1 /* $NetBSD: voodoofb.c,v 1.43 2012/11/09 19:50:22 rkujawa Exp $ */ 2 3 /* 4 * Copyright (c) 2005, 2006, 2012 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 1.43 2012/11/09 19:50:22 rkujawa 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 #include <dev/pci/pcivar.h> 46 #include <dev/pci/pcireg.h> 47 #include <dev/pci/pcidevs.h> 48 #include <dev/pci/pciio.h> 49 #include <dev/pci/voodoofbreg.h> 50 51 #include <dev/wscons/wsdisplayvar.h> 52 #include <dev/wscons/wsconsio.h> 53 #include <dev/wsfont/wsfont.h> 54 #include <dev/rasops/rasops.h> 55 #include <dev/wscons/wsdisplay_vconsvar.h> 56 #include <dev/pci/wsdisplay_pci.h> 57 58 #include <dev/i2c/i2cvar.h> 59 #include <dev/i2c/i2c_bitbang.h> 60 #include <dev/i2c/ddcvar.h> 61 #include <dev/videomode/videomode.h> 62 #include <dev/videomode/edidvar.h> 63 #include <dev/videomode/edidreg.h> 64 65 #include "opt_wsemul.h" 66 67 struct voodoofb_softc { 68 device_t sc_dev; 69 pci_chipset_tag_t sc_pc; 70 pcitag_t sc_pcitag; 71 struct pci_attach_args sc_pa; 72 73 bus_space_tag_t sc_memt; 74 bus_space_tag_t sc_iot; 75 bus_space_handle_t sc_memh; 76 77 bus_space_tag_t sc_regt; 78 bus_space_tag_t sc_ioregt; 79 bus_space_handle_t sc_regh; 80 bus_space_handle_t sc_ioregh; 81 bus_addr_t sc_regs, sc_fb, sc_ioreg; 82 bus_size_t sc_regsize, sc_fbsize, sc_ioregsize; 83 84 void *sc_ih; 85 86 #define MAX_CLOCK_VB 270000 /* Voodoo Banshee */ 87 #define MAX_CLOCK_V3 300000 /* Voodoo3 */ 88 #define MAX_CLOCK_V45 350000 /* Voodoo4/5 (not yet) */ 89 uint32_t sc_max_clock; 90 91 size_t sc_memsize; 92 int sc_memtype; 93 94 int sc_bits_per_pixel; 95 int sc_width, sc_height, sc_linebytes; 96 const struct videomode *sc_videomode; 97 98 /* glyph cache */ 99 long sc_defattr, sc_kernattr; 100 uint32_t sc_glyphs_defattr[256]; 101 uint32_t sc_glyphs_kernattr[256]; 102 int sc_numglyphs, sc_usedglyphs; 103 uint32_t sc_cache; /* offset where cache starts */ 104 uint32_t sc_fmt; /* *fmt register */ 105 void *sc_font; 106 107 /* i2c stuff */ 108 struct i2c_controller sc_i2c; 109 uint8_t sc_edid_data[128]; 110 struct edid_info sc_edid_info; 111 uint32_t sc_i2creg; 112 113 int sc_mode; 114 uint32_t sc_bg; 115 116 u_char sc_cmap_red[256]; 117 u_char sc_cmap_green[256]; 118 u_char sc_cmap_blue[256]; 119 int sc_dacw; 120 121 struct vcons_data vd; 122 }; 123 124 struct voodoo_regs { 125 uint8_t vr_crtc[31]; 126 uint8_t vr_graph[9]; 127 uint8_t vr_attr[21]; 128 uint8_t vr_seq[5]; 129 }; 130 131 static struct vcons_screen voodoofb_console_screen; 132 133 static int voodoofb_match(device_t, cfdata_t, void *); 134 static void voodoofb_attach(device_t, device_t, void *); 135 136 static int voodoofb_drm_print(void *, const char *); 137 static int voodoofb_drm_unmap(struct voodoofb_softc *); 138 static int voodoofb_drm_map(struct voodoofb_softc *); 139 140 CFATTACH_DECL_NEW(voodoofb, sizeof(struct voodoofb_softc), voodoofb_match, 141 voodoofb_attach, NULL, NULL); 142 143 static bool voodoofb_is_console(struct voodoofb_softc *); 144 static void voodoofb_init(struct voodoofb_softc *); 145 146 static void voodoofb_cursor(void *, int, int, int); 147 static void voodoofb_putchar(void *, int, int, u_int, long); 148 static void voodoofb_putchar_aa(void *, int, int, u_int, long); 149 static void voodoofb_copycols(void *, int, int, int, int); 150 static void voodoofb_erasecols(void *, int, int, int, long); 151 static void voodoofb_copyrows(void *, int, int, int); 152 static void voodoofb_eraserows(void *, int, int, long); 153 154 #if 0 155 static int voodoofb_allocattr(void *, int, int, int, long *); 156 static void voodoofb_scroll(void *, void *, int); 157 static int voodoofb_load_font(void *, void *, struct wsdisplay_font *); 158 #endif 159 160 static int voodoofb_putcmap(struct voodoofb_softc *, 161 struct wsdisplay_cmap *); 162 static int voodoofb_getcmap(struct voodoofb_softc *, 163 struct wsdisplay_cmap *); 164 static int voodoofb_putpalreg(struct voodoofb_softc *, uint8_t, uint8_t, 165 uint8_t, uint8_t); 166 static void voodoofb_bitblt(struct voodoofb_softc *, int, int, int, int, 167 int, int); 168 static void voodoofb_rectfill(struct voodoofb_softc *, int, int, int, int, 169 int); 170 static void voodoofb_rectinvert(struct voodoofb_softc *, int, int, int, 171 int); 172 static void voodoofb_setup_mono(struct voodoofb_softc *, int, int, int, 173 int, uint32_t, uint32_t); 174 static void voodoofb_feed_line(struct voodoofb_softc *, int, uint8_t *); 175 176 static void voodoofb_wait_idle(struct voodoofb_softc *); 177 static void voodoofb_init_glyphcache(struct voodoofb_softc *, 178 struct rasops_info *); 179 180 #ifdef VOODOOFB_ENABLE_INTR 181 static int voodoofb_intr(void *); 182 #endif 183 184 static void voodoofb_set_videomode(struct voodoofb_softc *, 185 const struct videomode *); 186 187 struct wsscreen_descr voodoofb_defaultscreen = { 188 "default", 189 0, 0, 190 NULL, 191 8, 16, 192 WSSCREEN_WSCOLORS | WSSCREEN_HILIT, 193 NULL, 194 }; 195 196 const struct wsscreen_descr *_voodoofb_scrlist[] = { 197 &voodoofb_defaultscreen, 198 /* XXX other formats, graphics screen? */ 199 }; 200 201 struct wsscreen_list voodoofb_screenlist = { 202 sizeof(_voodoofb_scrlist) / sizeof(struct wsscreen_descr *), _voodoofb_scrlist 203 }; 204 205 static int voodoofb_ioctl(void *, void *, u_long, void *, int, 206 struct lwp *); 207 static paddr_t voodoofb_mmap(void *, void *, off_t, int); 208 209 static void voodoofb_clearscreen(struct voodoofb_softc *); 210 static void voodoofb_init_screen(void *, struct vcons_screen *, int, 211 long *); 212 213 214 struct wsdisplay_accessops voodoofb_accessops = { 215 voodoofb_ioctl, 216 voodoofb_mmap, 217 NULL, 218 NULL, 219 NULL, 220 NULL, /* load_font */ 221 NULL, /* polls */ 222 NULL, /* scroll */ 223 }; 224 225 /* I2C glue */ 226 static int voodoofb_i2c_acquire_bus(void *, int); 227 static void voodoofb_i2c_release_bus(void *, int); 228 static int voodoofb_i2c_send_start(void *, int); 229 static int voodoofb_i2c_send_stop(void *, int); 230 static int voodoofb_i2c_initiate_xfer(void *, i2c_addr_t, int); 231 static int voodoofb_i2c_read_byte(void *, uint8_t *, int); 232 static int voodoofb_i2c_write_byte(void *, uint8_t, int); 233 234 /* I2C bitbang glue */ 235 static void voodoofb_i2cbb_set_bits(void *, uint32_t); 236 static void voodoofb_i2cbb_set_dir(void *, uint32_t); 237 static uint32_t voodoofb_i2cbb_read(void *); 238 239 static void voodoofb_setup_i2c(struct voodoofb_softc *); 240 241 static const struct i2c_bitbang_ops voodoofb_i2cbb_ops = { 242 voodoofb_i2cbb_set_bits, 243 voodoofb_i2cbb_set_dir, 244 voodoofb_i2cbb_read, 245 { 246 VSP_SDA0_IN, 247 VSP_SCL0_IN, 248 0, 249 0 250 } 251 }; 252 253 extern const u_char rasops_cmap[768]; 254 255 /* 256 * Inline functions for getting access to register aperture. 