bwtwo.c revision 1.19
1 /* $NetBSD: bwtwo.c,v 1.19 2008/12/05 11:52:42 jdc 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 (at) 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 1.19 2008/12/05 11:52:42 jdc 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 "wsdisplay.h" 100 #if NWSDISPLAY > 0 101 #include <dev/wscons/wsconsio.h> 102 #include <dev/wsfont/wsfont.h> 103 #include <dev/rasops/rasops.h> 104 #include <dev/wscons/wsdisplay_vconsvar.h> 105 106 #include "opt_wsemul.h" 107 #endif 108 109 #include <dev/sun/btreg.h> 110 #include <dev/sun/bwtworeg.h> 111 #include <dev/sun/bwtwovar.h> 112 #include <dev/sun/pfourreg.h> 113 114 extern struct cfdriver bwtwo_cd; 115 116 dev_type_open(bwtwoopen); 117 dev_type_ioctl(bwtwoioctl); 118 dev_type_mmap(bwtwommap); 119 120 const struct cdevsw bwtwo_cdevsw = { 121 bwtwoopen, nullclose, noread, nowrite, bwtwoioctl, 122 nostop, notty, nopoll, bwtwommap, nokqfilter, 123 }; 124 125 /* XXX we do not handle frame buffer interrupts (do not know how) */ 126 static void bwtwounblank(struct device *); 127 128 /* frame buffer generic driver */ 129 static struct fbdriver bwtwofbdriver = { 130 bwtwounblank, bwtwoopen, nullclose, bwtwoioctl, nopoll, bwtwommap, 131 nokqfilter 132 }; 133 134 #if NWSDISPLAY > 0 135 #ifdef RASTERCONSOLE 136 #error RASTERCONSOLE and wsdisplay are mutually exclusive 137 #endif 138 139 struct wsscreen_descr bwtwo_defaultscreen = { 140 "std", 141 0, 0, /* will be filled in -- XXX shouldn't, it's global */ 142 NULL, /* textops */ 143 8, 16, /* font width/height */ 144 0, /* capabilities */ 145 NULL /* modecookie */ 146 }; 147 148 static int bwtwo_ioctl(void *, void *, u_long, void *, int, struct lwp *); 149 static paddr_t bwtwo_mmap(void *, void *, off_t, int); 150 static void bwtwo_init_screen(void *, struct vcons_screen *, int, long *); 151 152 struct wsdisplay_accessops bwtwo_accessops = { 153 bwtwo_ioctl, 154 bwtwo_mmap, 155 NULL, /* alloc_screen */ 156 NULL, /* free_screen */ 157 NULL, /* show_screen */ 158 NULL, /* load_font */ 159 NULL, /* pollc */ 160 NULL /* scroll */ 161 }; 162 163 const struct wsscreen_descr *_bwtwo_scrlist[] = { 164 &bwtwo_defaultscreen 165 }; 166 167 struct wsscreen_list bwtwo_screenlist = { 168 sizeof(_bwtwo_scrlist) / sizeof(struct wsscreen_descr *), 169 _bwtwo_scrlist 170 }; 171 172 173 static struct vcons_screen bw2_console_screen; 174 #endif /* NWSDISPLAY > 0 */ 175 176 int 177 bwtwo_pfour_probe(vaddr, arg) 178 void *vaddr; 179 void *arg; 180 { 181 struct cfdata *cf = arg; 182 183 switch (fb_pfour_id(vaddr)) { 184 case PFOUR_ID_BW: 185 case PFOUR_ID_COLOR8P1: /* bwtwo in ... */ 186 case PFOUR_ID_COLOR24: /* ...overlay plane */ 187 /* This is wrong; should be done in bwtwo_attach() */ 188 cf->cf_flags |= FB_PFOUR; 189 /* FALLTHROUGH */ 190 case PFOUR_NOTPFOUR: 191 return (1); 192 } 193 return (0); 194 } 195 196 void 197 bwtwoattach(sc, name, isconsole) 198 struct bwtwo_softc *sc; 199 const char *name; 200 int isconsole; 201 { 202 struct fbdevice *fb = &sc->sc_fb; 203 int isoverlay; 204 #if NWSDISPLAY > 0 205 struct wsemuldisplaydev_attach_args aa; 206 struct rasops_info *ri = &bw2_console_screen.scr_ri; 207 unsigned long defattr; 208 #endif 209 210 /* Fill in the remaining fbdevice values */ 211 fb->fb_driver = &bwtwofbdriver; 212 fb->fb_device = &sc->sc_dev; 213 fb->fb_type.fb_type = FBTYPE_SUN2BW; 214 fb->fb_type.fb_cmsize = 0; 215 fb->fb_type.fb_size = fb->fb_type.fb_height * fb->fb_linebytes; 216 printf(": %s, %d x %d", name, 217 fb->fb_type.fb_width, fb->fb_type.fb_height); 218 219 /* Are we an overlay bw2? */ 220 if ((fb->fb_flags & FB_PFOUR) == 0 || (sc->sc_ovtype == BWO_NONE)) 221 isoverlay = 0; 222 else 223 isoverlay = 1; 224 225 /* Insure video is enabled */ 226 sc->sc_set_video(sc, 1); 227 228 if (isconsole) { 229 printf(" (console)\n"); 230 #ifdef RASTERCONSOLE 231 /* 232 * XXX rcons doesn't seem to work properly on the overlay 233 * XXX plane. This is a temporary kludge until someone 234 * XXX fixes it. 235 */ 236 if (!isoverlay) 237 fbrcons_init(fb); 238 #endif 239 } else 240 printf("\n"); 241 242 if (isoverlay) { 243 const char *ovnam; 244 245 switch (sc->sc_ovtype) { 246 case BWO_CGFOUR: 247 ovnam = "cgfour"; 248 break; 249 250 case BWO_CGEIGHT: 251 ovnam = "cgeight"; 252 break; 253 254 default: 255 ovnam = "unknown"; 256 break; 257 } 258 printf("%s: %s overlay plane\n", device_xname(&sc->sc_dev), ovnam); 259 } 260 261 /* 262 * If we're on an overlay plane of a color framebuffer, 263 * then we don't force the issue in fb_attach() because 264 * we'd like the color framebuffer to actually be the 265 * "console framebuffer". We're only around to speed 266 * up rconsole. 267 */ 268 if (isoverlay) 269 fb_attach(fb, 0); 270 else 271 fb_attach(fb, isconsole); 272 273 #if NWSDISPLAY > 0 274 sc->sc_width = fb->fb_type.fb_width; 275 sc->sc_stride = fb->fb_type.fb_width/8; 276 sc->sc_height = fb->fb_type.fb_height; 277 278 /* setup rasops and so on for wsdisplay */ 279 sc->sc_mode = WSDISPLAYIO_MODE_EMUL; 280 281 vcons_init(&sc->vd, sc, &bwtwo_defaultscreen, &bwtwo_accessops); 282 sc->vd.init_screen = bwtwo_init_screen; 283 284 if(isconsole && !isoverlay) { 285 /* we mess with bw2_console_screen only once */ 286 vcons_init_screen(&sc->vd, &bw2_console_screen, 1, 287 &defattr); 288 bw2_console_screen.scr_flags |= VCONS_SCREEN_IS_STATIC; 289 290 bwtwo_defaultscreen.textops = &ri->ri_ops; 291 bwtwo_defaultscreen.capabilities = ri->ri_caps; 292 bwtwo_defaultscreen.nrows = ri->ri_rows; 293 bwtwo_defaultscreen.ncols = ri->ri_cols; 294 sc->vd.active = &bw2_console_screen; 295 wsdisplay_cnattach(&bwtwo_defaultscreen, ri, 0, 0, defattr); 296 } else { 297 /* 298 * we're not the console so we just clear the screen and don't 299 * set up any sort of text display 300 */ 301 if (bwtwo_defaultscreen.textops == NULL) { 302 /* 303 * ugly, but... 304 * we want the console settings to win, so we only 305 * touch anything when we find an untouched screen 306 * definition. In this case we fill it from fb to 307 * avoid problems in case no bwtwo is the console 308 */ 309 ri = &sc->sc_fb.fb_rinfo; 310 bwtwo_defaultscreen.textops = &ri->ri_ops; 311 bwtwo_defaultscreen.capabilities = ri->ri_caps; 312 bwtwo_defaultscreen.nrows = ri->ri_rows; 313 bwtwo_defaultscreen.ncols = ri->ri_cols; 314 } 315 } 316 317 aa.scrdata = &bwtwo_screenlist; 318 if (isoverlay) 319 aa.console = 0; 320 else 321 aa.console = isconsole; 322 aa.accessops = &bwtwo_accessops; 323 aa.accesscookie = &sc->vd; 324 config_found(&sc->sc_dev, &aa, wsemuldisplaydevprint); 325 #endif 326 327 } 328 329 int 330 bwtwoopen(dev, flags, mode, l) 331 dev_t dev; 332 int flags, mode; 333 struct lwp *l; 334 { 335 int unit = minor(dev); 336 337 if (device_lookup(&bwtwo_cd, unit) == NULL) 338 return (ENXIO); 339 340 return (0); 341 } 342 343 int 344 bwtwoioctl(dev, cmd, data, flags, l) 345 dev_t dev; 346 u_long cmd; 347 void *data; 348 int flags; 349 struct lwp *l; 350 { 351 struct bwtwo_softc *sc = device_lookup_private(&bwtwo_cd, minor(dev)); 352 353 switch (cmd) { 354 355 case FBIOGTYPE: 356 *(struct fbtype *)data = sc->sc_fb.fb_type; 357 break; 358 359 case FBIOGVIDEO: 360 *(int *)data = sc->sc_get_video(sc); 361 break; 362 363 case FBIOSVIDEO: 364 sc->sc_set_video(sc, (*(int *)data)); 365 break; 366 367 default: 368 return (ENOTTY); 369 } 370 return (0); 371 } 372 373 static void 374 bwtwounblank(dev) 375 struct device *dev; 376 { 377 struct bwtwo_softc *sc = device_private(dev); 378 379 sc->sc_set_video(sc, 1); 380 } 381 382 /* 383 * Return the address that would map the given device at the given 384 * offset, allowing for the given protection, or return -1 for error. 385 */ 386 paddr_t 387 bwtwommap(dev, off, prot) 388 dev_t dev; 389 off_t off; 390 int prot; 391 { 392 struct bwtwo_softc *sc = device_lookup_private(&bwtwo_cd, minor(dev)); 393 394 if (off & PGOFSET) 395 panic("bwtwommap"); 396 397 if (off >= sc->sc_fb.fb_type.fb_size) 398 return (-1); 399 400 return (bus_space_mmap(sc->sc_bustag, 401 sc->sc_paddr, sc->sc_pixeloffset + off, 402 prot, BUS_SPACE_MAP_LINEAR)); 403 } 404 405 #if NWSDISPLAY > 0 406 407 int 408 bwtwo_ioctl(void *v, void *vs, u_long cmd, void *data, int flag, 409 struct lwp *l) 410 { 411 /* we'll probably need to add more stuff here */ 412 struct vcons_data *vd = v; 413 struct bwtwo_softc *sc = vd->cookie; 414 struct wsdisplay_fbinfo *wdf; 415 struct rasops_info *ri = &sc->sc_fb.fb_rinfo; 416 struct vcons_screen *ms = sc->vd.active; 417 switch (cmd) { 418 case WSDISPLAYIO_GTYPE: 419 *(u_int *)data = WSDISPLAY_TYPE_GENFB; 420 return 0; 421 case WSDISPLAYIO_GINFO: 422 wdf = (void *)data; 423 wdf->height = ri->ri_height; 424 wdf->width = ri->ri_width; 425 wdf->depth = ri->ri_depth; 426 wdf->cmsize = 0; 427 return 0; 428 429 case WSDISPLAYIO_GETCMAP: 430 return EINVAL; 431 case WSDISPLAYIO_PUTCMAP: 432 return EINVAL; 433 434 case WSDISPLAYIO_SMODE: 435 { 436 int new_mode = *(int*)data; 437 if (new_mode != sc->sc_mode) 438 { 439 sc->sc_mode = new_mode; 440 if(new_mode == WSDISPLAYIO_MODE_EMUL) 441 { 442 vcons_redraw_screen(ms); 443 } 444 } 445 } 446 } 447 return EPASSTHROUGH; 448 } 449 450 paddr_t 451 bwtwo_mmap(void *v, void *vs, off_t offset, int prot) 452 { 453 /* I'm not at all sure this is the right thing to do */ 454 return bwtwommap(0, offset, prot); /* assume minor dev 0 for now */ 455 } 456 457 void 458 bwtwo_init_screen(void *cookie, struct vcons_screen *scr, 459 int existing, long *defattr) 460 { 461 struct bwtwo_softc *sc = cookie; 462 struct rasops_info *ri = &scr->scr_ri; 463 464 ri->ri_depth = 1; 465 ri->ri_width = sc->sc_width; 466 ri->ri_height = sc->sc_height; 467 ri->ri_stride = sc->sc_stride; 468 ri->ri_flg = RI_CENTER; 469 470 ri->ri_bits = sc->sc_fb.fb_pixels; 471 472 rasops_init(ri, sc->sc_height/8, sc->sc_width/8); 473 ri->ri_caps = 0; 474 rasops_reconfig(ri, sc->sc_height / ri->ri_font->fontheight, 475 sc->sc_width / ri->ri_font->fontwidth); 476 477 ri->ri_hw = scr; 478 } 479 480 #endif /* NWSDISPLAY > 0 */ 481
Indexes created Wed Sep 24 02:09:48 GMT 2025