1 /* $NetBSD: voodoofb.c,v 1.12 2007/12/01 17:00:41 ad 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 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 /* 31 * A console driver for 3Dfx Voodoo3 graphics boards 32 * Thanks to Andreas Drewke (andreas_dr@gmx.de) for his Voodoo3 driver for BeOS 33 * which I used as reference / documentation 34 */ 35 36 #include <sys/cdefs.h> 37 __KERNEL_RCSID(0, "$NetBSD: voodoofb.c,v 1.12 2007/12/01 17:00:41 ad Exp $"); 38 39 #include <sys/param.h> 40 #include <sys/systm.h> 41 #include <sys/kernel.h> 42 #include <sys/device.h> 43 #include <sys/malloc.h> 44 #include <sys/callout.h> 45 46 #include <uvm/uvm_extern.h> 47 48 #if defined(macppc) || defined (sparc64) || defined(ofppc) 49 #define HAVE_OPENFIRMWARE 50 #endif 51 52 /* XXX should be configurable */ 53 #define VOODOOFB_VIDEOMODE 15 54 55 #ifdef HAVE_OPENFIRMWARE 56 #include <dev/ofw/openfirm.h> 57 #include <dev/ofw/ofw_pci.h> 58 #endif 59 60 #include <dev/videomode/videomode.h> 61 62 #include <dev/pci/pcivar.h> 63 #include <dev/pci/pcireg.h> 64 #include <dev/pci/pcidevs.h> 65 #include <dev/pci/pciio.h> 66 #include <dev/pci/voodoofbreg.h> 67 68 #include <dev/wscons/wsdisplayvar.h> 69 #include <dev/wscons/wsconsio.h> 70 #include <dev/wsfont/wsfont.h> 71 #include <dev/rasops/rasops.h> 72 #include <dev/wscons/wsdisplay_vconsvar.h> 73 74 #include "opt_wsemul.h" 75 76 struct voodoofb_softc { 77 struct device sc_dev; 78 pci_chipset_tag_t sc_pc; 79 pcitag_t sc_pcitag; 80 struct pci_attach_args sc_pa; 81 82 bus_space_tag_t sc_memt; 83 bus_space_tag_t sc_iot; 84 bus_space_handle_t sc_memh; 85 86 bus_space_tag_t sc_regt; 87 bus_space_tag_t sc_fbt; 88 bus_space_tag_t sc_ioregt; 89 bus_space_handle_t sc_regh; 90 bus_space_handle_t sc_fbh; 91 bus_space_handle_t sc_ioregh; 92 bus_addr_t sc_regs, sc_fb, sc_ioreg; 93 bus_size_t sc_regsize, sc_fbsize, sc_ioregsize; 94 95 void *sc_ih; 96 97 size_t memsize; 98 int memtype; 99 100 int bits_per_pixel; 101 int width, height, linebytes; 102 103 int sc_mode; 104 uint32_t sc_bg; 105 106 u_char sc_cmap_red[256]; 107 u_char sc_cmap_green[256]; 108 u_char sc_cmap_blue[256]; 109 int sc_dacw; 110 111 struct vcons_data vd; 112 }; 113 114 struct voodoo_regs { 115 uint8_t vr_crtc[31]; 116 uint8_t vr_graph[9]; 117 uint8_t vr_attr[21]; 118 uint8_t vr_seq[5]; 119 }; 120 121 static struct vcons_screen voodoofb_console_screen; 122 123 extern const u_char rasops_cmap[768]; 124 125 static int voodoofb_match(struct device *, struct cfdata *, void *); 126 static void voodoofb_attach(struct device *, struct device *, void *); 127 128 static int voodoofb_drm_print(void *, const char *); 129 static int voodoofb_drm_unmap(struct voodoofb_softc *); 130 static int voodoofb_drm_map(struct voodoofb_softc *); 131 132 CFATTACH_DECL(voodoofb, sizeof(struct voodoofb_softc), voodoofb_match, 133 voodoofb_attach, NULL, NULL); 134 135 static int voodoofb_is_console(struct pci_attach_args *); 136 static void voodoofb_init(struct voodoofb_softc *); 137 138 static void voodoofb_cursor(void *, int, int, int); 139 static void voodoofb_putchar(void *, int, int, u_int, long); 140 static void voodoofb_copycols(void *, int, int, int, int); 141 static void voodoofb_erasecols(void *, int, int, int, long); 142 static void voodoofb_copyrows(void *, int, int, int); 143 static void voodoofb_eraserows(void *, int, int, long); 144 145 #if 0 146 static int voodoofb_allocattr(void *, int, int, int, long *); 147 static void voodoofb_scroll(void *, void *, int); 148 static int voodoofb_load_font(void *, void *, struct wsdisplay_font *); 149 #endif 150 151 static int voodoofb_putcmap(struct voodoofb_softc *, 152 struct wsdisplay_cmap *); 153 static int voodoofb_getcmap(struct voodoofb_softc *, 154 struct wsdisplay_cmap *); 155 static int voodoofb_putpalreg(struct voodoofb_softc *, uint8_t, uint8_t, 156 uint8_t, uint8_t); 157 static void voodoofb_bitblt(struct voodoofb_softc *, int, int, int, int, 158 int, int); 159 static void voodoofb_rectfill(struct voodoofb_softc *, int, int, int, int, 160 int); 161 static void voodoofb_rectinvert(struct voodoofb_softc *, int, int, int, 162 int); 163 static void voodoofb_setup_mono(struct voodoofb_softc *, int, int, int, 164 int, uint32_t, uint32_t); 165 static void voodoofb_feed_line(struct voodoofb_softc *, int, uint8_t *); 166 167 #ifdef VOODOOFB_DEBUG 168 static void voodoofb_showpal(struct voodoofb_softc *); 169 #endif 170 171 static void voodoofb_wait_idle(struct voodoofb_softc *); 172 173 #ifdef VOODOOFB_ENABLE_INTR 174 static int voodoofb_intr(void *); 175 #endif 176 177 static void voodoofb_set_videomode(struct voodoofb_softc *, 178 const struct videomode *); 179 180 struct wsscreen_descr voodoofb_defaultscreen = { 181 "default", 182 0, 0, 183 NULL, 184 8, 16, 185 WSSCREEN_WSCOLORS | WSSCREEN_HILIT, 186 NULL, 187 }; 188 189 const struct wsscreen_descr *_voodoofb_scrlist[] = { 190 &voodoofb_defaultscreen, 191 /* XXX other formats, graphics screen? */ 192 }; 193 194 struct wsscreen_list voodoofb_screenlist = { 195 sizeof(_voodoofb_scrlist) / sizeof(struct wsscreen_descr *), _voodoofb_scrlist 196 }; 197 198 static int voodoofb_ioctl(void *, void *, u_long, void *, int, 199 struct lwp *); 200 static paddr_t voodoofb_mmap(void *, void *, off_t, int); 201 202 static void voodoofb_clearscreen(struct voodoofb_softc *); 203 static void voodoofb_init_screen(void *, struct vcons_screen *, int, 204 long *); 205 206 207 struct wsdisplay_accessops voodoofb_accessops = { 208 voodoofb_ioctl, 209 voodoofb_mmap, 210 NULL, 211 NULL, 212 NULL, 213 NULL, /* load_font */ 214 NULL, /* polls */ 215 NULL, /* scroll */ 216 }; 217 218 /* 219 * Inline functions for getting access to register aperture. 