1 /* $NetBSD: voodoofb.c,v 1.26 2010/12/25 11:51:21 macallan 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 1.26 2010/12/25 11:51:21 macallan 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 68 #include "opt_wsemul.h" 69 70 struct voodoofb_softc { 71 device_t sc_dev; 72 pci_chipset_tag_t sc_pc; 73 pcitag_t sc_pcitag; 74 struct pci_attach_args sc_pa; 75 76 bus_space_tag_t sc_memt; 77 bus_space_tag_t sc_iot; 78 bus_space_handle_t sc_memh; 79 80 bus_space_tag_t sc_regt; 81 bus_space_tag_t sc_fbt; 82 bus_space_tag_t sc_ioregt; 83 bus_space_handle_t sc_regh; 84 bus_space_handle_t sc_fbh; 85 bus_space_handle_t sc_ioregh; 86 bus_addr_t sc_regs, sc_fb, sc_ioreg; 87 bus_size_t sc_regsize, sc_fbsize, sc_ioregsize; 88 89 void *sc_ih; 90 91 size_t memsize; 92 int memtype; 93 94 int bits_per_pixel; 95 int width, height, linebytes; 96 const struct videomode *sc_videomode; 97 98 int sc_mode; 99 uint32_t sc_bg; 100 101 u_char sc_cmap_red[256]; 102 u_char sc_cmap_green[256]; 103 u_char sc_cmap_blue[256]; 104 int sc_dacw; 105 106 struct vcons_data vd; 107 }; 108 109 struct voodoo_regs { 110 uint8_t vr_crtc[31]; 111 uint8_t vr_graph[9]; 112 uint8_t vr_attr[21]; 113 uint8_t vr_seq[5]; 114 }; 115 116 static struct vcons_screen voodoofb_console_screen; 117 118 extern const u_char rasops_cmap[768]; 119 120 static int voodoofb_match(device_t, cfdata_t, void *); 121 static void voodoofb_attach(device_t, device_t, void *); 122 123 static int voodoofb_drm_print(void *, const char *); 124 static int voodoofb_drm_unmap(struct voodoofb_softc *); 125 static int voodoofb_drm_map(struct voodoofb_softc *); 126 127 CFATTACH_DECL_NEW(voodoofb, sizeof(struct voodoofb_softc), voodoofb_match, 128 voodoofb_attach, NULL, NULL); 129 130 static int voodoofb_is_console(struct pci_attach_args *); 131 static void voodoofb_init(struct voodoofb_softc *); 132 133 static void voodoofb_cursor(void *, int, int, int); 134 static void voodoofb_putchar(void *, int, int, u_int, long); 135 static void voodoofb_copycols(void *, int, int, int, int); 136 static void voodoofb_erasecols(void *, int, int, int, long); 137 static void voodoofb_copyrows(void *, int, int, int); 138 static void voodoofb_eraserows(void *, int, int, long); 139 140 #if 0 141 static int voodoofb_allocattr(void *, int, int, int, long *); 142 static void voodoofb_scroll(void *, void *, int); 143 static int voodoofb_load_font(void *, void *, struct wsdisplay_font *); 144 #endif 145 146 static int voodoofb_putcmap(struct voodoofb_softc *, 147 struct wsdisplay_cmap *); 148 static int voodoofb_getcmap(struct voodoofb_softc *, 149 struct wsdisplay_cmap *); 150 static int voodoofb_putpalreg(struct voodoofb_softc *, uint8_t, uint8_t, 151 uint8_t, uint8_t); 152 static void voodoofb_bitblt(struct voodoofb_softc *, int, int, int, int, 153 int, int); 154 static void voodoofb_rectfill(struct voodoofb_softc *, int, int, int, int, 155 int); 156 static void voodoofb_rectinvert(struct voodoofb_softc *, int, int, int, 157 int); 158 static void voodoofb_setup_mono(struct voodoofb_softc *, int, int, int, 159 int, uint32_t, uint32_t); 160 static void voodoofb_feed_line(struct voodoofb_softc *, int, uint8_t *); 161 162 static void voodoofb_wait_idle(struct voodoofb_softc *); 163 164 #ifdef VOODOOFB_ENABLE_INTR 165 static int voodoofb_intr(void *); 166 #endif 167 168 static void voodoofb_set_videomode(struct voodoofb_softc *, 169 const struct videomode *); 170 171 struct wsscreen_descr voodoofb_defaultscreen = { 172 "default", 173 0, 0, 174 NULL, 175 8, 16, 176 WSSCREEN_WSCOLORS | WSSCREEN_HILIT, 177 NULL, 178 }; 179 180 const struct wsscreen_descr *_voodoofb_scrlist[] = { 181 &voodoofb_defaultscreen, 182 /* XXX other formats, graphics screen? */ 183 }; 184 185 struct wsscreen_list voodoofb_screenlist = { 186 sizeof(_voodoofb_scrlist) / sizeof(struct wsscreen_descr *), _voodoofb_scrlist 187 }; 188 189 static int voodoofb_ioctl(void *, void *, u_long, void *, int, 190 struct lwp *); 191 static paddr_t voodoofb_mmap(void *, void *, off_t, int); 192 193 static void voodoofb_clearscreen(struct voodoofb_softc *); 194 static void voodoofb_init_screen(void *, struct vcons_screen *, int, 195 long *); 196 197 198 struct wsdisplay_accessops voodoofb_accessops = { 199 voodoofb_ioctl, 200 voodoofb_mmap, 201 NULL, 202 NULL, 203 NULL, 204 NULL, /* load_font */ 205 NULL, /* polls */ 206 NULL, /* scroll */ 207 }; 208 209 /* 210 * Inline functions for getting access to register aperture. 