1 /* $NetBSD: voodoofb.c,v 1.28 2011/10/08 00:22:25 kiyohara 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 1.28 2011/10/08 00:22:25 kiyohara 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 bool voodoofb_is_console(struct voodoofb_softc *); 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 prop_dictionary_t dict; 316 int linebytes, depth; 317 #endif 318 uint32_t bg, fg, ul; 319 320 sc->sc_dev = self; 321 322 sc->sc_mode = WSDISPLAYIO_MODE_EMUL; 323 sc->sc_pc = pa->pa_pc; 324 sc->sc_pcitag = pa->pa_tag; 325 sc->sc_dacw = -1; 326 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo)); 327 printf(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class)); 328 329 sc->sc_memt = pa->pa_memt; 330 sc->sc_iot = pa->pa_iot; 331 sc->sc_pa = *pa; 332 333 /* the framebuffer */ 334 if (pci_mapreg_map(pa, 0x14, PCI_MAPREG_TYPE_MEM, 335 BUS_SPACE_MAP_CACHEABLE | BUS_SPACE_MAP_PREFETCHABLE | 336 BUS_SPACE_MAP_LINEAR, 337 &sc->sc_fbt, &sc->sc_fbh, &sc->sc_fb, &sc->sc_fbsize)) { 338 aprint_error_dev(self, "failed to map the frame buffer.\n"); 339 } 340 341 /* memory-mapped registers */ 342 if (pci_mapreg_map(pa, 0x10, PCI_MAPREG_TYPE_MEM, 0, 343 &sc->sc_regt, &sc->sc_regh, &sc->sc_regs, &sc->sc_regsize)) { 344 aprint_error_dev(self, "failed to map memory-mapped registers.\n"); 345 } 346 347 /* IO-mapped registers */ 348 if (pci_mapreg_map(pa, 0x18, PCI_MAPREG_TYPE_IO, 0, 349 &sc->sc_ioregt, &sc->sc_ioregh, &sc->sc_ioreg, 350 &sc->sc_ioregsize)) { 351 aprint_error_dev(self, "failed to map IO-mapped registers.\n"); 352 } 353 voodoofb_init(sc); 354 355 /* we should read these from the chip instead of depending on OF */ 356 width = height = -1; 357 358 #ifdef HAVE_OPENFIRMWARE 359 dict = device_properties(self); 360 if (!prop_dictionary_get_uint32(dict, "width", &width)) { 361 aprint_error_dev(self, "no width property\n"); 362 return; 363 } 364 if (!prop_dictionary_get_uint32(dict, "height", &height)) { 365 aprint_error_dev(self, "no height property\n"); 366 return; 367 } 368 if (!prop_dictionary_get_uint32(dict, "depth", &depth)) { 369 aprint_error_dev(self, "no depth property\n"); 370 return; 371 } 372 linebytes = width; /* XXX */ 373 374 if (width == -1 || height == -1) 375 return; 376 377 sc->width = width; 378 sc->height = height; 379 sc->bits_per_pixel = depth; 380 sc->linebytes = linebytes; 381 printf("%s: initial resolution %dx%d, %d bit\n", device_xname(self), 382 sc->width, sc->height, sc->bits_per_pixel); 383 #endif 384 385 /* XXX this should at least be configurable via kernel config */ 386 if ((sc->sc_videomode = pick_mode_by_ref(1024, 768, 60)) != NULL) 387 voodoofb_set_videomode(sc, sc->sc_videomode); 388 389 vcons_init(&sc->vd, sc, &voodoofb_defaultscreen, &voodoofb_accessops); 390 sc->vd.init_screen = voodoofb_init_screen; 391 392 console = voodoofb_is_console(sc); 393 394 ri = &voodoofb_console_screen.scr_ri; 395 if (console) { 396 vcons_init_screen(&sc->vd, &voodoofb_console_screen, 1, 397 &defattr); 398 voodoofb_console_screen.scr_flags |= VCONS_SCREEN_IS_STATIC; 399 400 voodoofb_defaultscreen.textops = &ri->ri_ops; 401 voodoofb_defaultscreen.capabilities = ri->ri_caps; 402 voodoofb_defaultscreen.nrows = ri->ri_rows; 403 voodoofb_defaultscreen.ncols = ri->ri_cols; 404 wsdisplay_cnattach(&voodoofb_defaultscreen, ri, 0, 0, defattr); 405 } else { 406 /* 407 * since we're not the console we can postpone the rest 408 * until someone actually allocates a screen for us 409 */ 410 voodoofb_set_videomode(sc, sc->sc_videomode); 411 } 412 413 printf("%s: %d MB aperture at 0x%08x, %d MB registers at 0x%08x\n", 414 device_xname(self), (u_int)(sc->sc_fbsize >> 20), 415 (u_int)sc->sc_fb, (u_int)(sc->sc_regsize >> 20), 416 (u_int)sc->sc_regs); 417 #ifdef VOODOOFB_DEBUG 418 printf("fb: %08lx\n", (ulong)ri->ri_bits); 419 #endif 420 421 j = 0; 422 for (i = 0; i < 256; i++) { 423 voodoofb_putpalreg(sc, i, rasops_cmap[j], rasops_cmap[j + 1], 424 rasops_cmap[j + 2]); 425 j += 3; 426 } 427 428 #ifdef VOODOOFB_ENABLE_INTR 429 /* Interrupt. We don't use it for anything yet */ 430 if (pci_intr_map(pa, &ih)) { 