220 */ 221 static inline void 222 voodoo3_write32(struct voodoofb_softc *sc, uint32_t reg, uint32_t val) 223 { 224 bus_space_write_4(sc->sc_regt, sc->sc_regh, reg, val); 225 } 226 227 static inline uint32_t 228 voodoo3_read32(struct voodoofb_softc *sc, uint32_t reg) 229 { 230 return bus_space_read_4(sc->sc_regt, sc->sc_regh, reg); 231 } 232 233 static inline void 234 voodoo3_write_crtc(struct voodoofb_softc *sc, uint8_t reg, uint8_t val) 235 { 236 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, CRTC_INDEX - 0x300, reg); 237 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, CRTC_DATA - 0x300, val); 238 } 239 240 static inline void 241 voodoo3_write_seq(struct voodoofb_softc *sc, uint8_t reg, uint8_t val) 242 { 243 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, SEQ_INDEX - 0x300, reg); 244 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, SEQ_DATA - 0x300, val); 245 } 246 247 static inline void 248 voodoo3_write_gra(struct voodoofb_softc *sc, uint8_t reg, uint8_t val) 249 { 250 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, GRA_INDEX - 0x300, reg); 251 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, GRA_DATA - 0x300, val); 252 } 253 254 static inline void 255 voodoo3_write_attr(struct voodoofb_softc *sc, uint8_t reg, uint8_t val) 256 { 257 volatile uint8_t junk; 258 uint8_t index; 259 260 junk = bus_space_read_1(sc->sc_ioregt, sc->sc_ioregh, IS1_R - 0x300); 261 index = bus_space_read_1(sc->sc_ioregt, sc->sc_ioregh, ATT_IW - 0x300); 262 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, ATT_IW - 0x300, reg); 263 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, ATT_IW - 0x300, val); 264 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, ATT_IW - 0x300, index); 265 } 266 267 static inline void 268 vga_outb(struct voodoofb_softc *sc, uint32_t reg, uint8_t val) 269 { 270 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, reg - 0x300, val); 271 } 272 273 /* wait until there's room for len bytes in the FIFO */ 274 static inline void 275 voodoo3_make_room(struct voodoofb_softc *sc, int len) 276 { 277 while ((voodoo3_read32(sc, STATUS) & 0x1f) < len); 278 } 279 280 static void 281 voodoofb_wait_idle(struct voodoofb_softc *sc) 282 { 283 int i = 0; 284 285 voodoo3_make_room(sc, 1); 286 voodoo3_write32(sc, COMMAND_3D, COMMAND_3D_NOP); 287 288 while (1) { 289 i = (voodoo3_read32(sc, STATUS) & STATUS_BUSY) ? 0 : i + 1; 290 if(i == 3) break; 291 } 292 } 293 294 static int 295 voodoofb_match(struct device *parent, struct cfdata *match, void *aux) 296 { 297 struct pci_attach_args *pa = (struct pci_attach_args *)aux; 298 299 if (PCI_CLASS(pa->pa_class) != PCI_CLASS_DISPLAY || 300 PCI_SUBCLASS(pa->pa_class) != PCI_SUBCLASS_DISPLAY_VGA) 301 return 0; 302 if ((PCI_VENDOR(pa->pa_id)==PCI_VENDOR_3DFX) && 303 (PCI_PRODUCT(pa->pa_id)>=PCI_PRODUCT_3DFX_VOODOO3)) 304 return 100; 305 return 0; 306 } 307 308 static void 309 voodoofb_attach(struct device *parent, struct device *self, void *aux) 310 { 311 struct voodoofb_softc *sc = (void *)self; 312 struct pci_attach_args *pa = aux; 313 char devinfo[256]; 314 struct wsemuldisplaydev_attach_args aa; 315 struct rasops_info *ri; 316 #ifdef VOODOOFB_ENABLE_INTR 317 pci_intr_handle_t ih; 318 const char *intrstr; 319 #endif 320 ulong defattr; 321 int console, width, height, i, j; 322 #ifdef HAVE_OPENFIRMWARE 323 int linebytes, depth, node; 324 #endif 325 uint32_t bg, fg, ul; 326 327 sc->sc_mode = WSDISPLAYIO_MODE_EMUL; 328 #ifdef HAVE_OPENFIRMWARE 329 node = pcidev_to_ofdev(pa->pa_pc, pa->pa_tag); 330 #endif 331 sc->sc_pc = pa->pa_pc; 332 sc->sc_pcitag = pa->pa_tag; 333 sc->sc_dacw = -1; 334 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo)); 335 printf(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class)); 336 337 sc->sc_memt = pa->pa_memt; 338 sc->sc_iot = pa->pa_iot; 339 sc->sc_pa = *pa; 340 341 /* the framebuffer */ 342 if (pci_mapreg_map(pa, 0x14, PCI_MAPREG_TYPE_MEM, 343 BUS_SPACE_MAP_CACHEABLE | BUS_SPACE_MAP_PREFETCHABLE | 344 BUS_SPACE_MAP_LINEAR, 345 &sc->sc_fbt, &sc->sc_fbh, &sc->sc_fb, &sc->sc_fbsize)) { 346 printf("%s: failed to map the frame buffer.\n", 347 sc->sc_dev.dv_xname); 348 } 349 350 /* memory-mapped registers */ 351 if (pci_mapreg_map(pa, 0x10, PCI_MAPREG_TYPE_MEM, 0, 352 &sc->sc_regt, &sc->sc_regh, &sc->sc_regs, &sc->sc_regsize)) { 353 printf("%s: failed to map memory-mapped registers.