211 */ 212 static inline void 213 voodoo3_write32(struct voodoofb_softc *sc, uint32_t reg, uint32_t val) 214 { 215 bus_space_write_4(sc->sc_regt, sc->sc_regh, reg, val); 216 } 217 218 static inline uint32_t 219 voodoo3_read32(struct voodoofb_softc *sc, uint32_t reg) 220 { 221 return bus_space_read_4(sc->sc_regt, sc->sc_regh, reg); 222 } 223 224 static inline void 225 voodoo3_write_crtc(struct voodoofb_softc *sc, uint8_t reg, uint8_t val) 226 { 227 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, CRTC_INDEX - 0x300, reg); 228 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, CRTC_DATA - 0x300, val); 229 } 230 231 static inline void 232 voodoo3_write_seq(struct voodoofb_softc *sc, uint8_t reg, uint8_t val) 233 { 234 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, SEQ_INDEX - 0x300, reg); 235 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, SEQ_DATA - 0x300, val); 236 } 237 238 static inline void 239 voodoo3_write_gra(struct voodoofb_softc *sc, uint8_t reg, uint8_t val) 240 { 241 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, GRA_INDEX - 0x300, reg); 242 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, GRA_DATA - 0x300, val); 243 } 244 245 static inline void 246 voodoo3_write_attr(struct voodoofb_softc *sc, uint8_t reg, uint8_t val) 247 { 248 volatile uint8_t junk; 249 uint8_t index; 250 251 junk = bus_space_read_1(sc->sc_ioregt, sc->sc_ioregh, IS1_R - 0x300); 252 index = bus_space_read_1(sc->sc_ioregt, sc->sc_ioregh, ATT_IW - 0x300); 253 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, ATT_IW - 0x300, reg); 254 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, ATT_IW - 0x300, val); 255 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, ATT_IW - 0x300, index); 256 } 257 258 static inline void 259 vga_outb(struct voodoofb_softc *sc, uint32_t reg, uint8_t val) 260 { 261 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, reg - 0x300, val); 262 } 263 264 /* wait until there's room for len bytes in the FIFO */ 265 static inline void 266 voodoo3_make_room(struct voodoofb_softc *sc, int len) 267 { 268 while ((voodoo3_read32(sc, STATUS) & 0x1f) < len); 269 } 270 271 static void 272 voodoofb_wait_idle(struct voodoofb_softc *sc) 273 { 274 int i = 0; 275 276 voodoo3_make_room(sc, 1); 277 voodoo3_write32(sc, COMMAND_3D, COMMAND_3D_NOP); 278 279 while (1) { 280 i = (voodoo3_read32(sc, STATUS) & STATUS_BUSY) ? 0 : i + 1; 281 if(i == 3) break; 282 } 283 } 284 285 static int 286 voodoofb_match(device_t parent, cfdata_t match, void *aux) 287 { 288 struct pci_attach_args *pa = (struct pci_attach_args *)aux; 289 290 if (PCI_CLASS(pa->pa_class) != PCI_CLASS_DISPLAY || 291 PCI_SUBCLASS(pa->pa_class) != PCI_SUBCLASS_DISPLAY_VGA) 292 return 0; 293 if ((PCI_VENDOR(pa->pa_id)==PCI_VENDOR_3DFX) && 294 (PCI_PRODUCT(pa->pa_id)>=PCI_PRODUCT_3DFX_VOODOO3)) 295 return 100; 296 return 0; 297 } 298 299 static void 300 voodoofb_attach(device_t parent, device_t self, void *aux) 301 { 302 struct voodoofb_softc *sc = device_private(self); 303 struct pci_attach_args *pa = aux; 304 char devinfo[256]; 305 struct wsemuldisplaydev_attach_args aa; 306 struct rasops_info *ri; 307 #ifdef VOODOOFB_ENABLE_INTR 308 pci_intr_handle_t ih; 309 const char *intrstr; 310 #endif 311 ulong defattr; 312 int console, width, height, i, j; 313 #ifdef HAVE_OPENFIRMWARE 314 int linebytes, depth, node; 315 #endif 316 uint32_t bg, fg, ul; 317 318 sc->sc_dev = self; 319 320 sc->sc_mode = WSDISPLAYIO_MODE_EMUL; 321 #ifdef HAVE_OPENFIRMWARE 322 node = pcidev_to_ofdev(pa->pa_pc, pa->pa_tag); 323 #endif 324 sc->sc_pc = pa->pa_pc; 325 sc->sc_pcitag = pa->pa_tag; 326 sc->sc_dacw = -1; 327 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo)); 328 printf(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class)); 329 330 sc->sc_memt = pa->pa_memt; 331 sc->sc_iot = pa->pa_iot; 332 sc->sc_pa = *pa; 333 334 /* the framebuffer */ 335 if (pci_mapreg_map(pa, 0x14, PCI_MAPREG_TYPE_MEM, 336 BUS_SPACE_MAP_CACHEABLE | BUS_SPACE_MAP_PREFETCHABLE | 337 BUS_SPACE_MAP_LINEAR, 338 &sc->sc_fbt, &sc->sc_fbh, &sc->sc_fb, &sc->sc_fbsize)) { 339 aprint_error_dev(self, "failed to map the frame buffer.\n"); 340 } 341 342 /* memory-mapped registers */ 343 if (pci_mapreg_map(pa, 0x10, PCI_MAPREG_TYPE_MEM, 0, 344 &sc->sc_regt, &sc->sc_regh, &sc->sc_regs, &sc->sc_regsize)) { 345 aprint_error_dev(self, "failed to map memory-mapped registers.\n"); 346 } 347 348 /* IO-mapped registers */ 349 if (pci_mapreg_map(pa, 0x18, PCI_MAPREG_TYPE_IO, 0, 350 &sc->sc_ioregt, &sc->sc_ioregh, &sc->sc_ioreg, 351 &sc->sc_ioregsize)) { 352 aprint_error_dev(self, "failed to map IO-mapped registers.\n"); 353 } 354 voodoofb_init(sc); 355 356 /* we should read these from the chip instead of depending on OF */ 357 width = height = -1; 358 359 #ifdef HAVE_OPENFIRMWARE 360 if (OF_getprop(node, "width", &width, 4) != 4) 361 OF_interpret("screen-width", 1, 1, &width); 362 if (OF_getprop(node, "height", &height, 4) != 4) 363 OF_interpret("screen-height", 1, 1, &height); 364 if (OF_getprop(node, "linebytes", &linebytes, 4) != 4) 365 linebytes = width; /* XXX */ 366 if (OF_getprop(node, "depth", &depth, 4) != 4) 367 depth = 8; /* XXX */ 368 369 if (width == -1 || height == -1) 370 return; 371 372 sc->width = width; 373 sc->height = height; 374 sc->bits_per_pixel = depth; 375 sc->linebytes = linebytes; 376 printf("%s: initial resolution %dx%d, %d bit\n", device_xname(self), 377 sc->width, sc->height, sc->bits_per_pixel); 378 #endif 379 380 /* XXX this should at least be configurable via kernel config */ 381 if ((sc->sc_videomode = pick_mode_by_ref(1024, 768, 60)) != NULL) 382 voodoofb_set_videomode(sc, sc->sc_videomode); 383 384 vcons_init(&sc->vd, sc, &voodoofb_defaultscreen, &voodoofb_accessops); 385 sc->vd.init_screen = voodoofb_init_screen; 386 387 console = voodoofb_is_console(pa); 388 389 ri = &voodoofb_console_screen.scr_ri; 390 if (console) { 391 vcons_init_screen(&sc->vd, &voodoofb_console_screen, 1, 392 &defattr); 393 voodoofb_console_screen.scr_flags |= VCONS_SCREEN_IS_STATIC; 394 395 voodoofb_defaultscreen.textops = &ri->ri_ops; 396 voodoofb_defaultscreen.capabilities = ri->ri_caps; 397 voodoofb_defaultscreen.nrows = ri->ri_rows; 398 voodoofb_defaultscreen.ncols = ri->ri_cols; 399 wsdisplay_cnattach(&voodoofb_defaultscreen, ri, 0, 0, defattr); 400 } else { 401 /* 402 * since we're not the console we can postpone the rest 403 * until someone actually allocates a screen for us 404 */ 405 voodoofb_set_videomode(sc, sc->sc_videomode); 406 } 407 408 printf("%s: %d MB aperture at 0x%08x, %d MB registers at 0x%08x\n", 409 device_xname(self), (u_int)(sc->sc_fbsize >> 20), 410 (u_int)sc->sc_fb, (u_int)(sc->sc_regsize >> 20), 411 (u_int)sc->sc_regs); 412 #ifdef VOODOOFB_DEBUG 413 printf("fb: %08lx\n", (ulong)ri->ri_bits); 414 #endif 415 416 j = 0; 417 for (i = 0; i < 256; i++) { 418 voodoofb_putpalreg(sc, i, rasops_cmap[j], rasops_cmap[j + 1], 419 rasops_cmap[j + 2]); 420 j += 3; 421 } 422 423 #ifdef VOODOOFB_ENABLE_INTR 424 /* Interrupt. We don't use it for anything yet */ 425 if (pci_intr_map(pa, &ih)) { 426 aprint_error_dev(self, "failed to map interrupt\n"); 427 return; 428 } 429 430 intrstr = pci_intr_string(sc->sc_pc, ih); 431 sc->sc_ih = pci_intr_establish(sc->sc_pc, ih, IPL_NET, voodoofb_intr, 432 sc); 433 if (sc->sc_ih == NULL) { 434 aprint_error_dev(self, "failed to establish interrupt"); 435 if (intrstr != NULL) 436 aprint_error(" at %s", intrstr); 437 aprint_error("\n"); 438 return; 439 } 440 aprint_normal_dev(self, "interrupting at %s\n", intrstr); 441 #endif 442 443 rasops_unpack_attr(defattr, &fg, &bg, &ul); 444 sc->sc_bg = ri->ri_devcmap[bg]; 445 voodoofb_clearscreen(sc); 446 447 if (console) 448 vcons_replay_msgbuf(&voodoofb_console_screen); 449 aa.console = console; 450 aa.scrdata = &voodoofb_screenlist; 451 aa.accessops = &voodoofb_accessops; 452 aa.accesscookie = &sc->vd; 453 454 config_found(self, &aa, wsemuldisplaydevprint); 455 config_found_ia(self, "drm", aux, voodoofb_drm_print); 456 } 457 458 static int 459 voodoofb_drm_print(void *opaque, const char *pnp) 460 { 461 if (pnp) 462 aprint_normal("drm at %s", pnp); 463 464 return UNCONF; 465 } 466 467 static int 468 voodoofb_drm_unmap(struct voodoofb_softc *sc) 469 { 470 printf("%s: releasing bus resources\n", device_xname(sc->sc_dev)); 471 472 bus_space_unmap(sc->sc_ioregt, sc->sc_ioregh, sc->sc_ioregsize); 473 bus_space_unmap(sc->sc_regt, sc->sc_regh, sc->sc_regsize); 474 bus_space_unmap(sc->sc_fbt, sc->sc_fbh, sc->sc_fbsize); 475 476 return 0; 477 } 478 479 static int 480 voodoofb_drm_map(struct voodoofb_softc *sc) 481 { 482 if (pci_mapreg_map(&sc->sc_pa, 0x14, PCI_MAPREG_TYPE_MEM, 483 BUS_SPACE_MAP_CACHEABLE | BUS_SPACE_MAP_PREFETCHABLE | 484 BUS_SPACE_MAP_LINEAR, 485 &sc->sc_fbt, &sc->sc_fbh, &sc->sc_fb, &sc->sc_fbsize)) { 486 aprint_error_dev(sc->sc_dev, "failed to map the frame buffer.\n"); 487 } 488 489 /* memory-mapped registers */ 490 if (pci_mapreg_map(&sc->sc_pa, 0x10, PCI_MAPREG_TYPE_MEM, 0, 491 &sc->sc_regt, &sc->sc_regh, &sc->sc_regs, &sc->sc_regsize)) { 492 aprint_error_dev(sc->sc_dev, "failed to map memory-mapped registers.\n"); 493 } 494 495 /* IO-mapped registers */ 496 if (pci_mapreg_map(&sc->sc_pa, 0x18, PCI_MAPREG_TYPE_IO, 0, 497 &sc->sc_ioregt, &sc->sc_ioregh, &sc->sc_ioreg, 498 &sc->sc_ioregsize)) { 499 aprint_error_dev(sc->sc_dev, "failed to map IO-mapped registers.\n"); 500 } 501 502 voodoofb_init(sc); 503 /* XXX this should at least be configurable via kernel config */ 504 voodoofb_set_videomode(sc, sc->sc_videomode); 505 506 return 0; 507 } 508 509 static int 510 voodoofb_putpalreg(struct voodoofb_softc *sc, uint8_t index, uint8_t r, 511 uint8_t g, uint8_t b) 512 { 513 uint32_t color; 514 515 sc->sc_cmap_red[index] = r; 516 sc->sc_cmap_green[index] = g; 517 sc->sc_cmap_blue[index] = b; 518 519 color = (r << 16) | (g << 8) | b; 520 voodoo3_make_room(sc, 2); 521 voodoo3_write32(sc, DACADDR, index); 522 voodoo3_write32(sc, DACDATA, color); 523 524 return 0; 525 } 526 527 static int 528 voodoofb_putcmap(struct voodoofb_softc *sc, struct wsdisplay_cmap *cm) 529 { 530 u_char *r, *g, *b; 531 u_int index = cm->index; 532 u_int count = cm->count; 533 int i, error; 534 u_char rbuf[256], gbuf[256], bbuf[256]; 535 536 #ifdef VOODOOFB_DEBUG 537 printf("putcmap: %d %d\n",index, count); 538 #endif 539 if (cm->index >= 256 || cm->count > 256 || 540 (cm->index + cm->count) > 256) 541 return EINVAL; 542 error = copyin(cm->red, &rbuf[index], count); 543 if (error) 544 return error; 545 error = copyin(cm->green, &gbuf[index], count); 546 if (error) 547 return