1 /* $NetBSD: voodoofb.c,v 1.15 2008/04/10 19:13:38 cegger Exp $ */ 2 3 /* 4 * Copyright (c) 2005, 2006 Michael Lorenz 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 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 1.15 2008/04/10 19:13:38 cegger 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 #include <sys/kauth.h> 46 47 #include <uvm/uvm_extern.h> 48 49 #if defined(macppc) || defined (sparc64) || defined(ofppc) 50 #define HAVE_OPENFIRMWARE 51 #endif 52 53 /* XXX should be configurable */ 54 #define VOODOOFB_VIDEOMODE 15 55 56 #ifdef HAVE_OPENFIRMWARE 57 #include <dev/ofw/openfirm.h> 58 #include <dev/ofw/ofw_pci.h> 59 #endif 60 61 #include <dev/videomode/videomode.h> 62 63 #include <dev/pci/pcivar.h> 64 #include <dev/pci/pcireg.h> 65 #include <dev/pci/pcidevs.h> 66 #include <dev/pci/pciio.h> 67 #include <dev/pci/voodoofbreg.h> 68 69 #include <dev/wscons/wsdisplayvar.h> 70 #include <dev/wscons/wsconsio.h> 71 #include <dev/wsfont/wsfont.h> 72 #include <dev/rasops/rasops.h> 73 #include <dev/wscons/wsdisplay_vconsvar.h> 74 75 #include "opt_wsemul.h" 76 77 struct voodoofb_softc { 78 struct device sc_dev; 79 pci_chipset_tag_t sc_pc; 80 pcitag_t sc_pcitag; 81 struct pci_attach_args sc_pa; 82 83 bus_space_tag_t sc_memt; 84 bus_space_tag_t sc_iot; 85 bus_space_handle_t sc_memh; 86 87 bus_space_tag_t sc_regt; 88 bus_space_tag_t sc_fbt; 89 bus_space_tag_t sc_ioregt; 90 bus_space_handle_t sc_regh; 91 bus_space_handle_t sc_fbh; 92 bus_space_handle_t sc_ioregh; 93 bus_addr_t sc_regs, sc_fb, sc_ioreg; 94 bus_size_t sc_regsize, sc_fbsize, sc_ioregsize; 95 96 void *sc_ih; 97 98 size_t memsize; 99 int memtype; 100 101 int bits_per_pixel; 102 int width, height, linebytes; 103 104 int sc_mode; 105 uint32_t sc_bg; 106 107 u_char sc_cmap_red[256]; 108 u_char sc_cmap_green[256]; 109 u_char sc_cmap_blue[256]; 110 int sc_dacw; 111 112 struct vcons_data vd; 113 }; 114 115 struct voodoo_regs { 116 uint8_t vr_crtc[31]; 117 uint8_t vr_graph[9]; 118 uint8_t vr_attr[21]; 119 uint8_t vr_seq[5]; 120 }; 121 122 static struct vcons_screen voodoofb_console_screen; 123 124 extern const u_char rasops_cmap[768]; 125 126 static int voodoofb_match(struct device *, struct cfdata *, void *); 127 static void voodoofb_attach(struct device *, struct device *, void *); 128 129 static int voodoofb_drm_print(void *, const char *); 130 static int voodoofb_drm_unmap(struct voodoofb_softc *); 131 static int voodoofb_drm_map(struct voodoofb_softc *); 132 133 CFATTACH_DECL(voodoofb, sizeof(struct voodoofb_softc), voodoofb_match, 134 voodoofb_attach, NULL, NULL); 135 136 static int voodoofb_is_console(struct pci_attach_args *); 137 static void voodoofb_init(struct voodoofb_softc *); 138 139 static void voodoofb_cursor(void *, int, int, int); 140 static void voodoofb_putchar(void *, int, int, u_int, long); 141 static void voodoofb_copycols(void *, int, int, int, int); 142 static void voodoofb_erasecols(void *, int, int, int, long); 143 static void voodoofb_copyrows(void *, int, int, int); 144 static void voodoofb_eraserows(void *, int, int, long); 145 146 #if 0 147 static int voodoofb_allocattr(void *, int, int, int, long *); 148 static void voodoofb_scroll(void *, void *, int); 149 static int voodoofb_load_font(void *, void *, struct wsdisplay_font *); 150 #endif 151 152 static int voodoofb_putcmap(struct voodoofb_softc *, 153 struct wsdisplay_cmap *); 154 static int voodoofb_getcmap(struct voodoofb_softc *, 155 struct wsdisplay_cmap *); 156 static int voodoofb_putpalreg(struct voodoofb_softc *, uint8_t, uint8_t, 157 uint8_t, uint8_t); 158 static void voodoofb_bitblt(struct voodoofb_softc *, int, int, int, int, 159 int, int); 160 static void voodoofb_rectfill(struct voodoofb_softc *, int, int, int, int, 161 int); 162 static void voodoofb_rectinvert(struct voodoofb_softc *, int, int, int, 163 int); 164 static void voodoofb_setup_mono(struct voodoofb_softc *, int, int, int, 165 int, uint32_t, uint32_t); 166 static void voodoofb_feed_line(struct voodoofb_softc *, int, uint8_t *); 167 168 #ifdef VOODOOFB_DEBUG 169 static void voodoofb_showpal(struct voodoofb_softc *); 170 #endif 171 172 static void voodoofb_wait_idle(struct voodoofb_softc *); 173 174 #ifdef VOODOOFB_ENABLE_INTR 175 static int voodoofb_intr(void *); 176 #endif 177 178 static void voodoofb_set_videomode(struct voodoofb_softc *, 179 const struct videomode *); 180 181 struct wsscreen_descr voodoofb_defaultscreen = { 182 "default", 183 0, 0, 184 NULL, 185 8, 16, 186 WSSCREEN_WSCOLORS | WSSCREEN_HILIT, 187 NULL, 188 }; 189 190 const struct wsscreen_descr *_voodoofb_scrlist[] = { 191 &voodoofb_defaultscreen, 