\n", 354 sc->sc_dev.dv_xname); 355 } 356 357 /* IO-mapped registers */ 358 if (pci_mapreg_map(pa, 0x18, PCI_MAPREG_TYPE_IO, 0, 359 &sc->sc_ioregt, &sc->sc_ioregh, &sc->sc_ioreg, 360 &sc->sc_ioregsize)) { 361 printf("%s: failed to map IO-mapped registers.\n", 362 sc->sc_dev.dv_xname); 363 } 364 voodoofb_init(sc); 365 366 /* we should read these from the chip instead of depending on OF */ 367 width = height = -1; 368 369 #ifdef HAVE_OPENFIRMWARE 370 if (OF_getprop(node, "width", &width, 4) != 4) 371 OF_interpret("screen-width", 1, 1, &width); 372 if (OF_getprop(node, "height", &height, 4) != 4) 373 OF_interpret("screen-height", 1, 1, &height); 374 if (OF_getprop(node, "linebytes", &linebytes, 4) != 4) 375 linebytes = width; /* XXX */ 376 if (OF_getprop(node, "depth", &depth, 4) != 4) 377 depth = 8; /* XXX */ 378 379 if (width == -1 || height == -1) 380 return; 381 382 sc->width = width; 383 sc->height = height; 384 sc->bits_per_pixel = depth; 385 sc->linebytes = linebytes; 386 printf("%s: initial resolution %dx%d, %d bit\n", sc->sc_dev.dv_xname, 387 sc->width, sc->height, sc->bits_per_pixel); 388 #endif 389 390 /* XXX this should at least be configurable via kernel config */ 391 voodoofb_set_videomode(sc, &videomode_list[VOODOOFB_VIDEOMODE]); 392 393 vcons_init(&sc->vd, sc, &voodoofb_defaultscreen, &voodoofb_accessops); 394 sc->vd.init_screen = voodoofb_init_screen; 395 396 console = voodoofb_is_console(pa); 397 398 ri = &voodoofb_console_screen.scr_ri; 399 if (console) { 400 vcons_init_screen(&sc->vd, &voodoofb_console_screen, 1, 401 &defattr); 402 voodoofb_console_screen.scr_flags |= VCONS_SCREEN_IS_STATIC; 403 404 voodoofb_defaultscreen.textops = &ri->ri_ops; 405 voodoofb_defaultscreen.capabilities = ri->ri_caps; 406 voodoofb_defaultscreen.nrows = ri->ri_rows; 407 voodoofb_defaultscreen.ncols = ri->ri_cols; 408 wsdisplay_cnattach(&voodoofb_defaultscreen, ri, 0, 0, defattr); 409 } else { 410 /* 411 * since we're not the console we can postpone the rest 412 * until someone actually allocates a screen for us 413 */ 414 voodoofb_set_videomode(sc, &videomode_list[0]); 415 } 416 417 printf("%s: %d MB aperture at 0x%08x, %d MB registers at 0x%08x\n", 418 sc->sc_dev.dv_xname, (u_int)(sc->sc_fbsize >> 20), 419 (u_int)sc->sc_fb, (u_int)(sc->sc_regsize >> 20), 420 (u_int)sc->sc_regs); 421 #ifdef VOODOOFB_DEBUG 422 printf("fb: %08lx\n", (ulong)ri->ri_bits); 423 #endif 424 425 j = 0; 426 for (i = 0; i < 256; i++) { 427 voodoofb_putpalreg(sc, i, rasops_cmap[j], rasops_cmap[j + 1], 428 rasops_cmap[j + 2]); 429 j += 3; 430 } 431 432 #ifdef VOODOOFB_ENABLE_INTR 433 /* Interrupt. We don't use it for anything yet */ 434 if (pci_intr_map(pa, &ih)) { 435 printf("%s: failed to map interrupt\n", sc->sc_dev.dv_xname); 436 return; 437 } 438 439 intrstr = pci_intr_string(sc->sc_pc, ih); 440 sc->sc_ih = pci_intr_establish(sc->sc_pc, ih, IPL_NET, voodoofb_intr, 441 sc); 442 if (sc->sc_ih == NULL) { 443 printf("%s: failed to establish interrupt", 444 sc->sc_dev.dv_xname); 445 if (intrstr != NULL) 446 printf(" at %s", intrstr); 447 printf("\n"); 448 return; 449 } 450 printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr); 451 #endif 452 453 rasops_unpack_attr(defattr, &fg, &bg, &ul); 454 sc->sc_bg = ri->ri_devcmap[bg]; 455 voodoofb_clearscreen(sc); 456 457 aa.console = console; 458 aa.scrdata = &voodoofb_screenlist; 459 aa.accessops = &voodoofb_accessops; 460 aa.accesscookie = &sc->vd; 461 462 config_found(self, &aa, wsemuldisplaydevprint); 463 config_found_ia(self, "drm", aux, voodoofb_drm_print); 464 } 465 466 static int 467 voodoofb_drm_print(void *opaque, const char *pnp) 468 { 469 if (pnp) 470 aprint_normal("direct rendering for %s", pnp); 471 472 return UNSUPP; 473 } 474 475 static int 476 voodoofb_drm_unmap(struct voodoofb_softc *sc) 477 { 478 printf("%s: releasing bus resources\n", sc->sc_dev.dv_xname); 479 480 bus_space_unmap(sc->sc_ioregt, sc->sc_ioregh, sc->sc_ioregsize); 481 bus_space_unmap(sc->sc_regt, sc->sc_regh, sc->sc_regsize); 482 bus_space_unmap(sc->sc_fbt, sc->sc_fbh, sc->sc_fbsize); 483 484 return 0; 485 } 486 487 static int 488 voodoofb_drm_map(struct voodoofb_softc *sc) 489 { 490 if (pci_mapreg_map(&sc->sc_pa, 0x14, PCI_MAPREG_TYPE_MEM, 491 BUS_SPACE_MAP_CACHEABLE | BUS_SPACE_MAP_PREFETCHABLE | 492 BUS_SPACE_MAP_LINEAR, 493 &sc->sc_fbt, &sc->sc_fbh, &sc->sc_fb, &sc->sc_fbsize)) { 494 printf("%s: failed to map the frame buffer.\n", 495 sc->sc_dev.dv_xname); 496 } 497 498 /* memory-mapped registers */ 499 if (pci_mapreg_map(&sc->sc_pa, 0x10, PCI_MAPREG_TYPE_MEM, 0, 500 &sc->sc_regt, &sc->sc_regh, &sc->sc_regs, &sc->sc_regsize)) { 501 printf("%s: failed to map memory-mapped registers.\n", 502 sc->sc_dev.dv_xname); 503 } 504 505 /* IO-mapped registers */ 506 if (pci_mapreg_map(&sc->sc_pa, 0x18, PCI_MAPREG_TYPE_IO, 0, 507 &sc->sc_ioregt, &sc->sc_ioregh, &sc->sc_ioreg, 508 &sc->sc_ioregsize)) { 509 printf("%s: failed to map IO-mapped registers.