1 /* $NetBSD: cgthree_sbus.c,v 1.6 2002/03/11 16:00:55 pk 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 * 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 * @(#)cgthree.c 8.2 (Berkeley) 10/30/93 81 */ 82 83 /* 84 * color display (cgthree) driver. 85 * 86 * Does not handle interrupts, even though they can occur. 87 * 88 * XXX should defer colormap updates to vertical retrace interrupts 89 */ 90 91 #include <sys/cdefs.h> 92 __KERNEL_RCSID(0, "$NetBSD: cgthree_sbus.c,v 1.6 2002/03/11 16:00:55 pk Exp $"); 93 94 #include <sys/param.h> 95 #include <sys/systm.h> 96 #include <sys/buf.h> 97 #include <sys/device.h> 98 #include <sys/ioctl.h> 99 #include <sys/malloc.h> 100 #include <sys/mman.h> 101 #include <sys/tty.h> 102 #include <sys/conf.h> 103 104 #include <machine/bus.h> 105 #include <machine/autoconf.h> 106 107 #include <dev/sun/fbio.h> 108 #include <dev/sun/fbvar.h> 109 110 #include <dev/sun/btreg.h> 111 #include <dev/sun/btvar.h> 112 #include <dev/sun/cgthreereg.h> 113 #include <dev/sun/cgthreevar.h> 114 115 #include <dev/sbus/sbusvar.h> 116 117 /* Allocate an `sbusdev' in addition to the cgthree softc */ 118 struct cgthree_sbus_softc { 119 struct cgthree_softc bss_softc; 120 struct sbusdev bss_sd; 121 }; 122 123 124 /* autoconfiguration driver */ 125 static int cgthreematch_sbus(struct device *, struct cfdata *, void *); 126 static void cgthreeattach_sbus(struct device *, struct device *, void *); 127 128 struct cfattach cgthree_sbus_ca = { 129 sizeof(struct cgthree_softc), cgthreematch_sbus, cgthreeattach_sbus 130 }; 131 132 133 /* 134 * Match a cgthree. 135 */ 136 int 137 cgthreematch_sbus(parent, cf, aux) 138 struct device *parent; 139 struct cfdata *cf; 140 void *aux; 141 { 142 struct sbus_attach_args *sa = aux; 143 144 return (strcmp(cf->cf_driver->cd_name, sa->sa_name) == 0); 145 } 146 147 /* 148 * Attach a display. We need to notice if it is the console, too. 149 */ 150 void 151 cgthreeattach_sbus(parent, self, args) 152 struct device *parent, *self; 153 void *args; 154 { 155 struct cgthree_softc *sc = (struct cgthree_softc *)self; 156 struct sbusdev *sd = &((struct cgthree_sbus_softc *)self)->bss_sd; 157 struct sbus_attach_args *sa = args; 158 struct fbdevice *fb = &sc->sc_fb; 159 int node = sa->sa_node; 160 int isconsole; 161 char *name; 162 bus_space_handle_t bh; 163 164 /* Remember cookies for cgthree_mmap() */ 165 sc->sc_bustag = sa->sa_bustag; 166 sc->sc_paddr = sbus_bus_addr(sa->sa_bustag, sa->sa_slot, sa->sa_offset); 167 168 fb->fb_device = &sc->sc_dev; 169 fb->fb_flags = sc->sc_dev.dv_cfdata->cf_flags & FB_USERMASK; 170 fb->fb_type.fb_type = FBTYPE_SUN3COLOR; 171 172 fb->fb_type.fb_depth = 8; 173 fb_setsize_obp(fb, fb->fb_type.fb_depth, 1152, 900, node); 174 175 /* 176 * When the ROM has mapped in a cgthree display, the address 177 * maps only the video RAM, so in any case we have to map the 178 * registers ourselves. We only need the video RAM if we are 179 * going to print characters via rconsole. 180 */ 181 if (sbus_bus_map(sa->sa_bustag, 182 sa->sa_slot, 183 sa->sa_offset + CG3REG_REG, 184 sizeof(struct fbcontrol), 185 BUS_SPACE_MAP_LINEAR, &bh) != 0) { 186 printf("%s: cannot map control registers\n", self->dv_xname); 187 return; 188 } 189 sc->sc_fbc = (struct fbcontrol *)bh; 190 191 isconsole = fb_is_console(node); 192 name = PROM_getpropstring(node, "model"); 193 194 if (sa->sa_npromvaddrs != 0) 195 fb->fb_pixels = (caddr_t)(u_long)sa->sa_promvaddrs[0]; 196 if (isconsole && fb->fb_pixels == NULL) { 197 int ramsize = fb->fb_type.fb_height * fb->fb_linebytes; 198 if (sbus_bus_map(sa->sa_bustag, 199 sa->sa_slot, 200 sa->sa_offset + CG3REG_MEM, 201 ramsize, 202 BUS_SPACE_MAP_LINEAR, &bh) != 0) { 203 printf("%s: cannot map pixels\n", self->dv_xname); 204 return; 205 } 206 fb->fb_pixels = (char *)bh; 207 } 208 209 sbus_establish(sd, &sc->sc_dev); 210 cgthreeattach(sc, name, isconsole); 211 } 212