192 /* XXX other formats, graphics screen? */ 193 }; 194 195 struct wsscreen_list voodoofb_screenlist = { 196 sizeof(_voodoofb_scrlist) / sizeof(struct wsscreen_descr *), _voodoofb_scrlist 197 }; 198 199 static int voodoofb_ioctl(void *, void *, u_long, void *, int, 200 struct lwp *); 201 static paddr_t voodoofb_mmap(void *, void *, off_t, int); 202 203 static void voodoofb_clearscreen(struct voodoofb_softc *); 204 static void voodoofb_init_screen(void *, struct vcons_screen *, int, 205 long *); 206 207 208 struct wsdisplay_accessops voodoofb_accessops = { 209 voodoofb_ioctl, 210 voodoofb_mmap, 211 NULL, 212 NULL, 213 NULL, 214 NULL, /* load_font */ 215 NULL, /* polls */ 216 NULL, /* scroll */ 217 }; 218 219 /* 220 * Inline functions for getting access to register aperture. 221 */ 222 static inline void 223 voodoo3_write32(struct voodoofb_softc *sc, uint32_t reg, uint32_t val) 224 { 225 bus_space_write_4(sc->sc_regt, sc->sc_regh, reg, val); 226 } 227 228 static inline uint32_t 229 voodoo3_read32(struct voodoofb_softc *sc, uint32_t reg) 230 { 231 return bus_space_read_4(sc->sc_regt, sc->sc_regh, reg); 232 } 233 234 static inline void 235 voodoo3_write_crtc(struct voodoofb_softc *sc, uint8_t reg, uint8_t val) 236 { 237 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, CRTC_INDEX - 0x300, reg); 238 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, CRTC_DATA - 0x300, val); 239 } 240 241 static inline void 242 voodoo3_write_seq(struct voodoofb_softc *sc, uint8_t reg, uint8_t val) 243 { 244 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, SEQ_INDEX - 0x300, reg); 245 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, SEQ_DATA - 0x300, val); 246 } 247 248 static inline void 249 voodoo3_write_gra(struct voodoofb_softc *sc, uint8_t reg, uint8_t val) 250 { 251 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, GRA_INDEX - 0x300, reg); 252 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, GRA_DATA - 0x300, val); 253 } 254 255 static inline void 256 voodoo3_write_attr(struct voodoofb_softc *sc, uint8_t reg, uint8_t val) 257 { 258 volatile uint8_t junk; 259 uint8_t index; 260 261 junk = bus_space_read_1(sc->sc_ioregt, sc->sc_ioregh, IS1_R - 0x300); 262 index = bus_space_read_1(sc->sc_ioregt, sc->sc_ioregh, ATT_IW - 0x300); 263 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, ATT_IW - 0x300, reg); 264 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, ATT_IW - 0x300, val); 265 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, ATT_IW - 0x300, index); 266 } 267 268 static inline void 269 vga_outb(struct voodoofb_softc *sc, uint32_t reg, uint8_t val) 270 { 271 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, reg - 0x300, val); 272 } 273 274 /* wait until there's room for len bytes in the FIFO */ 275 static inline void 276 voodoo3_make_room(struct voodoofb_softc *sc, int len) 277 { 278 while ((voodoo3_read32(sc, STATUS) & 0x1f) < len); 279 } 280 281 static void 282 voodoofb_wait_idle(struct voodoofb_softc *sc) 283 { 284 int i = 0; 285 286 voodoo3_make_room(sc, 1); 287 voodoo3_write32(sc, COMMAND_3D, COMMAND_3D_NOP); 288 289 while (1) { 290 i = (voodoo3_read32(sc, STATUS) & STATUS_BUSY) ? 0 : i + 1; 291 if(i == 3) break; 292 } 293 } 294 295 static int 296 voodoofb_match(struct device *parent, struct cfdata *match, void *aux) 297 { 298 struct pci_attach_args *pa = (struct pci_attach_args *)aux; 299 300 if (PCI_CLASS(pa->pa_class) != PCI_CLASS_DISPLAY || 301 PCI_SUBCLASS(pa->pa_class) != PCI_SUBCLASS_DISPLAY_VGA) 302 return 0; 303 if ((PCI_VENDOR(pa->pa_id)==PCI_VENDOR_3DFX) && 304 (PCI_PRODUCT(pa->pa_id)>=PCI_PRODUCT_3DFX_VOODOO3)) 305 return 100; 306 return 0; 307 } 308 309 static void 310 voodoofb_attach(struct device *parent, struct device *self, void *aux) 311 { 312 struct voodoofb_softc *sc = (void *)self; 313 struct pci_attach_args *pa = aux; 314 char devinfo[256]; 315 struct wsemuldisplaydev_attach_args aa; 316 struct rasops_info *ri; 317 #ifdef VOODOOFB_ENABLE_INTR 318 pci_intr_handle_t ih; 319 const char *intrstr; 320 #endif 321 ulong defattr; 322 int console, width, height, i, j; 323 #ifdef HAVE_OPENFIRMWARE 324 int linebytes, depth, node; 325 #endif 326 uint32_t bg, fg, ul; 327 328 sc->sc_mode = WSDISPLAYIO_MODE_EMUL; 329 #ifdef HAVE_OPENFIRMWARE 330 node = pcidev_to_ofdev(pa->pa_pc, pa->pa_tag); 331 #endif 332 sc->sc_pc = pa->pa_pc; 333 sc->sc_pcitag = pa->pa_tag; 334 sc->sc_dacw = -1; 335 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo)); 336 printf(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class)); 337 338 sc->sc_memt = pa->pa_memt; 339 sc->sc_iot = pa->pa_iot; 340 sc->sc_pa = *pa; 341 342 /* the framebuffer */ 343 if (pci_mapreg_map(pa, 0x14, PCI_MAPREG_TYPE_MEM, 344 BUS_SPACE_MAP_CACHEABLE | BUS_SPACE_MAP_PREFETCHABLE | 345 BUS_SPACE_MAP_LINEAR, 346 &sc->sc_fbt, &sc->sc_fbh, &sc->sc_fb, &sc->sc_fbsize)) { 347 aprint_error_dev(&sc->sc_dev, "failed to map the frame buffer.