\n", 510 sc->sc_dev.dv_xname); 511 } 512 513 voodoofb_init(sc); 514 /* XXX this should at least be configurable via kernel config */ 515 voodoofb_set_videomode(sc, &videomode_list[VOODOOFB_VIDEOMODE]); 516 517 return 0; 518 } 519 520 static int 521 voodoofb_putpalreg(struct voodoofb_softc *sc, uint8_t index, uint8_t r, 522 uint8_t g, uint8_t b) 523 { 524 uint32_t color; 525 526 sc->sc_cmap_red[index] = r; 527 sc->sc_cmap_green[index] = g; 528 sc->sc_cmap_blue[index] = b; 529 530 color = (r << 16) | (g << 8) | b; 531 voodoo3_make_room(sc, 2); 532 voodoo3_write32(sc, DACADDR, index); 533 voodoo3_write32(sc, DACDATA, color); 534 535 return 0; 536 } 537 538 static int 539 voodoofb_putcmap(struct voodoofb_softc *sc, struct wsdisplay_cmap *cm) 540 { 541 u_char *r, *g, *b; 542 u_int index = cm->index; 543 u_int count = cm->count; 544 int i, error; 545 u_char rbuf[256], gbuf[256], bbuf[256]; 546 547 #ifdef VOODOOFB_DEBUG 548 printf("putcmap: %d %d\n",index, count); 549 #endif 550 if (cm->index >= 256 || cm->count > 256 || 551 (cm->index + cm->count) > 256) 552 return EINVAL; 553 error = copyin(cm->red, &rbuf[index], count); 554 if (error) 555 return error; 556 error = copyin(cm->green, &gbuf[index], count); 557 if (error) 558 return error; 559 error = copyin(cm->blue, &bbuf[index], count); 560 if (error) 561 return error; 562 563 memcpy(&sc->sc_cmap_red[index], &rbuf[index], count); 564 memcpy(&sc->sc_cmap_green[index], &gbuf[index], count); 565 memcpy(&sc->sc_cmap_blue[index], &bbuf[index], count); 566 567 r = &sc->sc_cmap_red[index]; 568 g = &sc->sc_cmap_green[index]; 569 b = &sc->sc_cmap_blue[index]; 570 571 for (i = 0; i < count; i++) { 572 voodoofb_putpalreg(sc, index, *r, *g, *b); 573 index++; 574 r++, g++, b++; 575 } 576 return 0; 577 } 578 579 static int 580 voodoofb_getcmap(struct voodoofb_softc *sc, struct wsdisplay_cmap *cm) 581 { 582 u_int index = cm->index; 583 u_int count = cm->count; 584 int error; 585 586 if (index >= 255 || count > 256 || index + count > 256) 587 return EINVAL; 588 589 error = copyout(&sc->sc_cmap_red[index], cm->red, count); 590 if (error) 591 return error; 592 error = copyout(&sc->sc_cmap_green[index], cm->green, count); 593 if (error) 594 return error; 595 error = copyout(&sc->sc_cmap_blue[index], cm->blue, count); 596 if (error) 597 return error; 598 599 return 0; 600 } 601 602 static int 603 voodoofb_is_console(struct pci_attach_args *pa) 604 { 605 606 #ifdef HAVE_OPENFIRMWARE 607 /* check if we're the /chosen console device */ 608 int chosen, stdout, node, us; 609 610 us=pcidev_to_ofdev(pa->pa_pc, pa->pa_tag); 611 chosen = OF_finddevice("/chosen"); 612 OF_getprop(chosen, "stdout", &stdout, 4); 613 node = OF_instance_to_package(stdout); 614 return(us == node); 615 #else 616 /* XXX how do we know we're console on i386? */ 617 return 1; 618 #endif 619 } 620 621 static void 622 voodoofb_clearscreen(struct voodoofb_softc *sc) 623 { 624 voodoofb_rectfill(sc, 0, 0, sc->width, sc->height, sc->sc_bg); 625 } 626 627 /* 628 * wsdisplay_emulops 629 */ 630 631 static void 632 voodoofb_cursor(void *cookie, int on, int row, int col) 633 { 634 struct rasops_info *ri = cookie; 635 struct vcons_screen *scr = ri->ri_hw; 636 struct voodoofb_softc *sc = scr->scr_cookie; 637 int x, y, wi, he; 638 639 wi = ri->ri_font->fontwidth; 640 he = ri->ri_font->fontheight; 641 642 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 643 x = ri->ri_ccol * wi + ri->ri_xorigin; 644 y = ri->ri_crow * he + ri->ri_yorigin; 645 if (ri->ri_flg & RI_CURSOR) { 646 voodoofb_rectinvert(sc, x, y, wi, he); 647 ri->ri_flg &= ~RI_CURSOR; 648 } 649 ri->ri_crow = row; 650 ri->ri_ccol = col; 651 if (on) 652 { 653 x = ri->ri_ccol * wi + ri->ri_xorigin; 654 y = ri->ri_crow * he + ri->ri_yorigin; 655 voodoofb_rectinvert(sc, x, y, wi, he); 656 ri->ri_flg |= RI_CURSOR; 657 } 658 } else { 659 ri->ri_flg &= ~RI_CURSOR; 660 ri->ri_crow = row; 661 ri->ri_ccol = col; 662 } 663 } 664 665 #if 0 666 int 667 voodoofb_mapchar(void *cookie, int uni, u_int *index) 668 { 669 return 0; 670 } 671 #endif 672 673 static void 674 voodoofb_putchar(void *cookie, int row, int col, u_int c, long attr) 675 { 676 struct rasops_info *ri = cookie; 677 struct vcons_screen *scr = ri->ri_hw; 678 struct voodoofb_softc *sc = scr->scr_cookie; 679 680 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 681 uint8_t *data; 682 int fg, bg, uc, i; 683 int x, y, wi, he; 684 685 wi = ri->ri_font->fontwidth; 686 he = ri->ri_font->fontheight; 687 688 if (!CHAR_IN_FONT(c, ri->ri_font)) 689 return; 690 bg = (u_char)ri->ri_devcmap[(attr >> 16) & 0xf]; 691 fg = (u_char)ri->ri_devcmap[(attr >> 24) & 0xf]; 692 x = ri->ri_xorigin + col * wi; 693 y = ri->ri_yorigin + row * he; 694 if (c == 0x20) { 695 voodoofb_rectfill(sc, x, y, wi, he, bg); 696 } else { 697 uc = c-ri->ri_font->firstchar; 698 data = (uint8_t *)ri->ri_font->data + uc * 699 ri->ri_fontscale; 700 voodoofb_setup_mono(sc, x, y, wi, he, fg, bg); 701 for (i = 0; i < he; i++) { 702 voodoofb_feed_line(sc, 703 ri->ri_font->stride, data); 704 data += ri->ri_font->stride; 705 } 706 } 707 } 708 } 709 710 static void 711 voodoofb_copycols(void *cookie, int row, int srccol, int dstcol, int ncols) 712 { 713 struct rasops_info *ri = cookie; 714 struct vcons_screen *scr = ri->ri_hw; 715 struct voodoofb_softc *sc = scr->scr_cookie; 