sys/dev/sun/bwtwo.c

   1 /*      $NetBSD: bwtwo.c,v 1.27 2009/09/19 04:52:44 tsutsui 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 1.27 2009/09/19 04:52:44 tsutsui 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,
 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, sc->sc_height/8, sc->sc_width/8);
 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 */