\n"); 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 aprint_error_dev(&sc->sc_dev, "failed to map memory-mapped registers.\n"); 354 } 355 356 /* IO-mapped registers */ 357 if (pci_mapreg_map(pa, 0x18, PCI_MAPREG_TYPE_IO, 0, 358 &sc->sc_ioregt, &sc->sc_ioregh, &sc->sc_ioreg, 359 &sc->sc_ioregsize)) { 360 aprint_error_dev(&sc->sc_dev, "failed to map IO-mapped registers.\n"); 361 } 362 voodoofb_init(sc); 363 364 /* we should read these from the chip instead of depending on OF */ 365 width = height = -1; 366 367 #ifdef HAVE_OPENFIRMWARE 368 if (OF_getprop(node, "width", &width, 4) != 4) 369 OF_interpret("screen-width", 1, 1, &width); 370 if (OF_getprop(node, "height", &height, 4) != 4) 371 OF_interpret("screen-height", 1, 1, &height); 372 if (OF_getprop(node, "linebytes", &linebytes, 4) != 4) 373 linebytes = width; /* XXX */ 374 if (OF_getprop(node, "depth", &depth, 4) != 4) 375 depth = 8; /* XXX */ 376 377 if (width == -1 || height == -1) 378 return; 379 380 sc->width = width; 381 sc->height = height; 382 sc->bits_per_pixel = depth; 383 sc->linebytes = linebytes; 384 printf("%s: initial resolution %dx%d, %d bit\n", device_xname(&sc->sc_dev), 385 sc->width, sc->height, sc->bits_per_pixel); 386 #endif 387 388 /* XXX this should at least be configurable via kernel config */ 389 voodoofb_set_videomode(sc, &videomode_list[VOODOOFB_VIDEOMODE]); 390 391 vcons_init(&sc->vd, sc, &voodoofb_defaultscreen, &voodoofb_accessops); 392 sc->vd.init_screen = voodoofb_init_screen; 393 394 console = voodoofb_is_console(pa); 395 396 ri = &voodoofb_console_screen.scr_ri; 397 if (console) { 398 vcons_init_screen(&sc->vd, &voodoofb_console_screen, 1, 399 &defattr); 400 voodoofb_console_screen.scr_flags |= VCONS_SCREEN_IS_STATIC; 401 402 voodoofb_defaultscreen.textops = &ri->ri_ops; 403 voodoofb_defaultscreen.capabilities = ri->ri_caps; 404 voodoofb_defaultscreen.nrows = ri->ri_rows; 405 voodoofb_defaultscreen.ncols = ri->ri_cols; 406 wsdisplay_cnattach(&voodoofb_defaultscreen, ri, 0, 0, defattr); 407 } else { 408 /* 409 * since we're not the console we can postpone the rest 410 * until someone actually allocates a screen for us 411 */ 412 voodoofb_set_videomode(sc, &videomode_list[0]); 413 } 414 415 printf("%s: %d MB aperture at 0x%08x, %d MB registers at 0x%08x\n", 416 device_xname(&sc->sc_dev), (u_int)(sc->sc_fbsize >> 20), 417 (u_int)sc->sc_fb, (u_int)(sc->sc_regsize >> 20), 418 (u_int)sc->sc_regs); 419 #ifdef VOODOOFB_DEBUG 420 printf("fb: %08lx\n", (ulong)ri->ri_bits); 421 #endif 422 423 j = 0; 424 for (i = 0; i < 256; i++) { 425 voodoofb_putpalreg(sc, i, rasops_cmap[j], rasops_cmap[j + 1], 426 rasops_cmap[j + 2]); 427 j += 3; 428 } 429 430 #ifdef VOODOOFB_ENABLE_INTR 431 /* Interrupt. We don't use it for anything yet */ 432 if (pci_intr_map(pa, &ih)) { 433 aprint_error_dev(&sc->sc_dev, "failed to map interrupt\n"); 434 return; 435 } 436 437 intrstr = pci_intr_string(sc->sc_pc, ih); 438 sc->sc_ih = pci_intr_establish(sc->sc_pc, ih, IPL_NET, voodoofb_intr, 439 sc); 440 if (sc->sc_ih == NULL) { 441 aprint_error_dev(&sc->sc_dev, "failed to establish interrupt"); 442 if (intrstr != NULL) 443 printf(" at %s", intrstr); 444 printf("\n"); 445 return; 446 } 447 printf("%s: interrupting at %s\n", device_xname(&sc->sc_dev), intrstr); 448 #endif 449 450 rasops_unpack_attr(defattr, &fg, &bg, &ul); 451 sc->sc_bg = ri->ri_devcmap[bg]; 452 voodoofb_clearscreen(sc); 453 454 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("direct rendering for %s", pnp); 468 469 return UNSUPP; 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, &videomode_list[VOODOOFB_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 int 597 voodoofb_is_console(struct pci_attach_args *pa) 598 { 599 600 #ifdef HAVE_OPENFIRMWARE 601 /* check if we're the /chosen console device */ 602 int chosen, stdout, node, us; 603 604 us=pcidev_to_ofdev(pa->pa_pc, pa->pa_tag); 605 chosen = OF_finddevice("/chosen"); 606 OF_getprop(chosen, "stdout", &stdout, 4); 607 node = OF_instance_to_package(stdout); 608 return(us == node); 609 #else 610 /* XXX how do we know we're console on i386? */ 611 return 1; 612 #endif 613 } 614 615 static void 616 voodoofb_clearscreen(struct voodoofb_softc *sc) 617 { 618 voodoofb_rectfill(sc, 0, 0, sc->width, sc->height, sc->sc_bg); 619 } 620 