257 */ 258 static inline void 259 voodoo3_write32(struct voodoofb_softc *sc, uint32_t reg, uint32_t val) 260 { 261 bus_space_write_4(sc->sc_regt, sc->sc_regh, reg, val); 262 } 263 264 static inline void 265 voodoo3_write32s(struct voodoofb_softc *sc, uint32_t reg, uint32_t val) 266 { 267 bus_space_write_stream_4(sc->sc_regt, sc->sc_regh, reg, val); 268 } 269 static inline uint32_t 270 voodoo3_read32(struct voodoofb_softc *sc, uint32_t reg) 271 { 272 return bus_space_read_4(sc->sc_regt, sc->sc_regh, reg); 273 } 274 275 static inline void 276 voodoo3_write_crtc(struct voodoofb_softc *sc, uint8_t reg, uint8_t val) 277 { 278 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, CRTC_INDEX - 0x300, reg); 279 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, CRTC_DATA - 0x300, val); 280 } 281 282 static inline void 283 voodoo3_write_seq(struct voodoofb_softc *sc, uint8_t reg, uint8_t val) 284 { 285 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, SEQ_INDEX - 0x300, reg); 286 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, SEQ_DATA - 0x300, val); 287 } 288 289 static inline void 290 voodoo3_write_gra(struct voodoofb_softc *sc, uint8_t reg, uint8_t val) 291 { 292 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, GRA_INDEX - 0x300, reg); 293 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, GRA_DATA - 0x300, val); 294 } 295 296 static inline void 297 voodoo3_write_attr(struct voodoofb_softc *sc, uint8_t reg, uint8_t val) 298 { 299 volatile uint8_t junk; 300 uint8_t index; 301 302 junk = bus_space_read_1(sc->sc_ioregt, sc->sc_ioregh, IS1_R - 0x300); 303 index = bus_space_read_1(sc->sc_ioregt, sc->sc_ioregh, ATT_IW - 0x300); 304 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, ATT_IW - 0x300, reg); 305 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, ATT_IW - 0x300, val); 306 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, ATT_IW - 0x300, index); 307 } 308 309 static inline void 310 vga_outb(struct voodoofb_softc *sc, uint32_t reg, uint8_t val) 311 { 312 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, reg - 0x300, val); 313 } 314 315 /* wait until there's room for len bytes in the FIFO */ 316 static inline void 317 voodoo3_make_room(struct voodoofb_softc *sc, int len) 318 { 319 while ((voodoo3_read32(sc, STATUS) & 0x1f) < len); 320 } 321 322 static void 323 voodoofb_wait_idle(struct voodoofb_softc *sc) 324 { 325 int i = 0; 326 327 voodoo3_make_room(sc, 1); 328 voodoo3_write32(sc, COMMAND_3D, COMMAND_3D_NOP); 329 330 while (1) { 331 i = (voodoo3_read32(sc, STATUS) & STATUS_BUSY) ? 0 : i + 1; 332 if(i == 3) break; 333 } 334 } 335 336 static int 337 voodoofb_match(device_t parent, cfdata_t match, void *aux) 338 { 339 struct pci_attach_args *pa = (struct pci_attach_args *)aux; 340 341 if (PCI_CLASS(pa->pa_class) != PCI_CLASS_DISPLAY || 342 PCI_SUBCLASS(pa->pa_class) != PCI_SUBCLASS_DISPLAY_VGA) 343 return 0; 344 if ((PCI_VENDOR(pa->pa_id)==PCI_VENDOR_3DFX) && 345 (PCI_PRODUCT(pa->pa_id)>=PCI_PRODUCT_3DFX_VOODOO3)) 346 return 100; 347 348 if ((PCI_VENDOR(pa->pa_id)==PCI_VENDOR_3DFX) && 349 (PCI_PRODUCT(pa->pa_id)>=PCI_PRODUCT_3DFX_BANSHEE)) 350 return 100; 351 return 0; 352 } 353 354 static void 355 voodoofb_attach(device_t parent, device_t self, void *aux) 356 { 357 struct voodoofb_softc *sc = device_private(self); 358 struct pci_attach_args *pa = aux; 359 struct wsemuldisplaydev_attach_args aa; 360 struct rasops_info *ri; 361 #ifdef VOODOOFB_ENABLE_INTR 362 pci_intr_handle_t ih; 363 const char *intrstr; 364 #endif 365 ulong defattr; 366 int console, width, height, i, j; 367 prop_dictionary_t dict; 368 int linebytes, depth, flags; 369 uint32_t bg, fg, ul; 370 371 sc->sc_dev = self; 372 373 sc->sc_mode = WSDISPLAYIO_MODE_EMUL; 374 sc->sc_pc = pa->pa_pc; 375 sc->sc_pcitag = pa->pa_tag; 376 sc->sc_dacw = -1; 377 pci_aprint_devinfo(pa, NULL); 378 379 sc->sc_memt = pa->pa_memt; 380 sc->sc_iot = pa->pa_iot; 381 sc->sc_pa = *pa; 382 383 if (PCI_PRODUCT(pa->pa_id)>=PCI_PRODUCT_3DFX_BANSHEE) 384 sc->sc_max_clock = MAX_CLOCK_VB; 385 else 386 sc->sc_max_clock = MAX_CLOCK_V3; 387 388 /* the framebuffer */ 389 if (pci_mapreg_info(sc->sc_pc, sc->sc_pcitag, 0x14, PCI_MAPREG_TYPE_MEM, 390 &sc->sc_fb, &sc->sc_fbsize, &flags)) { 391 aprint_error_dev(self, "failed to map the frame buffer.\n"); 392 } 393 sc->sc_memsize = sc->sc_fbsize >> 1; /* VRAM aperture is 2x VRAM */ 394 395 /* memory-mapped registers */ 396 if (pci_mapreg_map(pa, 0x10, PCI_MAPREG_TYPE_MEM, 0, 397 &sc->sc_regt, &sc->sc_regh, &sc->sc_regs, &sc->sc_regsize)) { 398 aprint_error_dev(self, "failed to map memory-mapped registers.\n"); 399 } 400 401 /* IO-mapped registers */ 402 if (pci_mapreg_map(pa, 0x18, PCI_MAPREG_TYPE_IO, 0, 403 &sc->sc_ioregt, &sc->sc_ioregh, &sc->sc_ioreg, 404 &sc->sc_ioregsize)) { 405 aprint_error_dev(self, "failed to map IO-mapped registers.