1 /* $NetBSD: voodoofb.c,v 1.27 2011/01/22 15:14:28 cegger Exp $ */ 2 3 /* 4 * Copyright (c) 2005, 2006 Michael Lorenz 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 /* 29 * A console driver for 3Dfx Voodoo3 graphics boards 30 * Thanks to Andreas Drewke (andreas_dr@gmx.de) for his Voodoo3 driver for BeOS 31 * which I used as reference / documentation 32 */ 33 34 #include <sys/cdefs.h> 35 __KERNEL_RCSID(0, "$NetBSD: voodoofb.c,v 1.27 2011/01/22 15:14:28 cegger Exp $"); 36 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/kernel.h> 40 #include <sys/device.h> 41 #include <sys/malloc.h> 42 #include <sys/callout.h> 43 #include <sys/kauth.h> 44 45 #if defined(macppc) || defined (sparc64) || defined(ofppc) 46 #define HAVE_OPENFIRMWARE 47 #endif 48 49 #ifdef HAVE_OPENFIRMWARE 50 #include <dev/ofw/openfirm.h> 51 #include <dev/ofw/ofw_pci.h> 52 #endif 53 54 #include <dev/videomode/videomode.h> 55 56 #include <dev/pci/pcivar.h> 57 #include <dev/pci/pcireg.h> 58 #include <dev/pci/pcidevs.h> 59 #include <dev/pci/pciio.h> 60 #include <dev/pci/voodoofbreg.h> 61 62 #include <dev/wscons/wsdisplayvar.h> 63 #include <dev/wscons/wsconsio.h> 64 #include <dev/wsfont/wsfont.h> 65 #include <dev/rasops/rasops.h> 66 #include <dev/wscons/wsdisplay_vconsvar.h> 67 #include <dev/pci/wsdisplay_pci.h> 68 69 #include "opt_wsemul.h" 70 71 struct voodoofb_softc { 72 device_t sc_dev; 73 pci_chipset_tag_t sc_pc; 74 pcitag_t sc_pcitag; 75 struct pci_attach_args sc_pa; 76 77 bus_space_tag_t sc_memt; 78 bus_space_tag_t sc_iot; 79 bus_space_handle_t sc_memh; 80 81 bus_space_tag_t sc_regt; 82 bus_space_tag_t sc_fbt; 83 bus_space_tag_t sc_ioregt; 84 bus_space_handle_t sc_regh; 85 bus_space_handle_t sc_fbh; 86 bus_space_handle_t sc_ioregh; 87 bus_addr_t sc_regs, sc_fb, sc_ioreg; 88 bus_size_t sc_regsize, sc_fbsize, sc_ioregsize; 89 90 void *sc_ih; 91 92 size_t memsize; 93 int memtype; 94 95 int bits_per_pixel; 96 int width, height, linebytes; 97 const struct videomode *sc_videomode; 98 99 int sc_mode; 100 uint32_t sc_bg; 101 102 u_char sc_cmap_red[256]; 103 u_char sc_cmap_green[256]; 104 u_char sc_cmap_blue[256]; 105 int sc_dacw; 106 107 struct vcons_data vd; 108 }; 109 110 struct voodoo_regs { 111 uint8_t vr_crtc[31]; 112 uint8_t vr_graph[9]; 113 uint8_t vr_attr[21]; 114 uint8_t vr_seq[5]; 115 }; 116 117 static struct vcons_screen voodoofb_console_screen; 118 119 extern const u_char rasops_cmap[768]; 120 121 static int voodoofb_match(device_t, cfdata_t, void *); 122 static void voodoofb_attach(device_t, device_t, void *); 123 124 static int voodoofb_drm_print(void *, const char *); 125 static int voodoofb_drm_unmap(struct voodoofb_softc *); 126 static int voodoofb_drm_map(struct voodoofb_softc *); 127 128 CFATTACH_DECL_NEW(voodoofb, sizeof(struct voodoofb_softc), voodoofb_match, 129 voodoofb_attach, NULL, NULL); 130 131 static int voodoofb_is_console(struct pci_attach_args *); 132 static void voodoofb_init(struct voodoofb_softc *); 133 134 static void voodoofb_cursor(void *, int, int, int); 135 static void voodoofb_putchar(void *, int, int, u_int, long); 136 static void voodoofb_copycols(void *, int, int, int, int); 137 static void voodoofb_erasecols(void *, int, int, int, long); 138 static void voodoofb_copyrows(void *, int, int, int); 139 static void voodoofb_eraserows(void *, int, int, long); 140 141 #if 0 142 static int voodoofb_allocattr(void *, int, int, int, long *); 143 static void voodoofb_scroll(void *, void *, int); 144 static int voodoofb_load_font(void *, void *, struct wsdisplay_font *); 145 #endif 146 147 static int voodoofb_putcmap(struct voodoofb_softc *, 148 struct wsdisplay_cmap *); 149 static int voodoofb_getcmap(struct voodoofb_softc *, 150 struct wsdisplay_cmap *); 151 static int voodoofb_putpalreg(struct voodoofb_softc *, uint8_t, uint8_t, 152 uint8_t, uint8_t); 153 static void voodoofb_bitblt(struct voodoofb_softc *, int, int, int, int, 154 int, int); 155 static void voodoofb_rectfill(struct voodoofb_softc *, int, int, int, int, 156 int); 157 static void voodoofb_rectinvert(struct voodoofb_softc *, int, int, int, 158 int); 159 static void voodoofb_setup_mono(struct voodoofb_softc *, int, int, int, 160 int, uint32_t, uint32_t); 161 static void voodoofb_feed_line(struct voodoofb_softc *, int, uint8_t *); 162 163 static void voodoofb_wait_idle(struct voodoofb_softc *); 164 165 #ifdef VOODOOFB_ENABLE_INTR 166 static int voodoofb_intr(void *); 167 #endif 168 169 static void voodoofb_set_videomode(struct voodoofb_softc *, 170 const struct videomode *); 171 172 struct wsscreen_descr voodoofb_defaultscreen = { 173 "default", 174 0, 0, 175 NULL, 176 8, 16, 177 WSSCREEN_WSCOLORS | WSSCREEN_HILIT, 178 NULL, 179 }; 180 181 const struct wsscreen_descr *_voodoofb_scrlist[] = { 182 &voodoofb_defaultscreen, 183 /* XXX other formats, graphics screen? */ 184 }; 185 186 struct wsscreen_list voodoofb_screenlist = { 187 sizeof(_voodoofb_scrlist) / sizeof(struct wsscreen_descr *), _voodoofb_scrlist 188 }; 189 190 static int voodoofb_ioctl(void *, void *, u_long, void *, int, 191 struct lwp *); 192 static paddr_t voodoofb_mmap(void *, void *, off_t, int); 193 194 static void voodoofb_clearscreen(struct voodoofb_softc *); 195 static void voodoofb_init_screen(void *, struct vcons_screen *, int, 196 long *); 197 198 199 struct wsdisplay_accessops voodoofb_accessops = { 200 voodoofb_ioctl, 201 voodoofb_mmap, 202 NULL, 203 NULL, 204 NULL, 205 NULL, /* load_font */ 206 NULL, /* polls */ 207 NULL, /* scroll */ 208 }; 209 210 /* 211 * Inline functions for getting access to register aperture. 