621 /* 622 * wsdisplay_emulops 623 */ 624 625 static void 626 voodoofb_cursor(void *cookie, int on, int row, int col) 627 { 628 struct rasops_info *ri = cookie; 629 struct vcons_screen *scr = ri->ri_hw; 630 struct voodoofb_softc *sc = scr->scr_cookie; 631 int x, y, wi, he; 632 633 wi = ri->ri_font->fontwidth; 634 he = ri->ri_font->fontheight; 635 636 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 637 x = ri->ri_ccol * wi + ri->ri_xorigin; 638 y = ri->ri_crow * he + ri->ri_yorigin; 639 if (ri->ri_flg & RI_CURSOR) { 640 voodoofb_rectinvert(sc, x, y, wi, he); 641 ri->ri_flg &= ~RI_CURSOR; 642 } 643 ri->ri_crow = row; 644 ri->ri_ccol = col; 645 if (on) 646 { 647 x = ri->ri_ccol * wi + ri->ri_xorigin; 648 y = ri->ri_crow * he + ri->ri_yorigin; 649 voodoofb_rectinvert(sc, x, y, wi, he); 650 ri->ri_flg |= RI_CURSOR; 651 } 652 } else { 653 ri->ri_flg &= ~RI_CURSOR; 654 ri->ri_crow = row; 655 ri->ri_ccol = col; 656 } 657 } 658 659 #if 0 660 int 661 voodoofb_mapchar(void *cookie, int uni, u_int *index) 662 { 663 return 0; 664 } 665 #endif 666 667 static void 668 voodoofb_putchar(void *cookie, int row, int col, u_int c, long attr) 669 { 670 struct rasops_info *ri = cookie; 671 struct vcons_screen *scr = ri->ri_hw; 672 struct voodoofb_softc *sc = scr->scr_cookie; 673 674 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 675 uint8_t *data; 676 int fg, bg, uc, i; 677 int x, y, wi, he; 678 679 wi = ri->ri_font->fontwidth; 680 he = ri->ri_font->fontheight; 681 682 if (!CHAR_IN_FONT(c, ri->ri_font)) 683 return; 684 bg = (u_char)ri->ri_devcmap[(attr >> 16) & 0xf]; 685 fg = (u_char)ri->ri_devcmap[(attr >> 24) & 0xf]; 686 x = ri->ri_xorigin + col * wi; 687 y = ri->ri_yorigin + row * he; 688 if (c == 0x20) { 689 voodoofb_rectfill(sc, x, y, wi, he, bg); 690 } else { 691 uc = c-ri->ri_font->firstchar; 692 data = (uint8_t *)ri->ri_font->data + uc * 693 ri->ri_fontscale; 694 voodoofb_setup_mono(sc, x, y, wi, he, fg, bg); 695 for (i = 0; i < he; i++) { 696 voodoofb_feed_line(sc, 697 ri->ri_font->stride, data); 698 data += ri->ri_font->stride; 699 } 700 } 701 } 702 } 703 704 static void 705 voodoofb_copycols(void *cookie, int row, int srccol, int dstcol, int ncols) 706 { 707 struct rasops_info *ri = cookie; 708 struct vcons_screen *scr = ri->ri_hw; 709 struct voodoofb_softc *sc = scr->scr_cookie; 710 int32_t xs, xd, y, width, height; 711 712 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 713 xs = ri->ri_xorigin + ri->ri_font->fontwidth * srccol; 714 xd = ri->ri_xorigin + ri->ri_font->fontwidth * dstcol; 715 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 716 width = ri->ri_font->fontwidth * ncols; 717 height = ri->ri_font->fontheight; 718 voodoofb_bitblt(sc, xs, y, xd, y, width, height); 719 } 720 } 721 722 static void 723 voodoofb_erasecols(void *cookie, int row, int startcol, int ncols, 724 long fillattr) 725 { 726 struct rasops_info *ri = cookie; 727 struct vcons_screen *scr = ri->ri_hw; 728 struct voodoofb_softc *sc = scr->scr_cookie; 729 int32_t x, y, width, height, fg, bg, ul; 730 731 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 732 x = ri->ri_xorigin + ri->ri_font->fontwidth * startcol; 733 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 734 width = ri->ri_font->fontwidth * ncols; 735 height = ri->ri_font->fontheight; 736 rasops_unpack_attr(fillattr, &fg, &bg, &ul); 737 738 voodoofb_rectfill(sc, x, y, width, height, ri->ri_devcmap[bg]); 739 } 740 } 741 742 static void 743 voodoofb_copyrows(void *cookie, int srcrow, int dstrow, int nrows) 744 { 745 struct rasops_info *ri = cookie; 746 struct vcons_screen *scr = ri->ri_hw; 747 struct voodoofb_softc *sc = scr->scr_cookie; 748 int32_t x, ys, yd, width, height; 749 750 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 751 x = ri->ri_xorigin; 752 ys = ri->ri_yorigin + ri->ri_font->fontheight * srcrow; 753 yd = ri->ri_yorigin + ri->ri_font->fontheight * dstrow; 754 width = ri->ri_emuwidth; 755 height = ri->ri_font->fontheight * nrows; 756 voodoofb_bitblt(sc, x, ys, x, yd, width, height); 757 } 758 } 759 760 static void 761 voodoofb_eraserows(void *cookie, int row, int nrows, long fillattr) 762 { 763 struct rasops_info *ri = cookie; 764 struct vcons_screen *scr = ri->ri_hw; 765 struct voodoofb_softc *sc = scr->scr_cookie; 766 int32_t x, y, width, height, fg, bg, ul; 767 768 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 769 rasops_unpack_attr(fillattr, &fg, &bg, &ul); 770 if ((row == 0) && (nrows == ri->ri_rows)) { 771 /* clear the whole screen */ 772 voodoofb_rectfill(sc, 0, 0, ri->ri_width, 773 ri->ri_height, ri->ri_devcmap[bg]); 774 } else { 775 x = ri->ri_xorigin; 776 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 777 width = ri->ri_emuwidth; 778 height = ri->ri_font->fontheight * nrows; 779 voodoofb_rectfill(sc, x, y, width, height, 780 ri->ri_devcmap[bg]); 781 } 782 } 783 } 784 785 static void 786 voodoofb_bitblt(struct voodoofb_softc *sc, int xs, int ys, int xd, int yd, int width, int height) 787 { 788 uint32_t fmt, blitcmd; 789 790 fmt = sc->linebytes | ((sc->bits_per_pixel + 791 ((sc->bits_per_pixel == 8) ? 