error; 548 error = copyin(cm->blue, &bbuf[index], count); 549 if (error) 550 return error; 551 552 memcpy(&sc->sc_cmap_red[index], &rbuf[index], count); 553 memcpy(&sc->sc_cmap_green[index], &gbuf[index], count); 554 memcpy(&sc->sc_cmap_blue[index], &bbuf[index], count); 555 556 r = &sc->sc_cmap_red[index]; 557 g = &sc->sc_cmap_green[index]; 558 b = &sc->sc_cmap_blue[index]; 559 560 for (i = 0; i < count; i++) { 561 voodoofb_putpalreg(sc, index, *r, *g, *b); 562 index++; 563 r++, g++, b++; 564 } 565 return 0; 566 } 567 568 static int 569 voodoofb_getcmap(struct voodoofb_softc *sc, struct wsdisplay_cmap *cm) 570 { 571 u_int index = cm->index; 572 u_int count = cm->count; 573 int error; 574 575 if (index >= 255 || count > 256 || index + count > 256) 576 return EINVAL; 577 578 error = copyout(&sc->sc_cmap_red[index], cm->red, count); 579 if (error) 580 return error; 581 error = copyout(&sc->sc_cmap_green[index], cm->green, count); 582 if (error) 583 return error; 584 error = copyout(&sc->sc_cmap_blue[index], cm->blue, count); 585 if (error) 586 return error; 587 588 return 0; 589 } 590 591 static int 592 voodoofb_is_console(struct pci_attach_args *pa) 593 { 594 595 #ifdef HAVE_OPENFIRMWARE 596 /* check if we're the /chosen console device */ 597 int chosen, stdout, node, us; 598 599 us=pcidev_to_ofdev(pa->pa_pc, pa->pa_tag); 600 chosen = OF_finddevice("/chosen"); 601 OF_getprop(chosen, "stdout", &stdout, 4); 602 node = OF_instance_to_package(stdout); 603 return(us == node); 604 #else 605 /* XXX how do we know we're console on i386? */ 606 return 1; 607 #endif 608 } 609 610 static void 611 voodoofb_clearscreen(struct voodoofb_softc *sc) 612 { 613 voodoofb_rectfill(sc, 0, 0, sc->width, sc->height, sc->sc_bg); 614 } 615 616 /* 617 * wsdisplay_emulops 618 */ 619 620 static void 621 voodoofb_cursor(void *cookie, int on, int row, int col) 622 { 623 struct rasops_info *ri = cookie; 624 struct vcons_screen *scr = ri->ri_hw; 625 struct voodoofb_softc *sc = scr->scr_cookie; 626 int x, y, wi, he; 627 628 wi = ri->ri_font->fontwidth; 629 he = ri->ri_font->fontheight; 630 631 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 632 x = ri->ri_ccol * wi + ri->ri_xorigin; 633 y = ri->ri_crow * he + ri->ri_yorigin; 634 if (ri->ri_flg & RI_CURSOR) { 635 voodoofb_rectinvert(sc, x, y, wi, he); 636 ri->ri_flg &= ~RI_CURSOR; 637 } 638 ri->ri_crow = row; 639 ri->ri_ccol = col; 640 if (on) 641 { 642 x = ri->ri_ccol * wi + ri->ri_xorigin; 643 y = ri->ri_crow * he + ri->ri_yorigin; 644 voodoofb_rectinvert(sc, x, y, wi, he); 645 ri->ri_flg |= RI_CURSOR; 646 } 647 } else { 648 ri->ri_flg &= ~RI_CURSOR; 649 ri->ri_crow = row; 650 ri->ri_ccol = col; 651 } 652 } 653 654 #if 0 655 int 656 voodoofb_mapchar(void *cookie, int uni, u_int *index) 657 { 658 return 0; 659 } 660 #endif 661 662 static void 663 voodoofb_putchar(void *cookie, int row, int col, u_int c, long attr) 664 { 665 struct rasops_info *ri = cookie; 666 struct wsdisplay_font *font = PICK_FONT(ri, c); 667 struct vcons_screen *scr = ri->ri_hw; 668 struct voodoofb_softc *sc = scr->scr_cookie; 669 670 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 671 uint8_t *data; 672 int fg, bg, uc, i; 673 int x, y, wi, he; 674 675 wi = font->fontwidth; 676 he = font->fontheight; 677 678 if (!CHAR_IN_FONT(c, font)) 679 return; 680 bg = (u_char)ri->ri_devcmap[(attr >> 16) & 0xf]; 681 fg = (u_char)ri->ri_devcmap[(attr >> 24) & 0xf]; 682 x = ri->ri_xorigin + col * wi; 683 y = ri->ri_yorigin + row * he; 684 if (c == 0x20) { 685 voodoofb_rectfill(sc, x, y, wi, he, bg); 686 } else { 687 uc = c - font->firstchar; 688 data = (uint8_t *)font->data + uc * 689 ri->ri_fontscale; 690 voodoofb_setup_mono(sc, x, y, wi, he, fg, bg); 691 for (i = 0; i < he; i++) { 692 voodoofb_feed_line(sc, font->stride, data); 693 data += font->stride; 694 } 695 } 696 } 697 } 698 699 static void 700 voodoofb_copycols(void *cookie, int row, int srccol, int dstcol, int ncols) 701 { 702 struct rasops_info *ri = cookie; 703 struct vcons_screen *scr = ri->ri_hw; 704 struct voodoofb_softc *sc = scr->scr_cookie; 705 int32_t xs, xd, y, width, height; 706 707 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 708 xs = ri->ri_xorigin + ri->ri_font->fontwidth * srccol; 709 xd = ri->ri_xorigin + ri->ri_font->fontwidth * dstcol; 710 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 711 width = ri->ri_font->fontwidth * ncols; 712 height = ri->ri_font->fontheight; 713 voodoofb_bitblt(sc, xs, y, xd, y, width, height); 714 } 715 } 716 717 static void 718 voodoofb_erasecols(void *cookie, int row, int startcol, int ncols, 719 long fillattr) 720 { 721 struct rasops_info *ri = cookie; 722 struct vcons_screen *scr = ri->ri_hw; 723 struct voodoofb_softc *sc = scr->scr_cookie; 724 int32_t x, y, width, height, fg, bg, ul; 725 726 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 727 x = ri->ri_xorigin + ri->ri_font->fontwidth * startcol; 728 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 729 width = ri->ri_font->fontwidth * ncols; 730 