716 int32_t xs, xd, y, width, height; 717 718 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 719 xs = ri->ri_xorigin + ri->ri_font->fontwidth * srccol; 720 xd = ri->ri_xorigin + ri->ri_font->fontwidth * dstcol; 721 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 722 width = ri->ri_font->fontwidth * ncols; 723 height = ri->ri_font->fontheight; 724 voodoofb_bitblt(sc, xs, y, xd, y, width, height); 725 } 726 } 727 728 static void 729 voodoofb_erasecols(void *cookie, int row, int startcol, int ncols, 730 long fillattr) 731 { 732 struct rasops_info *ri = cookie; 733 struct vcons_screen *scr = ri->ri_hw; 734 struct voodoofb_softc *sc = scr->scr_cookie; 735 int32_t x, y, width, height, fg, bg, ul; 736 737 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 738 x = ri->ri_xorigin + ri->ri_font->fontwidth * startcol; 739 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 740 width = ri->ri_font->fontwidth * ncols; 741 height = ri->ri_font->fontheight; 742 rasops_unpack_attr(fillattr, &fg, &bg, &ul); 743 744 voodoofb_rectfill(sc, x, y, width, height, ri->ri_devcmap[bg]); 745 } 746 } 747 748 static void 749 voodoofb_copyrows(void *cookie, int srcrow, int dstrow, int nrows) 750 { 751 struct rasops_info *ri = cookie; 752 struct vcons_screen *scr = ri->ri_hw; 753 struct voodoofb_softc *sc = scr->scr_cookie; 754 int32_t x, ys, yd, width, height; 755 756 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 757 x = ri->ri_xorigin; 758 ys = ri->ri_yorigin + ri->ri_font->fontheight * srcrow; 759 yd = ri->ri_yorigin + ri->ri_font->fontheight * dstrow; 760 width = ri->ri_emuwidth; 761 height = ri->ri_font->fontheight * nrows; 762 voodoofb_bitblt(sc, x, ys, x, yd, width, height); 763 } 764 } 765 766 static void 767 voodoofb_eraserows(void *cookie, int row, int nrows, long fillattr) 768 { 769 struct rasops_info *ri = cookie; 770 struct vcons_screen *scr = ri->ri_hw; 771 struct voodoofb_softc *sc = scr->scr_cookie; 772 int32_t x, y, width, height, fg, bg, ul; 773 774 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 775 rasops_unpack_attr(fillattr, &fg, &bg, &ul); 776 if ((row == 0) && (nrows == ri->ri_rows)) { 777 /* clear the whole screen */ 778 voodoofb_rectfill(sc, 0, 0, ri->ri_width, 779 ri->ri_height, ri->ri_devcmap[bg]); 780 } else { 781 x = ri->ri_xorigin; 782 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 783 width = ri->ri_emuwidth; 784 height = ri->ri_font->fontheight * nrows; 785 voodoofb_rectfill(sc, x, y, width, height, 786 ri->ri_devcmap[bg]); 787 } 788 } 789 } 790 791 static void 792 voodoofb_bitblt(struct voodoofb_softc *sc, int xs, int ys, int xd, int yd, int width, int height) 793 { 794 uint32_t fmt, blitcmd; 795 796 fmt = sc->linebytes | ((sc->bits_per_pixel + 797 ((sc->bits_per_pixel == 8) ? 0 : 8)) << 13); 798 blitcmd = COMMAND_2D_S2S_BITBLT | (ROP_COPY << 24); 799 800 if (xs <= xd) { 801 blitcmd |= BIT(14); 802 xs += (width - 1); 803 xd += (width - 1); 804 } 805 if (ys <= yd) { 806 blitcmd |= BIT(15); 807 ys += (height - 1); 808 yd += (height - 1); 809 } 810 voodoo3_make_room(sc, 6); 811 812 voodoo3_write32(sc, SRCFORMAT, fmt); 813 voodoo3_write32(sc, DSTFORMAT, fmt); 814 voodoo3_write32(sc, DSTSIZE, width | (height << 16)); 815 voodoo3_write32(sc, DSTXY, xd | (yd << 16)); 816 voodoo3_write32(sc, SRCXY, xs | (ys << 16)); 817 voodoo3_write32(sc, COMMAND_2D, blitcmd | SST_2D_GO); 818 } 819 820 static void 821 voodoofb_rectfill(struct voodoofb_softc *sc, int x, int y, int width, 822 int height, int colour) 823 { 824 uint32_t fmt, col; 825 826 col = (colour << 24) | (colour << 16) | (colour << 8) | colour; 827 fmt = sc->linebytes | ((sc->bits_per_pixel + 828 ((sc->bits_per_pixel == 8) ? 0 : 8)) << 13); 829 830 voodoo3_make_room(sc, 6); 831 voodoo3_write32(sc, DSTFORMAT, fmt); 832 voodoo3_write32(sc, COLORFORE, colour); 833 voodoo3_write32(sc, COLORBACK, colour); 834 voodoo3_write32(sc, COMMAND_2D, COMMAND_2D_FILLRECT | (ROP_COPY << 24)); 835 voodoo3_write32(sc, DSTSIZE, width | (height << 16)); 836 voodoo3_write32(sc, LAUNCH_2D, x | (y << 16)); 837 } 838 839 static void 840 voodoofb_rectinvert(struct voodoofb_softc *sc, int x, int y, int width, 841 int height) 842 { 843 uint32_t fmt; 844 845 fmt = sc->linebytes | ((sc->bits_per_pixel + 846 ((sc->bits_per_pixel == 8) ? 0 : 8)) << 13); 847 848 voodoo3_make_room(sc, 6); 849 voodoo3_write32(sc, DSTFORMAT, fmt); 850 voodoo3_write32(sc, COMMAND_2D, COMMAND_2D_FILLRECT | 851 (ROP_INVERT << 24)); 852 voodoo3_write32(sc, DSTSIZE, width | (height << 16)); 853 voodoo3_write32(sc, DSTXY, x | (y << 16)); 854 voodoo3_write32(sc, LAUNCH_2D, x | (y << 16)); 855 } 856 857 static void 858 voodoofb_setup_mono(struct voodoofb_softc *sc, int xd, int yd, int width, int height, uint32_t fg, 859 uint32_t bg) 860 { 861 uint32_t dfmt, sfmt = sc->linebytes; 862 863 dfmt = sc->linebytes | ((sc->bits_per_pixel + 864 ((sc->bits_per_pixel == 8) ? 