bwtwo.c revision 1.24
1 /* $NetBSD: bwtwo.c,v 1.24 2009/03/14 21:04:23 dsl 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 1.24 2009/03/14 21:04:23 dsl 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 extern struct cfdriver bwtwo_cd; 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, 121 }; 122 123 /* XXX we do not handle frame buffer interrupts (do not know how) */ 124 static void bwtwounblank(struct device *); 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 struct cfdata *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", device_xname(&sc->sc_dev), ovnam); 252 } 253 254 /* 255 * If we're on an overlay plane of a color framebuffer, 256 * then we don't force the issue in fb_attach() because 257 * we'd like the color framebuffer to actually be the 258 * "console framebuffer". We're only around to speed 259 * up rconsole. 260 */ 261 if (isoverlay) 262 fb_attach(fb, 0); 263 else 264 fb_attach(fb, isconsole); 265 266 #if NWSDISPLAY > 0 267 sc->sc_width = fb->fb_type.fb_width; 268 sc->sc_stride = fb->fb_type.fb_width/8; 269 sc->sc_height = fb->fb_type.fb_height; 270 271 /* setup rasops and so on for wsdisplay */ 272 sc->sc_mode = WSDISPLAYIO_MODE_EMUL; 273 274 vcons_init(&sc->vd, sc, &bwtwo_defaultscreen, &bwtwo_accessops); 275 sc->vd.init_screen = bwtwo_init_screen; 276 277 if(isconsole && !isoverlay) { 278 /* we mess with bw2_console_screen only once */ 279 vcons_init_screen(&sc->vd, &bw2_console_screen, 1, 280 &defattr); 281 bw2_console_screen.scr_flags |= VCONS_SCREEN_IS_STATIC; 282 283 bwtwo_defaultscreen.textops = &ri->ri_ops; 284 bwtwo_defaultscreen.capabilities = ri->ri_caps; 285 bwtwo_defaultscreen.nrows = ri->ri_rows; 286 bwtwo_defaultscreen.ncols = ri->ri_cols; 287 sc->vd.active = &bw2_console_screen; 288 wsdisplay_cnattach(&bwtwo_defaultscreen, ri, 0, 0, defattr); 289 } else { 290 /* 291 * we're not the console so we just clear the screen and don't 292 * set up any sort of text display 293 */ 294 if (bwtwo_defaultscreen.textops == NULL) { 295 /* 296 * ugly, but... 297 * we want the console settings to win, so we only 298 * touch anything when we find an untouched screen 299 * definition. In this case we fill it from fb to 300 * avoid problems in case no bwtwo is the console 301 */ 302 ri = &sc->sc_fb.fb_rinfo; 303 bwtwo_defaultscreen.textops = &ri->ri_ops; 304 bwtwo_defaultscreen.capabilities = ri->ri_caps; 305 bwtwo_defaultscreen.nrows = ri->ri_rows; 306 bwtwo_defaultscreen.ncols = ri->ri_cols; 307 } 308 } 309 310 aa.scrdata = &bwtwo_screenlist; 311 if (isoverlay) 312 aa.console = 0; 313 else 314 aa.console = isconsole; 315 aa.accessops = &bwtwo_accessops; 316 aa.accesscookie = &sc->vd; 317 config_found(&sc->sc_dev, &aa, wsemuldisplaydevprint); 318 #endif 319 320 } 321 322 int 323 bwtwoopen(dev_t dev, int flags, int mode, struct lwp *l) 324 { 325 int unit = minor(dev); 326 327 if (device_lookup(&bwtwo_cd, unit) == NULL) 328 return (ENXIO); 329 330 return (0); 331 } 332 333 int 334 bwtwoioctl(dev_t dev, u_long cmd, void *data, int flags, struct lwp *l) 335 { 336 struct bwtwo_softc *sc = device_lookup_private(&bwtwo_cd, minor(dev)); 