212 */ 213 static inline void 214 voodoo3_write32(struct voodoofb_softc *sc, uint32_t reg, uint32_t val) 215 { 216 bus_space_write_4(sc->sc_regt, sc->sc_regh, reg, val); 217 } 218 219 static inline uint32_t 220 voodoo3_read32(struct voodoofb_softc *sc, uint32_t reg) 221 { 222 return bus_space_read_4(sc->sc_regt, sc->sc_regh, reg); 223 } 224 225 static inline void 226 voodoo3_write_crtc(struct voodoofb_softc *sc, uint8_t reg, uint8_t val) 227 { 228 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, CRTC_INDEX - 0x300, reg); 229 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, CRTC_DATA - 0x300, val); 230 } 231 232 static inline void 233 voodoo3_write_seq(struct voodoofb_softc *sc, uint8_t reg, uint8_t val) 234 { 235 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, SEQ_INDEX - 0x300, reg); 236 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, SEQ_DATA - 0x300, val); 237 } 238 239 static inline void 240 voodoo3_write_gra(struct voodoofb_softc *sc, uint8_t reg, uint8_t val) 241 { 242 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, GRA_INDEX - 0x300, reg); 243 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, GRA_DATA - 0x300, val); 244 } 245 246 static inline void 247 voodoo3_write_attr(struct voodoofb_softc *sc, uint8_t reg, uint8_t val) 248 { 249 volatile uint8_t junk; 250 uint8_t index; 251 252 junk = bus_space_read_1(sc->sc_ioregt, sc->sc_ioregh, IS1_R - 0x300); 253 index = bus_space_read_1(sc->sc_ioregt, sc->sc_ioregh, ATT_IW - 0x300); 254 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, ATT_IW - 0x300, reg); 255 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, ATT_IW - 0x300, val); 256 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, ATT_IW - 0x300, index); 257 } 258 259 static inline void 260 vga_outb(struct voodoofb_softc *sc, uint32_t reg, uint8_t val) 261 { 262 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, reg - 0x300, val); 263 } 264 265 /* wait until there's room for len bytes in the FIFO */ 266 static inline void 267 voodoo3_make_room(struct voodoofb_softc *sc, int len) 268 { 269 while ((voodoo3_read32(sc, STATUS) & 0x1f) < len); 270 } 271 272 static void 273 voodoofb_wait_idle(struct voodoofb_softc *sc) 274 { 275 int i = 0; 276 277 voodoo3_make_room(sc, 1); 278 voodoo3_write32(sc, COMMAND_3D, COMMAND_3D_NOP); 279 280 while (1) { 281 i = (voodoo3_read32(sc, STATUS) & STATUS_BUSY) ? 0 : i + 1; 282 if(i == 3) break; 283 } 284 } 285 286 static int 287 voodoofb_match(device_t parent, cfdata_t match, void *aux) 288 { 289 struct pci_attach_args *pa = (struct pci_attach_args *)aux; 290 291 if (PCI_CLASS(pa->pa_class) != PCI_CLASS_DISPLAY || 292 PCI_SUBCLASS(pa->pa_class) != PCI_SUBCLASS_DISPLAY_VGA) 293 return 0; 294 if ((PCI_VENDOR(pa->pa_id)==PCI_VENDOR_3DFX) && 295 (PCI_PRODUCT(pa->pa_id)>=PCI_PRODUCT_3DFX_VOODOO3)) 296 return 100; 297 return 0; 298 } 299 300 static void 301 voodoofb_attach(device_t parent, device_t self, void *aux) 302 { 303 struct voodoofb_softc *sc = device_private(self); 304 struct pci_attach_args *pa = aux; 305 char devinfo[256]; 306 struct wsemuldisplaydev_attach_args aa; 307 struct rasops_info *ri; 308 #ifdef VOODOOFB_ENABLE_INTR 309 pci_intr_handle_t ih; 310 const char *intrstr; 311 #endif 312 ulong defattr; 313 int console, width, height, i, j; 314 #ifdef HAVE_OPENFIRMWARE 315 int linebytes, depth, node; 316 #endif 317 uint32_t bg, fg, ul; 318 319 sc->sc_dev = self; 320 321 sc->sc_mode = WSDISPLAYIO_MODE_EMUL; 322 #ifdef HAVE_OPENFIRMWARE 323 node = pcidev_to_ofdev(pa->pa_pc, pa->pa_tag); 324 #endif 325 sc->sc_pc = pa->pa_pc; 326 sc->sc_pcitag = pa->pa_tag; 327 sc->sc_dacw = -1; 328 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo)); 329 printf(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class)); 330 331 sc->sc_memt = pa->pa_memt; 332 sc->sc_iot = pa->pa_iot; 333 sc->sc_pa = *pa; 334 335 /* the framebuffer */ 336 if (pci_mapreg_map(pa, 0x14, PCI_MAPREG_TYPE_MEM, 337 BUS_SPACE_MAP_CACHEABLE | BUS_SPACE_MAP_PREFETCHABLE | 338 BUS_SPACE_MAP_LINEAR, 339 &sc->sc_fbt, &sc->sc_fbh, &sc->sc_fb, &sc->sc_fbsize)) { 340 aprint_error_dev(self, "failed to map the frame buffer.\n"); 341 } 342 343 /* memory-mapped registers */ 344 if (pci_mapreg_map(pa, 0x10, PCI_MAPREG_TYPE_MEM, 0, 345 &sc->sc_regt, &sc->sc_regh, &sc->sc_regs, &sc->sc_regsize)) { 346 aprint_error_dev(self, "failed to map memory-mapped registers.\n"); 347 } 348 349 /* IO-mapped registers */ 350 if (pci_mapreg_map(pa, 0x18, PCI_MAPREG_TYPE_IO, 0, 351 &sc->sc_ioregt, &sc->sc_ioregh, &sc->sc_ioreg, 352 &sc->sc_ioregsize)) { 353 aprint_error_dev(self, "failed to map IO-mapped registers.