\n"); 406 } 407 voodoofb_init(sc); 408 409 /* we should read these from the chip instead of depending on OF */ 410 width = height = -1; 411 412 dict = device_properties(self); 413 if (!prop_dictionary_get_uint32(dict, "width", &width)) { 414 aprint_error_dev(self, "no width property\n"); 415 return; 416 } 417 if (!prop_dictionary_get_uint32(dict, "height", &height)) { 418 aprint_error_dev(self, "no height property\n"); 419 return; 420 } 421 if (!prop_dictionary_get_uint32(dict, "depth", &depth)) { 422 aprint_error_dev(self, "no depth property\n"); 423 return; 424 } 425 linebytes = width; /* XXX */ 426 427 if (width == -1 || height == -1) 428 return; 429 430 sc->sc_width = width; 431 sc->sc_height = height; 432 sc->sc_bits_per_pixel = depth; 433 sc->sc_linebytes = linebytes; 434 printf("%s: initial resolution %dx%d, %d bit\n", device_xname(self), 435 sc->sc_width, sc->sc_height, sc->sc_bits_per_pixel); 436 437 sc->sc_videomode = NULL; 438 voodoofb_setup_i2c(sc); 439 440 /* XXX this should at least be configurable via kernel config */ 441 if (sc->sc_videomode == NULL) { 442 sc->sc_videomode = pick_mode_by_ref(width, height, 60); 443 } 444 445 voodoofb_set_videomode(sc, sc->sc_videomode); 446 447 sc->sc_font = NULL; 448 449 vcons_init(&sc->vd, sc, &voodoofb_defaultscreen, &voodoofb_accessops); 450 sc->vd.init_screen = voodoofb_init_screen; 451 452 console = voodoofb_is_console(sc); 453 454 ri = &voodoofb_console_screen.scr_ri; 455 if (console) { 456 vcons_init_screen(&sc->vd, &voodoofb_console_screen, 1, 457 &defattr); 458 voodoofb_console_screen.scr_flags |= VCONS_SCREEN_IS_STATIC; 459 460 voodoofb_defaultscreen.textops = &ri->ri_ops; 461 voodoofb_defaultscreen.capabilities = ri->ri_caps; 462 voodoofb_defaultscreen.nrows = ri->ri_rows; 463 voodoofb_defaultscreen.ncols = ri->ri_cols; 464 wsdisplay_cnattach(&voodoofb_defaultscreen, ri, 0, 0, defattr); 465 } else { 466 /* 467 * since we're not the console we can postpone the rest 468 * until someone actually allocates a screen for us 469 */ 470 voodoofb_set_videomode(sc, sc->sc_videomode); 471 } 472 473 printf("%s: %d MB aperture at 0x%08x, %d MB registers at 0x%08x\n", 474 device_xname(self), (u_int)(sc->sc_fbsize >> 20), 475 (u_int)sc->sc_fb, (u_int)(sc->sc_regsize >> 20), 476 (u_int)sc->sc_regs); 477 #ifdef VOODOOFB_DEBUG 478 printf("fb: %08lx\n", (ulong)ri->ri_bits); 479 #endif 480 481 j = 0; 482 if (sc->sc_bits_per_pixel == 8) { 483 uint8_t tmp; 484 for (i = 0; i < 256; i++) { 485 tmp = i & 0xe0; 486 /* 487 * replicate bits so 0xe0 maps to a red value of 0xff 488 * in order to make white look actually white 489 */ 490 tmp |= (tmp >> 3) | (tmp >> 6); 491 sc->sc_cmap_red[i] = tmp; 492 493 tmp = (i & 0x1c) << 3; 494 tmp |= (tmp >> 3) | (tmp >> 6); 495 sc->sc_cmap_green[i] = tmp; 496 497 tmp = (i & 0x03) << 6; 498 tmp |= tmp >> 2; 499 tmp |= tmp >> 4; 500 sc->sc_cmap_blue[i] = tmp; 501 502 voodoofb_putpalreg(sc, i, sc->sc_cmap_red[i], 503 sc->sc_cmap_green[i], sc->sc_cmap_blue[i]); 504 } 505 } else { 506 /* linear ramp */ 507 for (i = 0; i < 256; i++) { 508 sc->sc_cmap_red[i] = i; 509 sc->sc_cmap_green[i] = i; 510 sc->sc_cmap_blue[i] = i; 511 512 voodoofb_putpalreg(sc, i, sc->sc_cmap_red[i], 513 sc->sc_cmap_green[i], sc->sc_cmap_blue[i]); 514 } 515 } 516 517 #ifdef VOODOOFB_ENABLE_INTR 518 /* Interrupt. We don't use it for anything yet */ 519 if (pci_intr_map(pa, &ih)) { 520 aprint_error_dev(self, "failed to map interrupt\n"); 521 return; 522 } 523 524 intrstr = pci_intr_string(sc->sc_pc, ih); 525 sc->sc_ih = pci_intr_establish(sc->sc_pc, ih, IPL_NET, voodoofb_intr, 526 sc); 527 if (sc->sc_ih == NULL) { 528 aprint_error_dev(self, "failed to establish interrupt"); 529 if (intrstr != NULL) 530 aprint_error(" at %s", intrstr); 531 aprint_error("\n"); 532 return; 533 } 534 aprint_normal_dev(self, "interrupting at %s\n", intrstr); 535 #endif 536 537 rasops_unpack_attr(defattr, &fg, &bg, &ul); 538 sc->sc_bg = ri->ri_devcmap[bg]; 539 voodoofb_clearscreen(sc); 540 541 if (console) 542 vcons_replay_msgbuf(&voodoofb_console_screen); 543 aa.console = console; 544 aa.scrdata = &voodoofb_screenlist; 545 aa.accessops = &voodoofb_accessops; 546 aa.accesscookie = &sc->vd; 547 548 config_found(self, &aa, wsemuldisplaydevprint); 549 config_found_ia(self, "drm", aux, voodoofb_drm_print); 550 } 551 552 static int 553 voodoofb_drm_print(void *opaque, const char *pnp) 554 { 555 if (pnp) 556 aprint_normal("drm at %s", pnp); 557 558 return UNCONF; 559 } 560 561 static int 562 voodoofb_drm_unmap(struct voodoofb_softc *sc) 563 { 564 printf("%s: releasing bus resources\n", device_xname(sc->sc_dev)); 565 566 bus_space_unmap(sc->sc_ioregt, sc->sc_ioregh, sc->sc_ioregsize); 567 bus_space_unmap(sc->sc_regt, sc->sc_regh, sc->sc_regsize); 568 569 return 0; 570 } 571 572 static int 573 voodoofb_drm_map(struct voodoofb_softc *sc) 574 { 575 576 /* memory-mapped registers */ 577 if (pci_mapreg_map(&sc->sc_pa, 0x10, PCI_MAPREG_TYPE_MEM, 0, 578 &sc->sc_regt, &sc->sc_regh, &sc->sc_regs, &sc->sc_regsize)) { 579 aprint_error_dev(sc->sc_dev, "failed to map memory-mapped registers.\n"); 580 } 581 582 /* IO-mapped registers */ 583 if (pci_mapreg_map(&sc->sc_pa, 0x18, PCI_MAPREG_TYPE_IO, 0, 584 &sc->sc_ioregt, &sc->sc_ioregh, &sc->sc_ioreg, 585 &sc->sc_ioregsize)) { 586 aprint_error_dev(sc->sc_dev, "failed to map IO-mapped registers.\n"); 587 } 588 589 voodoofb_init(sc); 590 /* XXX this should at least be configurable via kernel config */ 591 voodoofb_set_videomode(sc, sc->sc_videomode); 592 593 return 0; 594 } 595 596 static int 597 voodoofb_putpalreg(struct voodoofb_softc *sc, uint8_t index, uint8_t r, 598 uint8_t g, uint8_t b) 599 { 600 uint32_t color; 601 602 sc->sc_cmap_red[index] = r; 603 sc->sc_cmap_green[index] = g; 604 sc->sc_cmap_blue[index] = b; 605 606 color = (r << 16) | (g << 8) | b; 607 voodoo3_make_room(sc, 2); 608 voodoo3_write32(sc, DACADDR, index); 609 voodoo3_write32(sc, DACDATA, color); 610 611 return 0; 612 } 613 614 static int 615 voodoofb_putcmap(struct voodoofb_softc *sc, struct wsdisplay_cmap *cm) 616 { 617 u_char *r, *g, *b; 618 u_int index = cm->index; 619 u_int count = cm->count; 620 int i, error; 621 u_char rbuf[256], gbuf[256], bbuf[256]; 622 623 #ifdef VOODOOFB_DEBUG 624 printf("putcmap: %d %d\n",index, count); 625 #endif 