1 /* $NetBSD: bwtwo.c,v 1.30 2012/01/11 16:10:13 macallan 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. 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 * @(#)bwtwo.c 8.1 (Berkeley) 6/11/93 70 */ 71 72 /* 73 * black & white display (bwtwo) driver. 74 * 75 * Does not handle interrupts, even though they can occur. 76 * 77 * P4 and overlay plane support by Jason R. Thorpe <thorpej@NetBSD.org>. 78 * Overlay plane handling hints and ideas provided by Brad Spencer. 79 */ 80 81 #include <sys/cdefs.h> 82 __KERNEL_RCSID(0, "$NetBSD: bwtwo.c,v 1.30 2012/01/11 16:10:13 macallan Exp $"); 83 84 #include <sys/param.h> 85 #include <sys/systm.h> 86 #include <sys/device.h> 87 #include <sys/ioctl.h> 88 #include <sys/malloc.h> 89 #include <sys/mman.h> 90 #include <sys/tty.h> 91 #include <sys/conf.h> 92 93 #include <machine/autoconf.h> 94 #include <machine/eeprom.h> 95 96 #include <dev/sun/fbio.h> 97 #include <dev/sun/fbvar.h> 98 99 #include <dev/sun/btreg.h> 100 #include <dev/sun/bwtworeg.h> 101 #include <dev/sun/bwtwovar.h> 102 #include <dev/sun/pfourreg.h> 103 104 #if NWSDISPLAY > 0 105 #include <dev/wscons/wsconsio.h> 106 #include <dev/wsfont/wsfont.h> 107 #include <dev/rasops/rasops.h> 108 109 #include "opt_wsemul.h" 110 #endif 111 112 #include "ioconf.h" 113 114 dev_type_open(bwtwoopen); 115 dev_type_ioctl(bwtwoioctl); 116 dev_type_mmap(bwtwommap); 117 118 const struct cdevsw bwtwo_cdevsw = { 119 bwtwoopen, nullclose, noread, nowrite, bwtwoioctl, 120 nostop, notty, nopoll, bwtwommap, nokqfilter, D_OTHER 121 }; 122 123 /* XXX we do not handle frame buffer interrupts (do not know how) */ 124 static void bwtwounblank(device_t); 125 126 /* frame buffer generic driver */ 127 static struct fbdriver bwtwofbdriver = { 128 bwtwounblank, bwtwoopen, nullclose, bwtwoioctl, nopoll, bwtwommap, 129 nokqfilter 130 }; 131 132 #if NWSDISPLAY > 0 133 #ifdef RASTERCONSOLE 134 #error RASTERCONSOLE and wsdisplay are mutually exclusive 135 #endif 136 137 struct wsscreen_descr bwtwo_defaultscreen = { 138 "std", 139 0, 0, /* will be filled in -- XXX shouldn't, it's global */ 140 NULL, /* textops */ 141 8, 16, /* font width/height */ 142 0, /* capabilities */ 143 NULL /* modecookie */ 144 }; 145 146 static int bwtwo_ioctl(void *, void *, u_long, void *, int, struct lwp *); 147 static paddr_t bwtwo_mmap(void *, void *, off_t, int); 148 static void bwtwo_init_screen(void *, struct vcons_screen *, int, long *); 149 150 struct wsdisplay_accessops bwtwo_accessops = { 151 bwtwo_ioctl, 152 bwtwo_mmap, 153 NULL, /* alloc_screen */ 154 NULL, /* free_screen */ 155 NULL, /* show_screen */ 156 NULL, /* load_font */ 157 NULL, /* pollc */ 158 NULL /* scroll */ 159 }; 160 161 const struct wsscreen_descr *_bwtwo_scrlist[] = { 162 &bwtwo_defaultscreen 163 }; 164 165 struct wsscreen_list bwtwo_screenlist = { 166 sizeof(_bwtwo_scrlist) / sizeof(struct wsscreen_descr *), 167 _bwtwo_scrlist 168 }; 169 170 171 static struct vcons_screen bw2_console_screen; 172 #endif /* NWSDISPLAY > 0 */ 173 174 int 175 bwtwo_pfour_probe(void *vaddr, void *arg) 176 { 177 cfdata_t cf = arg; 178 179 switch (fb_pfour_id(vaddr)) { 180 case PFOUR_ID_BW: 181 case PFOUR_ID_COLOR8P1: /* bwtwo in ... */ 182 case PFOUR_ID_COLOR24: /* ...overlay plane */ 183 /* This is wrong; should be done in bwtwo_attach() */ 184 cf->cf_flags |= FB_PFOUR; 185 /* FALLTHROUGH */ 186 case PFOUR_NOTPFOUR: 187 return (1); 188 } 189 return (0); 190 } 191 192 void 193 bwtwoattach(struct bwtwo_softc *sc, const char *name, int isconsole) 194 { 195 struct fbdevice *fb = &sc->sc_fb; 196 int isoverlay; 197 #if NWSDISPLAY > 0 198 struct wsemuldisplaydev_attach_args aa; 199 struct rasops_info *ri = &bw2_console_screen.scr_ri; 200 unsigned long defattr; 201 #endif 202 203 /* Fill in the remaining fbdevice values */ 204 fb->fb_driver = &bwtwofbdriver; 205 fb->fb_device = sc->sc_dev; 206 fb->fb_type.fb_type = FBTYPE_SUN2BW; 207 fb->fb_type.fb_cmsize = 0; 208 fb->fb_type.fb_size = fb->fb_type.fb_height * fb->fb_linebytes; 209 printf(": %s, %d x %d", name, 210 fb->fb_type.fb_width, fb->fb_type.fb_height); 211 212 /* Are we an overlay bw2? */ 213 if ((fb->fb_flags & FB_PFOUR) == 0 || (sc->sc_ovtype == BWO_NONE)) 214 isoverlay = 0; 215 else 216 isoverlay = 1; 217 218 /* Insure video is enabled */ 219 sc->sc_set_video(sc, 1); 220 221 if (isconsole) { 222 printf(" (console)\n"); 223 #ifdef RASTERCONSOLE 224 /* 225 * XXX rcons doesn't seem to work properly on the overlay 226 * XXX plane. This is a temporary kludge until someone 227 * XXX fixes it. 228 */ 229 if (!isoverlay) 230 fbrcons_init(fb); 231 #endif 232 } else 233 printf("\n"); 234 235 if (isoverlay) { 236 const char *ovnam; 237 238 switch (sc->sc_ovtype) { 239 case BWO_CGFOUR: 240 ovnam = "cgfour"; 241 break; 242 243 case BWO_CGEIGHT: 244 ovnam = "cgeight"; 245 break; 246 247 default: 248 ovnam = "unknown"; 249 break; 250 } 251 printf("%s: %s overlay plane\n", 252 device_xname(sc->sc_dev), ovnam); 253 } 254 255 /* 256 * If we're on an overlay plane of a color framebuffer, 257 * then we don't force the issue in fb_attach() because 258 * we'd like the color framebuffer to actually be the 259 * "console framebuffer". We're only around to speed 260 * up rconsole. 261 */ 262 if (isoverlay) 263 fb_attach(fb, 0); 264 else 265 fb_attach(fb, isconsole); 266 267 #if NWSDISPLAY > 0 268 sc->sc_width = fb->fb_type.fb_width; 269 sc->sc_stride = fb->fb_type.fb_width/8; 270 sc->sc_height = fb->fb_type.fb_height; 271 272 /* setup rasops and so on for wsdisplay */ 273 sc->sc_mode = WSDISPLAYIO_MODE_EMUL; 274 275 vcons_init(&sc->vd, sc, &bwtwo_defaultscreen, &bwtwo_accessops); 276 sc->vd.init_screen = bwtwo_init_screen; 277 278 if(isconsole && !isoverlay) { 279 /* we mess with bw2_console_screen only once */ 280 vcons_init_screen(&sc->vd, &bw2_console_screen, 1, 281 &defattr); 282 bw2_console_screen.scr_flags |= VCONS_SCREEN_IS_STATIC; 283 284 bwtwo_defaultscreen.textops = &ri->ri_ops; 285 bwtwo_defaultscreen.capabilities = ri->ri_caps; 286 bwtwo_defaultscreen.nrows = ri->ri_rows; 287 bwtwo_defaultscreen.ncols = ri->ri_cols; 288 sc->vd.active = &bw2_console_screen; 289 wsdisplay_cnattach(&bwtwo_defaultscreen, ri, 0, 0, defattr); 290 } else { 291 /* 292 * we're not the console so we just clear the screen and don't 293 * set up any sort of text display 294 */ 295 if (bwtwo_defaultscreen.textops == NULL) { 296 /* 297 * ugly, but... 298 * we want the console settings to win, so we only 299 * touch anything when we find an untouched screen 300 * definition. In this case we fill it from fb to 301 * avoid problems in case no bwtwo is the console 302 */ 303 ri = &sc->sc_fb.fb_rinfo; 304 bwtwo_defaultscreen.textops = &ri->ri_ops; 305 bwtwo_defaultscreen.capabilities = ri->ri_caps; 306 bwtwo_defaultscreen.nrows = ri->ri_rows; 307 bwtwo_defaultscreen.ncols = ri->ri_cols; 308 } 309 } 310 311 aa.scrdata = &bwtwo_screenlist; 312 if (isoverlay) 313 aa.console = 0; 314 else 315 aa.console = isconsole; 316 aa.accessops = &bwtwo_accessops; 