\n"); 354 } 355 voodoofb_init(sc); 356 357 /* we should read these from the chip instead of depending on OF */ 358 width = height = -1; 359 360 #ifdef HAVE_OPENFIRMWARE 361 if (OF_getprop(node, "width", &width, 4) != 4) 362 OF_interpret("screen-width", 1, 1, &width); 363 if (OF_getprop(node, "height", &height, 4) != 4) 364 OF_interpret("screen-height", 1, 1, &height); 365 if (OF_getprop(node, "linebytes", &linebytes, 4) != 4) 366 linebytes = width; /* XXX */ 367 if (OF_getprop(node, "depth", &depth, 4) != 4) 368 depth = 8; /* XXX */ 369 370 if (width == -1 || height == -1) 371 return; 372 373 sc->width = width; 374 sc->height = height; 375 sc->bits_per_pixel = depth; 376 sc->linebytes = linebytes; 377 printf("%s: initial resolution %dx%d, %d bit\n", device_xname(self), 378 sc->width, sc->height, sc->bits_per_pixel); 379 #endif 380 381 /* XXX this should at least be configurable via kernel config */ 382 if ((sc->sc_videomode = pick_mode_by_ref(1024, 768, 60)) != NULL) 383 voodoofb_set_videomode(sc, sc->sc_videomode); 384 385 vcons_init(&sc->vd, sc, &voodoofb_defaultscreen, &voodoofb_accessops); 386 sc->vd.init_screen = voodoofb_init_screen; 387 388 console = voodoofb_is_console(pa); 389 390 ri = &voodoofb_console_screen.scr_ri; 391 if (console) { 392 vcons_init_screen(&sc->vd, &voodoofb_console_screen, 1, 393 &defattr); 394 voodoofb_console_screen.scr_flags |= VCONS_SCREEN_IS_STATIC; 395 396 voodoofb_defaultscreen.textops = &ri->ri_ops; 397 voodoofb_defaultscreen.capabilities = ri->ri_caps; 398 voodoofb_defaultscreen.nrows = ri->ri_rows; 399 voodoofb_defaultscreen.ncols = ri->ri_cols; 400 wsdisplay_cnattach(&voodoofb_defaultscreen, ri, 0, 0, defattr); 401 } else { 402 /* 403 * since we're not the console we can postpone the rest 404 * until someone actually allocates a screen for us 405 */ 406 voodoofb_set_videomode(sc, sc->sc_videomode); 407 } 408 409 printf("%s: %d MB aperture at 0x%08x, %d MB registers at 0x%08x\n", 410 device_xname(self), (u_int)(sc->sc_fbsize >> 20), 411 (u_int)sc->sc_fb, (u_int)(sc->sc_regsize >> 20), 412 (u_int)sc->sc_regs); 413 #ifdef VOODOOFB_DEBUG 414 printf("fb: %08lx\n", (ulong)ri->ri_bits); 415 #endif 416 417 j = 0; 418 for (i = 0; i < 256; i++) { 419 voodoofb_putpalreg(sc, i, rasops_cmap[j], rasops_cmap[j + 1], 420 rasops_cmap[j + 2]); 421 j += 3; 422 } 423 424 #ifdef VOODOOFB_ENABLE_INTR 425 /* Interrupt. We don't use it for anything yet */ 426 if (pci_intr_map(pa, &ih)) { 427 aprint_error_dev(self, "failed to map interrupt\n"); 428 return; 429 } 430 431 intrstr = pci_intr_string(sc->sc_pc, ih); 432 sc->sc_ih = pci_intr_establish(sc->sc_pc, ih, IPL_NET, voodoofb_intr, 433 sc); 434 if (sc->sc_ih == NULL) { 435 aprint_error_dev(self, "failed to establish interrupt"); 436 if (intrstr != NULL) 437 aprint_error(" at %s", intrstr); 438 aprint_error("\n"); 439 return; 440 } 441 aprint_normal_dev(self, "interrupting at %s\n", intrstr); 442 #endif 443 444 rasops_unpack_attr(defattr, &fg, &bg, &ul); 445 sc->sc_bg = ri->ri_devcmap[bg]; 446 voodoofb_clearscreen(sc); 447 448 if (console) 449 vcons_replay_msgbuf(&voodoofb_console_screen); 450 aa.console = console; 451 aa.scrdata = &voodoofb_screenlist; 452 aa.accessops = &voodoofb_accessops; 453 aa.accesscookie = &sc->vd; 454 455 config_found(self, &aa, wsemuldisplaydevprint); 456 config_found_ia(self, "drm", aux, voodoofb_drm_print); 457 } 458 459 static int 460 voodoofb_drm_print(void *opaque, const char *pnp) 461 { 462 if (pnp) 463 aprint_normal("drm at %s", pnp); 464 465 return UNCONF; 466 } 467 468 static int 469 voodoofb_drm_unmap(struct voodoofb_softc *sc) 470 { 471 printf("%s: releasing bus resources\n", device_xname(sc->sc_dev)); 472 473 bus_space_unmap(sc->sc_ioregt, sc->sc_ioregh, sc->sc_ioregsize); 474 bus_space_unmap(sc->sc_regt, sc->sc_regh, sc->sc_regsize); 475 bus_space_unmap(sc->sc_fbt, sc->sc_fbh, sc->sc_fbsize); 476 477 return 0; 478 } 479 480 static int 481 voodoofb_drm_map(struct voodoofb_softc *sc) 482 { 483 if (pci_mapreg_map(&sc->sc_pa, 0x14, PCI_MAPREG_TYPE_MEM, 484 BUS_SPACE_MAP_CACHEABLE | BUS_SPACE_MAP_PREFETCHABLE | 485 BUS_SPACE_MAP_LINEAR, 486 &sc->sc_fbt, &sc->sc_fbh, &sc->sc_fb, &sc->sc_fbsize)) { 487 aprint_error_dev(sc->sc_dev, "failed to map the frame buffer.\n"); 488 } 489 490 /* memory-mapped registers */ 491 if (pci_mapreg_map(&sc->sc_pa, 0x10, PCI_MAPREG_TYPE_MEM, 0, 492 &sc->sc_regt, &sc->sc_regh, &sc->sc_regs, &sc->sc_regsize)) { 493 aprint_error_dev(sc->sc_dev, "failed to map memory-mapped registers.\n"); 494 } 495 496 /* IO-mapped registers */ 497 if (pci_mapreg_map(&sc->sc_pa, 0x18, PCI_MAPREG_TYPE_IO, 0, 498 &sc->sc_ioregt, &sc->sc_ioregh, &sc->sc_ioreg, 499 &sc->sc_ioregsize)) { 500 aprint_error_dev(sc->sc_dev, "failed to map IO-mapped registers.