lunafb.c revision 1.2
1 /* $NetBSD: lunafb.c,v 1.2 2000/01/06 00:19:10 nisimura Exp $ */ 2 3 /*- 4 * Copyright (c) 2000 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Tohru Nishimura. 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 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include <sys/cdefs.h> /* RCS ID & Copyright macro defns */ 40 41 __KERNEL_RCSID(0, "$NetBSD: lunafb.c,v 1.2 2000/01/06 00:19:10 nisimura Exp $"); 42 43 #include <sys/param.h> 44 #include <sys/systm.h> 45 #include <sys/conf.h> 46 #include <sys/device.h> 47 #include <sys/ioctl.h> 48 #include <sys/malloc.h> 49 #include <sys/mman.h> 50 #include <sys/proc.h> 51 #include <sys/tty.h> 52 #include <sys/errno.h> 53 #include <sys/buf.h> 54 #include <vm/vm.h> 55 #include <uvm/uvm_extern.h> 56 57 #include <dev/rcons/raster.h> 58 #include <dev/wscons/wsconsio.h> 59 #include <dev/wscons/wscons_raster.h> 60 #include <dev/wscons/wsdisplayvar.h> 61 62 #include <machine/cpu.h> 63 #include <machine/autoconf.h> 64 65 struct bt454 { 66 u_int8_t bt_addr; /* map address register */ 67 u_int8_t bt_cmap; /* colormap data register */ 68 }; 69 70 struct bt458 { 71 u_int8_t bt_addr; /* map address register */ 72 unsigned :24; 73 u_int8_t bt_cmap; /* colormap data register */ 74 unsigned :24; 75 u_int8_t bt_ctrl; /* control register */ 76 unsigned :24; 77 u_int8_t bt_omap; /* overlay (cursor) map register */ 78 unsigned :24; 79 }; 80 81 #define OMFB_RFCNT 0xB1000000 /* video h-origin/v-origin */ 82 #define OMFB_PLANEMASK 0xB1040000 /* planemask register */ 83 #define OMFB_FB_WADDR 0xB1080008 /* common plane */ 84 #define OMFB_FB_RADDR 0xB10C0008 /* plane #0 */ 85 #define OMFB_ROPFUNC 0xB12C0000 /* ROP function code */ 86 #define OMFB_RAMDAC 0xC1100000 /* Bt454/Bt458 RAMDAC */ 87 #define OMFB_SIZE (0xB1300000 - 0xB1080000 + NBPG) 88 89 struct om_hwdevconfig { 90 int dc_wid; /* width of frame buffer */ 91 int dc_ht; /* height of frame buffer */ 92 int dc_depth; /* depth, bits per pixel */ 93 int dc_rowbytes; /* bytes in a FB scan line */ 94 int dc_cmsize; /* colormap size */ 95 vaddr_t dc_videobase; /* base of flat frame buffer */ 96 struct raster dc_raster; /* raster description */ 97 struct rcons dc_rcons; /* raster blitter control info */ 98 }; 99 100 struct hwcmap { 101 #define CMAP_SIZE 256 102 u_int8_t r[CMAP_SIZE]; 103 u_int8_t g[CMAP_SIZE]; 104 u_int8_t b[CMAP_SIZE]; 105 }; 106 107 struct omfb_softc { 108 struct device sc_dev; /* base device */ 109 struct om_hwdevconfig *sc_dc; /* device configuration */ 110 struct hwcmap sc_cmap; /* software copy of colormap */ 111 int nscreens; 112 }; 113 114 static int omgetcmap __P((struct omfb_softc *, struct wsdisplay_cmap *)); 115 static int omsetcmap __P((struct omfb_softc *, struct wsdisplay_cmap *)); 116 117 static struct om_hwdevconfig omfb_console_dc; 118 static void omfb_getdevconfig __P((paddr_t, struct om_hwdevconfig *)); 119 120 extern struct wsdisplay_emulops omfb_emulops; 121 122 static struct wsscreen_descr omfb_stdscreen = { 123 "std", 0, 0, 124 &omfb_emulops, 125 0, 0, 126 0 127 }; 128 129 static const struct wsscreen_descr *_omfb_scrlist[] = { 130 &omfb_stdscreen, 131 }; 132 133 static const struct wsscreen_list