431 aprint_error_dev(self, "failed to map interrupt\n"); 432 return; 433 } 434 435 intrstr = pci_intr_string(sc->sc_pc, ih); 436 sc->sc_ih = pci_intr_establish(sc->sc_pc, ih, IPL_NET, voodoofb_intr, 437 sc); 438 if (sc->sc_ih == NULL) { 439 aprint_error_dev(self, "failed to establish interrupt"); 440 if (intrstr != NULL) 441 aprint_error(" at %s", intrstr); 442 aprint_error("\n"); 443 return; 444 } 445 aprint_normal_dev(self, "interrupting at %s\n", intrstr); 446 #endif 447 448 rasops_unpack_attr(defattr, &fg, &bg, &ul); 449 sc->sc_bg = ri->ri_devcmap[bg]; 450 voodoofb_clearscreen(sc); 451 452 if (console) 453 vcons_replay_msgbuf(&voodoofb_console_screen); 454 aa.console = console; 455 aa.scrdata = &voodoofb_screenlist; 456 aa.accessops = &voodoofb_accessops; 457 aa.accesscookie = &sc->vd; 458 459 config_found(self, &aa, wsemuldisplaydevprint); 460 config_found_ia(self, "drm", aux, voodoofb_drm_print); 461 } 462 463 static int 464 voodoofb_drm_print(void *opaque, const char *pnp) 465 { 466 if (pnp) 467 aprint_normal("drm at %s", pnp); 468 469 return UNCONF; 470 } 471 472 static int 473 voodoofb_drm_unmap(struct voodoofb_softc *sc) 474 { 475 printf("%s: releasing bus resources\n", device_xname(sc->sc_dev)); 476 477 bus_space_unmap(sc->sc_ioregt, sc->sc_ioregh, sc->sc_ioregsize); 478 bus_space_unmap(sc->sc_regt, sc->sc_regh, sc->sc_regsize); 479 bus_space_unmap(sc->sc_fbt, sc->sc_fbh, sc->sc_fbsize); 480 481 return 0; 482 } 483 484 static int 485 voodoofb_drm_map(struct voodoofb_softc *sc) 486 { 487 if (pci_mapreg_map(&sc->sc_pa, 0x14, PCI_MAPREG_TYPE_MEM, 488 BUS_SPACE_MAP_CACHEABLE | BUS_SPACE_MAP_PREFETCHABLE | 489 BUS_SPACE_MAP_LINEAR, 490 &sc->sc_fbt, &sc->sc_fbh, &sc->sc_fb, &sc->sc_fbsize)) { 491 aprint_error_dev(sc->sc_dev, "failed to map the frame buffer.\n"); 492 } 493 494 /* memory-mapped registers */ 495 if (pci_mapreg_map(&sc->sc_pa, 0x10, PCI_MAPREG_TYPE_MEM, 0, 496 &sc->sc_regt, &sc->sc_regh, &sc->sc_regs, &sc->sc_regsize)) { 497 aprint_error_dev(sc->sc_dev, "failed to map memory-mapped registers.\n"); 498 } 499 500 /* IO-mapped registers */ 501 if (pci_mapreg_map(&sc->sc_pa, 0x18, PCI_MAPREG_TYPE_IO, 0, 502 &sc->sc_ioregt, &sc->sc_ioregh, &sc->sc_ioreg, 503 &sc->sc_ioregsize)) { 504 aprint_error_dev(sc->sc_dev, "failed to map IO-mapped registers.\n"); 505 } 506 507 voodoofb_init(sc); 508 /* XXX this should at least be configurable via kernel config */ 509 voodoofb_set_videomode(sc, sc->sc_videomode); 510 511 return 0; 512 } 513 514 static int 515 voodoofb_putpalreg(struct voodoofb_softc *sc, uint8_t index, uint8_t r, 516 uint8_t g, uint8_t b) 517 { 518 uint32_t color; 519 520 sc->sc_cmap_red[index] = r; 521 sc->sc_cmap_green[index] = g; 522 sc->sc_cmap_blue[index] = b; 523 524 color = (r << 16) | (g << 8) | b; 525 voodoo3_make_room(sc, 2); 526 voodoo3_write32(sc, DACADDR, index); 527 voodoo3_write32(sc, DACDATA, color); 528 529 return 0; 530 } 531 532 static int 533 voodoofb_putcmap(struct voodoofb_softc *sc, struct wsdisplay_cmap *cm) 534 { 535 u_char *r, *g, *b; 536 u_int index = cm->index; 537 u_int count = cm->count; 538 int i, error; 539 u_char rbuf[256], gbuf[256], bbuf[256]; 540 541 #ifdef VOODOOFB_DEBUG 542 printf("putcmap: %d %d\n",index, count); 543 #endif 544 if (cm->index >= 256 || cm->count > 256 || 545 (cm->index + cm->count) > 256) 546 return EINVAL; 547 error = copyin(cm->red, &rbuf[index], count); 548 if (error) 549 return error; 550 error = copyin(cm->green, &gbuf[index], count); 551 if (error) 552 return error; 553 error = copyin(cm->blue, &bbuf[index], count); 554 if (error) 555 return error; 556 557 memcpy(&sc->sc_cmap_red[index], &rbuf[index], count); 558 memcpy(&sc->sc_cmap_green[index], &gbuf[index], count); 559 memcpy(&sc->sc_cmap_blue[index], &bbuf[index], count); 560 561 r = &sc->sc_cmap_red[index]; 562 g = &sc->sc_cmap_green[index]; 563 b = &sc->sc_cmap_blue[index]; 564 565 for (i = 0; i < count; i++) { 566 voodoofb_putpalreg(sc, index, *r, *g, *b); 567 index++; 568 r++, g++, b++; 569 } 570 return 0; 571 } 572 573 static int 574 voodoofb_getcmap(struct voodoofb_softc *sc, struct wsdisplay_cmap *cm) 575 { 576 u_int index = cm->index; 577 u_int count = cm->count; 578 int error; 579 580 if (index >= 255 || count > 256 || index + count > 256) 581 return EINVAL; 582 583 error = copyout(&sc->sc_cmap_red[index], cm->red, count); 584 if (error) 585 return error; 586 error = copyout(&sc->sc_cmap_green[index], cm->green, count); 587 if (error) 588 return error; 589 error = copyout(&sc->sc_cmap_blue[index], cm->blue, count); 590 if (error) 591 return error; 592 593 return 0; 594 } 595 596 static bool 597 voodoofb_is_console(struct voodoofb_softc *sc) 598 { 599 #ifdef HAVE_OPENFIRMWARE 600 prop_dictionary_t dict; 601 bool console; 602 603 dict = device_properties(sc->sc_dev); 604 prop_dictionary_get_bool(dict, "is_console", &console); 605 return console; 606 #else 607 /* XXX how do we know we're console on i386? */ 608 return true; 609 #endif 610 } 611 612 static void 613 voodoofb_clearscreen(struct voodoofb_softc *sc) 614 { 615 voodoofb_rectfill(sc, 0, 0, sc->width, sc->height, sc->sc_bg); 616 } 617 618 /* 619 * wsdisplay_emulops 620 */ 621 622 static void 623 voodoofb_cursor(void *cookie, int on, int row, int col) 624 { 625 struct rasops_info *ri = cookie; 626 struct vcons_screen *scr = ri->ri_hw; 627 struct voodoofb_softc *sc = scr->scr_cookie; 628 int x, y, wi, he; 629 630 wi = ri->ri_font->fontwidth; 631 he = ri->ri_font->fontheight; 632 633 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 634 x = ri->ri_ccol * wi + ri->ri_xorigin; 635 y = ri->ri_crow * he + ri->ri_yorigin; 636 if (ri->ri_flg & RI_CURSOR) { 637 voodoofb_rectinvert(sc, x, y, wi, he); 638 ri->ri_flg &= ~RI_CURSOR; 639 } 640 ri->ri_crow = row; 641 ri->ri_ccol = col; 642 if (on) 643 { 644 x = ri->ri_ccol * wi + ri->ri_xorigin; 645 y = ri->ri_crow * he + ri->ri_yorigin; 646 voodoofb_rectinvert(sc, x, y, wi, he); 647 ri->ri_flg |= RI_CURSOR; 648 } 649 } else { 650 ri->ri_flg &= ~RI_CURSOR; 651 ri->ri_crow = row; 652 ri->ri_ccol = col; 653 } 654 } 655 656 #if 0 657 int 658 voodoofb_mapchar(void *cookie, int uni, u_int *index) 659 { 660 return 0; 661 } 662 #endif 663 664 static void 665 voodoofb_putchar(void *cookie, int row, int col, u_int c, long attr) 666 { 667 struct rasops_info *ri = cookie; 668 struct wsdisplay_font *font = PICK_FONT(ri, c); 669 struct vcons_screen *scr = ri->ri_hw; 670 struct voodoofb_softc *sc = scr->scr_cookie; 671 672 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 673 uint8_t *data; 674 int fg, bg, uc, i; 675 int x, y, wi, he; 676 677 wi = font->fontwidth; 678 he = font->fontheight; 679 680 if (!CHAR_IN_FONT(c, font)) 681 return; 682 bg = (u_char)ri->ri_devcmap[(attr >> 16) & 0xf]; 683 fg = (u_char)ri->ri_devcmap[(attr >> 24) & 0xf]; 684 x = ri->ri_xorigin + col * wi; 685 y = ri->ri_yorigin + row * he; 686 if (c == 0x20) { 687 voodoofb_rectfill(sc, x, y, wi, he, bg); 688 } else { 689 uc = c - font->firstchar; 690 data = (uint8_t *)font->data + uc * 691 ri->ri_fontscale; 692 voodoofb_setup_mono(sc, x, y, wi, he, fg, bg); 693 for (i = 0; i < he; i++) { 694 voodoofb_feed_line(sc, font->stride, data); 695 data += font->stride; 696 } 697 } 698 } 699 } 700 701 static void 702 voodoofb_copycols(void *cookie, int row, int srccol, int dstcol, int ncols) 703 { 704 struct rasops_info *ri = cookie; 705 struct vcons_screen *scr = ri->ri_hw; 706 struct voodoofb_softc *sc = scr->scr_cookie; 707 int32_t xs, xd, y, width, height; 708 709 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 710 xs = ri->ri_xorigin + ri->ri_font->fontwidth * srccol; 711 xd = ri->ri_xorigin + ri->ri_font->fontwidth * dstcol; 712 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 713 width = ri->ri_font->fontwidth * ncols; 714 height = ri->ri_font->fontheight; 715 voodoofb_bitblt(sc, xs, y, xd, y, width, height); 716 } 717 } 718 719 static void 720 voodoofb_erasecols(void *cookie, int row, int startcol, int ncols, 721 long fillattr) 722 { 723 struct rasops_info *ri = cookie; 724 struct vcons_screen *scr = ri->ri_hw; 725 struct voodoofb_softc *sc = scr->scr_cookie; 726 int32_t x, y, width, height, fg, bg, ul; 