\n"); 501 } 502 503 voodoofb_init(sc); 504 /* XXX this should at least be configurable via kernel config */ 505 voodoofb_set_videomode(sc, sc->sc_videomode); 506 507 return 0; 508 } 509 510 static int 511 voodoofb_putpalreg(struct voodoofb_softc *sc, uint8_t index, uint8_t r, 512 uint8_t g, uint8_t b) 513 { 514 uint32_t color; 515 516 sc->sc_cmap_red[index] = r; 517 sc->sc_cmap_green[index] = g; 518 sc->sc_cmap_blue[index] = b; 519 520 color = (r << 16) | (g << 8) | b; 521 voodoo3_make_room(sc, 2); 522 voodoo3_write32(sc, DACADDR, index); 523 voodoo3_write32(sc, DACDATA, color); 524 525 return 0; 526 } 527 528 static int 529 voodoofb_putcmap(struct voodoofb_softc *sc, struct wsdisplay_cmap *cm) 530 { 531 u_char *r, *g, *b; 532 u_int index = cm->index; 533 u_int count = cm->count; 534 int i, error; 535 u_char rbuf[256], gbuf[256], bbuf[256]; 536 537 #ifdef VOODOOFB_DEBUG 538 printf("putcmap: %d %d\n",index, count); 539 #endif 540 if (cm->index >= 256 || cm->count > 256 || 541 (cm->index + cm->count) > 256) 542 return EINVAL; 543 error = copyin(cm->red, &rbuf[index], count); 544 if (error) 545 return error; 546 error = copyin(cm->green, &gbuf[index], count); 547 if (error) 548 return error; 549 error = copyin(cm->blue, &bbuf[index], count); 550 if (error) 551 return error; 552 553 memcpy(&sc->sc_cmap_red[index], &rbuf[index], count); 554 memcpy(&sc->sc_cmap_green[index], &gbuf[index], count); 555 memcpy(&sc->sc_cmap_blue[index], &bbuf[index], count); 556 557 r = &sc->sc_cmap_red[index]; 558 g = &sc->sc_cmap_green[index]; 559 b = &sc->sc_cmap_blue[index]; 560 561 for (i = 0; i < count; i++) { 562 voodoofb_putpalreg(sc, index, *r, *g, *b); 563 index++; 564 r++, g++, b++; 565 } 566 return 0; 567 } 568 569 static int 570 voodoofb_getcmap(struct voodoofb_softc *sc, struct wsdisplay_cmap *cm) 571 { 572 u_int index = cm->index; 573 u_int count = cm->count; 574 int error; 575 576 if (index >= 255 || count > 256 || index + count > 256) 577 return EINVAL; 578 579 error = copyout(&sc->sc_cmap_red[index], cm->red, count); 580 if (error) 581 return error; 582 error = copyout(&sc->sc_cmap_green[index], cm->green, count); 583 if (error) 584 return error; 585 error = copyout(&sc->sc_cmap_blue[index], cm->blue, count); 586 if (error) 587 return error; 588 589 return 0; 590 } 591 592 static int 593 voodoofb_is_console(struct pci_attach_args *pa) 594 { 595 596 #ifdef HAVE_OPENFIRMWARE 597 /* check if we're the /chosen console device */ 598 int chosen, stdout, node, us; 599 600 us=pcidev_to_ofdev(pa->pa_pc, pa->pa_tag); 601 chosen = OF_finddevice("/chosen"); 602 OF_getprop(chosen, "stdout", &stdout, 4); 603 node = OF_instance_to_package(stdout); 604 return(us == node); 605 #else 606 /* XXX how do we know we're console on i386? */ 607 return 1; 608 #endif 609 } 610 611 static void 612 voodoofb_clearscreen(struct voodoofb_softc *sc) 613 { 614 voodoofb_rectfill(sc, 0, 0, sc->width, sc->height, sc->sc_bg); 615 } 616 617 /* 618 * wsdisplay_emulops 619 */ 620 621 static void 622 voodoofb_cursor(void *cookie, int on, int row, int col) 623 { 624 struct rasops_info *ri = cookie; 625 struct vcons_screen *scr = ri->ri_hw; 626 struct voodoofb_softc *sc = scr->scr_cookie; 627 int x, y, wi, he; 628 629 wi = ri->ri_font->fontwidth; 630 he = ri->ri_font->fontheight; 631 632 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 633 x = ri->ri_ccol * wi + ri->ri_xorigin; 634 y = ri->ri_crow * he + ri->ri_yorigin; 635 if (ri->ri_flg & RI_CURSOR) { 636 voodoofb_rectinvert(sc, x, y, wi, he); 637 ri->ri_flg &= ~RI_CURSOR; 638 } 639 ri->ri_crow = row; 640 ri->ri_ccol = col; 641 if (on) 642 { 643 x = ri->ri_ccol * wi + ri->ri_xorigin; 644 y = ri->ri_crow * he + ri->ri_yorigin; 645 voodoofb_rectinvert(sc, x, y, wi, he); 646 ri->ri_flg |= RI_CURSOR; 647 } 648 } else { 649 ri->ri_flg &= ~RI_CURSOR; 650 ri->ri_crow = row; 651 ri->ri_ccol = col; 652 } 653 } 654 655 #if 0 656 int 657 voodoofb_mapchar(void *cookie, int uni, u_int *index) 658 { 659 return 0; 660 } 661 #endif 662 663 static void 664 voodoofb_putchar(void *cookie, int row, int col, u_int c, long attr) 665 { 666 struct rasops_info *ri = cookie; 667 struct wsdisplay_font *font = PICK_FONT(ri, c); 668 struct vcons_screen *scr = ri->ri_hw; 669 struct voodoofb_softc *sc = scr->scr_cookie; 670 671 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 672 uint8_t *data; 673 int fg, bg, uc, i; 674 int x, y, wi, he; 675 676 wi = font->fontwidth; 677 he = font->fontheight; 678 679 if (!CHAR_IN_FONT(c, font)) 680 return; 681 bg = (u_char)ri->ri_devcmap[(attr >> 16) & 0xf]; 682 fg = (u_char)ri->ri_devcmap[(attr >> 24) & 0xf]; 683 x = ri->ri_xorigin + col * wi; 684 y = ri->ri_yorigin + row * he; 685 if (c == 0x20) { 686 voodoofb_rectfill(sc, x, y, wi, he, bg); 687 } else { 688 uc = c - font->firstchar; 689 data = (uint8_t *)font->data + uc * 690 ri->ri_fontscale; 691 voodoofb_setup_mono(sc, x, y, wi, he, fg, bg); 692 for (i = 0; i < he; i++) { 693 voodoofb_feed_line(sc, font->stride, data); 694 data += font->stride; 695 } 696 } 697 } 698 } 699 700 static void 701 voodoofb_copycols(void *cookie, int row, int srccol, int dstcol, int ncols) 702 { 703 struct rasops_info *ri = cookie; 704 struct vcons_screen *scr = ri->ri_hw; 705 struct voodoofb_softc *sc = scr->scr_cookie; 706 int32_t xs, xd, y, width, height; 707 708 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 709 xs = ri->ri_xorigin + ri->ri_font->fontwidth * srccol; 710 xd = ri->ri_xorigin + ri->ri_font->fontwidth * dstcol; 711 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 712 width = ri->ri_font->fontwidth * ncols; 713 height = ri->ri_font->fontheight; 714 voodoofb_bitblt(sc, xs, y, xd, y, width, height); 715 } 716 } 717 718 static void 719 