1 /* $NetBSD: cgthree_sbus.c,v 1.32 2022/09/25 18:03:04 thorpej 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /* 33 * Copyright (c) 1992, 1993 34 * The Regents of the University of California. All rights reserved. 35 * 36 * This software was developed by the Computer Systems Engineering group 37 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and 38 * contributed to Berkeley. 39 * 40 * All advertising materials mentioning features or use of this software 41 * must display the following acknowledgement: 42 * This product includes software developed by the University of 43 * California, Lawrence Berkeley Laboratory. 44 * 45 * Redistribution and use in source and binary forms, with or without 46 * modification, are permitted provided that the following conditions 47 * are met: 48 * 1. Redistributions of source code must retain the above copyright 49 * notice, this list of conditions and the following disclaimer. 50 * 2. Redistributions in binary form must reproduce the above copyright 51 * notice, this list of conditions and the following disclaimer in the 52 * documentation and/or other materials provided with the distribution. 53 * 3. Neither the name of the University nor the names of its contributors 54 * may be used to endorse or promote products derived from this software 55 * without specific prior written permission. 56 * 57 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 58 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 59 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 60 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 61 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 62 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 63 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 64 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 65 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 66 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 67 * SUCH DAMAGE. 68 * 69 * @(#)cgthree.c 8.2 (Berkeley) 10/30/93 70 */ 71 72 /* 73 * color display (cgthree) driver. 74 * 75 * Does not handle interrupts, even though they can occur. 76 * 77 * XXX should defer colormap updates to vertical retrace interrupts 78 */ 79 80 #include <sys/cdefs.h> 81 __KERNEL_RCSID(0, "$NetBSD: cgthree_sbus.c,v 1.32 2022/09/25 18:03:04 thorpej Exp $"); 82 83 #include <sys/param.h> 84 #include <sys/systm.h> 85 #include <sys/buf.h> 86 #include <sys/device.h> 87 #include <sys/ioctl.h> 88 #include <sys/mman.h> 89 #include <sys/tty.h> 90 #include <sys/conf.h> 91 92 #include <sys/bus.h> 93 #include <machine/autoconf.h> 94 95 #include <dev/sun/fbio.h> 96 #include <dev/sun/fbvar.h> 97 98 #include <dev/sun/btreg.h> 99 #include <dev/sun/btvar.h> 100 #include <dev/sun/cgthreereg.h> 101 #include <dev/sun/cgthreevar.h> 102 103 #include <dev/sbus/sbusvar.h> 104 105 106 /* autoconfiguration driver */ 107 static int cgthreematch_sbus(device_t, cfdata_t, void *); 108 static void cgthreeattach_sbus(device_t, device_t, void *); 109 110 CFATTACH_DECL_NEW(cgthree_sbus, sizeof(struct cgthree_softc), 111 cgthreematch_sbus, cgthreeattach_sbus, NULL, NULL); 112 113 /* 114 * Match a cgthree. 115 */ 116 int 117 cgthreematch_sbus(device_t parent, cfdata_t cf, void *aux) 118 { 119 struct sbus_attach_args *sa = aux; 120 121 if (strcmp(cf->cf_name, sa->sa_name) == 0) 122 return 100; /* beat genfb(4) */ 123 124 return 0; 125 } 126 127 /* 128 * Attach a display. We need to notice if it is the console, too. 129 */ 130 void 131 cgthreeattach_sbus(device_t parent, device_t self, void *args) 132 { 133 struct cgthree_softc *sc = device_private(self); 134 struct sbus_attach_args *sa = args; 135 struct fbdevice *fb = &sc->sc_fb; 136 int node = sa->sa_node; 137 int isconsole; 138 const char *name; 139 bus_space_handle_t bh; 140 141 sc->sc_dev = self; 142 143 /* Remember cookies for cgthree_mmap() */ 144 sc->sc_bustag = sa->sa_bustag; 145 sc->sc_paddr = sbus_bus_addr(sa->sa_bustag, sa->sa_slot, sa->sa_offset); 146 147 fb->fb_device = self; 148 fb->fb_flags = device_cfdata(self)->cf_flags & FB_USERMASK; 149 fb->fb_type.fb_type = FBTYPE_SUN3COLOR; 150 151 fb->fb_type.fb_depth = 8; 152 fb_setsize_obp(fb, fb->fb_type.fb_depth, 1152, 900, node); 153 154 /* 155 * When the ROM has mapped in a cgthree display, the address 156 * maps only the video RAM, so in any case we have to map the 157 * registers ourselves. 158 */ 159 if (sbus_bus_map(sa->sa_bustag, 160 sa->sa_slot, 161 sa->sa_offset + CG3REG_REG, 162 sizeof(struct fbcontrol), 163 BUS_SPACE_MAP_LINEAR, &bh) != 0) { 164 aprint_error_dev(self, "cannot map control registers\n"); 165 return; 166 } 167 sc->sc_fbc = (struct fbcontrol *)bus_space_vaddr(sa->sa_bustag, bh); 168 169 isconsole = fb_is_console(node); 170 name = prom_getpropstring(node, "model"); 171 if (name == NULL) 172 name = "cgthree"; 173 174 fb->fb_pixels = NULL; 175 if (sa->sa_npromvaddrs != 0) 176 fb->fb_pixels = (void *)(u_long)sa->sa_promvaddrs[0]; 177 if (fb->fb_pixels == NULL) { 178 int ramsize = fb->fb_type.fb_height * fb->fb_linebytes; 179 if (sbus_bus_map(sa->sa_bustag, 180 sa->sa_slot, 181 sa->sa_offset + CG3REG_MEM, 182 ramsize, 183 BUS_SPACE_MAP_LINEAR, &bh) != 0) { 184 aprint_error_dev(self, "cannot map pixels\n"); 185 return; 186 } 187 fb->fb_pixels = (char *)bus_space_vaddr(sa->sa_bustag, bh); 188 } 189 190 cgthreeattach(sc, name, isconsole); 191 } 192
Indexes created Thu Oct 02 14:10:14 GMT 2025