omfb_screenlist = { 134 sizeof(_omfb_scrlist) / sizeof(struct wsscreen_descr *), _omfb_scrlist 135 }; 136 137 static int omfbioctl __P((void *, u_long, caddr_t, int, struct proc *)); 138 static int omfbmmap __P((void *, off_t, int)); 139 static int omfb_alloc_screen __P((void *, const struct wsscreen_descr *, 140 void **, int *, int *, long *)); 141 static void omfb_free_screen __P((void *, void *)); 142 static int omfb_show_screen __P((void *, void *, int, 143 void (*) (void *, int, int), void *)); 144 145 static const struct wsdisplay_accessops omfb_accessops = { 146 omfbioctl, 147 omfbmmap, 148 omfb_alloc_screen, 149 omfb_free_screen, 150 omfb_show_screen, 151 0 /* load_font */ 152 }; 153 154 static int omfbmatch __P((struct device *, struct cfdata *, void *)); 155 static void omfbattach __P((struct device *, struct device *, void *)); 156 157 const struct cfattach fb_ca = { 158 sizeof(struct omfb_softc), omfbmatch, omfbattach 159 }; 160 extern struct cfdriver fb_cd; 161 162 extern int hwplanemask; /* hardware planemask; retrieved at boot */ 163 164 static int omfb_console; 165 int omfb_cnattach __P((void)); 166 167 static int 168 omfbmatch(parent, cf, aux) 169 struct device *parent; 170 struct cfdata *cf; 171 void *aux; 172 { 173 struct mainbus_attach_args *ma = aux; 174 175 if (strcmp(ma->ma_name, fb_cd.cd_name)) 176 return (0); 177 if (badaddr((caddr_t)ma->ma_addr, 4)) 178 return (0); 179 return (1); 180 } 181 182 static void 183 omfbattach(parent, self, args) 184 struct device *parent, *self; 185 void *args; 186 { 187 struct omfb_softc *sc = (struct omfb_softc *)self; 188 struct wsemuldisplaydev_attach_args waa; 189 190 if (omfb_console) { 191 sc->sc_dc = &omfb_console_dc; 192 sc->nscreens = 1; 193 } 194 else { 195 sc->sc_dc = (struct om_hwdevconfig *) 196 malloc(sizeof(struct om_hwdevconfig), M_DEVBUF, M_WAITOK); 197 omfb_getdevconfig(OMFB_FB_WADDR, sc->sc_dc); 198 } 199 printf(": %d x %d, %dbpp\n", sc->sc_dc->dc_wid, sc->sc_dc->dc_ht, 200 sc->sc_dc->dc_depth); 201 202 #if 0 /* WHITE on BLACK */ 203 cm = &sc->sc_cmap; 204 memset(cm, 255, sizeof(struct hwcmap)); 205 cm->r[0] = cm->g[0] = cm->b[0] = 0; 206 #endif 207 waa.console = omfb_console; 208 waa.scrdata = &omfb_screenlist; 209 waa.accessops = &omfb_accessops; 210 waa.accesscookie = sc; 211 212 config_found(self, &waa, wsemuldisplaydevprint); 213 } 214 215 /* EXPORT */ int 216 omfb_cnattach() 217 { 218 struct om_hwdevconfig *dc = &omfb_console_dc; 219 long defattr; 220 221 omfb_getdevconfig(OMFB_FB_WADDR, dc); 222 (*omfb_emulops.alloc_attr)(&dc->dc_rcons, 0, 0, 0, &defattr); 223 wsdisplay_cnattach(&omfb_stdscreen, &dc->dc_rcons, 0, 0, defattr); 224 omfb_console = 1; 225 return (0); 226 } 227 228 static int 229 omfbioctl(v, cmd, data, flag, p) 230 void *v; 231 u_long cmd; 232 caddr_t data; 233 int flag; 234 struct proc *p; 235 { 236 struct omfb_softc *sc = v; 237 struct om_hwdevconfig *dc = sc->sc_dc; 238 239 switch (cmd) { 240 case WSDISPLAYIO_GTYPE: 241 *(u_int *)data = 0x19990927; 242 return (0); 243 244 case WSDISPLAYIO_GINFO: 245 #define wsd_fbip ((struct wsdisplay_fbinfo *)data) 246 wsd_fbip->height = dc->dc_ht; 247 wsd_fbip->width = dc->dc_wid; 248 wsd_fbip->depth = dc->dc_depth; 249 wsd_fbip->cmsize = dc->dc_cmsize; 250 #undef fbt 251 return (0); 252 253 case WSDISPLAYIO_GETCMAP: 254 return omgetcmap(sc, (struct wsdisplay_cmap *)data); 255 256 case WSDISPLAYIO_PUTCMAP: 257 return omsetcmap(sc, (struct wsdisplay_cmap *)data); 258 259 case WSDISPLAYIO_SVIDEO: 260 case WSDISPLAYIO_GVIDEO: 261 case WSDISPLAYIO_GCURPOS: 262 case WSDISPLAYIO_SCURPOS: 263 case WSDISPLAYIO_GCURMAX: 264 case WSDISPLAYIO_GCURSOR: 265 case WSDISPLAYIO_SCURSOR: 266 break; 267 } 268 return (ENOTTY); 269 } 270 271 /* 272 * Return the address that would map the given device at the given 273 * offset, allowing for the given protection, or return -1 for error. 274 */ 275 static int 276 omfbmmap(v, offset, prot) 277 void *v; 278 off_t offset; 279 int prot; 280 { 281 struct omfb_softc *sc = v; 282 283 if (offset >= OMFB_SIZE || offset < 0) 284 return (-1); 285 return m68k_btop(m68k_trunc_page(sc->sc_dc->dc_videobase) + offset); 286 } 287 288 static int 289 omgetcmap(sc, p) 290 struct omfb_softc *sc; 291 struct wsdisplay_cmap *p; 292 { 293 u_int index = p->index, count = p->count; 294 int cmsize; 295 296 cmsize = sc->sc_dc->dc_cmsize; 297 if (index >= cmsize || (index + count) > cmsize) 298 return (EINVAL); 299 300 if (!uvm_useracc(p->red, count, B_WRITE) || 301 !uvm_useracc(p->green, count, B_WRITE) || 302 !uvm_useracc(p->blue, count, B_WRITE)) 303 return (EFAULT); 304 305 copyout(&sc->sc_cmap.r[index], p->red, count); 306 copyout(&sc->sc_cmap.g[index], p->green, count); 307 copyout(&sc->sc_cmap.b[index], p->blue, count); 308 309 return (0); 310 } 311 312 static int 313 omsetcmap(sc, p) 314 struct omfb_softc *sc; 315 struct wsdisplay_cmap *p; 316 { 317 u_int index = p->index, count = p->count; 318 int cmsize, i; 319 320 cmsize = sc->sc_dc->dc_cmsize; 321 if (index >= cmsize || (index + count) > cmsize) 322 return (EINVAL); 323 324 if (!uvm_useracc(p->red, count, B_READ) || 325 !uvm_useracc(p->green, count, B_READ) || 326 !uvm_useracc(p->blue, count, B_READ)) 327 return (EFAULT); 328 329 copyin(p->red, &sc->sc_cmap.r[index], count); 330 copyin(p->green, &sc->sc_cmap.g[index], count); 331 copyin(p->blue, &sc->sc_cmap.b[index], count); 332 333 if (hwplanemask == 0x0f) { 334 struct bt454 *odac = (struct bt454 *)OMFB_RAMDAC; 335 odac->bt_addr = index; 336 for (i = index; i < count; i++) { 337 odac->bt_cmap = sc->sc_cmap.r[i]; 338 odac->bt_cmap = sc->sc_cmap.g[i]; 339 odac->bt_cmap = sc->sc_cmap.b[i]; 340 } 341 } 342 else if (hwplanemask == 0xff) { 343 struct bt458 *ndac = (struct bt458 *)OMFB_RAMDAC; 344 ndac->bt_addr = index; 345 for (i = index; i < count; i++) { 346 ndac->bt_cmap = sc->sc_cmap.r[i]; 347 ndac->bt_cmap = sc->sc_cmap.g[i]; 348 ndac->bt_cmap = sc->sc_cmap.b[i]; 349 } 350 } 351 return (0); 352 } 353 354 static void 355 omfb_getdevconfig(paddr, dc) 356 paddr_t paddr; 357 struct om_hwdevconfig *dc; 358 { 359 int bpp, i; 360 struct raster *rap; 361 struct rcons *rcp; 362 struct { short h, v; } *rfcnt; 363 364 switch (hwplanemask) { 365 case 0xff: 366 bpp = 8; /* XXX check monochrome bit in DIPSW */ 367 break; 368 default: 369 case 0x0f: 370 bpp = 4; /* XXX check monochrome bit in DIPSW */ 371 break; 372 case 1: 373 bpp = 1; 374 break; 375 } 376 dc->dc_wid = 1280; 377 dc->dc_ht = 1024; 378 dc->dc_depth = bpp; 379 dc->dc_rowbytes = 2048 / 8; 380 dc->dc_cmsize = (bpp == 1) ? 