0 : 8)) << 13); 792 blitcmd = COMMAND_2D_S2S_BITBLT | (ROP_COPY << 24); 793 794 if (xs <= xd) { 795 blitcmd |= BIT(14); 796 xs += (width - 1); 797 xd += (width - 1); 798 } 799 if (ys <= yd) { 800 blitcmd |= BIT(15); 801 ys += (height - 1); 802 yd += (height - 1); 803 } 804 voodoo3_make_room(sc, 6); 805 806 voodoo3_write32(sc, SRCFORMAT, fmt); 807 voodoo3_write32(sc, DSTFORMAT, fmt); 808 voodoo3_write32(sc, DSTSIZE, width | (height << 16)); 809 voodoo3_write32(sc, DSTXY, xd | (yd << 16)); 810 voodoo3_write32(sc, SRCXY, xs | (ys << 16)); 811 voodoo3_write32(sc, COMMAND_2D, blitcmd | SST_2D_GO); 812 } 813 814 static void 815 voodoofb_rectfill(struct voodoofb_softc *sc, int x, int y, int width, 816 int height, int colour) 817 { 818 uint32_t fmt, col; 819 820 col = (colour << 24) | (colour << 16) | (colour << 8) | colour; 821 fmt = sc->linebytes | ((sc->bits_per_pixel + 822 ((sc->bits_per_pixel == 8) ? 0 : 8)) << 13); 823 824 voodoo3_make_room(sc, 6); 825 voodoo3_write32(sc, DSTFORMAT, fmt); 826 voodoo3_write32(sc, COLORFORE, colour); 827 voodoo3_write32(sc, COLORBACK, colour); 828 voodoo3_write32(sc, COMMAND_2D, COMMAND_2D_FILLRECT | (ROP_COPY << 24)); 829 voodoo3_write32(sc, DSTSIZE, width | (height << 16)); 830 voodoo3_write32(sc, LAUNCH_2D, x | (y << 16)); 831 } 832 833 static void 834 voodoofb_rectinvert(struct voodoofb_softc *sc, int x, int y, int width, 835 int height) 836 { 837 uint32_t fmt; 838 839 fmt = sc->linebytes | ((sc->bits_per_pixel + 840 ((sc->bits_per_pixel == 8) ? 0 : 8)) << 13); 841 842 voodoo3_make_room(sc, 6); 843 voodoo3_write32(sc, DSTFORMAT, fmt); 844 voodoo3_write32(sc, COMMAND_2D, COMMAND_2D_FILLRECT | 845 (ROP_INVERT << 24)); 846 voodoo3_write32(sc, DSTSIZE, width | (height << 16)); 847 voodoo3_write32(sc, DSTXY, x | (y << 16)); 848 voodoo3_write32(sc, LAUNCH_2D, x | (y << 16)); 849 } 850 851 static void 852 voodoofb_setup_mono(struct voodoofb_softc *sc, int xd, int yd, int width, int height, uint32_t fg, 853 uint32_t bg) 854 { 855 uint32_t dfmt, sfmt = sc->linebytes; 856 857 dfmt = sc->linebytes | ((sc->bits_per_pixel + 858 ((sc->bits_per_pixel == 8) ? 0 : 8)) << 13); 859 860 voodoo3_make_room(sc, 9); 861 voodoo3_write32(sc, SRCFORMAT, sfmt); 862 voodoo3_write32(sc, DSTFORMAT, dfmt); 863 voodoo3_write32(sc, COLORFORE, fg); 864 voodoo3_write32(sc, COLORBACK, bg); 865 voodoo3_write32(sc, DSTSIZE, width | (height << 16)); 866 voodoo3_write32(sc, DSTXY, xd | (yd << 16)); 867 voodoo3_write32(sc, SRCXY, 0); 868 voodoo3_write32(sc, COMMAND_2D, COMMAND_2D_H2S_BITBLT | 869 (ROP_COPY << 24) | SST_2D_GO); 870 871 /* now feed the data into the chip */ 872 } 873 874 static void 875 voodoofb_feed_line(struct voodoofb_softc *sc, int count, uint8_t *data) 876 { 877 int i; 878 uint32_t latch = 0, bork; 879 int shift = 0; 880 881 voodoo3_make_room(sc, count); 882 for (i = 0; i < count; i++) { 883 bork = data[i]; 884 latch |= (bork << shift); 885 if (shift == 24) { 886 voodoo3_write32(sc, LAUNCH_2D, latch); 887 latch = 0; 888 shift = 0; 889 } else 890 shift += 8; 891 } 892 if (shift != 24) 893 voodoo3_write32(sc, LAUNCH_2D, latch); 894 } 895 896 #ifdef VOODOOFB_DEBUG 897 static void 898 voodoofb_showpal(struct voodoofb_softc *sc) 899 { 900 int i, x = 0; 901 902 for (i = 0; i < 16; i++) { 903 voodoofb_rectfill(sc, x, 0, 64, 64, i); 904 x += 64; 905 } 906 } 907 #endif 908 909 #if 0 910 static int 911 voodoofb_allocattr(void *cookie, int fg, int bg, int flags, long *attrp) 912 { 913 914 return 0; 915 } 916 #endif 917 918 /* 919 * wsdisplay_accessops 920 */ 921 922 static int 923 voodoofb_ioctl(void *v, void *vs, u_long cmd, void *data, int flag, 924 struct lwp *l) 925 { 926 struct vcons_data *vd = v; 927 struct voodoofb_softc *sc = vd->cookie; 928 struct wsdisplay_fbinfo *wdf; 929 struct vcons_screen *ms = vd->active; 930 931 switch (cmd) { 932 case WSDISPLAYIO_GTYPE: 933 *(u_int *)data = WSDISPLAY_TYPE_PCIMISC; 934 return 0; 935 936 case WSDISPLAYIO_GINFO: 937 wdf = (void *)data; 938 wdf->height = ms->scr_ri.ri_height; 939 wdf->width = ms->scr_ri.ri_width; 940 wdf->depth = ms->scr_ri.ri_depth; 941 wdf->cmsize = 256; 942 return 0; 943 944 case