626 if (cm->index >= 256 || cm->count > 256 || 627 (cm->index + cm->count) > 256) 628 return EINVAL; 629 error = copyin(cm->red, &rbuf[index], count); 630 if (error) 631 return error; 632 error = copyin(cm->green, &gbuf[index], count); 633 if (error) 634 return error; 635 error = copyin(cm->blue, &bbuf[index], count); 636 if (error) 637 return error; 638 639 memcpy(&sc->sc_cmap_red[index], &rbuf[index], count); 640 memcpy(&sc->sc_cmap_green[index], &gbuf[index], count); 641 memcpy(&sc->sc_cmap_blue[index], &bbuf[index], count); 642 643 r = &sc->sc_cmap_red[index]; 644 g = &sc->sc_cmap_green[index]; 645 b = &sc->sc_cmap_blue[index]; 646 647 for (i = 0; i < count; i++) { 648 voodoofb_putpalreg(sc, index, *r, *g, *b); 649 index++; 650 r++, g++, b++; 651 } 652 return 0; 653 } 654 655 static int 656 voodoofb_getcmap(struct voodoofb_softc *sc, struct wsdisplay_cmap *cm) 657 { 658 u_int index = cm->index; 659 u_int count = cm->count; 660 int error; 661 662 if (index >= 255 || count > 256 || index + count > 256) 663 return EINVAL; 664 665 error = copyout(&sc->sc_cmap_red[index], cm->red, count); 666 if (error) 667 return error; 668 error = copyout(&sc->sc_cmap_green[index], cm->green, count); 669 if (error) 670 return error; 671 error = copyout(&sc->sc_cmap_blue[index], cm->blue, count); 672 if (error) 673 return error; 674 675 return 0; 676 } 677 678 static bool 679 voodoofb_is_console(struct voodoofb_softc *sc) 680 { 681 prop_dictionary_t dict; 682 bool console; 683 684 dict = device_properties(sc->sc_dev); 685 prop_dictionary_get_bool(dict, "is_console", &console); 686 return console; 687 } 688 689 static void 690 voodoofb_clearscreen(struct voodoofb_softc *sc) 691 { 692 voodoofb_rectfill(sc, 0, 0, sc->sc_width, sc->sc_height, sc->sc_bg); 693 } 694 695 /* 696 * wsdisplay_emulops 697 */ 698 699 static void 700 voodoofb_cursor(void *cookie, int on, int row, int col) 701 { 702 struct rasops_info *ri = cookie; 703 struct vcons_screen *scr = ri->ri_hw; 704 struct voodoofb_softc *sc = scr->scr_cookie; 705 int x, y, wi, he; 706 707 wi = ri->ri_font->fontwidth; 708 he = ri->ri_font->fontheight; 709 710 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 711 x = ri->ri_ccol * wi + ri->ri_xorigin; 712 y = ri->ri_crow * he + ri->ri_yorigin; 713 if (ri->ri_flg & RI_CURSOR) { 714 voodoofb_rectinvert(sc, x, y, wi, he); 715 ri->ri_flg &= ~RI_CURSOR; 716 } 717 ri->ri_crow = row; 718 ri->ri_ccol = col; 719 if (on) 720 { 721 x = ri->ri_ccol * wi + ri->ri_xorigin; 722 y = ri->ri_crow * he + ri->ri_yorigin; 723 voodoofb_rectinvert(sc, x, y, wi, he); 724 ri->ri_flg |= RI_CURSOR; 725 } 726 } else { 727 ri->ri_flg &= ~RI_CURSOR; 728 ri->ri_crow = row; 729 ri->ri_ccol = col; 730 } 731 } 732 733 #if 0 734 int 735 voodoofb_mapchar(void *cookie, int uni, u_int *index) 736 { 737 return 0; 738 } 739 #endif 740 741 static void 742 voodoofb_putchar(void *cookie, int row, int col, u_int c, long attr) 743 { 744 struct rasops_info *ri = cookie; 745 struct wsdisplay_font *font = PICK_FONT(ri, c); 746 struct vcons_screen *scr = ri->ri_hw; 747 struct voodoofb_softc *sc = scr->scr_cookie; 748 749 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 750 uint8_t *data; 751 int fg, bg, uc, i; 752 int x, y, wi, he; 753 754 wi = font->fontwidth; 755 he = font->fontheight; 756 757 if (!CHAR_IN_FONT(c, font)) 758 return; 759 bg = (u_char)ri->ri_devcmap[(attr >> 16) & 0xf]; 760 fg = (u_char)ri->ri_devcmap[(attr >> 24) & 0xf]; 761 x = ri->ri_xorigin + col * wi; 762 y = ri->ri_yorigin + row * he; 763 if (c == 0x20) { 764 voodoofb_rectfill(sc, x, y, wi, he, bg); 765 } else { 766 uc = c - font->firstchar; 767 data = (uint8_t *)font->data + uc * 768 ri->ri_fontscale; 769 voodoofb_setup_mono(sc, x, y, wi, he, fg, bg); 770 for (i = 0; i < he; i++) { 771 voodoofb_feed_line(sc, font->stride, data); 772 data += font->stride; 773 } 774 } 775 } 776 } 777 778 static void 779 voodoofb_putchar_aa(void *cookie, int row, int col, u_int c, long attr) 780 { 781 struct rasops_info *ri = cookie; 782 struct wsdisplay_font *font = PICK_FONT(ri, c); 783 struct vcons_screen *scr = ri->ri_hw; 784 struct voodoofb_softc *sc = scr->scr_cookie; 785 uint8_t *data; 786 uint32_t bg, latch = 0, bg8, fg8, pixel, save_offset = 0; 787 int i, x, y, wi, he, r, g, b, aval; 788 int r1, g1, b1, r0, g0, b0, fgo, bgo, j; 789 790 if (sc->sc_mode != WSDISPLAYIO_MODE_EMUL) 791 return; 792 793 if (!CHAR_IN_FONT(c, font)) 794 return; 795 796 wi = font->fontwidth; 797 he = font->fontheight; 798 799 bg = ri->ri_devcmap[(attr >> 16) & 0xf]; 800 x = ri->ri_xorigin + col * wi; 801 y = ri->ri_yorigin + row * he; 802 if (c == 0x20) { 803 voodoofb_rectfill(sc, x, y, wi, he, bg); 804 return; 805 } 806 807 /* first, see if it's in the cache */ 808 if ((attr == sc->sc_defattr) && (c < 256)) { 809 uint32_t offset = sc->sc_glyphs_defattr[c]; 810 if (offset != 0) { 811 voodoo3_make_room(sc, 8); 812 voodoo3_write32(sc, SRCBASE, offset); 813 voodoo3_write32(sc, DSTBASE, 0); 814 voodoo3_write32(sc, SRCFORMAT, sc->sc_fmt); 815 voodoo3_write32(sc, DSTFORMAT, sc->sc_linebytes | FMT_8BIT); 816 voodoo3_write32(sc, DSTSIZE, wi | (he << 16)); 817 voodoo3_write32(sc, DSTXY, x | (y << 16)); 818 voodoo3_write32(sc, SRCXY, 0); 819 voodoo3_write32(sc, COMMAND_2D, COMMAND_2D_S2S_BITBLT | 820 (ROP_COPY << 24) | SST_2D_GO); 821 return; 822 } else { 823 int slot = sc->sc_usedglyphs; 824 sc->sc_usedglyphs++; 825 save_offset = sc->sc_cache + (slot * ri->ri_fontscale); 826 sc->sc_glyphs_defattr[c] = save_offset; 827 } 828 } 829 data = WSFONT_GLYPH(c, font); 830 831 voodoo3_make_room(sc, 7); 832 voodoo3_write32(sc, DSTBASE, 0); 833 voodoo3_write32(sc, SRCFORMAT, FMT_8BIT | FMT_PAD_BYTE); 834 voodoo3_write32(sc, DSTFORMAT, sc->sc_linebytes | FMT_8BIT); 835 voodoo3_write32(sc, DSTSIZE, wi | (he << 16)); 836 voodoo3_write32(sc, DSTXY, x | (y << 16)); 837 voodoo3_write32(sc, SRCXY, 0); 838 voodoo3_write32(sc, COMMAND_2D, COMMAND_2D_H2S_BITBLT | 839 (ROP_COPY << 24) | SST_2D_GO); 