height = ri->ri_font->fontheight; 731 rasops_unpack_attr(fillattr, &fg, &bg, &ul); 732 733 voodoofb_rectfill(sc, x, y, width, height, ri->ri_devcmap[bg]); 734 } 735 } 736 737 static void 738 voodoofb_copyrows(void *cookie, int srcrow, int dstrow, int nrows) 739 { 740 struct rasops_info *ri = cookie; 741 struct vcons_screen *scr = ri->ri_hw; 742 struct voodoofb_softc *sc = scr->scr_cookie; 743 int32_t x, ys, yd, width, height; 744 745 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 746 x = ri->ri_xorigin; 747 ys = ri->ri_yorigin + ri->ri_font->fontheight * srcrow; 748 yd = ri->ri_yorigin + ri->ri_font->fontheight * dstrow; 749 width = ri->ri_emuwidth; 750 height = ri->ri_font->fontheight * nrows; 751 voodoofb_bitblt(sc, x, ys, x, yd, width, height); 752 } 753 } 754 755 static void 756 voodoofb_eraserows(void *cookie, int row, int nrows, long fillattr) 757 { 758 struct rasops_info *ri = cookie; 759 struct vcons_screen *scr = ri->ri_hw; 760 struct voodoofb_softc *sc = scr->scr_cookie; 761 int32_t x, y, width, height, fg, bg, ul; 762 763 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 764 rasops_unpack_attr(fillattr, &fg, &bg, &ul); 765 if ((row == 0) && (nrows == ri->ri_rows)) { 766 /* clear the whole screen */ 767 voodoofb_rectfill(sc, 0, 0, ri->ri_width, 768 ri->ri_height, ri->ri_devcmap[bg]); 769 } else { 770 x = ri->ri_xorigin; 771 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 772 width = ri->ri_emuwidth; 773 height = ri->ri_font->fontheight * nrows; 774 voodoofb_rectfill(sc, x, y, width, height, 775 ri->ri_devcmap[bg]); 776 } 777 } 778 } 779 780 static void 781 voodoofb_bitblt(struct voodoofb_softc *sc, int xs, int ys, int xd, int yd, int width, int height) 782 { 783 uint32_t fmt, blitcmd; 784 785 fmt = sc->linebytes | ((sc->bits_per_pixel + 786 ((sc->bits_per_pixel == 8) ? 0 : 8)) << 13); 787 blitcmd = COMMAND_2D_S2S_BITBLT | (ROP_COPY << 24); 788 789 if (xs <= xd) { 790 blitcmd |= BIT(14); 791 xs += (width - 1); 792 xd += (width - 1); 793 } 794 if (ys <= yd) { 795 blitcmd |= BIT(15); 796 ys += (height - 1); 797 yd += (height - 1); 798 } 799 voodoo3_make_room(sc, 6); 800 801 voodoo3_write32(sc, SRCFORMAT, fmt); 802 voodoo3_write32(sc, DSTFORMAT, fmt); 803 voodoo3_write32(sc, DSTSIZE, width | (height << 16)); 804 voodoo3_write32(sc, DSTXY, xd | (yd << 16)); 805 voodoo3_write32(sc, SRCXY, xs | (ys << 16)); 806 voodoo3_write32(sc, COMMAND_2D, blitcmd | SST_2D_GO); 807 } 808 809 static void 810 voodoofb_rectfill(struct voodoofb_softc *sc, int x, int y, int width, 811 int height, int colour) 812 { 813 uint32_t fmt, col; 814 815 col = (colour << 24) | (colour << 16) | (colour << 8) | colour; 816 fmt = sc->linebytes | ((sc->bits_per_pixel + 817 ((sc->bits_per_pixel == 8) ? 0 : 8)) << 13); 818 819 voodoo3_make_room(sc, 6); 820 voodoo3_write32(sc, DSTFORMAT, fmt); 821 voodoo3_write32(sc, COLORFORE, colour); 822 voodoo3_write32(sc, COLORBACK, colour); 823 voodoo3_write32(sc, COMMAND_2D, COMMAND_2D_FILLRECT | (ROP_COPY << 24)); 824 voodoo3_write32(sc, DSTSIZE, width | (height << 16)); 825 voodoo3_write32(sc, LAUNCH_2D, x | (y << 16)); 826 } 827 828 static void 829 voodoofb_rectinvert(struct voodoofb_softc *sc, int x, int y, int width, 830 int height) 831 { 832 uint32_t fmt; 833 834 fmt = sc->linebytes | ((sc->bits_per_pixel + 835 ((sc->bits_per_pixel == 8) ? 0 : 8)) << 13); 836 837 voodoo3_make_room(sc, 6); 838 voodoo3_write32(sc, DSTFORMAT, fmt); 839 voodoo3_write32(sc, COMMAND_2D, COMMAND_2D_FILLRECT | 840 (ROP_INVERT << 24)); 841 voodoo3_write32(sc, DSTSIZE, width | (height << 16)); 842 voodoo3_write32(sc, DSTXY, x | (y << 16)); 843 voodoo3_write32(sc, LAUNCH_2D, x | (y << 16)); 844 } 845 846 static void 847 voodoofb_setup_mono(struct voodoofb_softc *sc, int xd, int yd, int width, int height, uint32_t fg, 848 uint32_t bg) 849 { 850 uint32_t dfmt, sfmt = sc->linebytes; 851 852 dfmt = sc->linebytes | ((sc->bits_per_pixel + 853 ((sc->bits_per_pixel == 8) ? 0 : 8)) << 13); 854 855 voodoo3_make_room(sc, 9); 856 voodoo3_write32(sc, SRCFORMAT, sfmt); 857 voodoo3_write32(sc, DSTFORMAT, dfmt); 858 voodoo3_write32(sc, COLORFORE, fg); 859 voodoo3_write32(sc, COLORBACK, bg); 860 voodoo3_write32(sc, DSTSIZE, width | (height << 16)); 861 voodoo3_write32(sc, DSTXY, xd | (yd << 16)); 862 voodoo3_write32(sc, SRCXY, 0); 863 voodoo3_write32(sc, COMMAND_2D, COMMAND_2D_H2S_BITBLT | 864 (ROP_COPY << 24) | SST_2D_GO); 865 866 /* now feed the data into the chip */ 867 } 868 869 static void 870 voodoofb_feed_line(struct voodoofb_softc *sc, int count, uint8_t *data) 871 { 872 int i; 873 uint32_t latch = 0, bork; 874 int shift = 0; 875 876 voodoo3_make_room(sc, count); 877 for (i = 0; i < count; i++) { 878 bork = data[i]; 879 latch |= (bork << shift); 880 if (shift == 24) { 881 voodoo3_write32(sc, LAUNCH_2D, latch); 882 latch = 0; 883 shift = 0; 884 } else 885 shift += 8; 886 } 887 if (shift != 24) 888 voodoo3_write32(sc, LAUNCH_2D, latch); 889 } 890 891 #if 0 892 static int 893 voodoofb_allocattr(void *cookie, int fg, int