voodoofb_erasecols(void *cookie, int row, int startcol, int ncols, 720 long fillattr) 721 { 722 struct rasops_info *ri = cookie; 723 struct vcons_screen *scr = ri->ri_hw; 724 struct voodoofb_softc *sc = scr->scr_cookie; 725 int32_t x, y, width, height, fg, bg, ul; 726 727 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 728 x = ri->ri_xorigin + ri->ri_font->fontwidth * startcol; 729 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 730 width = ri->ri_font->fontwidth * ncols; 731 height = ri->ri_font->fontheight; 732 rasops_unpack_attr(fillattr, &fg, &bg, &ul); 733 734 voodoofb_rectfill(sc, x, y, width, height, ri->ri_devcmap[bg]); 735 } 736 } 737 738 static void 739 voodoofb_copyrows(void *cookie, int srcrow, int dstrow, int nrows) 740 { 741 struct rasops_info *ri = cookie; 742 struct vcons_screen *scr = ri->ri_hw; 743 struct voodoofb_softc *sc = scr->scr_cookie; 744 int32_t x, ys, yd, width, height; 745 746 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 747 x = ri->ri_xorigin; 748 ys = ri->ri_yorigin + ri->ri_font->fontheight * srcrow; 749 yd = ri->ri_yorigin + ri->ri_font->fontheight * dstrow; 750 width = ri->ri_emuwidth; 751 height = ri->ri_font->fontheight * nrows; 752 voodoofb_bitblt(sc, x, ys, x, yd, width, height); 753 } 754 } 755 756 static void 757 voodoofb_eraserows(void *cookie, int row, int nrows, long fillattr) 758 { 759 struct rasops_info *ri = cookie; 760 struct vcons_screen *scr = ri->ri_hw; 761 struct voodoofb_softc *sc = scr->scr_cookie; 762 int32_t x, y, width, height, fg, bg, ul; 763 764 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 765 rasops_unpack_attr(fillattr, &fg, &bg, &ul); 766 if ((row == 0) && (nrows == ri->ri_rows)) { 767 /* clear the whole screen */ 768 voodoofb_rectfill(sc, 0, 0, ri->ri_width, 769 ri->ri_height, ri->ri_devcmap[bg]); 770 } else { 771 x = ri->ri_xorigin; 772 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 773 width = ri->ri_emuwidth; 774 height = ri->ri_font->fontheight * nrows; 775 voodoofb_rectfill(sc, x, y, width, height, 776 ri->ri_devcmap[bg]); 777 } 778 } 779 } 780 781 static void 782 voodoofb_bitblt(struct voodoofb_softc *sc, int xs, int ys, int xd, int yd, int width, int height) 783 { 784 uint32_t fmt, blitcmd; 785 786 fmt = sc->linebytes | ((sc->bits_per_pixel + 787 ((sc->bits_per_pixel == 8) ? 0 : 8)) << 13); 788 blitcmd = COMMAND_2D_S2S_BITBLT | (ROP_COPY << 24); 789 790 if (xs <= xd) { 791 blitcmd |= BIT(14); 792 xs += (width - 1); 793 xd += (width - 1); 794 } 795 if (ys <= yd) { 796 blitcmd |= BIT(15); 797 ys += (height - 1); 798 yd += (height - 1); 799 } 800 voodoo3_make_room(sc, 6); 801 802 voodoo3_write32(sc, SRCFORMAT, fmt); 803 voodoo3_write32(sc, DSTFORMAT, fmt); 804 voodoo3_write32(sc, DSTSIZE, width | (height << 16)); 805 voodoo3_write32(sc, DSTXY, xd | (yd << 16)); 806 voodoo3_write32(sc, SRCXY, xs | (ys << 16)); 807 voodoo3_write32(sc, COMMAND_2D, blitcmd | SST_2D_GO); 808 } 809 810 static void 811 voodoofb_rectfill(struct voodoofb_softc *sc, int x, int y, int width, 812 int height, int colour) 813 { 814 uint32_t fmt, col; 815 816 col = (colour << 24) | (colour << 16) | (colour << 8) | colour; 817 fmt = sc->linebytes | ((sc->bits_per_pixel + 818 ((sc->bits_per_pixel == 8) ? 0 : 8)) << 13); 819 820 voodoo3_make_room(sc, 6); 821 voodoo3_write32(sc, DSTFORMAT, fmt); 822 voodoo3_write32(sc, COLORFORE, colour); 823 voodoo3_write32(sc, COLORBACK, colour); 824 voodoo3_write32(sc, COMMAND_2D, COMMAND_2D_FILLRECT | (ROP_COPY << 24)); 825 voodoo3_write32(sc, DSTSIZE, width | (height << 16)); 826 voodoo3_write32(sc, LAUNCH_2D, x | (y << 16)); 827 } 828 829 static void 830 voodoofb_rectinvert(struct voodoofb_softc *sc, int x, int y, int width, 831 int height) 832 { 833 uint32_t fmt; 834 835 fmt = sc->linebytes | ((sc->bits_per_pixel + 836 ((sc->bits_per_pixel == 8) ? 0 : 8)) << 13); 837 838 voodoo3_make_room(sc, 6); 839 voodoo3_write32(sc, DSTFORMAT, fmt); 840 voodoo3_write32(sc, COMMAND_2D, COMMAND_2D_FILLRECT | 841 (ROP_INVERT << 24)); 842 voodoo3_write32(sc, DSTSIZE, width | (height << 16)); 843 voodoo3_write32(sc, DSTXY, x | (y << 16)); 844 voodoo3_write32(sc, LAUNCH_2D, x | (y << 16)); 845 } 846 847 static void 848 voodoofb_setup_mono(struct voodoofb_softc *sc, int xd, int yd, int width, int height, uint32_t fg, 849 uint32_t bg) 850 { 851 uint32_t dfmt, sfmt = sc->linebytes; 852 853 dfmt = sc->linebytes | ((sc->bits_per_pixel + 854 ((sc->bits_per_pixel == 8) ? 