727 728 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 729 x = ri->ri_xorigin + ri->ri_font->fontwidth * startcol; 730 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 731 width = ri->ri_font->fontwidth * ncols; 732 height = ri->ri_font->fontheight; 733 rasops_unpack_attr(fillattr, &fg, &bg, &ul); 734 735 voodoofb_rectfill(sc, x, y, width, height, ri->ri_devcmap[bg]); 736 } 737 } 738 739 static void 740 voodoofb_copyrows(void *cookie, int srcrow, int dstrow, int nrows) 741 { 742 struct rasops_info *ri = cookie; 743 struct vcons_screen *scr = ri->ri_hw; 744 struct voodoofb_softc *sc = scr->scr_cookie; 745 int32_t x, ys, yd, width, height; 746 747 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 748 x = ri->ri_xorigin; 749 ys = ri->ri_yorigin + ri->ri_font->fontheight * srcrow; 750 yd = ri->ri_yorigin + ri->ri_font->fontheight * dstrow; 751 width = ri->ri_emuwidth; 752 height = ri->ri_font->fontheight * nrows; 753 voodoofb_bitblt(sc, x, ys, x, yd, width, height); 754 } 755 } 756 757 static void 758 voodoofb_eraserows(void *cookie, int row, int nrows, long fillattr) 759 { 760 struct rasops_info *ri = cookie; 761 struct vcons_screen *scr = ri->ri_hw; 762 struct voodoofb_softc *sc = scr->scr_cookie; 763 int32_t x, y, width, height, fg, bg, ul; 764 765 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 766 rasops_unpack_attr(fillattr, &fg, &bg, &ul); 767 if ((row == 0) && (nrows == ri->ri_rows)) { 768 /* clear the whole screen */ 769 voodoofb_rectfill(sc, 0, 0, ri->ri_width, 770 ri->ri_height, ri->ri_devcmap[bg]); 771 } else { 772 x = ri->ri_xorigin; 773 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 774 width = ri->ri_emuwidth; 775 height = ri->ri_font->fontheight * nrows; 776 voodoofb_rectfill(sc, x, y, width, height, 777 ri->ri_devcmap[bg]); 778 } 779 } 780 } 781 782 static void 783 voodoofb_bitblt(struct voodoofb_softc *sc, int xs, int ys, int xd, int yd, int width, int height) 784 { 785 uint32_t fmt, blitcmd; 786 787 fmt = sc->linebytes | ((sc->bits_per_pixel + 788 ((sc->bits_per_pixel == 8) ? 0 : 8)) << 13); 789 blitcmd = COMMAND_2D_S2S_BITBLT | (ROP_COPY << 24); 790 791 if (xs <= xd) { 792 blitcmd |= BIT(14); 793 xs += (width - 1); 794 xd += (width - 1); 795 } 796 if (ys <= yd) { 797 blitcmd |= BIT(15); 798 ys += (height - 1); 799 yd += (height - 1); 800 } 801 voodoo3_make_room(sc, 6); 802 803 voodoo3_write32(sc, SRCFORMAT, fmt); 804 voodoo3_write32(sc, DSTFORMAT, fmt); 805 voodoo3_write32(sc, DSTSIZE, width | (height << 16)); 806 voodoo3_write32(sc, DSTXY, xd | (yd << 16)); 807 voodoo3_write32(sc, SRCXY, xs | (ys << 16)); 808 voodoo3_write32(sc, COMMAND_2D, blitcmd | SST_2D_GO); 809 } 810 811 static void 812 voodoofb_rectfill(struct voodoofb_softc *sc, int x, int y, int width, 813 int height, int colour) 814 { 815 uint32_t fmt, col; 816 817 col = (colour << 24) | (colour << 16) | (colour << 8) | colour; 818 fmt = sc->linebytes | ((sc->bits_per_pixel + 819 ((sc->bits_per_pixel == 8) ? 0 : 8)) << 13); 820 821 voodoo3_make_room(sc, 6); 822 voodoo3_write32(sc, DSTFORMAT, fmt); 823 voodoo3_write32(sc, COLORFORE, colour); 824 voodoo3_write32(sc, COLORBACK, colour); 825 voodoo3_write32(sc, COMMAND_2D, COMMAND_2D_FILLRECT | (ROP_COPY << 24)); 826 voodoo3_write32(sc, DSTSIZE, width | (height << 16)); 827 voodoo3_write32(sc, LAUNCH_2D, x | (y << 16)); 828 } 829 830 static void 831 voodoofb_rectinvert(struct voodoofb_softc *sc, int x, int y, int width, 832 int height) 833 { 834 uint32_t fmt; 835 836 fmt = sc->linebytes | ((sc->bits_per_pixel + 837 ((sc->bits_per_pixel == 8) ? 0 : 8)) << 13); 838 839 voodoo3_make_room(sc, 6); 840 voodoo3_write32(sc, DSTFORMAT, fmt); 841 voodoo3_write32(sc, COMMAND_2D, COMMAND_2D_FILLRECT | 842 (ROP_INVERT << 24)); 843 voodoo3_write32(sc, DSTSIZE, width | (height << 16)); 844 voodoo3_write32(sc, DSTXY, x | (y << 16)); 845 voodoo3_write32(sc, LAUNCH_2D, x | (y << 16)); 846 } 847 848 static void 849 voodoofb_setup_mono(struct voodoofb_softc *sc, int xd, int yd, int width, int height, uint32_t fg, 850 uint32_t bg) 851 { 852 uint32_t dfmt, sfmt = sc->linebytes; 853 854 dfmt = sc->linebytes | ((sc->bits_per_pixel + 855 ((sc->bits_per_pixel == 8) ? 