bg, int flags, long *attrp) 894 { 895 896 return 0; 897 } 898 #endif 899 900 /* 901 * wsdisplay_accessops 902 */ 903 904 static int 905 voodoofb_ioctl(void *v, void *vs, u_long cmd, void *data, int flag, 906 struct lwp *l) 907 { 908 struct vcons_data *vd = v; 909 struct voodoofb_softc *sc = vd->cookie; 910 struct wsdisplay_fbinfo *wdf; 911 struct vcons_screen *ms = vd->active; 912 913 switch (cmd) { 914 case WSDISPLAYIO_GTYPE: 915 *(u_int *)data = WSDISPLAY_TYPE_PCIMISC; 916 return 0; 917 918 case WSDISPLAYIO_GINFO: 919 wdf = (void *)data; 920 wdf->height = ms->scr_ri.ri_height; 921 wdf->width = ms->scr_ri.ri_width; 922 wdf->depth = ms->scr_ri.ri_depth; 923 wdf->cmsize = 256; 924 return 0; 925 926 case WSDISPLAYIO_GETCMAP: 927 return voodoofb_getcmap(sc, 928 (struct wsdisplay_cmap *)data); 929 930 case WSDISPLAYIO_PUTCMAP: 931 return voodoofb_putcmap(sc, 932 (struct wsdisplay_cmap *)data); 933 934 /* PCI config read/write passthrough. */ 935 case PCI_IOC_CFGREAD: 936 case PCI_IOC_CFGWRITE: 937 return pci_devioctl(sc->sc_pc, sc->sc_pcitag, 938 cmd, data, flag, l); 939 940 case WSDISPLAYIO_SMODE: { 941 int new_mode = *(int*)data; 942 if (new_mode != sc->sc_mode) { 943 sc->sc_mode = new_mode; 944 if (new_mode == WSDISPLAYIO_MODE_EMUL) { 945 voodoofb_drm_map(sc); 946 int i; 947 948 /* restore the palette */ 949 for (i = 0; i < 256; i++) { 950 voodoofb_putpalreg(sc, 951 i, 952 sc->sc_cmap_red[i], 953 sc->sc_cmap_green[i], 954 sc->sc_cmap_blue[i]); 955 } 956 vcons_redraw_screen(ms); 957 } else 958 voodoofb_drm_unmap(sc); 959 } 960 } 961 return 0; 962 } 963 return EPASSTHROUGH; 964 } 965 966 static paddr_t 967 voodoofb_mmap(void *v, void *vs, off_t offset, int prot) 968 { 969 struct vcons_data *vd = v; 970 struct voodoofb_softc *sc = vd->cookie; 971 paddr_t pa; 972 973 /* 'regular' framebuffer mmap()ing */ 974 if (offset < sc->sc_fbsize) { 975 pa = bus_space_mmap(sc->sc_fbt, offset, 0, prot, 976 BUS_SPACE_MAP_LINEAR); 977 return pa; 978 } 979 980 /* 981 * restrict all other mappings to processes with superuser privileges 982 * or the kernel itself 983 */ 984 if (kauth_authorize_generic(kauth_cred_get(), KAUTH_GENERIC_ISSUSER, 985 NULL) != 0) { 986 aprint_error_dev(sc->sc_dev, "mmap() rejected.\n"); 987 return -1; 988 } 989 990 if ((offset >= sc->sc_fb) && (offset < (sc->sc_fb + sc->sc_fbsize))) { 991 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 992 BUS_SPACE_MAP_LINEAR); 993 return pa; 994 } 995 996 if ((offset >= sc->sc_regs) && (offset < (sc->sc_regs + 997 sc->sc_regsize))) { 998 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 999 BUS_SPACE_MAP_LINEAR); 1000 return pa; 1001 } 1002 1003 #ifdef PCI_MAGIC_IO_RANGE 1004 /* allow mapping of IO space */ 1005 if ((offset >= PCI_MAGIC_IO_RANGE) &&\ 1006 (offset < PCI_MAGIC_IO_RANGE + 0x10000)) { 1007 pa = bus_space_mmap(sc->sc_iot, offset - PCI_MAGIC_IO_RANGE, 1008 0, prot, BUS_SPACE_MAP_LINEAR); 1009 return pa; 1010 } 1011 #endif 1012 1013 #ifdef OFB_ALLOW_OTHERS 1014 if (offset >= 0x80000000) { 1015 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 1016 BUS_SPACE_MAP_LINEAR); 1017 return pa; 1018 } 1019 #endif 1020 return -1; 1021 } 1022 1023 static void 1024 voodoofb_init_screen(void *cookie, struct vcons_screen *scr, 1025 int existing, long *defattr) 1026 { 1027 struct voodoofb_softc *sc = cookie; 1028 struct rasops_info *ri = &scr->scr_ri; 1029 1030 ri->ri_depth = sc->bits_per_pixel; 1031 ri->ri_width = sc->width; 1032 ri->ri_height = sc->height; 1033 ri->ri_stride = sc->width; 1034 ri->ri_flg = RI_CENTER | RI_FULLCLEAR; 1035 1036 ri->ri_bits = bus_space_vaddr(sc->sc_fbt, sc->sc_fbh); 1037 1038 #ifdef VOODOOFB_DEBUG 1039 printf("addr: %08lx\n", (ulong)ri->ri_bits); 1040 #endif 1041 if (existing) { 1042 ri->ri_flg |= RI_CLEAR; 1043 } 1044 1045 rasops_init(ri, sc->height/8, sc->width/8); 1046 ri->ri_caps = WSSCREEN_WSCOLORS; 1047 1048 rasops_reconfig(ri, sc->height / ri->ri_font->fontheight, 1049 sc->width / ri->ri_font->fontwidth); 1050 1051 ri->ri_hw = scr; 1052 ri->ri_ops.copyrows = voodoofb_copyrows; 1053 ri->ri_ops.copycols = voodoofb_copycols; 1054 ri->ri_ops.eraserows = voodoofb_eraserows; 1055 ri->ri_ops.erasecols = voodoofb_erasecols; 1056 ri->ri_ops.cursor = voodoofb_cursor; 1057 ri->ri_ops.putchar = voodoofb_putchar; 1058 } 1059 1060 #if 0 1061 int 1062 voodoofb_load_font(void *v, void *cookie, struct wsdisplay_font *data) 1063 { 1064 1065 return 0; 1066 } 1067 #endif 1068 1069 #ifdef VOODOOFB_ENABLE_INTR 1070 static int 1071 voodoofb_intr(void *arg) 1072 { 1073 struct voodoofb_softc *sc = arg; 1074 1075 voodoo3_write32(sc, V3_STATUS, 0); /* clear interrupts */ 1076 return 1; 1077 } 1078 #endif 1079 1080 /* video mode stuff */ 1081 1082 #define REFFREQ 14318 /* .18 */ 1083 1084 #define ABS(a) ((a < 0) ? -a : a) 1085 1086 static int 1087 voodoofb_calc_pll(int freq, int *f_out, int isBanshee) 1088 { 1089 int m, n, k, best_m, best_n, best_k, f_cur, best_error; 1090 int minm, maxm; 1091 1092 best_error = freq; 1093 best_n = best_m = best_k = 0; 1094 1095 if (isBanshee) { 1096 minm = 24; 1097 maxm = 24; 1098 } else { 1099 minm = 1; 1100 maxm = 57; 1101 /* This used to be 64, alas it seems the last 8 (funny that ?) 