0 : 1 << bpp; 381 dc->dc_videobase = paddr; 382 383 #if 0 /* WHITE on BLACK */ 384 if (hwplanemask == 0x0f) { 385 /* XXX Need Bt454 initialization */ 386 struct bt454 *odac = (struct bt454 *)OMFB_RAMDAC; 387 odac->bt_addr = 0; 388 odac->bt_cmap = 0; 389 odac->bt_cmap = 0; 390 odac->bt_cmap = 0; 391 for (i = 1; i < 16; i++) { 392 odac->bt_cmap = 255; 393 odac->bt_cmap = 255; 394 odac->bt_cmap = 255; 395 } 396 } 397 else if (hwplanemask == 0xff) { 398 struct bt458 *ndac = (struct bt458 *)OMFB_RAMDAC; 399 400 ndac->bt_addr = 0x04; 401 ndac->bt_ctrl = 0xff; /* all planes will be read */ 402 ndac->bt_ctrl = 0x00; /* all planes have non-blink */ 403 ndac->bt_ctrl = 0x43; /* pallete enabled, ovly plane */ 404 ndac->bt_ctrl = 0x00; /* no test mode */ 405 ndac->bt_addr = 0; 406 ndac->bt_cmap = 0; 407 ndac->bt_cmap = 0; 408 ndac->bt_cmap = 0; 409 for (i = 1; i < 256; i++) { 410 ndac->bt_cmap = 255; 411 ndac->bt_cmap = 255; 412 ndac->bt_cmap = 255; 413 } 414 } 415 #endif 416 417 /* adjust h/v orgin on screen */ 418 /* XXX not sure it's necessary XXX */ 419 rfcnt = (void *)OMFB_RFCNT; 420 rfcnt->h = 0; 421 rfcnt->v = 0; 422 423 /* clear the screen */ 424 *(u_int32_t *)OMFB_PLANEMASK = 0xff; 425 ((u_int32_t *)OMFB_ROPFUNC)[5] = ~0; /* ROP copy */ 426 for (i = 0; i < dc->dc_ht * dc->dc_rowbytes/sizeof(u_int32_t); i++) 427 *(u_int32_t *)(dc->dc_videobase + i) = 0; 428 *(u_int32_t *)OMFB_PLANEMASK = 0x01; 429 430 /* initialize the raster */ 431 rap = &dc->dc_raster; 432 rap->width = dc->dc_wid; 433 rap->height = dc->dc_ht; 434 rap->depth = dc->dc_depth; 435 rap->linelongs = dc->dc_rowbytes / sizeof(u_int32_t); 436 rap->pixels = (u_int32_t *)dc->dc_videobase; 437 438 /* initialize the raster console blitter */ 439 rcp = &dc->dc_rcons; 440 rcp->rc_sp = rap; 441 rcp->rc_crow = rcp->rc_ccol = -1; 442 rcp->rc_crowp = &rcp->rc_crow; 443 rcp->rc_ccolp = &rcp->rc_ccol; 444 rcons_init(rcp, 34, 80); 445 446 omfb_stdscreen.nrows = dc->dc_rcons.rc_maxrow; 447 omfb_stdscreen.ncols = dc->dc_rcons.rc_maxcol; 448 } 449 450 static int 451 omfb_alloc_screen(v, type, cookiep, curxp, curyp, attrp) 452 void *v; 453 const struct wsscreen_descr *type; 454 void **cookiep; 455 int *curxp, *curyp; 456 long *attrp; 457 { 458 struct omfb_softc *sc = v; 459 long defattr; 460 461 if (sc->nscreens > 0) 462 return (ENOMEM); 463 464 *cookiep = &sc->sc_dc->dc_rcons; /* one and only for now */ 465 *curxp = 0; 466 *curyp = 0; 467 (*omfb_emulops.alloc_attr)(&sc->sc_dc->dc_rcons, 0, 0, 0, &defattr); 468 *attrp = defattr; 469 sc->nscreens++; 470 return (0); 471 } 472 473 static void 474 omfb_free_screen(v, cookie) 475 void *v; 476 void *cookie; 477 { 478 struct omfb_softc *sc = v; 479 480 if (sc->sc_dc == &omfb_console_dc) 481 panic("omfb_free_screen: console"); 482 483 sc->nscreens--; 484 } 485 486 static int 487 omfb_show_screen(v, cookie, waitok, cb, cbarg) 488 void *v; 489 void *cookie; 490 int waitok; 491 void (*cb) __P((void *, int, int)); 492 void *cbarg; 493 { 494 return 0; 495 } 496
Indexes created Mon Sep 29 03:10:08 GMT 2025