0 : 8)) << 13); 856 857 voodoo3_make_room(sc, 9); 858 voodoo3_write32(sc, SRCFORMAT, sfmt); 859 voodoo3_write32(sc, DSTFORMAT, dfmt); 860 voodoo3_write32(sc, COLORFORE, fg); 861 voodoo3_write32(sc, COLORBACK, bg); 862 voodoo3_write32(sc, DSTSIZE, width | (height << 16)); 863 voodoo3_write32(sc, DSTXY, xd | (yd << 16)); 864 voodoo3_write32(sc, SRCXY, 0); 865 voodoo3_write32(sc, COMMAND_2D, COMMAND_2D_H2S_BITBLT | 866 (ROP_COPY << 24) | SST_2D_GO); 867 868 /* now feed the data into the chip */ 869 } 870 871 static void 872 voodoofb_feed_line(struct voodoofb_softc *sc, int count, uint8_t *data) 873 { 874 int i; 875 uint32_t latch = 0, bork; 876 int shift = 0; 877 878 voodoo3_make_room(sc, count); 879 for (i = 0; i < count; i++) { 880 bork = data[i]; 881 latch |= (bork << shift); 882 if (shift == 24) { 883 voodoo3_write32(sc, LAUNCH_2D, latch); 884 latch = 0; 885 shift = 0; 886 } else 887 shift += 8; 888 } 889 if (shift != 24) 890 voodoo3_write32(sc, LAUNCH_2D, latch); 891 } 892 893 #if 0 894 static int 895 voodoofb_allocattr(void *cookie, int fg, int bg, int flags, long *attrp) 896 { 897 898 return 0; 899 } 900 #endif 901 902 /* 903 * wsdisplay_accessops 904 */ 905 906 static int 907 voodoofb_ioctl(void *v, void *vs, u_long cmd, void *data, int flag, 908 struct lwp *l) 909 { 910 struct vcons_data *vd = v; 911 struct voodoofb_softc *sc = vd->cookie; 912 struct wsdisplay_fbinfo *wdf; 913 struct vcons_screen *ms = vd->active; 914 915 switch (cmd) { 916 case WSDISPLAYIO_GTYPE: 917 *(u_int *)data = WSDISPLAY_TYPE_PCIMISC; 918 return 0; 919 920 case WSDISPLAYIO_GINFO: 921 wdf = (void *)data; 922 wdf->height = ms->scr_ri.ri_height; 923 wdf->width = ms->scr_ri.ri_width; 924 wdf->depth = ms->scr_ri.ri_depth; 925 wdf->cmsize = 256; 926 return 0; 927 928 case WSDISPLAYIO_GETCMAP: 929 return voodoofb_getcmap(sc, 930 (struct wsdisplay_cmap *)data); 931 932 case WSDISPLAYIO_PUTCMAP: 933 return voodoofb_putcmap(sc, 934 (struct wsdisplay_cmap *)data); 935 936 /* PCI config read/write passthrough. */ 937 case PCI_IOC_CFGREAD: 938 case PCI_IOC_CFGWRITE: 939 return pci_devioctl(sc->sc_pc, sc->sc_pcitag, 940 cmd, data, flag, l); 941 942 case WSDISPLAYIO_GET_BUSID: 943 return wsdisplayio_busid_pci(sc->sc_dev, sc->sc_pc, 944 sc->sc_pcitag, data); 945 946 case WSDISPLAYIO_SMODE: { 947 int new_mode = *(int*)data; 948 if (new_mode != sc->sc_mode) { 949 sc->sc_mode = new_mode; 950 if (new_mode == WSDISPLAYIO_MODE_EMUL) { 951 voodoofb_drm_map(sc); 952 int i; 953 954 /* restore the palette */ 955 for (i = 0; i < 256; i++) { 956 voodoofb_putpalreg(sc, 957 i, 958 sc->sc_cmap_red[i], 959 sc->sc_cmap_green[i], 960 sc->sc_cmap_blue[i]); 961 } 962 vcons_redraw_screen(ms); 963 } else 964 voodoofb_drm_unmap(sc); 965 } 966 } 967 return 0; 968 } 969 return EPASSTHROUGH; 970 } 971 972 static paddr_t 973 voodoofb_mmap(void *v, void *vs, off_t offset, int prot) 974 { 975 struct vcons_data *vd = v; 976 struct voodoofb_softc *sc = vd->cookie; 977 paddr_t pa; 978 979 /* 'regular' framebuffer mmap()ing */ 980 if (offset < sc->sc_fbsize) { 981 pa = bus_space_mmap(sc->sc_fbt, offset, 0, prot, 982 BUS_SPACE_MAP_LINEAR); 983 return pa; 984 } 985 986 /* 987 * restrict all other mappings to processes with superuser privileges 988 * or the kernel itself 989 */ 990 if (kauth_authorize_generic(kauth_cred_get(), KAUTH_GENERIC_ISSUSER, 991 NULL) != 0) { 992 aprint_error_dev(sc->sc_dev, "mmap() rejected.