WSDISPLAYIO_GETCMAP: 945 return voodoofb_getcmap(sc, 946 (struct wsdisplay_cmap *)data); 947 948 case WSDISPLAYIO_PUTCMAP: 949 return voodoofb_putcmap(sc, 950 (struct wsdisplay_cmap *)data); 951 952 /* PCI config read/write passthrough. */ 953 case PCI_IOC_CFGREAD: 954 case PCI_IOC_CFGWRITE: 955 return (pci_devioctl(sc->sc_pc, sc->sc_pcitag, 956 cmd, data, flag, l)); 957 958 case WSDISPLAYIO_SMODE: 959 { 960 int new_mode = *(int*)data; 961 if (new_mode != sc->sc_mode) 962 { 963 sc->sc_mode = new_mode; 964 if(new_mode == WSDISPLAYIO_MODE_EMUL) 965 { 966 voodoofb_drm_map(sc); 967 int i; 968 969 /* restore the palette */ 970 for (i = 0; i < 256; i++) { 971 voodoofb_putpalreg(sc, 972 i, 973 sc->sc_cmap_red[i], 974 sc->sc_cmap_green[i], 975 sc->sc_cmap_blue[i]); 976 } 977 vcons_redraw_screen(ms); 978 } else 979 voodoofb_drm_unmap(sc); 980 } 981 } 982 return 0; 983 } 984 return EPASSTHROUGH; 985 } 986 987 static paddr_t 988 voodoofb_mmap(void *v, void *vs, off_t offset, int prot) 989 { 990 struct vcons_data *vd = v; 991 struct voodoofb_softc *sc = vd->cookie; 992 paddr_t pa; 993 994 /* 'regular' framebuffer mmap()ing */ 995 if (offset < sc->sc_fbsize) { 996 pa = bus_space_mmap(sc->sc_fbt, offset, 0, prot, 997 BUS_SPACE_MAP_LINEAR); 998 return pa; 999 } 1000 1001 /* 1002 * restrict all other mappings to processes with superuser privileges 1003 * or the kernel itself 1004 */ 1005 if (curlwp != NULL) { 1006 if (kauth_authorize_generic(kauth_cred_get(), 1007 KAUTH_GENERIC_ISSUSER, NULL) != 0) { 1008 aprint_error_dev(&sc->sc_dev, "mmap() rejected.\n"); 1009 return -1; 1010 } 1011 } 1012 1013 if ((offset >= sc->sc_fb) && (offset < (sc->sc_fb + sc->sc_fbsize))) { 1014 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 1015 BUS_SPACE_MAP_LINEAR); 1016 return pa; 1017 } 1018 1019 if ((offset >= sc->sc_regs) && (offset < (sc->sc_regs + 1020 sc->sc_regsize))) { 1021 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 1022 BUS_SPACE_MAP_LINEAR); 1023 return pa; 1024 } 1025 1026 #ifdef PCI_MAGIC_IO_RANGE 1027 /* allow mapping of IO space */ 1028 if ((offset >= PCI_MAGIC_IO_RANGE) &&\ 1029 (offset < PCI_MAGIC_IO_RANGE + 0x10000)) { 1030 pa = bus_space_mmap(sc->sc_iot, offset - PCI_MAGIC_IO_RANGE, 1031 0, prot, BUS_SPACE_MAP_LINEAR); 1032 return pa; 1033 } 1034 #endif 1035 1036 #ifdef OFB_ALLOW_OTHERS 1037 if (offset >= 0x80000000) { 1038 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 1039 BUS_SPACE_MAP_LINEAR); 1040 return pa; 1041 } 1042 #endif 1043 return -1; 1044 } 1045 1046 static void 1047 voodoofb_init_screen(void *cookie, struct vcons_screen *scr, 1048 int existing, long *defattr) 1049 { 1050 struct voodoofb_softc *sc = cookie; 1051 struct rasops_info *ri = &scr->scr_ri; 1052 1053 ri->ri_depth = sc->bits_per_pixel; 1054 ri->ri_width = sc->width; 1055 ri->ri_height = sc->height; 1056 ri->ri_stride = sc->width; 1057 ri->ri_flg = RI_CENTER | RI_FULLCLEAR; 1058 1059 ri->ri_bits = bus_space_vaddr(sc->sc_fbt, sc->sc_fbh); 1060 1061 #ifdef VOODOOFB_DEBUG 1062 printf("addr: %08lx\n", (ulong)ri->ri_bits); 1063 #endif 1064 if (existing) { 1065 ri->ri_flg |= RI_CLEAR; 1066 } 1067 1068 rasops_init(ri, sc->height/8, sc->width/8); 1069 ri->ri_caps = WSSCREEN_WSCOLORS; 1070 1071 rasops_reconfig(ri, sc->height / ri->ri_font->fontheight, 1072 sc->width / ri->ri_font->fontwidth); 1073 1074 ri->ri_hw = scr; 1075 ri->ri_ops.copyrows = voodoofb_copyrows; 1076 ri->ri_ops.copycols = voodoofb_copycols; 1077 ri->ri_ops.eraserows = voodoofb_eraserows; 1078 ri->ri_ops.erasecols = voodoofb_erasecols; 1079 ri->ri_ops.cursor = voodoofb_cursor; 1080 ri->ri_ops.putchar = voodoofb_putchar; 1081 } 1082 1083 #if 0 1084 int 1085 voodoofb_load_font(void *v, void *cookie, struct wsdisplay_font *data) 1086 { 1087 1088 return 0; 1089 } 1090 #endif 1091 1092 #ifdef VOODOOFB_ENABLE_INTR 1093 static int 1094 voodoofb_intr(void *arg) 1095 { 1096 struct voodoofb_softc *sc = arg; 1097 1098 voodoo3_write32(sc, V3_STATUS, 0); /* clear interrupts */ 1099 return 1; 1100 } 1101 #endif 1102 1103 /* video mode stuff */ 1104 1105 #define REFFREQ 14318 /* .18 */ 1106 1107 #define ABS(a) ((a < 0) ? -a : a) 1108 1109 static int 1110 voodoofb_calc_pll(int freq, int *f_out, int isBanshee) 1111 { 1112 int m, n, k, best_m, best_n, best_k, f_cur, best_error; 1113 int minm, maxm; 1114 1115 best_error = freq; 1116 best_n = best_m = best_k = 0; 1117 1118 if (isBanshee) { 1119 minm = 24; 1120 maxm = 24; 1121 } else { 1122 minm = 1; 1123 maxm = 57; 1124 /* This used to be 64, alas it seems the last 8 (funny that ?) 