840 841 /* 842 * we need the RGB colours here, so get offsets into rasops_cmap 843 */ 844 fgo = ((attr >> 24) & 0xf) * 3; 845 bgo = ((attr >> 16) & 0xf) * 3; 846 847 r0 = rasops_cmap[bgo]; 848 r1 = rasops_cmap[fgo]; 849 g0 = rasops_cmap[bgo + 1]; 850 g1 = rasops_cmap[fgo + 1]; 851 b0 = rasops_cmap[bgo + 2]; 852 b1 = rasops_cmap[fgo + 2]; 853 #define R3G3B2(r, g, b) ((r & 0xe0) | ((g >> 3) & 0x1c) | (b >> 6)) 854 bg8 = R3G3B2(r0, g0, b0); 855 fg8 = R3G3B2(r1, g1, b1); 856 voodoo3_make_room(sc, 15); 857 j = 15; 858 for (i = 0; i < ri->ri_fontscale; i++) { 859 aval = *data; 860 if (aval == 0) { 861 pixel = bg8; 862 } else if (aval == 255) { 863 pixel = fg8; 864 } else { 865 r = aval * r1 + (255 - aval) * r0; 866 g = aval * g1 + (255 - aval) * g0; 867 b = aval * b1 + (255 - aval) * b0; 868 pixel = ((r & 0xe000) >> 8) | 869 ((g & 0xe000) >> 11) | 870 ((b & 0xc000) >> 14); 871 } 872 latch = (latch << 8) | pixel; 873 /* write in 32bit chunks */ 874 if ((i & 3) == 3) { 875 voodoo3_write32s(sc, LAUNCH_2D, latch); 876 /* 877 * not strictly necessary, old data should be shifted 878 * out 879 */ 880 latch = 0; 881 /* 882 * check for pipeline space every now and then 883 * I don't think we can feed a Voodoo3 faster than it 884 * can process simple pixel data but I have been wrong 885 * about that before 886 */ 887 j--; 888 if (j == 0) { 889 voodoo3_make_room(sc, 15); 890 j = 15; 891 } 892 } 893 data++; 894 } 895 /* if we have pixels left in latch write them out */ 896 if ((i & 3) != 0) { 897 latch = latch << ((4 - (i & 3)) << 3); 898 voodoo3_write32s(sc, LAUNCH_2D, latch); 899 } 900 if (save_offset != 0) { 901 /* save the glyph we just drew */ 902 voodoo3_make_room(sc, 8); 903 voodoo3_write32(sc, SRCBASE, 0); 904 voodoo3_write32(sc, DSTBASE, save_offset); 905 voodoo3_write32(sc, SRCFORMAT, sc->sc_linebytes | FMT_8BIT); 906 voodoo3_write32(sc, DSTFORMAT, sc->sc_fmt); 907 voodoo3_write32(sc, DSTSIZE, wi | (he << 16)); 908 voodoo3_write32(sc, DSTXY, 0); 909 voodoo3_write32(sc, SRCXY, x | (y << 16)); 910 voodoo3_write32(sc, COMMAND_2D, COMMAND_2D_S2S_BITBLT | 911 (ROP_COPY << 24) | SST_2D_GO); 912 } 913 } 914 915 static void 916 voodoofb_copycols(void *cookie, int row, int srccol, int dstcol, int ncols) 917 { 918 struct rasops_info *ri = cookie; 919 struct vcons_screen *scr = ri->ri_hw; 920 struct voodoofb_softc *sc = scr->scr_cookie; 921 int32_t xs, xd, y, width, height; 922 923 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 924 xs = ri->ri_xorigin + ri->ri_font->fontwidth * srccol; 925 xd = ri->ri_xorigin + ri->ri_font->fontwidth * dstcol; 926 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 927 width = ri->ri_font->fontwidth * ncols; 928 height = ri->ri_font->fontheight; 929 voodoofb_bitblt(sc, xs, y, xd, y, width, height); 930 } 931 } 932 933 static void 934 voodoofb_erasecols(void *cookie, int row, int startcol, int ncols, 935 long fillattr) 936 { 937 struct rasops_info *ri = cookie; 938 struct vcons_screen *scr = ri->ri_hw; 939 struct voodoofb_softc *sc = scr->scr_cookie; 940 int32_t x, y, width, height, fg, bg, ul; 941 942 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 943 x = ri->ri_xorigin + ri->ri_font->fontwidth * startcol; 944 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 945 width = ri->ri_font->fontwidth * ncols; 946 height = ri->ri_font->fontheight; 947 rasops_unpack_attr(fillattr, &fg, &bg, &ul); 948 949 voodoofb_rectfill(sc, x, y, width, height, ri->ri_devcmap[bg]); 950 } 951 } 952 953 static void 954 voodoofb_copyrows(void *cookie, int srcrow, int dstrow, int nrows) 955 { 956 struct rasops_info *ri = cookie; 957 struct vcons_screen *scr = ri->ri_hw; 958 struct voodoofb_softc *sc = scr->scr_cookie; 959 int32_t x, ys, yd, width, height; 960 961 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 962 x = ri->ri_xorigin; 963 ys = ri->ri_yorigin + ri->ri_font->fontheight * srcrow; 964 yd = ri->ri_yorigin + ri->ri_font->fontheight * dstrow; 965 width = ri->ri_emuwidth; 966 height = ri->ri_font->fontheight * nrows; 967 voodoofb_bitblt(sc, x, ys, x, yd, width, height); 968 } 969 } 970 971 static void 972 voodoofb_eraserows(void *cookie, int row, int nrows, long fillattr) 973 { 974 struct rasops_info *ri = cookie; 975 struct vcons_screen *scr = ri->ri_hw; 976 struct voodoofb_softc *sc = scr->scr_cookie; 977 int32_t x, y, width, height, fg, bg, ul; 978 979 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 980 rasops_unpack_attr(fillattr, &fg, &bg, &ul); 981 if ((row == 0) && (nrows == ri->ri_rows)) { 982 /* clear the whole screen */ 983 voodoofb_rectfill(sc, 0, 0, ri->ri_width, 984 ri->ri_height, ri->ri_devcmap[bg]); 985 } else { 986 x = ri->ri_xorigin; 987 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 988 width = ri->ri_emuwidth; 989 height = ri->ri_font->fontheight * nrows; 990 voodoofb_rectfill(sc, x, y, width, height, 991 ri->ri_devcmap[bg]); 992 } 993 } 994 } 995 996 static void 997 voodoofb_bitblt(struct voodoofb_softc *sc, int xs, int ys, int xd, int yd, int width, int height) 998 { 999 uint32_t fmt, blitcmd; 1000 1001 fmt = sc->sc_linebytes | ((sc->sc_bits_per_pixel + 1002 ((sc->sc_bits_per_pixel == 8) ? 0 : 8)) << 13); 1003 blitcmd = COMMAND_2D_S2S_BITBLT | (ROP_COPY << 24); 1004 1005 if (xs <= xd) { 1006 blitcmd |= BIT(14); 1007 xs += (width - 1); 1008 xd += (width - 1); 1009 } 1010 if (ys <= yd) { 1011 blitcmd |= BIT(15); 1012 ys += (height - 1); 1013 yd += (height - 1); 1014 } 1015 voodoo3_make_room(sc, 8); 1016 1017 voodoo3_write32(sc, SRCBASE, 0); 1018 voodoo3_write32(sc, DSTBASE, 0); 1019 voodoo3_write32(sc, SRCFORMAT, fmt); 1020 voodoo3_write32(sc, DSTFORMAT, fmt); 1021 voodoo3_write32(sc, DSTSIZE, width | (height << 16)); 1022 voodoo3_write32(sc, DSTXY, xd | (yd << 16)); 1023 voodoo3_write32(sc, SRCXY, xs | (ys << 16)); 1024 voodoo3_write32(sc, COMMAND_2D, blitcmd | SST_2D_GO); 1025 } 1026 1027 static void 1028 voodoofb_rectfill(struct voodoofb_softc *sc, int x, int y, int width, 1029 int height, int colour) 1030 { 1031 uint32_t fmt, col; 1032 1033 col = (colour << 24) | (colour << 16) | (colour << 8) | colour; 1034 fmt = sc->sc_linebytes | ((sc->sc_bits_per_pixel + 1035 ((sc->sc_bits_per_pixel == 8) ? 