\n"); 993 return -1; 994 } 995 996 if ((offset >= sc->sc_fb) && (offset < (sc->sc_fb + sc->sc_fbsize))) { 997 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 998 BUS_SPACE_MAP_LINEAR); 999 return pa; 1000 } 1001 1002 if ((offset >= sc->sc_regs) && (offset < (sc->sc_regs + 1003 sc->sc_regsize))) { 1004 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 1005 BUS_SPACE_MAP_LINEAR); 1006 return pa; 1007 } 1008 1009 #ifdef PCI_MAGIC_IO_RANGE 1010 /* allow mapping of IO space */ 1011 if ((offset >= PCI_MAGIC_IO_RANGE) &&\ 1012 (offset < PCI_MAGIC_IO_RANGE + 0x10000)) { 1013 pa = bus_space_mmap(sc->sc_iot, offset - PCI_MAGIC_IO_RANGE, 1014 0, prot, BUS_SPACE_MAP_LINEAR); 1015 return pa; 1016 } 1017 #endif 1018 1019 #ifdef OFB_ALLOW_OTHERS 1020 if (offset >= 0x80000000) { 1021 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 1022 BUS_SPACE_MAP_LINEAR); 1023 return pa; 1024 } 1025 #endif 1026 return -1; 1027 } 1028 1029 static void 1030 voodoofb_init_screen(void *cookie, struct vcons_screen *scr, 1031 int existing, long *defattr) 1032 { 1033 struct voodoofb_softc *sc = cookie; 1034 struct rasops_info *ri = &scr->scr_ri; 1035 1036 ri->ri_depth = sc->bits_per_pixel; 1037 ri->ri_width = sc->width; 1038 ri->ri_height = sc->height; 1039 ri->ri_stride = sc->width; 1040 ri->ri_flg = RI_CENTER | RI_FULLCLEAR; 1041 1042 ri->ri_bits = bus_space_vaddr(sc->sc_fbt, sc->sc_fbh); 1043 1044 #ifdef VOODOOFB_DEBUG 1045 printf("addr: %08lx\n", (ulong)ri->ri_bits); 1046 #endif 1047 if (existing) { 1048 ri->ri_flg |= RI_CLEAR; 1049 } 1050 1051 rasops_init(ri, sc->height/8, sc->width/8); 1052 ri->ri_caps = WSSCREEN_WSCOLORS; 1053 1054 rasops_reconfig(ri, sc->height / ri->ri_font->fontheight, 1055 sc->width / ri->ri_font->fontwidth); 1056 1057 ri->ri_hw = scr; 1058 ri->ri_ops.copyrows = voodoofb_copyrows; 1059 ri->ri_ops.copycols = voodoofb_copycols; 1060 ri->ri_ops.eraserows = voodoofb_eraserows; 1061 ri->ri_ops.erasecols = voodoofb_erasecols; 1062 ri->ri_ops.cursor = voodoofb_cursor; 1063 ri->ri_ops.putchar = voodoofb_putchar; 1064 } 1065 1066 #if 0 1067 int 1068 voodoofb_load_font(void *v, void *cookie, struct wsdisplay_font *data) 1069 { 1070 1071 return 0; 1072 } 1073 #endif 1074 1075 #ifdef VOODOOFB_ENABLE_INTR 1076 static int 1077 voodoofb_intr(void *arg) 1078 { 1079 struct voodoofb_softc *sc = arg; 1080 1081 voodoo3_write32(sc, V3_STATUS, 0); /* clear interrupts */ 1082 return 1; 1083 } 1084 #endif 1085 1086 /* video mode stuff */ 1087 1088 #define REFFREQ 14318 /* .18 */ 1089 1090 #define ABS(a) ((a < 0) ? -a : a) 1091 1092 static int 1093 voodoofb_calc_pll(int freq, int *f_out, int isBanshee) 1094 { 1095 int m, n, k, best_m, best_n, best_k, f_cur, best_error; 1096 int minm, maxm; 1097 1098 best_error = freq; 1099 best_n = best_m = best_k = 0; 1100 1101 if (isBanshee) { 1102 minm = 24; 1103 maxm = 24; 1104 } else { 1105 minm = 1; 1106 maxm = 57; 1107 /* This used to be 64, alas it seems the last 8 (funny that ?) 1108 * values cause jittering at lower resolutions. I've not done 1109 * any calculations to what the adjustment affects clock ranges, 1110 * but I can still run at 1600x1200@75Hz */ 1111 } 1112 for (n = 1; n < 256; n++) { 1113 f_cur = REFFREQ * (n + 2); 1114 if (f_cur < freq) { 1115 f_cur = f_cur / 3; 1116 if (freq - f_cur < best_error) { 1117 best_error = freq - f_cur; 1118 best_n = n; 1119 best_m = 1; 1120 best_k = 0; 1121 continue; 1122 } 1123 } 1124 for (m = minm; m < maxm; m++) { 1125 for (k = 0; k < 4; k++) { 1126 f_cur = REFFREQ * (n + 2) / (m + 2) / (1 << k); 1127 if (ABS(f_cur - freq) < best_error) { 1128 best_error = ABS(f_cur - freq); 1129 best_n = n; 1130 best_m = m; 1131 best_k = k; 1132 } 1133 } 1134 } 1135 } 1136 n = best_n; 1137 m = best_m; 1138 k = best_k; 1139 *f_out = REFFREQ * (n + 2) / (m + 2) / (1 << k); 1140 return ( n << 8) | (m << 2) | k; 1141 } 1142 1143 static void 1144 voodoofb_setup_monitor(struct voodoofb_softc *sc, const struct videomode *vm) 1145 { 1146 struct voodoo_regs mod; 1147 struct voodoo_regs *mode; 1148 uint32_t horizontal_display_end, horizontal_sync_start, 1149 horizontal_sync_end, horizontal_total, 1150 horizontal_blanking_start, horizontal_blanking_end; 1151 1152 uint32_t vertical_display_enable_end, vertical_sync_start, 1153 vertical_sync_end, vertical_total, vertical_blanking_start, 1154 vertical_blanking_end; 1155 1156 uint32_t wd; // CRTC offset 1157 1158 int i; 1159 1160 uint8_t misc; 1161 1162 memset(&mod, 0, sizeof(mode)); 1163 1164 mode = &mod; 1165 1166 wd = (vm->hdisplay >> 3) - 1; 1167 horizontal_display_end = (vm->hdisplay >> 3) - 1; 1168 horizontal_sync_start = (vm->hsync_start >> 3) - 1; 1169 horizontal_sync_end = (vm->hsync_end >> 3) - 1; 1170 horizontal_total = (vm->htotal >> 3) - 1; 1171 horizontal_blanking_start = horizontal_display_end; 1172 horizontal_blanking_end = horizontal_total; 1173 1174 vertical_display_enable_end = vm->vdisplay - 1; 1175 vertical_sync_start = vm->vsync_start; // - 1; 1176 vertical_sync_end = vm->vsync_end; // - 1; 1177 vertical_total = vm->vtotal - 2; 1178 vertical_blanking_start = vertical_display_enable_end; 1179 vertical_blanking_end = vertical_total; 1180 1181 misc = 0x0f | 1182 (vm->hdisplay < 400 ? 