1 /* $NetBSD: cgthree_sbus.c,v 1.19 2007/10/19 12:01:10 ad 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. 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 * @(#)cgthree.c 8.2 (Berkeley) 10/30/93 77 */ 78 79 /* 80 * color display (cgthree) driver. 81 * 82 * Does not handle interrupts, even though they can occur. 83 * 84 * XXX should defer colormap updates to vertical retrace interrupts 85 */ 86 87 #include <sys/cdefs.h> 88 __KERNEL_RCSID(0, "$NetBSD: cgthree_sbus.c,v 1.19 2007/10/19 12:01:10 ad Exp $"); 89 90 #include <sys/param.h> 91 #include <sys/systm.h> 92 #include <sys/buf.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 <sys/bus.h> 101 #include <machine/autoconf.h> 102 103 #include <dev/sun/fbio.h> 104 #include <dev/sun/fbvar.h> 105 106 #include <dev/sun/btreg.h> 107 #include <dev/sun/btvar.h> 108 #include <dev/sun/cgthreereg.h> 109 #include <dev/sun/cgthreevar.h> 110 111 #include <dev/sbus/sbusvar.h> 112 113 /* Allocate an `sbusdev' in addition to the cgthree softc */ 114 struct cgthree_sbus_softc { 115 struct cgthree_softc bss_softc; 116 struct sbusdev bss_sd; 117 }; 118 119 120 /* autoconfiguration driver */ 121 static int cgthreematch_sbus(struct device *, struct cfdata *, void *); 122 static void cgthreeattach_sbus(struct device *, struct device *, void *); 123 124 CFATTACH_DECL(cgthree_sbus, sizeof(struct cgthree_softc), 125 cgthreematch_sbus, cgthreeattach_sbus, NULL, NULL); 126 127 /* 128 * Match a cgthree. 129 */ 130 int 131 cgthreematch_sbus(parent, cf, aux) 132 struct device *parent; 133 struct cfdata *cf; 134 void *aux; 135 { 136 struct sbus_attach_args *sa = aux; 137 138 return (strcmp(cf->cf_name, sa->sa_name) == 0); 139 } 140 141 /* 142 * Attach a display. We need to notice if it is the console, too. 143 */ 144 void 145 cgthreeattach_sbus(parent, self, args) 146 struct device *parent, *self; 147 void *args; 148 { 149 struct cgthree_softc *sc = (struct cgthree_softc *)self; 150 struct sbusdev *sd = &((struct cgthree_sbus_softc *)self)->bss_sd; 151 struct sbus_attach_args *sa = args; 152 struct fbdevice *fb = &sc->sc_fb; 153 int node = sa->sa_node; 154 int isconsole; 155 const char *name; 156 bus_space_handle_t bh; 157 158 /* Remember cookies for cgthree_mmap() */ 159 sc->sc_bustag = sa->sa_bustag; 160 sc->sc_paddr = sbus_bus_addr(sa->sa_bustag, sa->sa_slot, sa->sa_offset); 161 162 fb->fb_device = &sc->sc_dev; 163 fb->fb_flags = device_cfdata(&sc->sc_dev)->cf_flags & FB_USERMASK; 164 fb->fb_type.fb_type = FBTYPE_SUN3COLOR; 165 166 fb->fb_type.fb_depth = 8; 167 fb_setsize_obp(fb, fb->fb_type.fb_depth, 1152, 900, node); 168 169 /* 170 * When the ROM has mapped in a cgthree display, the address 171 * maps only the video RAM, so in any case we have to map the 172 * registers ourselves. We only need the video RAM if we are 173 * going to print characters via rconsole. 174 */ 175 if (sbus_bus_map(sa->sa_bustag, 176 sa->sa_slot, 177 sa->sa_offset + CG3REG_REG, 178 sizeof(struct fbcontrol), 179 BUS_SPACE_MAP_LINEAR, &bh) != 0) { 180 printf("%s: cannot map control registers\n", self->dv_xname); 181 return; 182 } 183 sc->sc_fbc = (struct fbcontrol *)bus_space_vaddr(sa->sa_bustag, bh); 184 185 isconsole = fb_is_console(node); 186 name = prom_getpropstring(node, "model"); 187 if (name == NULL) 188 name = "cgthree"; 189 190 if (sa->sa_npromvaddrs != 0) 191 fb->fb_pixels = (void *)(u_long)sa->sa_promvaddrs[0]; 192 if (isconsole && fb->fb_pixels == NULL) { 193 int ramsize = fb->fb_type.fb_height * fb->fb_linebytes; 194 if (sbus_bus_map(sa->sa_bustag, 195 sa->sa_slot, 196 sa->sa_offset + CG3REG_MEM, 197 ramsize, 198 BUS_SPACE_MAP_LINEAR, &bh) != 0) { 199 printf("%s: cannot map pixels\n", self->dv_xname); 200 return; 201 } 202 fb->fb_pixels = (char *)bus_space_vaddr(sa->sa_bustag, bh); 203 } 204 205 sbus_establish(sd, &sc->sc_dev); 206 cgthreeattach(sc, name, isconsole); 207 } 208