0 : 8)) << 13); 1036 1037 voodoo3_make_room(sc, 7); 1038 voodoo3_write32(sc, DSTFORMAT, fmt); 1039 voodoo3_write32(sc, DSTBASE, 0); 1040 voodoo3_write32(sc, COLORFORE, colour); 1041 voodoo3_write32(sc, COLORBACK, colour); 1042 voodoo3_write32(sc, COMMAND_2D, COMMAND_2D_FILLRECT | (ROP_COPY << 24)); 1043 voodoo3_write32(sc, DSTSIZE, width | (height << 16)); 1044 voodoo3_write32(sc, LAUNCH_2D, x | (y << 16)); 1045 } 1046 1047 static void 1048 voodoofb_rectinvert(struct voodoofb_softc *sc, int x, int y, int width, 1049 int height) 1050 { 1051 uint32_t fmt; 1052 1053 fmt = sc->sc_linebytes | ((sc->sc_bits_per_pixel + 1054 ((sc->sc_bits_per_pixel == 8) ? 0 : 8)) << 13); 1055 1056 voodoo3_make_room(sc, 8); 1057 voodoo3_write32(sc, SRCBASE, 0); 1058 voodoo3_write32(sc, DSTBASE, 0); 1059 voodoo3_write32(sc, DSTFORMAT, fmt); 1060 voodoo3_write32(sc, COMMAND_2D, COMMAND_2D_FILLRECT | 1061 (ROP_INVERT << 24)); 1062 voodoo3_write32(sc, DSTSIZE, width | (height << 16)); 1063 voodoo3_write32(sc, DSTXY, x | (y << 16)); 1064 voodoo3_write32(sc, LAUNCH_2D, x | (y << 16)); 1065 } 1066 1067 static void 1068 voodoofb_setup_mono(struct voodoofb_softc *sc, int xd, int yd, int width, int height, uint32_t fg, 1069 uint32_t bg) 1070 { 1071 uint32_t dfmt, sfmt = sc->sc_linebytes; 1072 1073 dfmt = sc->sc_linebytes | ((sc->sc_bits_per_pixel + 1074 ((sc->sc_bits_per_pixel == 8) ? 0 : 8)) << 13); 1075 1076 voodoo3_make_room(sc, 10); 1077 voodoo3_write32(sc, SRCFORMAT, sfmt); 1078 voodoo3_write32(sc, DSTFORMAT, dfmt); 1079 voodoo3_write32(sc, DSTBASE, 0); 1080 voodoo3_write32(sc, COLORFORE, fg); 1081 voodoo3_write32(sc, COLORBACK, bg); 1082 voodoo3_write32(sc, DSTSIZE, width | (height << 16)); 1083 voodoo3_write32(sc, DSTXY, xd | (yd << 16)); 1084 voodoo3_write32(sc, SRCXY, 0); 1085 voodoo3_write32(sc, COMMAND_2D, COMMAND_2D_H2S_BITBLT | 1086 (ROP_COPY << 24) | SST_2D_GO); 1087 1088 /* now feed the data into the chip */ 1089 } 1090 1091 static void 1092 voodoofb_feed_line(struct voodoofb_softc *sc, int count, uint8_t *data) 1093 { 1094 int i; 1095 uint32_t latch = 0, bork; 1096 int shift = 0; 1097 1098 voodoo3_make_room(sc, count); 1099 for (i = 0; i < count; i++) { 1100 bork = data[i]; 1101 latch |= (bork << shift); 1102 if (shift == 24) { 1103 voodoo3_write32(sc, LAUNCH_2D, latch); 1104 latch = 0; 1105 shift = 0; 1106 } else 1107 shift += 8; 1108 } 1109 if (shift != 24) 1110 voodoo3_write32(sc, LAUNCH_2D, latch); 1111 } 1112 1113 #if 0 1114 static int 1115 voodoofb_allocattr(void *cookie, int fg, int bg, int flags, long *attrp) 1116 { 1117 1118 return 0; 1119 } 1120 #endif 1121 1122 /* 1123 * wsdisplay_accessops 1124 */ 1125 1126 static int 1127 voodoofb_ioctl(void *v, void *vs, u_long cmd, void *data, int flag, 1128 struct lwp *l) 1129 { 1130 struct vcons_data *vd = v; 1131 struct voodoofb_softc *sc = vd->cookie; 1132 struct wsdisplay_fbinfo *wdf; 1133 struct vcons_screen *ms = vd->active; 1134 1135 switch (cmd) { 1136 case WSDISPLAYIO_GTYPE: 1137 *(u_int *)data = WSDISPLAY_TYPE_PCIMISC; 1138 return 0; 1139 1140 case WSDISPLAYIO_GINFO: 1141 wdf = (void *)data; 1142 wdf->height = ms->scr_ri.ri_height; 1143 wdf->width = ms->scr_ri.ri_width; 1144 wdf->depth = ms->scr_ri.ri_depth; 1145 wdf->cmsize = 256; 1146 return 0; 1147 1148 case WSDISPLAYIO_GETCMAP: 1149 return voodoofb_getcmap(sc, 1150 (struct wsdisplay_cmap *)data); 1151 1152 case WSDISPLAYIO_PUTCMAP: 1153 return voodoofb_putcmap(sc, 1154 (struct wsdisplay_cmap *)data); 1155 1156 /* PCI config read/write passthrough. */ 1157 case PCI_IOC_CFGREAD: 1158 case PCI_IOC_CFGWRITE: 1159 return pci_devioctl(sc->sc_pc, sc->sc_pcitag, 1160 cmd, data, flag, l); 1161 1162 case WSDISPLAYIO_GET_BUSID: 1163 return wsdisplayio_busid_pci(sc->sc_dev, sc->sc_pc, 1164 sc->sc_pcitag, data); 1165 1166 case WSDISPLAYIO_SMODE: { 1167 int new_mode = *(int*)data; 1168 if (new_mode != sc->sc_mode) { 1169 sc->sc_mode = new_mode; 1170 if (new_mode == WSDISPLAYIO_MODE_EMUL) { 1171 voodoofb_drm_map(sc); 1172 int i; 1173 1174 /* restore the palette */ 1175 for (i = 0; i < 256; i++) { 1176 voodoofb_putpalreg(sc, 1177 i, 1178 sc->sc_cmap_red[i], 1179 sc->sc_cmap_green[i], 1180 sc->sc_cmap_blue[i]); 1181 } 1182 1183 /* zap the glyph cache */ 1184 for (i = 0; i < 256; i++) { 1185 sc->sc_glyphs_defattr[i] = 0; 1186 sc->sc_glyphs_kernattr[i] = 0; 1187 } 1188 sc->sc_usedglyphs = 0; 1189 1190 voodoofb_clearscreen(sc); 1191 vcons_redraw_screen(ms); 1192 } else { 1193 voodoofb_drm_unmap(sc); 1194 } 1195 } 1196 } 1197 return 0; 1198 } 1199 return EPASSTHROUGH; 1200 } 1201 1202 static paddr_t 1203 voodoofb_mmap(void *v, void *vs, off_t offset, int prot) 1204 { 1205 struct vcons_data *vd = v; 1206 struct voodoofb_softc *sc = vd->cookie; 1207 paddr_t pa; 1208 1209 /* 'regular' framebuffer mmap()ing */ 1210 if (offset < sc->sc_fbsize) { 1211 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 1212 BUS_SPACE_MAP_LINEAR); 1213 return pa; 1214 } 1215 1216 /* 1217 * restrict all other mappings to processes with superuser privileges 1218 * or the kernel itself 1219 */ 1220 if (kauth_authorize_machdep(kauth_cred_get(), KAUTH_MACHDEP_UNMANAGEDMEM, 1221 NULL, NULL, NULL, NULL) != 0) { 1222 aprint_error_dev(sc->sc_dev, "mmap() rejected.