1125 * values cause jittering at lower resolutions. I've not done 1126 * any calculations to what the adjustment affects clock ranges, 1127 * but I can still run at 1600x1200@75Hz */ 1128 } 1129 for (n = 1; n < 256; n++) { 1130 f_cur = REFFREQ * (n + 2); 1131 if (f_cur < freq) { 1132 f_cur = f_cur / 3; 1133 if (freq - f_cur < best_error) { 1134 best_error = freq - f_cur; 1135 best_n = n; 1136 best_m = 1; 1137 best_k = 0; 1138 continue; 1139 } 1140 } 1141 for (m = minm; m < maxm; m++) { 1142 for (k = 0; k < 4; k++) { 1143 f_cur = REFFREQ * (n + 2) / (m + 2) / (1 << k); 1144 if (ABS(f_cur - freq) < best_error) { 1145 best_error = ABS(f_cur - freq); 1146 best_n = n; 1147 best_m = m; 1148 best_k = k; 1149 } 1150 } 1151 } 1152 } 1153 n = best_n; 1154 m = best_m; 1155 k = best_k; 1156 *f_out = REFFREQ * (n + 2) / (m + 2) / (1 << k); 1157 return ( n << 8) | (m << 2) | k; 1158 } 1159 1160 static void 1161 voodoofb_setup_monitor(struct voodoofb_softc *sc, const struct videomode *vm) 1162 { 1163 struct voodoo_regs mod; 1164 struct voodoo_regs *mode; 1165 uint32_t horizontal_display_end, horizontal_sync_start, 1166 horizontal_sync_end, horizontal_total, 1167 horizontal_blanking_start, horizontal_blanking_end; 1168 1169 uint32_t vertical_display_enable_end, vertical_sync_start, 1170 vertical_sync_end, vertical_total, vertical_blanking_start, 1171 vertical_blanking_end; 1172 1173 uint32_t wd; // CRTC offset 1174 1175 int i; 1176 1177 uint8_t misc; 1178 1179 memset(&mod, 0, sizeof(mode)); 1180 1181 mode = &mod; 1182 1183 wd = (vm->hdisplay >> 3) - 1; 1184 horizontal_display_end = (vm->hdisplay >> 3) - 1; 1185 horizontal_sync_start = (vm->hsync_start >> 3) - 1; 1186 horizontal_sync_end = (vm->hsync_end >> 3) - 1; 1187 horizontal_total = (vm->htotal >> 3) - 1; 1188 horizontal_blanking_start = horizontal_display_end; 1189 horizontal_blanking_end = horizontal_total; 1190 1191 vertical_display_enable_end = vm->vdisplay - 1; 1192 vertical_sync_start = vm->vsync_start; // - 1; 1193 vertical_sync_end = vm->vsync_end; // - 1; 1194 vertical_total = vm->vtotal - 2; 1195 vertical_blanking_start = vertical_display_enable_end; 1196 vertical_blanking_end = vertical_total; 1197 1198 misc = 0x0f | 1199 (vm->hdisplay < 400 ? 0xa0 : 1200 vm->hdisplay < 480 ? 0x60 : 1201 vm->hdisplay < 768 ? 0xe0 : 0x20); 1202 1203 mode->vr_seq[0] = 3; 1204 mode->vr_seq[1] = 1; 1205 mode->vr_seq[2] = 8; 1206 mode->vr_seq[3] = 0; 1207 mode->vr_seq[4] = 6; 1208 1209 /* crtc regs start */ 1210 mode->vr_crtc[0] = horizontal_total - 4; 1211 mode->vr_crtc[1] = horizontal_display_end; 1212 mode->vr_crtc[2] = horizontal_blanking_start; 1213 mode->vr_crtc[3] = 0x80 | (horizontal_blanking_end & 0x1f); 1214 mode->vr_crtc[4] = horizontal_sync_start; 1215 1216 mode->vr_crtc[5] = ((horizontal_blanking_end & 0x20) << 2) | 1217 (horizontal_sync_end & 0x1f); 1218 mode->vr_crtc[6] = vertical_total; 1219 mode->vr_crtc[7] = ((vertical_sync_start & 0x200) >> 2) | 1220 ((vertical_display_enable_end & 0x200) >> 3) | 1221 ((vertical_total & 0x200) >> 4) | 1222 0x10 | 1223 ((vertical_blanking_start & 0x100) >> 5) | 1224 ((vertical_sync_start & 0x100) >> 6) | 1225 ((vertical_display_enable_end & 0x100) >> 7) | 1226 ((vertical_total & 0x100) >> 8); 1227 1228 mode->vr_crtc[8] = 0; 1229 mode->vr_crtc[9] = 0x40 | 1230 ((vertical_blanking_start & 0x200) >> 4); 1231 1232 mode->vr_crtc[10] = 0; 1233 mode->vr_crtc[11] = 0; 1234 mode->vr_crtc[12] = 0; 1235 mode->vr_crtc[13] = 0; 1236 mode->vr_crtc[14] = 0; 1237 mode->vr_crtc[15] = 0; 1238 1239 mode->vr_crtc[16] = vertical_sync_start; 1240 mode->vr_crtc[17] = (vertical_sync_end & 0x0f) | 0x20; 1241 mode->vr_crtc[18] = vertical_display_enable_end; 1242 mode->vr_crtc[19] = wd; // CRTC offset 1243 mode->vr_crtc[20] = 0; 1244 mode->vr_crtc[21] = vertical_blanking_start; 1245 mode->vr_crtc[22] = vertical_blanking_end + 1; 1246 mode->vr_crtc[23] = 128; 1247 mode->vr_crtc[24] = 255; 1248 1249 /* attr regs start */ 1250 mode->vr_attr[0] = 0; 1251 mode->vr_attr[1] = 0; 1252 mode->vr_attr[2] = 0; 1253 mode->vr_attr[3] = 0; 1254 mode->vr_attr[4] = 0; 1255 mode->vr_attr[5] = 0; 1256 mode->vr_attr[6] = 0; 1257 mode->vr_attr[7] = 0; 1258 mode->vr_attr[8] = 0; 1259 mode->vr_attr[9] = 0; 1260 mode->vr_attr[10] = 0; 1261 mode->vr_attr[11] = 0; 1262 mode->vr_attr[12] = 0; 1263 mode->vr_attr[13] = 0; 1264 mode->vr_attr[14] = 0; 1265 mode->vr_attr[15] = 0; 1266 mode->vr_attr[16] = 1; 1267 mode->vr_attr[17] = 0; 1268 mode->vr_attr[18] = 15; 1269 mode->vr_attr[19] = 0; 1270 /* attr regs end */ 1271 1272 /* graph regs start */ 1273 mode->vr_graph[0] = 159; 1274 mode->vr_graph[1] = 127; 1275 mode->vr_graph[2] = 127; 1276 mode->vr_graph[3] = 131; 1277 