0 : 8)) << 13); 855 856 voodoo3_make_room(sc, 9); 857 voodoo3_write32(sc, SRCFORMAT, sfmt); 858 voodoo3_write32(sc, DSTFORMAT, dfmt); 859 voodoo3_write32(sc, COLORFORE, fg); 860 voodoo3_write32(sc, COLORBACK, bg); 861 voodoo3_write32(sc, DSTSIZE, width | (height << 16)); 862 voodoo3_write32(sc, DSTXY, xd | (yd << 16)); 863 voodoo3_write32(sc, SRCXY, 0); 864 voodoo3_write32(sc, COMMAND_2D, COMMAND_2D_H2S_BITBLT | 865 (ROP_COPY << 24) | SST_2D_GO); 866 867 /* now feed the data into the chip */ 868 } 869 870 static void 871 voodoofb_feed_line(struct voodoofb_softc *sc, int count, uint8_t *data) 872 { 873 int i; 874 uint32_t latch = 0, bork; 875 int shift = 0; 876 877 voodoo3_make_room(sc, count); 878 for (i = 0; i < count; i++) { 879 bork = data[i]; 880 latch |= (bork << shift); 881 if (shift == 24) { 882 voodoo3_write32(sc, LAUNCH_2D, latch); 883 latch = 0; 884 shift = 0; 885 } else 886 shift += 8; 887 } 888 if (shift != 24) 889 voodoo3_write32(sc, LAUNCH_2D, latch); 890 } 891 892 #if 0 893 static int 894 voodoofb_allocattr(void *cookie, int fg, int bg, int flags, long *attrp) 895 { 896 897 return 0; 898 } 899 #endif 900 901 /* 902 * wsdisplay_accessops 903 */ 904 905 static int 906 voodoofb_ioctl(void *v, void *vs, u_long cmd, void *data, int flag, 907 struct lwp *l) 908 { 909 struct vcons_data *vd = v; 910 struct voodoofb_softc *sc = vd->cookie; 911 struct wsdisplay_fbinfo *wdf; 912 struct vcons_screen *ms = vd->active; 913 914 switch (cmd) { 915 case WSDISPLAYIO_GTYPE: 916 *(u_int *)data = WSDISPLAY_TYPE_PCIMISC; 917 return 0; 918 919 case WSDISPLAYIO_GINFO: 920 wdf = (void *)data; 921 wdf->height = ms->scr_ri.ri_height; 922 wdf->width = ms->scr_ri.ri_width; 923 wdf->depth = ms->scr_ri.ri_depth; 924 wdf->cmsize = 256; 925 return 0; 926 927 case WSDISPLAYIO_GETCMAP: 928 return voodoofb_getcmap(sc, 929 (struct wsdisplay_cmap *)data); 930 931 case WSDISPLAYIO_PUTCMAP: 932 return voodoofb_putcmap(sc, 933 (struct wsdisplay_cmap *)data); 934 935 /* PCI config read/write passthrough. */ 936 case PCI_IOC_CFGREAD: 937 case PCI_IOC_CFGWRITE: 938 return pci_devioctl(sc->sc_pc, sc->sc_pcitag, 939 cmd, data, flag, l); 940 941 case WSDISPLAYIO_GET_BUSID: 942 return wsdisplayio_busid_pci(sc->sc_dev, sc->sc_pc, 943 sc->sc_pcitag, data); 944 945 case WSDISPLAYIO_SMODE: { 946 int new_mode = *(int*)data; 947 if (new_mode != sc->sc_mode) { 948 sc->sc_mode = new_mode; 949 if (new_mode == WSDISPLAYIO_MODE_EMUL) { 950 voodoofb_drm_map(sc); 951 int i; 952 953 /* restore the palette */ 954 for (i = 0; i < 256; i++) { 955 voodoofb_putpalreg(sc, 956 i, 957 sc->sc_cmap_red[i], 958 sc->sc_cmap_green[i], 959 sc->sc_cmap_blue[i]); 960 } 961 vcons_redraw_screen(ms); 962 } else 963 voodoofb_drm_unmap(sc); 964 } 965 } 966 return 0; 967 } 968 return EPASSTHROUGH; 969 } 970 971 static paddr_t 972 voodoofb_mmap(void *v, void *vs, off_t offset, int prot) 973 { 974 struct vcons_data *vd = v; 975 struct voodoofb_softc *sc = vd->cookie; 976 paddr_t pa; 977 978 /* 'regular' framebuffer mmap()ing */ 979 if (offset < sc->sc_fbsize) { 980 pa = bus_space_mmap(sc->sc_fbt, offset, 0, prot, 981 BUS_SPACE_MAP_LINEAR); 982 return pa; 983 } 984 985 /* 986 * restrict all other mappings to processes with superuser privileges 987 * or the kernel itself 988 */ 989 if (kauth_authorize_generic(kauth_cred_get(), KAUTH_GENERIC_ISSUSER, 990 NULL) != 0) { 991 aprint_error_dev(sc->sc_dev, "mmap() rejected.\n"); 992 return -1; 993 } 994 995 if ((offset >= sc->sc_fb) && (offset < (sc->sc_fb + sc->sc_fbsize))) { 996 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 997 BUS_SPACE_MAP_LINEAR); 998 return pa; 999 } 1000 1001 if ((offset >= sc->sc_regs) && (offset < (sc->sc_regs + 1002 sc->sc_regsize))) { 1003 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 1004 BUS_SPACE_MAP_LINEAR); 1005 return pa; 1006 } 1007 1008 #ifdef PCI_MAGIC_IO_RANGE 1009 /* allow mapping of IO space */ 1010 if ((offset >= PCI_MAGIC_IO_RANGE) &&\ 1011 (offset < PCI_MAGIC_IO_RANGE + 0x10000)) { 1012 pa = bus_space_mmap(sc->sc_iot, offset - PCI_MAGIC_IO_RANGE, 1013 0, prot, BUS_SPACE_MAP_LINEAR); 1014 return pa; 1015 } 1016 #endif 1017 1018 #ifdef OFB_ALLOW_OTHERS 1019 if (offset >= 0x80000000) { 1020 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 1021 BUS_SPACE_MAP_LINEAR); 1022 return pa; 1023 } 1024 #endif 1025 return -1; 1026 } 1027 1028 static void 1029 voodoofb_init_screen(void *cookie, struct vcons_screen *scr, 1030 int existing, long *defattr) 1031 { 1032 struct voodoofb_softc *sc = cookie; 1033 struct rasops_info *ri = &scr->scr_ri; 1034 1035 ri->ri_depth = sc->bits_per_pixel; 1036 ri->ri_width = sc->width; 1037 ri->ri_height = sc->height; 1038 ri->ri_stride = sc->width; 1039 ri->ri_flg = RI_CENTER | RI_FULLCLEAR; 1040 1041 ri->ri_bits = bus_space_vaddr(sc->sc_fbt, sc->sc_fbh); 1042 1043 #ifdef VOODOOFB_DEBUG 1044 printf("addr: %08lx\n", (ulong)ri->ri_bits); 1045 #endif 1046 if (existing) { 1047 ri->ri_flg |= RI_CLEAR; 1048 } 1049 1050 rasops_init(ri, sc->height/8, sc->width/8); 1051 ri->ri_caps = WSSCREEN_WSCOLORS; 1052 1053 rasops_reconfig(ri, sc->height / ri->ri_font->fontheight, 1054 sc->width / ri->ri_font->fontwidth); 1055 1056 ri->ri_hw = scr; 1057 ri->ri_ops.copyrows = voodoofb_copyrows; 1058 ri->ri_ops.copycols = voodoofb_copycols; 1059 ri->ri_ops.eraserows = voodoofb_eraserows; 1060 ri->ri_ops.erasecols = voodoofb_erasecols; 1061 ri->ri_ops.cursor = voodoofb_cursor; 1062 ri->ri_ops.putchar = voodoofb_putchar; 1063 } 1064 1065 #if 0 1066 int 1067 voodoofb_load_font(void *v, void *cookie, struct wsdisplay_font *data) 1068 { 1069 1070 return 0; 1071 } 1072 #endif 1073 1074 #ifdef VOODOOFB_ENABLE_INTR 1075 static int 1076 voodoofb_intr(void *arg) 1077 { 1078 struct voodoofb_softc *sc = arg; 1079 1080 voodoo3_write32(sc, V3_STATUS, 0); /* clear interrupts */ 1081 return 1; 1082 } 1083 #endif 1084 1085 /* video mode stuff */ 1086 1087 #define REFFREQ 14318 /* .18 */ 1088 1089 #define ABS(a) ((a < 0) ? -a : a) 1090 1091 static int 1092 voodoofb_calc_pll(int freq, int *f_out, int isBanshee) 1093 { 1094 int m, n, k, best_m, best_n, best_k, f_cur, best_error; 1095 int minm, maxm; 1096 1097 best_error = freq; 1098 best_n = best_m = best_k = 0; 1099 1100 if (isBanshee) { 1101 minm = 24; 1102 maxm = 24; 1103 } else { 1104 minm = 1; 1105 maxm = 57; 1106 /* This used to be 64, alas it seems the last 8 (funny that ?) 