\n"); 1223 return -1; 1224 } 1225 1226 if ((offset >= sc->sc_fb) && (offset < (sc->sc_fb + sc->sc_fbsize))) { 1227 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 1228 BUS_SPACE_MAP_LINEAR); 1229 return pa; 1230 } 1231 1232 if ((offset >= sc->sc_regs) && (offset < (sc->sc_regs + 1233 sc->sc_regsize))) { 1234 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 1235 BUS_SPACE_MAP_LINEAR); 1236 return pa; 1237 } 1238 1239 #ifdef PCI_MAGIC_IO_RANGE 1240 /* allow mapping of IO space */ 1241 if ((offset >= PCI_MAGIC_IO_RANGE) &&\ 1242 (offset < PCI_MAGIC_IO_RANGE + 0x10000)) { 1243 pa = bus_space_mmap(sc->sc_iot, offset - PCI_MAGIC_IO_RANGE, 1244 0, prot, BUS_SPACE_MAP_LINEAR); 1245 return pa; 1246 } 1247 #endif 1248 1249 #ifdef OFB_ALLOW_OTHERS 1250 if (offset >= 0x80000000) { 1251 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 1252 BUS_SPACE_MAP_LINEAR); 1253 return pa; 1254 } 1255 #endif 1256 return -1; 1257 } 1258 1259 static void 1260 voodoofb_init_screen(void *cookie, struct vcons_screen *scr, 1261 int existing, long *defattr) 1262 { 1263 struct voodoofb_softc *sc = cookie; 1264 struct rasops_info *ri = &scr->scr_ri; 1265 1266 ri->ri_depth = sc->sc_bits_per_pixel; 1267 ri->ri_width = sc->sc_width; 1268 ri->ri_height = sc->sc_height; 1269 ri->ri_stride = sc->sc_linebytes; 1270 ri->ri_flg = RI_CENTER | RI_8BIT_IS_RGB | RI_ENABLE_ALPHA; 1271 1272 rasops_init(ri, 0, 0); 1273 ri->ri_caps = WSSCREEN_WSCOLORS; 1274 1275 rasops_reconfig(ri, sc->sc_height / ri->ri_font->fontheight, 1276 sc->sc_width / ri->ri_font->fontwidth); 1277 1278 ri->ri_hw = scr; 1279 ri->ri_ops.copyrows = voodoofb_copyrows; 1280 ri->ri_ops.copycols = voodoofb_copycols; 1281 ri->ri_ops.eraserows = voodoofb_eraserows; 1282 ri->ri_ops.erasecols = voodoofb_erasecols; 1283 ri->ri_ops.cursor = voodoofb_cursor; 1284 if (FONT_IS_ALPHA(ri->ri_font)) { 1285 ri->ri_ops.putchar = voodoofb_putchar_aa; 1286 ri->ri_ops.allocattr(ri, WS_DEFAULT_FG, WS_DEFAULT_BG, 1287 0, &sc->sc_defattr); 1288 sc->sc_kernattr = (WS_KERNEL_FG << 24) | (WS_KERNEL_BG << 16); 1289 voodoofb_init_glyphcache(sc, ri); 1290 } else { 1291 ri->ri_ops.putchar = voodoofb_putchar; 1292 } 1293 } 1294 1295 #if 0 1296 int 1297 voodoofb_load_font(void *v, void *cookie, struct wsdisplay_font *data) 1298 { 1299 1300 return 0; 1301 } 1302 #endif 1303 1304 #ifdef VOODOOFB_ENABLE_INTR 1305 static int 1306 voodoofb_intr(void *arg) 1307 { 1308 struct voodoofb_softc *sc = arg; 1309 1310 voodoo3_write32(sc, V3_STATUS, 0); /* clear interrupts */ 1311 return 1; 1312 } 1313 #endif 1314 1315 /* video mode stuff */ 1316 1317 #define REFFREQ 14318 /* .18 */ 1318 1319 #define ABS(a) ((a < 0) ? -a : a) 1320 1321 static int 1322 voodoofb_calc_pll(int freq, int *f_out, int isBanshee) 1323 { 1324 int m, n, k, best_m, best_n, best_k, f_cur, best_error; 1325 int minm, maxm; 1326 1327 best_error = freq; 1328 best_n = best_m = best_k = 0; 1329 1330 if (isBanshee) { 1331 minm = 24; 1332 maxm = 24; 1333 } else { 1334 minm = 1; 1335 maxm = 57; 1336 /* This used to be 64, alas it seems the last 8 (funny that ?) 1337 * values cause jittering at lower resolutions. I've not done 1338 * any calculations to what the adjustment affects clock ranges, 1339 * but I can still run at 1600x1200@75Hz */ 1340 } 1341 for (n = 1; n < 256; n++) { 1342 f_cur = REFFREQ * (n + 2); 1343 if (f_cur < freq) { 1344 f_cur = f_cur / 3; 1345 if (freq - f_cur < best_error) { 1346 best_error = freq - f_cur; 1347 best_n = n; 1348 best_m = 1; 1349 best_k = 0; 1350 continue; 1351 } 1352 } 1353 for (m = minm; m < maxm; m++) { 1354 for (k = 0; k < 4; k++) { 1355 f_cur = REFFREQ * (n + 2) / (m + 2) / (1 << k); 1356 if (ABS(f_cur - freq) < best_error) { 1357 best_error = ABS(f_cur - freq); 1358 best_n = n; 1359 best_m = m; 1360 best_k = k; 1361 } 1362 } 1363 } 1364 } 1365 n = best_n; 1366 m = best_m; 1367 k = best_k; 1368 *f_out = REFFREQ * (n + 2) / (m + 2) / (1 << k); 1369 return ( n << 8) | (m << 2) | k; 1370 } 1371 1372 static void 1373 voodoofb_setup_monitor(struct voodoofb_softc *sc, const struct videomode *vm) 1374 { 1375 struct voodoo_regs mod; 1376 struct voodoo_regs *mode; 1377 uint32_t horizontal_display_end, horizontal_sync_start, 1378 horizontal_sync_end, horizontal_total, 1379 horizontal_blanking_start, horizontal_blanking_end; 1380 1381 uint32_t vertical_display_enable_end, vertical_sync_start, 1382 vertical_sync_end, vertical_total, vertical_blanking_start, 1383 vertical_blanking_end; 1384 1385 uint32_t wd; // CRTC offset 1386 1387 int i; 1388 1389 uint8_t misc; 1390 1391 memset(&mod, 0, sizeof(mode)); 1392 1393 mode = &mod; 1394 1395 wd = (vm->hdisplay >> 3) - 1; 1396 horizontal_display_end = (vm->hdisplay >> 3) - 1; 1397 horizontal_sync_start = (vm->hsync_start >> 3) - 1; 1398 horizontal_sync_end = (vm->hsync_end >> 3) - 1; 1399 horizontal_total = (vm->htotal >> 3) - 1; 1400 horizontal_blanking_start = horizontal_display_end; 1401 horizontal_blanking_end = horizontal_total; 1402 1403 vertical_display_enable_end = vm->vdisplay - 1; 1404 vertical_sync_start = vm->vsync_start; // - 1; 1405 vertical_sync_end = vm->vsync_end; // - 1; 1406 vertical_total = vm->vtotal - 2; 1407 vertical_blanking_start = vertical_display_enable_end; 1408 vertical_blanking_end = vertical_total; 1409 1410 #if 0 1411 misc = 0x0f | 1412 (vm->hdisplay < 400 ? 0xa0 : 1413 vm->hdisplay < 480 ? 0x60 : 1414 vm->hdisplay < 768 ? 0xe0 : 0x20); 1415 #else 1416 misc = 0x2f; 1417 if (vm->flags & VID_NHSYNC) 1418 misc |= HSYNC_NEG; 1419 if (vm->flags & VID_NVSYNC) 1420 misc |= VSYNC_NEG; 1421 #ifdef VOODOOFB_DEBUG 1422 printf("misc: %02x\n", misc); 1423 #endif 1424 #endif 1425 mode->vr_seq[0] = 3; 1426 mode->vr_seq[1] = 1; 1427 mode->vr_seq[2] = 8; 1428 mode->vr_seq[3] = 0; 1429 mode->vr_seq[4] = 6; 1430 1431 /* crtc regs start */ 1432 mode->vr_crtc[0] = horizontal_total - 4; 1433 mode->vr_crtc[1] = horizontal_display_end; 1434 mode->vr_crtc[2] = horizontal_blanking_start; 1435 mode->vr_crtc[3] = 0x80 | (horizontal_blanking_end & 0x1f); 1436 mode->vr_crtc[4] = horizontal_sync_start; 1437 1438 mode->vr_crtc[5] = ((horizontal_blanking_end & 0x20) << 2) | 1439 (horizontal_sync_end & 0x1f); 1440 mode->vr_crtc[6] = vertical_total; 1441 mode->vr_crtc[7] = ((vertical_sync_start & 0x200) >> 2) | 1442 ((vertical_display_enable_end & 0x200) >> 3) | 1443 ((vertical_total & 0x200) >> 4) | 1444 0x10 | 1445 ((vertical_blanking_start & 0x100) >> 5) | 1446 ((vertical_sync_start & 0x100) >> 6) | 1447 ((vertical_display_enable_end & 0x100) >> 7) | 