0 : 8)) << 13); 865 866 voodoo3_make_room(sc, 9); 867 voodoo3_write32(sc, SRCFORMAT, sfmt); 868 voodoo3_write32(sc, DSTFORMAT, dfmt); 869 voodoo3_write32(sc, COLORFORE, fg); 870 voodoo3_write32(sc, COLORBACK, bg); 871 voodoo3_write32(sc, DSTSIZE, width | (height << 16)); 872 voodoo3_write32(sc, DSTXY, xd | (yd << 16)); 873 voodoo3_write32(sc, SRCXY, 0); 874 voodoo3_write32(sc, COMMAND_2D, COMMAND_2D_H2S_BITBLT | 875 (ROP_COPY << 24) | SST_2D_GO); 876 877 /* now feed the data into the chip */ 878 } 879 880 static void 881 voodoofb_feed_line(struct voodoofb_softc *sc, int count, uint8_t *data) 882 { 883 int i; 884 uint32_t latch = 0, bork; 885 int shift = 0; 886 887 voodoo3_make_room(sc, count); 888 for (i = 0; i < count; i++) { 889 bork = data[i]; 890 latch |= (bork << shift); 891 if (shift == 24) { 892 voodoo3_write32(sc, LAUNCH_2D, latch); 893 latch = 0; 894 shift = 0; 895 } else 896 shift += 8; 897 } 898 if (shift != 24) 899 voodoo3_write32(sc, LAUNCH_2D, latch); 900 } 901 902 #ifdef VOODOOFB_DEBUG 903 static void 904 voodoofb_showpal(struct voodoofb_softc *sc) 905 { 906 int i, x = 0; 907 908 for (i = 0; i < 16; i++) { 909 voodoofb_rectfill(sc, x, 0, 64, 64, i); 910 x += 64; 911 } 912 } 913 #endif 914 915 #if 0 916 static int 917 voodoofb_allocattr(void *cookie, int fg, int bg, int flags, long *attrp) 918 { 919 920 return 0; 921 } 922 #endif 923 924 /* 925 * wsdisplay_accessops 926 */ 927 928 static int 929 voodoofb_ioctl(void *v, void *vs, u_long cmd, void *data, int flag, 930 struct lwp *l) 931 { 932 struct vcons_data *vd = v; 933 struct voodoofb_softc *sc = vd->cookie; 934 struct wsdisplay_fbinfo *wdf; 935 struct vcons_screen *ms = vd->active; 936 937 switch (cmd) { 938 case WSDISPLAYIO_GTYPE: 939 *(u_int *)data = WSDISPLAY_TYPE_PCIMISC; 940 return 0; 941 942 case WSDISPLAYIO_GINFO: 943 wdf = (void *)data; 944 wdf->height = ms->scr_ri.ri_height; 945 wdf->width = ms->scr_ri.ri_width; 946 wdf->depth = ms->scr_ri.ri_depth; 947 wdf->cmsize = 256; 948 return 0; 949 950 case WSDISPLAYIO_GETCMAP: 951 return voodoofb_getcmap(sc, 952 (struct wsdisplay_cmap *)data); 953 954 case WSDISPLAYIO_PUTCMAP: 955 return voodoofb_putcmap(sc, 956 (struct wsdisplay_cmap *)data); 957 958 /* PCI config read/write passthrough. */ 959 case PCI_IOC_CFGREAD: 960 case PCI_IOC_CFGWRITE: 961 return (pci_devioctl(sc->sc_pc, sc->sc_pcitag, 962 cmd, data, flag, l)); 963 964 case WSDISPLAYIO_SMODE: 965 { 966 int new_mode = *(int*)data; 967 if (new_mode != sc->sc_mode) 968 { 969 sc->sc_mode = new_mode; 970 if(new_mode == WSDISPLAYIO_MODE_EMUL) 971 { 972 voodoofb_drm_map(sc); 973 int i; 974 975 /* restore the palette */ 976 for (i = 0; i < 256; i++) { 977 voodoofb_putpalreg(sc, 978 i, 979 sc->sc_cmap_red[i], 980 sc->sc_cmap_green[i], 981 sc->sc_cmap_blue[i]); 982 } 983 vcons_redraw_screen(ms); 984 } else 985 voodoofb_drm_unmap(sc); 986 } 987 } 988 return 0; 989 } 990 return EPASSTHROUGH; 991 } 992 993 static paddr_t 994 voodoofb_mmap(void *v, void *vs, off_t offset, int prot) 995 { 996 struct vcons_data *vd = v; 997 struct voodoofb_softc *sc = vd->cookie; 998 paddr_t pa; 999 1000 /* 'regular' framebuffer mmap()ing */ 1001 if (offset < sc->sc_fbsize) { 1002 pa = bus_space_mmap(sc->sc_fbt, offset, 0, prot, 1003 BUS_SPACE_MAP_LINEAR); 1004 return pa; 1005 } 1006 1007 if ((offset >= sc->sc_fb) && (offset < (sc->sc_fb + sc->sc_fbsize))) { 1008 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 1009 BUS_SPACE_MAP_LINEAR); 1010 return pa; 1011 } 1012 1013 if ((offset >= sc->sc_regs) && (offset < (sc->sc_regs + 1014 sc->sc_regsize))) { 1015 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 1016 BUS_SPACE_MAP_LINEAR); 1017 return pa; 1018 } 1019 1020 /* allow mapping of IO space */ 1021 if ((offset >= 0xf2000000) && (offset < 0xf2800000)) { 1022 pa = bus_space_mmap(sc->sc_iot, offset-0xf2000000, 0, prot, 1023 BUS_SPACE_MAP_LINEAR); 1024 return pa; 1025 } 1026 #ifdef OFB_ALLOW_OTHERS 1027 if (offset >= 0x80000000) { 1028 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 1029 BUS_SPACE_MAP_LINEAR); 1030 return pa; 1031 } 1032 #endif 1033 return -1; 1034 } 1035 1036 static void 1037 voodoofb_init_screen(void *cookie, struct vcons_screen *scr, 1038 int existing, long *defattr) 1039 { 1040 struct voodoofb_softc *sc = cookie; 1041 struct rasops_info *ri = &scr->scr_ri; 1042 1043 ri->ri_depth = sc->bits_per_pixel; 1044 ri->ri_width = sc->width; 1045 ri->ri_height = sc->height; 1046 ri->ri_stride = sc->width; 1047 ri->ri_flg = RI_CENTER | RI_FULLCLEAR; 1048 1049 ri->ri_bits = bus_space_vaddr(sc->sc_fbt, sc->sc_fbh); 1050 1051 #ifdef VOODOOFB_DEBUG 1052 printf("addr: %08lx\n", (ulong)ri->ri_bits); 1053 #endif 1054 if (existing) { 1055 ri->ri_flg |= RI_CLEAR; 1056 } 1057 1058 rasops_init(ri, sc->height/8, sc->width/8); 1059 ri->ri_caps = WSSCREEN_WSCOLORS; 1060 1061 rasops_reconfig(ri, sc->height / ri->ri_font->fontheight, 1062 sc->width / ri->ri_font->fontwidth); 1063 1064 ri->ri_hw = scr; 1065 ri->ri_ops.copyrows = voodoofb_copyrows; 1066 ri->ri_ops.copycols = voodoofb_copycols; 1067 ri->ri_ops.eraserows = voodoofb_eraserows; 1068 ri->ri_ops.erasecols = voodoofb_erasecols; 1069 ri->ri_ops.cursor = voodoofb_cursor; 1070 ri->ri_ops.putchar = voodoofb_putchar; 1071 } 1072 1073 #if 0 1074 int 1075 