0xa0 : 1183 vm->hdisplay < 480 ? 0x60 : 1184 vm->hdisplay < 768 ? 0xe0 : 0x20); 1185 1186 mode->vr_seq[0] = 3; 1187 mode->vr_seq[1] = 1; 1188 mode->vr_seq[2] = 8; 1189 mode->vr_seq[3] = 0; 1190 mode->vr_seq[4] = 6; 1191 1192 /* crtc regs start */ 1193 mode->vr_crtc[0] = horizontal_total - 4; 1194 mode->vr_crtc[1] = horizontal_display_end; 1195 mode->vr_crtc[2] = horizontal_blanking_start; 1196 mode->vr_crtc[3] = 0x80 | (horizontal_blanking_end & 0x1f); 1197 mode->vr_crtc[4] = horizontal_sync_start; 1198 1199 mode->vr_crtc[5] = ((horizontal_blanking_end & 0x20) << 2) | 1200 (horizontal_sync_end & 0x1f); 1201 mode->vr_crtc[6] = vertical_total; 1202 mode->vr_crtc[7] = ((vertical_sync_start & 0x200) >> 2) | 1203 ((vertical_display_enable_end & 0x200) >> 3) | 1204 ((vertical_total & 0x200) >> 4) | 1205 0x10 | 1206 ((vertical_blanking_start & 0x100) >> 5) | 1207 ((vertical_sync_start & 0x100) >> 6) | 1208 ((vertical_display_enable_end & 0x100) >> 7) | 1209 ((vertical_total & 0x100) >> 8); 1210 1211 mode->vr_crtc[8] = 0; 1212 mode->vr_crtc[9] = 0x40 | 1213 ((vertical_blanking_start & 0x200) >> 4); 1214 1215 mode->vr_crtc[10] = 0; 1216 mode->vr_crtc[11] = 0; 1217 mode->vr_crtc[12] = 0; 1218 mode->vr_crtc[13] = 0; 1219 mode->vr_crtc[14] = 0; 1220 mode->vr_crtc[15] = 0; 1221 1222 mode->vr_crtc[16] = vertical_sync_start; 1223 mode->vr_crtc[17] = (vertical_sync_end & 0x0f) | 0x20; 1224 mode->vr_crtc[18] = vertical_display_enable_end; 1225 mode->vr_crtc[19] = wd; // CRTC offset 1226 mode->vr_crtc[20] = 0; 1227 mode->vr_crtc[21] = vertical_blanking_start; 1228 mode->vr_crtc[22] = vertical_blanking_end + 1; 1229 mode->vr_crtc[23] = 128; 1230 mode->vr_crtc[24] = 255; 1231 1232 /* overflow registers */ 1233 mode->vr_crtc[CRTC_HDISP_EXT] = 1234 (horizontal_total&0x100) >> 8 | 1235 (horizontal_display_end & 0x100) >> 6 | 1236 (horizontal_blanking_start & 0x100) >> 4 | 1237 (horizontal_blanking_end & 0x40) >> 1 | 1238 (horizontal_sync_start & 0x100) >> 2 | 1239 (horizontal_sync_end & 0x20) << 2; 1240 1241 mode->vr_crtc[CRTC_VDISP_EXT] = 1242 (vertical_total & 0x400) >> 10 | 1243 (vertical_display_enable_end & 0x400) >> 8 | 1244 (vertical_blanking_start & 0x400) >> 6 | 1245 (vertical_blanking_end & 0x400) >> 4; 1246 1247 /* attr regs start */ 1248 mode->vr_attr[0] = 0; 1249 mode->vr_attr[1] = 0; 1250 mode->vr_attr[2] = 0; 1251 mode->vr_attr[3] = 0; 1252 mode->vr_attr[4] = 0; 1253 mode->vr_attr[5] = 0; 1254 mode->vr_attr[6] = 0; 1255 mode->vr_attr[7] = 0; 1256 mode->vr_attr[8] = 0; 1257 mode->vr_attr[9] = 0; 1258 mode->vr_attr[10] = 0; 1259 mode->vr_attr[11] = 0; 1260 mode->vr_attr[12] = 0; 1261 mode->vr_attr[13] = 0; 1262 mode->vr_attr[14] = 0; 1263 mode->vr_attr[15] = 0; 1264 mode->vr_attr[16] = 1; 1265 mode->vr_attr[17] = 0; 1266 mode->vr_attr[18] = 15; 1267 mode->vr_attr[19] = 0; 1268 /* attr regs end */ 1269 1270 /* graph regs start */ 1271 mode->vr_graph[0] = 159; 1272 mode->vr_graph[1] = 127; 1273 mode->vr_graph[2] = 127; 1274 mode->vr_graph[3] = 131; 1275 mode->vr_graph[4] = 130; 1276 mode->vr_graph[5] = 142; 1277 mode->vr_graph[6] = 30; 1278 mode->vr_graph[7] = 245; 1279 mode->vr_graph[8] = 0; 1280 1281 vga_outb(sc, MISC_W, misc | 0x01); 1282 1283 for(i = 0; i < 5; i++) 1284 voodoo3_write_seq(sc, i, mode->vr_seq[i]); 1285 for (i = 0; i < CRTC_PCI_READBACK; i ++) 1286 voodoo3_write_crtc(sc, i, mode->vr_crtc[i]); 1287 for (i = 0; i < 0x14; i ++) 1288 voodoo3_write_attr(sc, i, mode->vr_attr[i]); 1289 for (i = 0; i < 0x09; i ++) 1290 voodoo3_write_gra(sc, i, mode->vr_graph[i]); 1291 } 1292 1293 