1107 * values cause jittering at lower resolutions. I've not done 1108 * any calculations to what the adjustment affects clock ranges, 1109 * but I can still run at 1600x1200@75Hz */ 1110 } 1111 for (n = 1; n < 256; n++) { 1112 f_cur = REFFREQ * (n + 2); 1113 if (f_cur < freq) { 1114 f_cur = f_cur / 3; 1115 if (freq - f_cur < best_error) { 1116 best_error = freq - f_cur; 1117 best_n = n; 1118 best_m = 1; 1119 best_k = 0; 1120 continue; 1121 } 1122 } 1123 for (m = minm; m < maxm; m++) { 1124 for (k = 0; k < 4; k++) { 1125 f_cur = REFFREQ * (n + 2) / (m + 2) / (1 << k); 1126 if (ABS(f_cur - freq) < best_error) { 1127 best_error = ABS(f_cur - freq); 1128 best_n = n; 1129 best_m = m; 1130 best_k = k; 1131 } 1132 } 1133 } 1134 } 1135 n = best_n; 1136 m = best_m; 1137 k = best_k; 1138 *f_out = REFFREQ * (n + 2) / (m + 2) / (1 << k); 1139 return ( n << 8) | (m << 2) | k; 1140 } 1141 1142 static void 1143 voodoofb_setup_monitor(struct voodoofb_softc *sc, const struct videomode *vm) 1144 { 1145 struct voodoo_regs mod; 1146 struct voodoo_regs *mode; 1147 uint32_t horizontal_display_end, horizontal_sync_start, 1148 horizontal_sync_end, horizontal_total, 1149 horizontal_blanking_start, horizontal_blanking_end; 1150 1151 uint32_t vertical_display_enable_end, vertical_sync_start, 1152 vertical_sync_end, vertical_total, vertical_blanking_start, 1153 vertical_blanking_end; 1154 1155 uint32_t wd; // CRTC offset 1156 1157 int i; 1158 1159 uint8_t misc; 1160 1161 memset(&mod, 0, sizeof(mode)); 1162 1163 mode = &mod; 1164 1165 wd = (vm->hdisplay >> 3) - 1; 1166 horizontal_display_end = (vm->hdisplay >> 3) - 1; 1167 horizontal_sync_start = (vm->hsync_start >> 3) - 1; 1168 horizontal_sync_end = (vm->hsync_end >> 3) - 1; 1169 horizontal_total = (vm->htotal >> 3) - 1; 1170 horizontal_blanking_start = horizontal_display_end; 1171 horizontal_blanking_end = horizontal_total; 1172 1173 vertical_display_enable_end = vm->vdisplay - 1; 1174 vertical_sync_start = vm->vsync_start; // - 1; 1175 vertical_sync_end = vm->vsync_end; // - 1; 1176 vertical_total = vm->vtotal - 2; 1177 vertical_blanking_start = vertical_display_enable_end; 1178 vertical_blanking_end = vertical_total; 1179 1180 misc = 0x0f | 1181 (vm->hdisplay < 400 ? 0xa0 : 1182 vm->hdisplay < 480 ? 0x60 : 1183 vm->hdisplay < 768 ? 0xe0 : 0x20); 1184 1185 mode->vr_seq[0] = 3; 1186 mode->vr_seq[1] = 1; 1187 mode->vr_seq[2] = 8; 1188 mode->vr_seq[3] = 0; 1189 mode->vr_seq[4] = 6; 1190 1191 /* crtc regs start */ 1192 mode->vr_crtc[0] = horizontal_total - 4; 1193 mode->vr_crtc[1] = horizontal_display_end; 1194 mode->vr_crtc[2] = horizontal_blanking_start; 1195 mode->vr_crtc[3] = 0x80 | (horizontal_blanking_end & 0x1f); 1196 mode->vr_crtc[4] = horizontal_sync_start; 1197 1198 mode->vr_crtc[5] = ((horizontal_blanking_end & 0x20) << 2) | 1199 (horizontal_sync_end & 0x1f); 1200 mode->vr_crtc[6] = vertical_total; 1201 mode->vr_crtc[7] = ((vertical_sync_start & 0x200) >> 2) | 1202 ((vertical_display_enable_end & 0x200) >> 3) | 1203 ((vertical_total & 0x200) >> 4) | 1204 0x10 | 1205 ((vertical_blanking_start & 0x100) >> 5) | 1206 ((vertical_sync_start & 0x100) >> 6) | 1207 ((vertical_display_enable_end & 0x100) >> 7) | 1208 ((vertical_total & 0x100) >> 8); 1209 1210 mode->vr_crtc[8] = 0; 1211 mode->vr_crtc[9] = 0x40 | 1212 ((vertical_blanking_start & 0x200) >> 4); 1213 1214 mode->vr_crtc[10] = 0; 1215 mode->vr_crtc[11] = 0; 1216 mode->vr_crtc[12] = 0; 1217 mode->vr_crtc[13] = 0; 1218 mode->vr_crtc[14] = 0; 1219 mode->vr_crtc[15] = 0; 1220 1221 mode->vr_crtc[16] = vertical_sync_start; 1222 mode->vr_crtc[17] = (vertical_sync_end & 0x0f) | 0x20; 1223 mode->vr_crtc[18] = vertical_display_enable_end; 1224 mode->vr_crtc[19] = wd; // CRTC offset 1225 mode->vr_crtc[20] = 0; 1226 mode->vr_crtc[21] = vertical_blanking_start; 1227 mode->vr_crtc[22] = vertical_blanking_end + 1; 1228 mode->vr_crtc[23] = 128; 1229 mode->vr_crtc[24] = 255; 1230 1231 /* overflow registers */ 1232 mode->vr_crtc[CRTC_HDISP_EXT] = 1233 (horizontal_total&0x100) >> 8 | 1234 (horizontal_display_end & 0x100) >> 6 | 1235 (horizontal_blanking_start & 0x100) >> 4 | 1236 (horizontal_blanking_end & 0x40) >> 1 | 1237 (horizontal_sync_start & 0x100) >> 2 | 1238 (horizontal_sync_end & 0x20) << 2; 1239 1240 mode->vr_crtc[CRTC_VDISP_EXT] = 1241 (vertical_total & 0x400) >> 10 | 1242 (vertical_display_enable_end & 0x400) >> 8 | 1243 (vertical_blanking_start & 0x400) >> 6 | 1244 (vertical_blanking_end & 0x400) >> 4; 1245 1246 /* attr regs start */ 1247 mode->vr_attr[0] = 0; 1248 mode->vr_attr[1] = 0; 1249 mode->vr_attr[2] = 0; 1250 mode->vr_attr[3] = 0; 1251 mode->vr_attr[4] = 0; 1252 mode->vr_attr[5] = 0; 1253 mode->vr_attr[6] = 0; 1254 