voodoofb_load_font(void *v, void *cookie, struct wsdisplay_font *data) 1076 { 1077 1078 return 0; 1079 } 1080 #endif 1081 1082 #ifdef VOODOOFB_ENABLE_INTR 1083 static int 1084 voodoofb_intr(void *arg) 1085 { 1086 struct voodoofb_softc *sc = arg; 1087 1088 voodoo3_write32(sc, V3_STATUS, 0); /* clear interrupts */ 1089 return 1; 1090 } 1091 #endif 1092 1093 /* video mode stuff */ 1094 1095 #define REFFREQ 14318 /* .18 */ 1096 1097 #define ABS(a) ((a < 0) ? -a : a) 1098 1099 static int 1100 voodoofb_calc_pll(int freq, int *f_out, int isBanshee) 1101 { 1102 int m, n, k, best_m, best_n, best_k, f_cur, best_error; 1103 int minm, maxm; 1104 1105 best_error = freq; 1106 best_n = best_m = best_k = 0; 1107 1108 if (isBanshee) { 1109 minm = 24; 1110 maxm = 24; 1111 } else { 1112 minm = 1; 1113 maxm = 57; 1114 /* This used to be 64, alas it seems the last 8 (funny that ?) 1115 * values cause jittering at lower resolutions. I've not done 1116 * any calculations to what the adjustment affects clock ranges, 1117 * but I can still run at 1600x1200@75Hz */ 1118 } 1119 for (n = 1; n < 256; n++) { 1120 f_cur = REFFREQ * (n + 2); 1121 if (f_cur < freq) { 1122 f_cur = f_cur / 3; 1123 if (freq - f_cur < best_error) { 1124 best_error = freq - f_cur; 1125 best_n = n; 1126 best_m = 1; 1127 best_k = 0; 1128 continue; 1129 } 1130 } 1131 for (m = minm; m < maxm; m++) { 1132 for (k = 0; k < 4; k++) { 1133 f_cur = REFFREQ * (n + 2) / (m + 2) / (1 << k); 1134 if (ABS(f_cur - freq) < best_error) { 1135 best_error = ABS(f_cur - freq); 1136 best_n = n; 1137 best_m = m; 1138 best_k = k; 1139 } 1140 } 1141 } 1142 } 1143 n = best_n; 1144 m = best_m; 1145 k = best_k; 1146 *f_out = REFFREQ * (n + 2) / (m + 2) / (1 << k); 1147 return ( n << 8) | (m << 2) | k; 1148 } 1149 1150 static void 1151 voodoofb_setup_monitor(struct voodoofb_softc *sc, const struct videomode *vm) 1152 { 1153 struct voodoo_regs mod; 1154 struct voodoo_regs *mode; 1155 uint32_t horizontal_display_end, horizontal_sync_start, 1156 horizontal_sync_end, horizontal_total, 1157 horizontal_blanking_start, horizontal_blanking_end; 1158 1159 uint32_t vertical_display_enable_end, vertical_sync_start, 1160 vertical_sync_end, vertical_total, vertical_blanking_start, 1161 vertical_blanking_end; 1162 1163 uint32_t wd; // CRTC offset 1164 1165 int i; 1166 1167 uint8_t misc; 1168 1169 memset(&mod, 0, sizeof(mode)); 1170 1171 mode = &mod; 1172 1173 wd = (vm->hdisplay >> 3) - 1; 1174 horizontal_display_end = (vm->hdisplay >> 3) - 1; 1175 horizontal_sync_start = (vm->hsync_start >> 3) - 1; 1176 horizontal_sync_end = (vm->hsync_end >> 3) - 1; 1177 horizontal_total = (vm->htotal >> 3) - 1; 1178 horizontal_blanking_start = horizontal_display_end; 1179 horizontal_blanking_end = horizontal_total; 1180 1181 vertical_display_enable_end = vm->vdisplay - 1; 1182 vertical_sync_start = vm->vsync_start; // - 1; 1183 vertical_sync_end = vm->vsync_end; // - 1; 1184 vertical_total = vm->vtotal - 2; 1185 vertical_blanking_start = vertical_display_enable_end; 1186 vertical_blanking_end = vertical_total; 1187 1188 misc = 0x0f | 1189 (vm->hdisplay < 400 ? 0xa0 : 1190 vm->hdisplay < 480 ? 0x60 : 1191 vm->hdisplay < 768 ? 0xe0 : 0x20); 1192 1193 mode->vr_seq[0] = 3; 1194 mode->vr_seq[1] = 1; 1195 mode->vr_seq[2] = 8; 1196 mode->vr_seq[3] = 0; 1197 mode->vr_seq[4] = 6; 1198 1199 /* crtc regs start */ 1200 mode->vr_crtc[0] = horizontal_total - 4; 1201 mode->vr_crtc[1] = horizontal_display_end; 1202 mode->vr_crtc[2] = horizontal_blanking_start; 1203 mode->vr_crtc[3] = 0x80 | (horizontal_blanking_end & 0x1f); 1204 mode->vr_crtc[4] = horizontal_sync_start; 1205 1206 mode->vr_crtc[5] = ((horizontal_blanking_end & 0x20) << 2) | 1207 (horizontal_sync_end & 0x1f); 1208 mode->vr_crtc[6] = vertical_total; 1209 mode->vr_crtc[7] = ((vertical_sync_start & 0x200) >> 2) | 1210 ((vertical_display_enable_end & 0x200) >> 3) | 1211 ((vertical_total & 0x200) >> 4) | 1212 0x10 | 1213 ((vertical_blanking_start & 0x100) >> 5) | 1214 ((vertical_sync_start & 0x100) >> 6) | 1215 ((vertical_display_enable_end & 0x100) >> 7) | 1216 ((vertical_total & 0x100) >> 8); 1217 1218 mode->vr_crtc[8] = 0; 1219 mode->vr_crtc[9] = 0x40 | 1220 ((vertical_blanking_start & 0x200) >> 4); 1221 1222 mode->vr_crtc[10] = 0; 1223 mode->vr_crtc[11] = 0; 1224 mode->vr_crtc[12] = 0; 1225 mode->vr_crtc[13] = 0; 1226 mode->vr_crtc[14] = 0; 1227 mode->vr_crtc[15] = 0; 1228 1229 mode->vr_crtc[16] = vertical_sync_start; 1230 mode->vr_crtc[17] = (vertical_sync_end & 0x0f) | 0x20; 1231 mode->vr_crtc[18] = vertical_display_enable_end; 1232 mode->vr_crtc[19] = wd; // CRTC offset 1233 mode->vr_crtc[20] = 0; 1234 mode->vr_crtc[21] = vertical_blanking_start; 1235 mode->vr_crtc[22] = vertical_blanking_end + 1; 1236 mode->vr_crtc[23] = 128; 1237 mode->vr_crtc[24] = 255; 1238 1239 /* attr regs start */ 1240 mode->vr_attr[0] = 0; 1241 mode->vr_attr[1] = 0; 1242 mode->vr_attr[2] = 0; 1243 mode->vr_attr[3] = 0; 1244 mode->vr_attr[4] = 0; 1245 mode->vr_attr[5] = 0; 1246 mode->vr_attr[6] = 0; 1247 mode->vr_attr[7] = 0; 1248 mode->vr_attr[8] = 0; 1249 mode->vr_attr[9] = 