1 /* $NetBSD: cgsix_obio.c,v 1.28 2023/12/20 05:33:18 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 * color display (cgsix) driver; sun4 obio bus front-end. 34 */ 35 36 #include <sys/cdefs.h> 37 __KERNEL_RCSID(0, "$NetBSD: cgsix_obio.c,v 1.28 2023/12/20 05:33:18 thorpej Exp $"); 38 39 #include <sys/param.h> 40 #include <sys/systm.h> 41 #include <sys/buf.h> 42 #include <sys/device.h> 43 #include <sys/ioctl.h> 44 #include <sys/mman.h> 45 #include <sys/tty.h> 46 #include <sys/conf.h> 47 48 #ifdef DEBUG 49 #include <sys/proc.h> 50 #include <sys/syslog.h> 51 #endif 52 53 #include <sys/bus.h> 54 #include <machine/autoconf.h> 55 #include <machine/eeprom.h> 56 57 #include <dev/sun/fbio.h> 58 #include <dev/sun/fbvar.h> 59 #include <dev/sun/btreg.h> 60 #include <dev/sun/btvar.h> 61 #include <dev/sun/cgsixreg.h> 62 #include <dev/sun/cgsixvar.h> 63 #include <dev/sun/pfourreg.h> 64 65 /* autoconfiguration driver */ 66 static int cgsixmatch(device_t, struct cfdata *, void *); 67 static void cgsixattach(device_t, device_t, void *); 68 static int cg6_pfour_probe(void *, void *); 69 70 CFATTACH_DECL_NEW(cgsix_obio, sizeof(struct cgsix_softc), 71 cgsixmatch, cgsixattach, NULL, NULL); 72 73 /* 74 * Match a cgsix. 75 */ 76 static int 77 cgsixmatch(device_t parent, struct cfdata *cf, void *aux) 78 { 79 union obio_attach_args *uoba = aux; 80 struct obio4_attach_args *oba; 81 82 if (uoba->uoba_isobio4 == 0) 83 return (0); 84 85 oba = &uoba->uoba_oba4; 86 return (bus_space_probe(oba->oba_bustag, 87 oba->oba_paddr + CGSIX_FHC_OFFSET, 88 4, /* probe size */ 89 0, /* offset */ 90 0, /* flags */ 91 cg6_pfour_probe, NULL)); 92 } 93 94 static int 95 cg6_pfour_probe(void *vaddr, void *arg) 96 { 97 98 return (fb_pfour_id(vaddr) == PFOUR_ID_FASTCOLOR); 99 } 100 101 102 /* 103 * Attach a display. 104 */ 105 static void 106 cgsixattach(device_t parent, device_t self, void *aux) 107 { 108 struct cgsix_softc *sc = device_private(self); 109 union obio_attach_args *uoba = aux; 110 struct obio4_attach_args *oba; 111 struct eeprom *eep = (struct eeprom *)eeprom_va; 112 struct fbdevice *fb = &sc->sc_fb; 113 bus_space_handle_t bh; 114 int constype, isconsole; 115 const char *name; 116 117 sc->sc_dev = self; 118 oba = &uoba->uoba_oba4; 119 120 /* Remember cookies for cgsix_mmap() */ 121 sc->sc_bustag = oba->oba_bustag; 122 sc->sc_paddr = (bus_addr_t)oba->oba_paddr; 123 124 fb->fb_device = sc->sc_dev; 125 fb->fb_type.fb_type = FBTYPE_SUNFAST_COLOR; 126 fb->fb_flags = device_cfdata(sc->sc_dev)->cf_flags & FB_USERMASK; 127 fb->fb_type.fb_depth = 8; 128 129 fb_setsize_eeprom(fb, fb->fb_type.fb_depth, 1152, 900); 130 131 sc->sc_ramsize = 1024 * 1024; /* All our cgsix's are 1MB */ 132 133 /* 134 * Dunno what the PROM has mapped, though obviously it must have 135 * the video RAM mapped. Just map what we care about for ourselves 136 * (the FHC, THC, and Brooktree registers). 137 */ 138 if (bus_space_map(oba->oba_bustag, 139 oba->oba_paddr + CGSIX_BT_OFFSET, 140 sizeof(*sc->sc_bt), 141 BUS_SPACE_MAP_LINEAR, 142 &bh) != 0) { 143 printf("%s: cannot map brooktree registers\n", device_xname(self)); 144 return; 145 } 146 sc->sc_bt = (struct bt_regs *)bh; 147 148 if (bus_space_map(oba->oba_bustag, 149 oba->oba_paddr + CGSIX_FHC_OFFSET, 150 sizeof(*sc->sc_fhc), 151 BUS_SPACE_MAP_LINEAR, 152 &bh) != 0) { 153 printf("%s: cannot map FHC registers\n", device_xname(self)); 154 return; 155 } 156 sc->sc_fhc = (int *)bh; 157 158 if (bus_space_map(oba->oba_bustag, 159 oba->oba_paddr + CGSIX_THC_OFFSET, 160 sizeof(*sc->sc_thc), 161 BUS_SPACE_MAP_LINEAR, 162 &bh) != 0) { 163 printf("%s: cannot map THC registers\n", device_xname(self)); 164 return; 165 } 166 sc->sc_thc = (struct cg6_thc *)bh; 167 168 if (bus_space_map(oba->oba_bustag, 169 oba->oba_paddr + CGSIX_TEC_OFFSET, 170 sizeof(*sc->sc_tec), 171 BUS_SPACE_MAP_LINEAR, 172 &bh) != 0) { 173 printf("%s: cannot map TEC registers\n", device_xname(self)); 174 return; 175 } 176 sc->sc_tec = (struct cg6_tec_xxx *)bh; 177 178 if (bus_space_map(oba->oba_bustag, 179 oba->oba_paddr + CGSIX_FBC_OFFSET, 180 sizeof(*sc->sc_fbc), 181 BUS_SPACE_MAP_LINEAR, 182 &bh) != 0) { 183 printf("%s: cannot map FBC registers\n", device_xname(self)); 184 return; 185 } 186 sc->sc_fbc = (struct cg6_fbc *)bh; 187 188 189 if (fb_pfour_id(sc->sc_fhc) == PFOUR_ID_FASTCOLOR) { 190 fb->fb_flags |= FB_PFOUR; 191 name = "cgsix/p4"; 192 } else 193 name = "cgsix"; 194 195 constype = (fb->fb_flags & FB_PFOUR) ? EE_CONS_P4OPT : EE_CONS_COLOR; 196 197 /* 198 * Check to see if this is the console if there's no eeprom info 199 * to be found, or if it's the correct framebuffer type. 200 */ 201 if (eep == NULL || eep->eeConsole == constype) 202 isconsole = fb_is_console(0); 203 else 204 isconsole = 0; 205 206 if (bus_space_map(oba->oba_bustag, 207 oba->oba_paddr + CGSIX_RAM_OFFSET, 208 sc->sc_ramsize, 209 BUS_SPACE_MAP_LINEAR, 210 &bh) != 0) { 211 printf("%s: cannot map pixels\n", device_xname(self)); 212 return; 213 } 214 sc->sc_fb.fb_pixels = (void *)bh; 215 216 cg6attach(sc, name, isconsole); 217 } 218
Indexes created Sat Sep 20 22:09:52 GMT 2025