mode->vr_graph[4] = 130; 1278 mode->vr_graph[5] = 142; 1279 mode->vr_graph[6] = 30; 1280 mode->vr_graph[7] = 245; 1281 mode->vr_graph[8] = 0; 1282 1283 vga_outb(sc, MISC_W, misc | 0x01); 1284 1285 for(i = 0; i < 5; i++) 1286 voodoo3_write_seq(sc, i, mode->vr_seq[i]); 1287 for (i = 0; i < 0x19; i ++) 1288 voodoo3_write_crtc(sc, i, mode->vr_crtc[i]); 1289 for (i = 0; i < 0x14; i ++) 1290 voodoo3_write_attr(sc, i, mode->vr_attr[i]); 1291 for (i = 0; i < 0x09; i ++) 1292 voodoo3_write_gra(sc, i, mode->vr_graph[i]); 1293 } 1294 1295 static void 1296 voodoofb_set_videomode(struct voodoofb_softc *sc, 1297 const struct videomode *vm) 1298 { 1299 uint32_t miscinit0 = 0; 1300 int vidpll, fout; 1301 uint32_t vp, vidproc = VIDPROCDEFAULT; 1302 uint32_t bpp = 1; /* for now */ 1303 uint32_t bytes_per_row = vm->hdisplay * bpp; 1304 1305 sc->bits_per_pixel = bpp << 3; 1306 sc->width = vm->hdisplay; 1307 sc->height = vm->vdisplay; 1308 sc->linebytes = bytes_per_row; 1309 1310 voodoofb_setup_monitor(sc, vm); 1311 vp = voodoo3_read32(sc, VIDPROCCFG); 1312 1313 vidproc &= ~(0x1c0000); /* clear bits 18 to 20, bpp in vidproccfg */ 1314 /* enable bits 18 to 20 to the required bpp */ 1315 vidproc |= ((bpp - 1) << VIDCFG_PIXFMT_SHIFT); 1316 1317 vidpll = voodoofb_calc_pll(vm->dot_clock, &fout, 0); 1318 1319 #ifdef VOODOOFB_DEBUG 1320 printf("old vidproc: %08x\n", vp); 1321 printf("pll: %08x %d\n", vidpll, fout); 1322 #endif 1323 /* bit 10 of vidproccfg, is enabled or disabled as needed */ 1324 switch (bpp) { 1325 case 1: 1326 /* 1327 * bit 10 off for palettized modes only, off means 1328 * palette is used 1329 */ 1330 vidproc &= ~(1 << 10); 1331 break; 1332 #if 0 1333 case 2: 1334 #if __POWERPC__ 1335 miscinit0 = 0xc0000000; 1336 #endif 1337 /* bypass palette for 16bit modes */ 1338 vidproc |= (1 << 10); 1339 break; 1340 case 4: 1341 #if __POWERPC__ 1342 miscinit0 = 0x40000000; 1343 #endif 1344 vidproc |= (1 << 10); /* Same for 32bit modes */ 1345 break; 1346 #endif 1347 default: 1348 printf("We support only 8 bit for now\n"); 1349 return; 1350 } 1351 1352 voodoofb_wait_idle(sc); 1353 1354 voodoo3_write32(sc, MISCINIT1, voodoo3_read32(sc, MISCINIT1) | 0x01); 1355 1356 voodoo3_make_room(sc, 4); 1357 voodoo3_write32(sc, VGAINIT0, 4928); 1358 voodoo3_write32(sc, DACMODE, 0); 1359 voodoo3_write32(sc, VIDDESKSTRIDE, bytes_per_row); 1360 voodoo3_write32(sc, PLLCTRL0, vidpll); 1361 1362 voodoo3_make_room(sc, 5); 1363 voodoo3_write32(sc, VIDSCREENSIZE, sc->width | (sc->height << 12)); 1364 voodoo3_write32(sc, VIDDESKSTART, 1024); 1365 1366 vidproc &= ~VIDCFG_HWCURSOR_ENABLE; 1367 voodoo3_write32(sc, VIDPROCCFG, vidproc); 1368 1369 voodoo3_write32(sc, VGAINIT1, 0); 1370 voodoo3_write32(sc, MISCINIT0, miscinit0); 1371 #ifdef VOODOOFB_DEBUG 1372 printf("vidproc: %08x\n", vidproc); 1373 #endif 1374 voodoo3_make_room(sc, 8); 1375 voodoo3_write32(sc, SRCBASE, 0); 1376 voodoo3_write32(sc, DSTBASE, 0); 1377 voodoo3_write32(sc, COMMANDEXTRA_2D, 0); 1378 voodoo3_write32(sc, CLIP0MIN, 0); 1379 voodoo3_write32(sc, CLIP0MAX, 0x0fff0fff); 1380 voodoo3_write32(sc, CLIP1MIN, 0); 1381 voodoo3_write32(sc, CLIP1MAX, 0x0fff0fff); 1382 voodoo3_write32(sc, SRCXY, 0); 1383 voodoofb_wait_idle(sc); 1384 printf("%s: switched to %dx%d, %d bit\n", device_xname(&sc->sc_dev), 1385 sc->width, sc->height, sc->bits_per_pixel); 1386 } 1387 1388 static void 1389 voodoofb_init(struct voodoofb_softc *sc) 1390 { 1391 /* XXX */ 1392 uint32_t vgainit0 = 0; 1393 uint32_t vidcfg = 0; 1394 1395 #ifdef VOODOOFB_DEBUG 1396 printf("initializing engine..."); 1397 #endif 1398 vgainit0 = voodoo3_read32(sc, VGAINIT0); 1399 #ifdef VOODOOFB_DEBUG 1400 printf("vga: %08x", vgainit0); 1401 #endif 1402 vgainit0 |= 1403 VGAINIT0_8BIT_DAC | 1404 VGAINIT0_EXT_ENABLE | 1405 VGAINIT0_WAKEUP_3C3 | 1406 VGAINIT0_ALT_READBACK | 1407 VGAINIT0_EXTSHIFTOUT; 1408 1409 vidcfg = voodoo3_read32(sc, VIDPROCCFG); 1410 #ifdef VOODOOFB_DEBUG 1411 printf(" vidcfg: %08x\n", vidcfg); 1412 #endif 1413 vidcfg |= 1414 VIDCFG_VIDPROC_ENABLE | 1415 VIDCFG_DESK_ENABLE; 1416 vidcfg &= ~VIDCFG_HWCURSOR_ENABLE; 1417 1418 voodoo3_make_room(sc, 2); 1419 1420 voodoo3_write32(sc, VGAINIT0, vgainit0); 1421 voodoo3_write32(sc, VIDPROCCFG, vidcfg); 1422 1423 voodoo3_make_room(sc, 8); 1424 voodoo3_write32(sc, SRCBASE, 0); 1425 voodoo3_write32(sc, DSTBASE, 0); 1426 voodoo3_write32(sc, COMMANDEXTRA_2D, 0); 1427 voodoo3_write32(sc, CLIP0MIN, 0); 1428 voodoo3_write32(sc, CLIP0MAX, 0x1fff1fff); 1429 voodoo3_write32(sc, CLIP1MIN, 0); 1430 voodoo3_write32(sc, CLIP1MAX, 0x1fff1fff); 1431 voodoo3_write32(sc, SRCXY, 0); 1432 1433 voodoofb_wait_idle(sc); 1434 } 1435