0; 1250 mode->vr_attr[10] = 0; 1251 mode->vr_attr[11] = 0; 1252 mode->vr_attr[12] = 0; 1253 mode->vr_attr[13] = 0; 1254 mode->vr_attr[14] = 0; 1255 mode->vr_attr[15] = 0; 1256 mode->vr_attr[16] = 1; 1257 mode->vr_attr[17] = 0; 1258 mode->vr_attr[18] = 15; 1259 mode->vr_attr[19] = 0; 1260 /* attr regs end */ 1261 1262 /* graph regs start */ 1263 mode->vr_graph[0] = 159; 1264 mode->vr_graph[1] = 127; 1265 mode->vr_graph[2] = 127; 1266 mode->vr_graph[3] = 131; 1267 mode->vr_graph[4] = 130; 1268 mode->vr_graph[5] = 142; 1269 mode->vr_graph[6] = 30; 1270 mode->vr_graph[7] = 245; 1271 mode->vr_graph[8] = 0; 1272 1273 vga_outb(sc, MISC_W, misc | 0x01); 1274 1275 for(i = 0; i < 5; i++) 1276 voodoo3_write_seq(sc, i, mode->vr_seq[i]); 1277 for (i = 0; i < 0x19; i ++) 1278 voodoo3_write_crtc(sc, i, mode->vr_crtc[i]); 1279 for (i = 0; i < 0x14; i ++) 1280 voodoo3_write_attr(sc, i, mode->vr_attr[i]); 1281 for (i = 0; i < 0x09; i ++) 1282 voodoo3_write_gra(sc, i, mode->vr_graph[i]); 1283 } 1284 1285 static void 1286 voodoofb_set_videomode(struct voodoofb_softc *sc, 1287 const struct videomode *vm) 1288 { 1289 uint32_t miscinit0 = 0; 1290 int vidpll, fout; 1291 uint32_t vp, vidproc = VIDPROCDEFAULT; 1292 uint32_t bpp = 1; /* for now */ 1293 uint32_t bytes_per_row = vm->hdisplay * bpp; 1294 1295 sc->bits_per_pixel = bpp << 3; 1296 sc->width = vm->hdisplay; 1297 sc->height = vm->vdisplay; 1298 sc->linebytes = bytes_per_row; 1299 1300 voodoofb_setup_monitor(sc, vm); 1301 vp = voodoo3_read32(sc, VIDPROCCFG); 1302 1303 vidproc &= ~(0x1c0000); /* clear bits 18 to 20, bpp in vidproccfg */ 1304 /* enable bits 18 to 20 to the required bpp */ 1305 vidproc |= ((bpp - 1) << VIDCFG_PIXFMT_SHIFT); 1306 1307 vidpll = voodoofb_calc_pll(vm->dot_clock, &fout, 0); 1308 1309 #ifdef VOODOOFB_DEBUG 1310 printf("old vidproc: %08x\n", vp); 1311 printf("pll: %08x %d\n", vidpll, fout); 1312 #endif 1313 /* bit 10 of vidproccfg, is enabled or disabled as needed */ 1314 switch (bpp) { 1315 case 1: 1316 /* 1317 * bit 10 off for palettized modes only, off means 1318 * palette is used 1319 */ 1320 vidproc &= ~(1 << 10); 1321 break; 1322 #if 0 1323 case 2: 1324 #if __POWERPC__ 1325 miscinit0 = 0xc0000000; 1326 #endif 1327 /* bypass palette for 16bit modes */ 1328 vidproc |= (1 << 10); 1329 break; 1330 case 4: 1331 #if __POWERPC__ 1332 miscinit0 = 0x40000000; 1333 #endif 1334 vidproc |= (1 << 10); /* Same for 32bit modes */ 1335 break; 1336 #endif 1337 default: 1338 printf("We support only 8 bit for now\n"); 1339 return; 1340 } 1341 1342 voodoofb_wait_idle(sc); 1343 1344 voodoo3_write32(sc, MISCINIT1, voodoo3_read32(sc, MISCINIT1) | 0x01); 1345 1346 voodoo3_make_room(sc, 4); 1347 voodoo3_write32(sc, VGAINIT0, 4928); 1348 voodoo3_write32(sc, DACMODE, 0); 1349 voodoo3_write32(sc, VIDDESKSTRIDE, bytes_per_row); 1350 voodoo3_write32(sc, PLLCTRL0, vidpll); 1351 1352 voodoo3_make_room(sc, 5); 1353 voodoo3_write32(sc, VIDSCREENSIZE, sc->width | (sc->height << 12)); 1354 voodoo3_write32(sc, VIDDESKSTART, 1024); 1355 1356 vidproc &= ~VIDCFG_HWCURSOR_ENABLE; 1357 voodoo3_write32(sc, VIDPROCCFG, vidproc); 1358 1359 voodoo3_write32(sc, VGAINIT1, 0); 1360 voodoo3_write32(sc, MISCINIT0, miscinit0); 1361 #ifdef VOODOOFB_DEBUG 1362 printf("vidproc: %08x\n", vidproc); 1363 #endif 1364 voodoo3_make_room(sc, 8); 1365 voodoo3_write32(sc, SRCBASE, 0); 1366 voodoo3_write32(sc, DSTBASE, 0); 1367 voodoo3_write32(sc, COMMANDEXTRA_2D, 0); 1368 voodoo3_write32(sc, CLIP0MIN, 0); 1369 voodoo3_write32(sc, CLIP0MAX, 0x0fff0fff); 1370 voodoo3_write32(sc, CLIP1MIN, 0); 1371 voodoo3_write32(sc, CLIP1MAX, 0x0fff0fff); 1372 voodoo3_write32(sc, SRCXY, 0); 1373 voodoofb_wait_idle(sc); 1374 printf("%s: switched to %dx%d, %d bit\n", sc->sc_dev.dv_xname, 1375 sc->width, sc->height, sc->bits_per_pixel); 1376 } 1377 1378 static void 1379 voodoofb_init(struct voodoofb_softc *sc) 1380 { 1381 /* XXX */ 1382 uint32_t vgainit0 = 0; 1383 uint32_t vidcfg = 0; 1384 1385 #ifdef VOODOOFB_DEBUG 1386 printf("initializing engine..."); 1387 #endif 1388 vgainit0 = voodoo3_read32(sc, VGAINIT0); 1389 #ifdef VOODOOFB_DEBUG 1390 printf("vga: %08x", vgainit0); 1391 #endif 1392 vgainit0 |= 1393 VGAINIT0_8BIT_DAC | 1394 VGAINIT0_EXT_ENABLE | 1395 VGAINIT0_WAKEUP_3C3 | 1396 VGAINIT0_ALT_READBACK | 1397 VGAINIT0_EXTSHIFTOUT; 1398 1399 vidcfg = voodoo3_read32(sc, VIDPROCCFG); 1400 #ifdef VOODOOFB_DEBUG 1401 printf(" vidcfg: %08x\n", vidcfg); 1402 #endif 1403 vidcfg |= 1404 VIDCFG_VIDPROC_ENABLE | 1405 VIDCFG_DESK_ENABLE; 1406 vidcfg &= ~VIDCFG_HWCURSOR_ENABLE; 1407 1408 voodoo3_make_room(sc, 2); 1409 1410 voodoo3_write32(sc, VGAINIT0, vgainit0); 1411 voodoo3_write32(sc, VIDPROCCFG, vidcfg); 1412 1413 voodoo3_make_room(sc, 8); 1414 voodoo3_write32(sc, SRCBASE, 0); 1415 voodoo3_write32(sc, DSTBASE, 0); 1416 voodoo3_write32(sc, COMMANDEXTRA_2D, 0); 1417 voodoo3_write32(sc, CLIP0MIN, 0); 1418 voodoo3_write32(sc, CLIP0MAX, 0x1fff1fff); 1419 voodoo3_write32(sc, CLIP1MIN, 0); 1420 voodoo3_write32(sc, CLIP1MAX, 0x1fff1fff); 1421 voodoo3_write32(sc, SRCXY, 0); 1422 1423 voodoofb_wait_idle(sc); 1424 } 1425