1102 * values cause jittering at lower resolutions. I've not done 1103 * any calculations to what the adjustment affects clock ranges, 1104 * but I can still run at 1600x1200@75Hz */ 1105 } 1106 for (n = 1; n < 256; n++) { 1107 f_cur = REFFREQ * (n + 2); 1108 if (f_cur < freq) { 1109 f_cur = f_cur / 3; 1110 if (freq - f_cur < best_error) { 1111 best_error = freq - f_cur; 1112 best_n = n; 1113 best_m = 1; 1114 best_k = 0; 1115 continue; 1116 } 1117 } 1118 for (m = minm; m < maxm; m++) { 1119 for (k = 0; k < 4; k++) { 1120 f_cur = REFFREQ * (n + 2) / (m + 2) / (1 << k); 1121 if (ABS(f_cur - freq) < best_error) { 1122 best_error = ABS(f_cur - freq); 1123 best_n = n; 1124 best_m = m; 1125 best_k = k; 1126 } 1127 } 1128 } 1129 } 1130 n = best_n; 1131 m = best_m; 1132 k = best_k; 1133 *f_out = REFFREQ * (n + 2) / (m + 2) / (1 << k); 1134 return ( n << 8) | (m << 2) | k; 1135 } 1136 1137 static void 1138 voodoofb_setup_monitor(struct voodoofb_softc *sc, const struct videomode *vm) 1139 { 1140 struct voodoo_regs mod; 1141 struct voodoo_regs *mode; 1142 uint32_t horizontal_display_end, horizontal_sync_start, 1143 horizontal_sync_end, horizontal_total, 1144 horizontal_blanking_start, horizontal_blanking_end; 1145 1146 uint32_t vertical_display_enable_end, vertical_sync_start, 1147 vertical_sync_end, vertical_total, vertical_blanking_start, 1148 vertical_blanking_end; 1149 1150 uint32_t wd; // CRTC offset 1151 1152 int i; 1153 1154 uint8_t misc; 1155 1156 memset(&mod, 0, sizeof(mode)); 1157 1158 mode = &mod; 1159 1160 wd = (vm->hdisplay >> 3) - 1; 1161 horizontal_display_end = (vm->hdisplay >> 3) - 1; 1162 horizontal_sync_start = (vm->hsync_start >> 3) - 1; 1163 horizontal_sync_end = (vm->hsync_end >> 3) - 1; 1164 horizontal_total = (vm->htotal >> 3) - 1; 1165 horizontal_blanking_start = horizontal_display_end; 1166 horizontal_blanking_end = horizontal_total; 1167 1168 vertical_display_enable_end = vm->vdisplay - 1; 1169 vertical_sync_start = vm->vsync_start; // - 1; 1170 vertical_sync_end = vm->vsync_end; // - 1; 1171 vertical_total = vm->vtotal - 2; 1172 vertical_blanking_start = vertical_display_enable_end; 1173 vertical_blanking_end = vertical_total; 1174 1175 misc = 0x0f | 1176 (vm->hdisplay < 400 ? 0xa0 : 1177 vm->hdisplay < 480 ? 0x60 : 1178 vm->hdisplay < 768 ? 0xe0 : 0x20); 1179 1180 mode->vr_seq[0] = 3; 1181 mode->vr_seq[1] = 1; 1182 mode->vr_seq[2] = 8; 1183 mode->vr_seq[3] = 0; 1184 mode->vr_seq[4] = 6; 1185 1186 /* crtc regs start */ 1187 mode->vr_crtc[0] = horizontal_total - 4; 1188 mode->vr_crtc[1] = horizontal_display_end; 1189 mode->vr_crtc[2] = horizontal_blanking_start; 1190 mode->vr_crtc[3] = 0x80 | (horizontal_blanking_end & 0x1f); 1191 mode->vr_crtc[4] = horizontal_sync_start; 1192 1193 mode->vr_crtc[5] = ((horizontal_blanking_end & 0x20) << 2) | 1194 (horizontal_sync_end & 0x1f); 1195 mode->vr_crtc[6] = vertical_total; 1196 mode->vr_crtc[7] = ((vertical_sync_start & 0x200) >> 2) | 1197 ((vertical_display_enable_end & 0x200) >> 3) | 1198 ((vertical_total & 0x200) >> 4) | 1199 0x10 | 1200 ((vertical_blanking_start & 0x100) >> 5) | 1201 ((vertical_sync_start & 0x100) >> 6) | 1202 ((vertical_display_enable_end & 0x100) >> 7) | 1203 ((vertical_total & 0x100) >> 8); 1204 1205 mode->vr_crtc[8] = 0; 1206 mode->vr_crtc[9] = 0x40 | 1207 ((vertical_blanking_start & 0x200) >> 4); 1208 1209 mode->vr_crtc[10] = 0; 1210 mode->vr_crtc[11] = 0; 1211 mode->vr_crtc[12] = 0; 1212 mode->vr_crtc[13] = 0; 1213 mode->vr_crtc[14] = 0; 1214 mode->vr_crtc[15] = 0; 1215 1216 mode->vr_crtc[16] = vertical_sync_start; 1217 mode->vr_crtc[17] = (vertical_sync_end & 0x0f) | 0x20; 1218 mode->vr_crtc[18] = vertical_display_enable_end; 1219 mode->vr_crtc[19] = wd; // CRTC offset 1220 mode->vr_crtc[20] = 0; 1221 mode->vr_crtc[21] = vertical_blanking_start; 1222 mode->vr_crtc[22] = vertical_blanking_end + 1; 1223 mode->vr_crtc[23] = 128; 1224 mode->vr_crtc[24] = 255; 1225 1226 /* overflow registers */ 1227 mode->vr_crtc[CRTC_HDISP_EXT] = 1228 (horizontal_total&0x100) >> 8 | 1229 (horizontal_display_end & 0x100) >> 6 | 1230 (horizontal_blanking_start & 0x100) >> 4 | 1231 (horizontal_blanking_end & 0x40) >> 1 | 1232 (horizontal_sync_start & 0x100) >> 2 | 1233 (horizontal_sync_end & 0x20) << 2; 1234 1235 mode->vr_crtc[CRTC_VDISP_EXT] = 1236 (vertical_total & 0x400) >> 10 | 1237 (vertical_display_enable_end & 0x400) >> 8 | 1238 (vertical_blanking_start & 0x400) >> 6 | 1239 (vertical_blanking_end & 0x400) >> 4; 1240 1241 /* attr regs start */ 1242 mode->vr_attr[0] = 0; 1243 mode->vr_attr[1] = 0; 1244 mode->vr_attr[2] = 0; 1245 mode->vr_attr[3] = 0; 1246 mode->vr_attr[4] = 0; 1247 mode->vr_attr[5] = 0; 1248 mode->vr_attr[6] = 0; 1249 mode->vr_attr[7] = 0; 1250 mode->vr_attr[8] = 0; 1251 mode->vr_attr[9] = 0; 1252 mode->vr_attr[10] = 0; 1253 mode->vr_attr[11] = 0; 1254 mode->vr_attr[12] = 