337 338 switch (cmd) { 339 340 case FBIOGTYPE: 341 *(struct fbtype *)data = sc->sc_fb.fb_type; 342 break; 343 344 case FBIOGVIDEO: 345 *(int *)data = sc->sc_get_video(sc); 346 break; 347 348 case FBIOSVIDEO: 349 sc->sc_set_video(sc, (*(int *)data)); 350 break; 351 352 default: 353 return (ENOTTY); 354 } 355 return (0); 356 } 357 358 static void 359 bwtwounblank(struct device *dev) 360 { 361 struct bwtwo_softc *sc = device_private(dev); 362 363 sc->sc_set_video(sc, 1); 364 } 365 366 /* 367 * Return the address that would map the given device at the given 368 * offset, allowing for the given protection, or return -1 for error. 369 */ 370 paddr_t 371 bwtwommap(dev_t dev, off_t off, int prot) 372 { 373 struct bwtwo_softc *sc = device_lookup_private(&bwtwo_cd, minor(dev)); 374 375 if (off & PGOFSET) 376 panic("bwtwommap"); 377 378 if (off >= sc->sc_fb.fb_type.fb_size) 379 return (-1); 380 381 return (bus_space_mmap(sc->sc_bustag, 382 sc->sc_paddr, sc->sc_pixeloffset + off, 383 prot, BUS_SPACE_MAP_LINEAR)); 384 } 385 386 #if NWSDISPLAY > 0 387 388 int 389 bwtwo_ioctl(void *v, void *vs, u_long cmd, void *data, int flag, 390 struct lwp *l) 391 { 392 /* we'll probably need to add more stuff here */ 393 struct vcons_data *vd = v; 394 struct bwtwo_softc *sc = vd->cookie; 395 struct wsdisplay_fbinfo *wdf; 396 struct rasops_info *ri = &sc->sc_fb.fb_rinfo; 397 struct vcons_screen *ms = sc->vd.active; 398 switch (cmd) { 399 case WSDISPLAYIO_GTYPE: 400 *(u_int *)data = WSDISPLAY_TYPE_GENFB; 401 return 0; 402 case WSDISPLAYIO_GINFO: 403 wdf = (void *)data; 404 wdf->height = ri->ri_height; 405 wdf->width = ri->ri_width; 406 wdf->depth = ri->ri_depth; 407 wdf->cmsize = 0; 408 return 0; 409 410 case WSDISPLAYIO_GETCMAP: 411 return EINVAL; 412 case WSDISPLAYIO_PUTCMAP: 413 return EINVAL; 414 415 case WSDISPLAYIO_SMODE: 416 { 417 int new_mode = *(int*)data; 418 if (new_mode != sc->sc_mode) 419 { 420 sc->sc_mode = new_mode; 421 if(new_mode == WSDISPLAYIO_MODE_EMUL) 422 { 423 vcons_redraw_screen(ms); 424 } 425 } 426 } 427 } 428 return EPASSTHROUGH; 429 } 430 431 paddr_t 432 bwtwo_mmap(void *v, void *vs, off_t offset, int prot) 433 { 434 /* I'm not at all sure this is the right thing to do */ 435 return bwtwommap(0, offset, prot); /* assume minor dev 0 for now */ 436 } 437 438 void 439 bwtwo_init_screen(void *cookie, struct vcons_screen *scr, 440 int existing, long *defattr) 441 { 442 struct bwtwo_softc *sc = cookie; 443 struct rasops_info *ri = &scr->scr_ri; 444 445 ri->ri_depth = 1; 446 ri->ri_width = sc->sc_width; 447 ri->ri_height = sc->sc_height; 448 ri->ri_stride = sc->sc_stride; 449 ri->ri_flg = RI_CENTER; 450 451 ri->ri_bits = sc->sc_fb.fb_pixels; 452 453 memset(sc->sc_fb.fb_pixels, (*defattr >> 16) & 0xff, 454 sc->sc_stride * sc->sc_height); 455 rasops_init(ri, sc->sc_height/8, sc->sc_width/8); 456 ri->ri_caps = 0; 457 rasops_reconfig(ri, sc->sc_height / ri->ri_font->fontheight, 458 sc->sc_width / ri->ri_font->fontwidth); 459 460 ri->ri_hw = scr; 461 } 462 463 #endif /* NWSDISPLAY > 0 */ 464
Indexes created Wed Sep 24 05:09:52 GMT 2025