317 aa.accesscookie = &sc->vd; 318 config_found(sc->sc_dev, &aa, wsemuldisplaydevprint); 319 #endif 320 321 } 322 323 int 324 bwtwoopen(dev_t dev, int flags, int mode, struct lwp *l) 325 { 326 int unit = minor(dev); 327 328 if (device_lookup(&bwtwo_cd, unit) == NULL) 329 return (ENXIO); 330 331 return (0); 332 } 333 334 int 335 bwtwoioctl(dev_t dev, u_long cmd, void *data, int flags, struct lwp *l) 336 { 337 struct bwtwo_softc *sc = device_lookup_private(&bwtwo_cd, minor(dev)); 338 339 switch (cmd) { 340 341 case FBIOGTYPE: 342 *(struct fbtype *)data = sc->sc_fb.fb_type; 343 break; 344 345 case FBIOGVIDEO: 346 *(int *)data = sc->sc_get_video(sc); 347 break; 348 349 case FBIOSVIDEO: 350 sc->sc_set_video(sc, (*(int *)data)); 351 break; 352 353 default: 354 return (ENOTTY); 355 } 356 return (0); 357 } 358 359 static void 360 bwtwounblank(device_t dev) 361 { 362 struct bwtwo_softc *sc = device_private(dev); 363 364 sc->sc_set_video(sc, 1); 365 } 366 367 /* 368 * Return the address that would map the given device at the given 369 * offset, allowing for the given protection, or return -1 for error. 370 */ 371 paddr_t 372 bwtwommap(dev_t dev, off_t off, int prot) 373 { 374 struct bwtwo_softc *sc = device_lookup_private(&bwtwo_cd, minor(dev)); 375 376 if (off & PGOFSET) 377 panic("bwtwommap"); 378 379 if (off >= sc->sc_fb.fb_type.fb_size) 380 return (-1); 381 382 return (bus_space_mmap(sc->sc_bustag, 383 sc->sc_paddr, sc->sc_pixeloffset + off, 384 prot, BUS_SPACE_MAP_LINEAR)); 385 } 386 387 #if NWSDISPLAY > 0 388 389 int 390 bwtwo_ioctl(void *v, void *vs, u_long cmd, void *data, int flag, 391 struct lwp *l) 392 { 393 /* we'll probably need to add more stuff here */ 394 struct vcons_data *vd = v; 395 struct bwtwo_softc *sc = vd->cookie; 396 struct wsdisplay_fbinfo *wdf; 397 struct rasops_info *ri = &sc->sc_fb.fb_rinfo; 398 struct vcons_screen *ms = sc->vd.active; 399 switch (cmd) { 400 case WSDISPLAYIO_GTYPE: 401 *(u_int *)data = WSDISPLAY_TYPE_GENFB; 402 return 0; 403 case WSDISPLAYIO_GINFO: 404 wdf = (void *)data; 405 wdf->height = ri->ri_height; 406 wdf->width = ri->ri_width; 407 wdf->depth = ri->ri_depth; 408 wdf->cmsize = 0; 409 return 0; 410 411 case WSDISPLAYIO_GETCMAP: 412 return EINVAL; 413 case WSDISPLAYIO_PUTCMAP: 414 return EINVAL; 415 416 case WSDISPLAYIO_SMODE: 417 { 418 int new_mode = *(int*)data; 419 if (new_mode != sc->sc_mode) 420 { 421 sc->sc_mode = new_mode; 422 if(new_mode == WSDISPLAYIO_MODE_EMUL) 423 { 424 vcons_redraw_screen(ms); 425 } 426 } 427 } 428 } 429 return EPASSTHROUGH; 430 } 431 432 paddr_t 433 bwtwo_mmap(void *v, void *vs, off_t offset, int prot) 434 { 435 /* I'm not at all sure this is the right thing to do */ 436 return bwtwommap(0, offset, prot); /* assume minor dev 0 for now */ 437 } 438 439 void 440 bwtwo_init_screen(void *cookie, struct vcons_screen *scr, 441 int existing, long *defattr) 442 { 443 struct bwtwo_softc *sc = cookie; 444 struct rasops_info *ri = &scr->scr_ri; 445 446 ri->ri_depth = 1; 447 ri->ri_width = sc->sc_width; 448 ri->ri_height = sc->sc_height; 449 ri->ri_stride = sc->sc_stride; 450 ri->ri_flg = RI_CENTER; 451 452 ri->ri_bits = sc->sc_fb.fb_pixels; 453 454 memset(sc->sc_fb.fb_pixels, (*defattr >> 16) & 0xff, 455 sc->sc_stride * sc->sc_height); 456 rasops_init(ri, 0, 0); 457 ri->ri_caps = 0; 458 rasops_reconfig(ri, sc->sc_height / ri->ri_font->fontheight, 459 sc->sc_width / ri->ri_font->fontwidth); 460 461 ri->ri_hw = scr; 462 } 463 464 #endif /* NWSDISPLAY > 0 */ 465