0; 1255 mode->vr_attr[13] = 0; 1256 mode->vr_attr[14] = 0; 1257 mode->vr_attr[15] = 0; 1258 mode->vr_attr[16] = 1; 1259 mode->vr_attr[17] = 0; 1260 mode->vr_attr[18] = 15; 1261 mode->vr_attr[19] = 0; 1262 /* attr regs end */ 1263 1264 /* graph regs start */ 1265 mode->vr_graph[0] = 159; 1266 mode->vr_graph[1] = 127; 1267 mode->vr_graph[2] = 127; 1268 mode->vr_graph[3] = 131; 1269 mode->vr_graph[4] = 130; 1270 mode->vr_graph[5] = 142; 1271 mode->vr_graph[6] = 30; 1272 mode->vr_graph[7] = 245; 1273 mode->vr_graph[8] = 0; 1274 1275 vga_outb(sc, MISC_W, misc | 0x01); 1276 1277 for(i = 0; i < 5; i++) 1278 voodoo3_write_seq(sc, i, mode->vr_seq[i]); 1279 for (i = 0; i < CRTC_PCI_READBACK; i ++) 1280 voodoo3_write_crtc(sc, i, mode->vr_crtc[i]); 1281 for (i = 0; i < 0x14; i ++) 1282 voodoo3_write_attr(sc, i, mode->vr_attr[i]); 1283 for (i = 0; i < 0x09; i ++) 1284 voodoo3_write_gra(sc, i, mode->vr_graph[i]); 1285 } 1286 1287 static void 1288 voodoofb_set_videomode(struct voodoofb_softc *sc, 1289 const struct videomode *vm) 1290 { 1291 uint32_t miscinit0 = 0; 1292 int vidpll, fout; 1293 uint32_t vp, vidproc = VIDPROCDEFAULT; 1294 uint32_t bpp = 1; /* for now */ 1295 uint32_t bytes_per_row = vm->hdisplay * bpp; 1296 1297 sc->bits_per_pixel = bpp << 3; 1298 sc->width = vm->hdisplay; 1299 sc->height = vm->vdisplay; 1300 sc->linebytes = bytes_per_row; 1301 1302 voodoofb_setup_monitor(sc, vm); 1303 vp = voodoo3_read32(sc, VIDPROCCFG); 1304 1305 vidproc &= ~(0x1c0000); /* clear bits 18 to 20, bpp in vidproccfg */ 1306 /* enable bits 18 to 20 to the required bpp */ 1307 vidproc |= ((bpp - 1) << VIDCFG_PIXFMT_SHIFT); 1308 1309 vidpll = voodoofb_calc_pll(vm->dot_clock, &fout, 0); 1310 1311 #ifdef VOODOOFB_DEBUG 1312 printf("old vidproc: %08x\n", vp); 1313 printf("pll: %08x %d\n", vidpll, fout); 1314 #endif 1315 /* bit 10 of vidproccfg, is enabled or disabled as needed */ 1316 switch (bpp) { 1317 case 1: 1318 /* 1319 * bit 10 off for palettized modes only, off means 1320 * palette is used 1321 */ 1322 vidproc &= ~(1 << 10); 1323 break; 1324 #if 0 1325 case 2: 1326 #if __POWERPC__ 1327 miscinit0 = 0xc0000000; 1328 #endif 1329 /* bypass palette for 16bit modes */ 1330 vidproc |= (1 << 10); 1331 break; 1332 case 4: 1333 #if __POWERPC__ 1334 miscinit0 = 0x40000000; 1335 #endif 1336 vidproc |= (1 << 10); /* Same for 32bit modes */ 1337 break; 1338 #endif 1339 default: 1340 printf("We support only 8 bit for now\n"); 1341 return; 1342 } 1343 1344 voodoofb_wait_idle(sc); 1345 1346 voodoo3_write32(sc, MISCINIT1, voodoo3_read32(sc, MISCINIT1) | 0x01); 1347 1348 voodoo3_make_room(sc, 4); 1349 voodoo3_write32(sc, VGAINIT0, 4928); 1350 voodoo3_write32(sc, DACMODE, 0); 1351 voodoo3_write32(sc, VIDDESKSTRIDE, bytes_per_row); 1352 voodoo3_write32(sc, PLLCTRL0, vidpll); 1353 1354 voodoo3_make_room(sc, 5); 1355 voodoo3_write32(sc, VIDSCREENSIZE, sc->width | (sc->height << 12)); 1356 voodoo3_write32(sc, VIDDESKSTART, 0); 1357 1358 vidproc &= ~VIDCFG_HWCURSOR_ENABLE; 1359 voodoo3_write32(sc, VIDPROCCFG, vidproc); 1360 1361 voodoo3_write32(sc, VGAINIT1, 0); 1362 voodoo3_write32(sc, MISCINIT0, miscinit0); 1363 #ifdef VOODOOFB_DEBUG 1364 printf("vidproc: %08x\n", vidproc); 1365 #endif 1366 voodoo3_make_room(sc, 8); 1367 voodoo3_write32(sc, SRCBASE, 0); 1368 voodoo3_write32(sc, DSTBASE, 0); 1369 voodoo3_write32(sc, COMMANDEXTRA_2D, 0); 1370 voodoo3_write32(sc, CLIP0MIN, 0); 1371 voodoo3_write32(sc, CLIP0MAX, 0x0fff0fff); 1372 voodoo3_write32(sc, CLIP1MIN, 0); 1373 voodoo3_write32(sc, CLIP1MAX, 0x0fff0fff); 1374 voodoo3_write32(sc, SRCXY, 0); 1375 voodoofb_wait_idle(sc); 1376 printf("%s: switched to %dx%d, %d bit\n", device_xname(sc->sc_dev), 1377 sc->width, sc->height, sc->bits_per_pixel); 1378 } 1379 1380 static void 1381 voodoofb_init(struct voodoofb_softc *sc) 1382 { 1383 /* XXX */ 1384 uint32_t vgainit0 = 0; 1385 uint32_t vidcfg = 0; 1386 1387 #ifdef VOODOOFB_DEBUG 1388 printf("initializing engine..."); 1389 #endif 1390 vgainit0 = voodoo3_read32(sc, VGAINIT0); 1391 #ifdef VOODOOFB_DEBUG 1392 printf("vga: %08x", vgainit0); 1393 #endif 1394 vgainit0 |= 1395 VGAINIT0_8BIT_DAC | 1396 VGAINIT0_EXT_ENABLE | 1397 VGAINIT0_WAKEUP_3C3 | 1398 VGAINIT0_ALT_READBACK | 1399 VGAINIT0_EXTSHIFTOUT; 1400 1401 vidcfg = voodoo3_read32(sc, VIDPROCCFG); 1402 #ifdef VOODOOFB_DEBUG 1403 printf(" vidcfg: %08x\n", vidcfg); 1404 #endif 1405 vidcfg |= 1406 VIDCFG_VIDPROC_ENABLE | 1407 VIDCFG_DESK_ENABLE; 1408 vidcfg &= ~VIDCFG_HWCURSOR_ENABLE; 1409 1410 voodoo3_make_room(sc, 2); 1411 1412 voodoo3_write32(sc, VGAINIT0, vgainit0); 1413 voodoo3_write32(sc, VIDPROCCFG, vidcfg); 1414 1415 voodoo3_make_room(sc, 8); 1416 voodoo3_write32(sc, SRCBASE, 0); 1417 voodoo3_write32(sc, DSTBASE, 0); 1418 voodoo3_write32(sc, COMMANDEXTRA_2D, 0); 1419 voodoo3_write32(sc, CLIP0MIN, 0); 1420 voodoo3_write32(sc, CLIP0MAX, 0x1fff1fff); 1421 voodoo3_write32(sc, CLIP1MIN, 0); 1422 voodoo3_write32(sc, CLIP1MAX, 0x1fff1fff); 1423 voodoo3_write32(sc, SRCXY, 0); 1424 1425 voodoofb_wait_idle(sc); 1426 } 1427