct bwtworeg), 141 0, &bh)) 142 return (0); 143 matched = (bus_space_peek_1(ma->ma_bustag, bh, 0, NULL) == 0); 144 bus_space_unmap(ma->ma_bustag, bh, sizeof(struct bwtworeg)); 145 return (matched); 146 } 147 148 static void 149 bwtwoattach_any(parent, self, aux) 150 struct device *parent, *self; 151 void *aux; 152 { 153 struct bwtwosun2_softc *scsun2 = (struct bwtwosun2_softc *)self; 154 struct bwtwo_softc *sc = &scsun2->sc; 155 struct mainbus_attach_args *ma = aux; 156 struct fbdevice *fb = &sc->sc_fb; 157 bus_space_handle_t bh; 158 int isconsole; 159 char *name; 160 161 /* Remember cookies for bwtwo_mmap() */ 162 sc->sc_bustag = ma->ma_bustag; 163 sc->sc_paddr = ma->ma_paddr; 164 165 fb->fb_flags = sc->sc_dev.dv_cfdata->cf_flags; 166 fb->fb_type.fb_depth = 1; 167 fb_setsize_eeprom(fb, fb->fb_type.fb_depth, 1152, 900); 168 169 isconsole = fb_is_console(0); 170 171 /* A plain bwtwo */ 172 sc->sc_reg = NULL; 173 fb->fb_pfour = NULL; 174 name = "bwtwo"; 175 sc->sc_pixeloffset = BWREG_MEM; 176 sc->sc_get_video = bwtwo_get_video_sun2; 177 sc->sc_set_video = bwtwo_set_video_sun2; 178 179 /* Map the registers. */ 180 if (bus_space_map(ma->ma_bustag, ma->ma_paddr + BWREG_REG, sizeof(struct bwtworeg), 181 0, &scsun2->bh)) { 182 printf("%s: cannot map regs\n", self->dv_xname); 183 return; 184 } 185 186 if (isconsole) { 187 int ramsize = fb->fb_type.fb_height * fb->fb_linebytes; 188 if (bus_space_map(ma->ma_bustag, ma->ma_paddr + sc->sc_pixeloffset, 189 ramsize, 190 BUS_SPACE_MAP_LINEAR, &bh) != 0) { 191 printf("%s: cannot map pixels\n", self->dv_xname); 192 return; 193 } 194 sc->sc_fb.fb_pixels = (char *)bh; 195 } 196 197 bwtwoattach(sc, name, isconsole); 198 } 199 200 static void 201 bwtwo_set_video_sun2(sc, enable) 202 struct bwtwo_softc *sc; 203 int enable; 204 { 205 struct bwtwosun2_softc *scsun2 = (struct bwtwosun2_softc *)sc; 206 unsigned char cr; 207 208 cr = bus_space_read_1(sc->sc_bustag, scsun2->bh, 0); 209 bus_space_write_1(sc->sc_bustag, scsun2->bh, 0, (enable ? 210 (cr | BW2_CR_ENABLE_VIDEO) : 211 (cr & ~BW2_CR_ENABLE_VIDEO))); 212 return; 213 } 214 215 static int 216 bwtwo_get_video_sun2(sc) 217 struct bwtwo_softc *sc; 218 { 219 struct bwtwosun2_softc *scsun2 = (struct bwtwosun2_softc *)sc; 220 221 return ((bus_space_read_1(sc->sc_bustag, scsun2->bh, 0) & BW2_CR_ENABLE_VIDEO) != 0); 222 } 223