mode->vr_attr[7] = 0; 1255 mode->vr_attr[8] = 0; 1256 mode->vr_attr[9] = 0; 1257 mode->vr_attr[10] = 0; 1258 mode->vr_attr[11] = 0; 1259 mode->vr_attr[12] = 0; 1260 mode->vr_attr[13] = 0; 1261 mode->vr_attr[14] = 0; 1262 mode->vr_attr[15] = 0; 1263 mode->vr_attr[16] = 1; 1264 mode->vr_attr[17] = 0; 1265 mode->vr_attr[18] = 15; 1266 mode->vr_attr[19] = 0; 1267 /* attr regs end */ 1268 1269 /* graph regs start */ 1270 mode->vr_graph[0] = 159; 1271 mode->vr_graph[1] = 127; 1272 mode->vr_graph[2] = 127; 1273 mode->vr_graph[3] = 131; 1274 mode->vr_graph[4] = 130; 1275 mode->vr_graph[5] = 142; 1276 mode->vr_graph[6] = 30; 1277 mode->vr_graph[7] = 245; 1278 mode->vr_graph[8] = 0; 1279 1280 vga_outb(sc, MISC_W, misc | 0x01); 1281 1282 for(i = 0; i < 5; i++) 1283 voodoo3_write_seq(sc, i, mode->vr_seq[i]); 1284 for (i = 0; i < CRTC_PCI_READBACK; i ++) 1285 voodoo3_write_crtc(sc, i, mode->vr_crtc[i]); 1286 for (i = 0; i < 0x14; i ++) 1287 voodoo3_write_attr(sc, i, mode->vr_attr[i]); 1288 for (i = 0; i < 0x09; i ++) 1289 voodoo3_write_gra(sc, i, mode->vr_graph[i]); 1290 } 1291 1292 static void 1293 voodoofb_set_videomode(struct voodoofb_softc *sc, 1294 const struct videomode *vm) 1295 { 1296 uint32_t miscinit0 = 0; 1297 int vidpll, fout; 1298 uint32_t vp, vidproc = VIDPROCDEFAULT; 1299 uint32_t bpp = 1; /* for now */ 1300 uint32_t bytes_per_row = vm->hdisplay * bpp; 1301 1302 sc->bits_per_pixel = bpp << 3; 1303 sc->width = vm->hdisplay; 1304 sc->height = vm->vdisplay; 1305 sc->linebytes = bytes_per_row; 1306 1307 voodoofb_setup_monitor(sc, vm); 1308 vp = voodoo3_read32(sc, VIDPROCCFG); 1309 1310 vidproc &= ~(0x1c0000); /* clear bits 18 to 20, bpp in vidproccfg */ 1311 /* enable bits 18 to 20 to the required bpp */ 1312 vidproc |= ((bpp - 1) << VIDCFG_PIXFMT_SHIFT); 1313 1314 vidpll = voodoofb_calc_pll(vm->dot_clock, &fout, 0); 1315 1316 #ifdef VOODOOFB_DEBUG 1317 printf("old vidproc: %08x\n", vp); 1318 printf("pll: %08x %d\n", vidpll, fout); 1319 #endif 1320 /* bit 10 of vidproccfg, is enabled or disabled as needed */ 1321 switch (bpp) { 1322 case 1: 1323 /* 1324 * bit 10 off for palettized modes only, off means 1325 * palette is used 1326 */ 1327 vidproc &= ~(1 << 10); 1328 break; 1329 #if 0 1330 case 2: 1331 #if __POWERPC__ 1332 miscinit0 = 0xc0000000; 1333 #endif 1334 /* bypass palette for 16bit modes */ 1335 vidproc |= (1 << 10); 1336 break; 1337 case 4: 1338 #if __POWERPC__ 1339 miscinit0 = 0x40000000; 1340 #endif 1341 vidproc |= (1 << 10); /* Same for 32bit modes */ 1342 break; 1343 #endif 1344 default: 1345 printf("We support only 8 bit for now\n"); 1346 return; 1347 } 1348 1349 voodoofb_wait_idle(sc); 1350 1351 voodoo3_write32(sc, MISCINIT1, voodoo3_read32(sc, MISCINIT1) | 0x01); 1352 1353 voodoo3_make_room(sc, 4); 1354 voodoo3_write32(sc, VGAINIT0, 4928); 1355 voodoo3_write32(sc, DACMODE, 0); 1356 voodoo3_write32(sc, VIDDESKSTRIDE, bytes_per_row); 1357 voodoo3_write32(sc, PLLCTRL0, vidpll); 1358 1359 voodoo3_make_room(sc, 5); 1360 voodoo3_write32(sc, VIDSCREENSIZE, sc->width | (sc->height << 12)); 1361 voodoo3_write32(sc, VIDDESKSTART, 0); 1362 1363 vidproc &= ~VIDCFG_HWCURSOR_ENABLE; 1364 voodoo3_write32(sc, VIDPROCCFG, vidproc); 1365 1366 voodoo3_write32(sc, VGAINIT1, 0); 1367 voodoo3_write32(sc, MISCINIT0, miscinit0); 1368 #ifdef VOODOOFB_DEBUG 1369 printf("vidproc: %08x\n", vidproc); 1370 #endif 1371 voodoo3_make_room(sc, 8); 1372 voodoo3_write32(sc, SRCBASE, 0); 1373 voodoo3_write32(sc, DSTBASE, 0); 1374 voodoo3_write32(sc, COMMANDEXTRA_2D, 0); 1375 voodoo3_write32(sc, CLIP0MIN, 0); 1376 voodoo3_write32(sc, CLIP0MAX, 0x0fff0fff); 1377 voodoo3_write32(sc, CLIP1MIN, 0); 1378 voodoo3_write32(sc, CLIP1MAX, 0x0fff0fff); 1379 voodoo3_write32(sc, SRCXY, 0); 1380 voodoofb_wait_idle(sc); 1381 printf("%s: switched to %dx%d, %d bit\n", device_xname(sc->sc_dev), 1382 sc->width, sc->height, sc->bits_per_pixel); 1383 } 1384 1385 static void 1386 voodoofb_init(struct voodoofb_softc *sc) 1387 { 1388 /* XXX */ 1389 uint32_t vgainit0 = 0; 1390 uint32_t vidcfg = 0; 1391 1392 #ifdef VOODOOFB_DEBUG 1393 printf("initializing engine..."); 1394 #endif 1395 vgainit0 = voodoo3_read32(sc, VGAINIT0); 1396 #ifdef VOODOOFB_DEBUG 1397 printf("vga: %08x", vgainit0); 1398 #endif 1399 vgainit0 |= 1400 VGAINIT0_8BIT_DAC | 1401 VGAINIT0_EXT_ENABLE | 1402 VGAINIT0_WAKEUP_3C3 | 1403 VGAINIT0_ALT_READBACK | 1404 VGAINIT0_EXTSHIFTOUT; 1405 1406 vidcfg = voodoo3_read32(sc, VIDPROCCFG); 1407 #ifdef VOODOOFB_DEBUG 1408 printf(" vidcfg: %08x\n", vidcfg); 1409 #endif 1410 vidcfg |= 1411 VIDCFG_VIDPROC_ENABLE | 1412 VIDCFG_DESK_ENABLE; 1413 vidcfg &= ~VIDCFG_HWCURSOR_ENABLE; 1414 1415 voodoo3_make_room(sc, 2); 1416 1417 voodoo3_write32(sc, VGAINIT0, vgainit0); 1418 voodoo3_write32(sc, VIDPROCCFG, vidcfg); 1419 1420 voodoo3_make_room(sc, 8); 1421 voodoo3_write32(sc, SRCBASE, 0); 1422 voodoo3_write32(sc, DSTBASE, 0); 1423 voodoo3_write32(sc, COMMANDEXTRA_2D, 0); 1424 voodoo3_write32(sc, CLIP0MIN, 0); 1425 voodoo3_write32(sc, CLIP0MAX, 0x1fff1fff); 1426 voodoo3_write32(sc, CLIP1MIN, 0); 1427 voodoo3_write32(sc, CLIP1MAX, 0x1fff1fff); 1428 voodoo3_write32(sc, SRCXY, 0); 1429 1430 voodoofb_wait_idle(sc); 1431 } 1432