static void 1294 voodoofb_set_videomode(struct voodoofb_softc *sc, 1295 const struct videomode *vm) 1296 { 1297 uint32_t miscinit0 = 0; 1298 int vidpll, fout; 1299 uint32_t vp, vidproc = VIDPROCDEFAULT; 1300 uint32_t bpp = 1; /* for now */ 1301 uint32_t bytes_per_row = vm->hdisplay * bpp; 1302 1303 sc->bits_per_pixel = bpp << 3; 1304 sc->width = vm->hdisplay; 1305 sc->height = vm->vdisplay; 1306 sc->linebytes = bytes_per_row; 1307 1308 voodoofb_setup_monitor(sc, vm); 1309 vp = voodoo3_read32(sc, VIDPROCCFG); 1310 1311 vidproc &= ~(0x1c0000); /* clear bits 18 to 20, bpp in vidproccfg */ 1312 /* enable bits 18 to 20 to the required bpp */ 1313 vidproc |= ((bpp - 1) << VIDCFG_PIXFMT_SHIFT); 1314 1315 vidpll = voodoofb_calc_pll(vm->dot_clock, &fout, 0); 1316 1317 #ifdef VOODOOFB_DEBUG 1318 printf("old vidproc: %08x\n", vp); 1319 printf("pll: %08x %d\n", vidpll, fout); 1320 #endif 1321 /* bit 10 of vidproccfg, is enabled or disabled as needed */ 1322 switch (bpp) { 1323 case 1: 1324 /* 1325 * bit 10 off for palettized modes only, off means 1326 * palette is used 1327 */ 1328 vidproc &= ~(1 << 10); 1329 break; 1330 #if 0 1331 case 2: 1332 #if __POWERPC__ 1333 miscinit0 = 0xc0000000; 1334 #endif 1335 /* bypass palette for 16bit modes */ 1336 vidproc |= (1 << 10); 1337 break; 1338 case 4: 1339 #if __POWERPC__ 1340 miscinit0 = 0x40000000; 1341 #endif 1342 vidproc |= (1 << 10); /* Same for 32bit modes */ 1343 break; 1344 #endif 1345 default: 1346 printf("We support only 8 bit for now\n"); 1347 return; 1348 } 1349 1350 voodoofb_wait_idle(sc); 1351 1352 voodoo3_write32(sc, MISCINIT1, voodoo3_read32(sc, MISCINIT1) | 0x01); 1353 1354 voodoo3_make_room(sc, 4); 1355 voodoo3_write32(sc, VGAINIT0, 4928); 1356 voodoo3_write32(sc, DACMODE, 0); 1357 voodoo3_write32(sc, VIDDESKSTRIDE, bytes_per_row); 1358 voodoo3_write32(sc, PLLCTRL0, vidpll); 1359 1360 voodoo3_make_room(sc, 5); 1361 voodoo3_write32(sc, VIDSCREENSIZE, sc->width | (sc->height << 12)); 1362 voodoo3_write32(sc, VIDDESKSTART, 0); 1363 1364 vidproc &= ~VIDCFG_HWCURSOR_ENABLE; 1365 voodoo3_write32(sc, VIDPROCCFG, vidproc); 1366 1367 voodoo3_write32(sc, VGAINIT1, 0); 1368 voodoo3_write32(sc, MISCINIT0, miscinit0); 1369 #ifdef VOODOOFB_DEBUG 1370 printf("vidproc: %08x\n", vidproc); 1371 #endif 1372 voodoo3_make_room(sc, 8); 1373 voodoo3_write32(sc, SRCBASE, 0); 1374 voodoo3_write32(sc, DSTBASE, 0); 1375 voodoo3_write32(sc, COMMANDEXTRA_2D, 0); 1376 voodoo3_write32(sc, CLIP0MIN, 0); 1377 voodoo3_write32(sc, CLIP0MAX, 0x0fff0fff); 1378 voodoo3_write32(sc, CLIP1MIN, 0); 1379 voodoo3_write32(sc, CLIP1MAX, 0x0fff0fff); 1380 voodoo3_write32(sc, SRCXY, 0); 1381 voodoofb_wait_idle(sc); 1382 printf("%s: switched to %dx%d, %d bit\n", device_xname(sc->sc_dev), 1383 sc->width, sc->height, sc->bits_per_pixel); 1384 } 1385 1386 static void 1387 voodoofb_init(struct voodoofb_softc *sc) 1388 { 1389 /* XXX */ 1390 uint32_t vgainit0 = 0; 1391 uint32_t vidcfg = 0; 1392 1393 #ifdef VOODOOFB_DEBUG 1394 printf("initializing engine..."); 1395 #endif 1396 vgainit0 = voodoo3_read32(sc, VGAINIT0); 1397 #ifdef VOODOOFB_DEBUG 1398 printf("vga: %08x", vgainit0); 1399 #endif 1400 vgainit0 |= 1401 VGAINIT0_8BIT_DAC | 1402 VGAINIT0_EXT_ENABLE | 1403 VGAINIT0_WAKEUP_3C3 | 1404 VGAINIT0_ALT_READBACK | 1405 VGAINIT0_EXTSHIFTOUT; 1406 1407 vidcfg = voodoo3_read32(sc, VIDPROCCFG); 1408 #ifdef VOODOOFB_DEBUG 1409 printf(" vidcfg: %08x\n", vidcfg); 1410 #endif 1411 vidcfg |= 1412 VIDCFG_VIDPROC_ENABLE | 1413 VIDCFG_DESK_ENABLE; 1414 vidcfg &= ~VIDCFG_HWCURSOR_ENABLE; 1415 1416 voodoo3_make_room(sc, 2); 1417 1418 voodoo3_write32(sc, VGAINIT0, vgainit0); 1419 voodoo3_write32(sc, VIDPROCCFG, vidcfg); 1420 1421 voodoo3_make_room(sc, 8); 1422 voodoo3_write32(sc, SRCBASE, 0); 1423 voodoo3_write32(sc, DSTBASE, 0); 1424 voodoo3_write32(sc, COMMANDEXTRA_2D, 0); 1425 voodoo3_write32(sc, CLIP0MIN, 0); 1426 voodoo3_write32(sc, CLIP0MAX, 0x1fff1fff); 1427 voodoo3_write32(sc, CLIP1MIN, 0); 1428 voodoo3_write32(sc, CLIP1MAX, 0x1fff1fff); 1429 voodoo3_write32(sc, SRCXY, 0); 1430 1431 voodoofb_wait_idle(sc); 1432 } 1433