1448 ((vertical_total & 0x100) >> 8); 1449 1450 mode->vr_crtc[8] = 0; 1451 mode->vr_crtc[9] = 0x40 | 1452 ((vertical_blanking_start & 0x200) >> 4); 1453 1454 mode->vr_crtc[10] = 0; 1455 mode->vr_crtc[11] = 0; 1456 mode->vr_crtc[12] = 0; 1457 mode->vr_crtc[13] = 0; 1458 mode->vr_crtc[14] = 0; 1459 mode->vr_crtc[15] = 0; 1460 1461 mode->vr_crtc[16] = vertical_sync_start; 1462 mode->vr_crtc[17] = (vertical_sync_end & 0x0f) | 0x20; 1463 mode->vr_crtc[18] = vertical_display_enable_end; 1464 mode->vr_crtc[19] = wd; // CRTC offset 1465 mode->vr_crtc[20] = 0; 1466 mode->vr_crtc[21] = vertical_blanking_start; 1467 mode->vr_crtc[22] = vertical_blanking_end + 1; 1468 mode->vr_crtc[23] = 128; 1469 mode->vr_crtc[24] = 255; 1470 1471 /* overflow registers */ 1472 mode->vr_crtc[CRTC_HDISP_EXT] = 1473 (horizontal_total&0x100) >> 8 | 1474 (horizontal_display_end & 0x100) >> 6 | 1475 (horizontal_blanking_start & 0x100) >> 4 | 1476 (horizontal_blanking_end & 0x40) >> 1 | 1477 (horizontal_sync_start & 0x100) >> 2 | 1478 (horizontal_sync_end & 0x20) << 2; 1479 1480 mode->vr_crtc[CRTC_VDISP_EXT] = 1481 (vertical_total & 0x400) >> 10 | 1482 (vertical_display_enable_end & 0x400) >> 8 | /* the manual is contradictory here */ 1483 (vertical_blanking_start & 0x400) >> 6 | 1484 (vertical_blanking_end & 0x400) >> 4; 1485 1486 /* attr regs start */ 1487 mode->vr_attr[0] = 0; 1488 mode->vr_attr[1] = 0; 1489 mode->vr_attr[2] = 0; 1490 mode->vr_attr[3] = 0; 1491 mode->vr_attr[4] = 0; 1492 mode->vr_attr[5] = 0; 1493 mode->vr_attr[6] = 0; 1494 mode->vr_attr[7] = 0; 1495 mode->vr_attr[8] = 0; 1496 mode->vr_attr[9] = 0; 1497 mode->vr_attr[10] = 0; 1498 mode->vr_attr[11] = 0; 1499 mode->vr_attr[12] = 0; 1500 mode->vr_attr[13] = 0; 1501 mode->vr_attr[14] = 0; 1502 mode->vr_attr[15] = 0; 1503 mode->vr_attr[16] = 1; 1504 mode->vr_attr[17] = 0; 1505 mode->vr_attr[18] = 15; 1506 mode->vr_attr[19] = 0; 1507 /* attr regs end */ 1508 1509 /* graph regs start */ 1510 mode->vr_graph[0] = 159; 1511 mode->vr_graph[1] = 127; 1512 mode->vr_graph[2] = 127; 1513 mode->vr_graph[3] = 131; 1514 mode->vr_graph[4] = 130; 1515 mode->vr_graph[5] = 142; 1516 mode->vr_graph[6] = 30; 1517 mode->vr_graph[7] = 245; 1518 mode->vr_graph[8] = 0; 1519 1520 vga_outb(sc, MISC_W, misc | 0x01); 1521 1522 for(i = 0; i < 5; i++) 1523 voodoo3_write_seq(sc, i, mode->vr_seq[i]); 1524 for (i = 0; i < CRTC_PCI_READBACK; i ++) 1525 voodoo3_write_crtc(sc, i, mode->vr_crtc[i]); 1526 for (i = 0; i < 0x14; i ++) 1527 voodoo3_write_attr(sc, i, mode->vr_attr[i]); 1528 for (i = 0; i < 0x09; i ++) 1529 voodoo3_write_gra(sc, i, mode->vr_graph[i]); 1530 } 1531 1532 static void 1533 voodoofb_set_videomode(struct voodoofb_softc *sc, 1534 const struct videomode *vm) 1535 { 1536 uint32_t miscinit0 = 0; 1537 int vidpll, fout; 1538 uint32_t vp, vidproc = VIDPROCDEFAULT; 1539 uint32_t bpp = 1; /* for now */ 1540 uint32_t bytes_per_row = vm->hdisplay * bpp; 1541 1542 sc->sc_bits_per_pixel = bpp << 3; 1543 sc->sc_width = vm->hdisplay; 1544 sc->sc_height = vm->vdisplay; 1545 sc->sc_linebytes = bytes_per_row; 1546 1547 voodoofb_setup_monitor(sc, vm); 1548 vp = voodoo3_read32(sc, VIDPROCCFG); 1549 1550 vidproc &= ~(0x1c0000); /* clear bits 18 to 20, bpp in vidproccfg */ 1551 /* enable bits 18 to 20 to the required bpp */ 1552 vidproc |= ((bpp - 1) << VIDCFG_PIXFMT_SHIFT); 1553 1554 vidpll = voodoofb_calc_pll(vm->dot_clock, &fout, 0); 1555 1556 #ifdef VOODOOFB_DEBUG 1557 printf("old vidproc: %08x\n", vp); 1558 printf("pll: %08x %d\n", vidpll, fout); 1559 #endif 1560 /* bit 10 of vidproccfg, is enabled or disabled as needed */ 1561 switch (bpp) { 1562 case 1: 1563 /* 1564 * bit 10 off for palettized modes only, off means 1565 * palette is used 1566 */ 1567 vidproc &= ~(1 << 10); 1568 break; 1569 #if 0 1570 case 2: 1571 #if __POWERPC__ 1572 miscinit0 = 0xc0000000; 1573 #endif 1574 /* bypass palette for 16bit modes */ 1575 vidproc |= (1 << 10); 1576 break; 1577 case 4: 1578 #if __POWERPC__ 1579 miscinit0 = 0x40000000; 1580 #endif 1581 vidproc |= (1 << 10); /* Same for 32bit modes */ 1582 break; 1583 #endif 1584 default: 1585 printf("We support only 8 bit for now\n"); 1586 return; 1587 } 1588 1589 voodoofb_wait_idle(sc); 1590 1591 voodoo3_write32(sc, MISCINIT1, voodoo3_read32(sc, MISCINIT1) | 0x01); 1592 1593 voodoo3_make_room(sc, 4); 1594 voodoo3_write32(sc, VGAINIT0, 4928); 1595 voodoo3_write32(sc, DACMODE, 0); 1596 voodoo3_write32(sc, VIDDESKSTRIDE, bytes_per_row); 1597 voodoo3_write32(sc, PLLCTRL0, vidpll); 1598 1599 voodoo3_make_room(sc, 5); 1600 voodoo3_write32(sc, VIDSCREENSIZE, sc->sc_width | 1601 (sc->sc_height << 12)); 1602 voodoo3_write32(sc, VIDDESKSTART, 0); 1603 1604 vidproc &= ~VIDCFG_HWCURSOR_ENABLE; 1605 voodoo3_write32(sc, VIDPROCCFG, vidproc); 1606 1607 voodoo3_write32(sc, VGAINIT1, 0); 1608 voodoo3_write32(sc, MISCINIT0, miscinit0); 1609 #ifdef VOODOOFB_DEBUG 1610 printf("vidproc: %08x\n", vidproc); 1611 #endif 1612 voodoo3_make_room(sc, 8); 1613 voodoo3_write32(sc, SRCBASE, 0); 1614 voodoo3_write32(sc, DSTBASE, 0); 1615 voodoo3_write32(sc, COMMANDEXTRA_2D, 0); 1616 voodoo3_write32(sc, CLIP0MIN, 0); 1617 voodoo3_write32(sc, CLIP0MAX, 0x0fff0fff); 1618 voodoo3_write32(sc, CLIP1MIN, 0); 1619 voodoo3_write32(sc, CLIP1MAX, 0x0fff0fff); 1620 voodoo3_write32(sc, SRCXY, 0); 1621 voodoofb_wait_idle(sc); 1622 printf("%s: switched to %dx%d, %d bit\n", device_xname(sc->sc_dev), 1623 sc->sc_width, sc->sc_height, sc->sc_bits_per_pixel); 1624 sc->sc_numglyphs = 0; /* invalidate the glyph cache */ 1625 } 1626 1627 static void 1628 voodoofb_init(struct voodoofb_softc *sc) 1629 { 1630 /* XXX */ 1631 uint32_t vgainit0 = 0; 1632 uint32_t vidcfg = 0; 1633 1634 #ifdef VOODOOFB_DEBUG 1635 printf("initializing engine..."); 1636 #endif 1637 vgainit0 = voodoo3_read32(sc, VGAINIT0); 1638 #ifdef VOODOOFB_DEBUG 1639 printf("vga: %08x", vgainit0); 1640 #endif 1641 vgainit0 |= 1642 VGAINIT0_8BIT_DAC | 1643 VGAINIT0_EXT_ENABLE | 1644 VGAINIT0_WAKEUP_3C3 | 1645 VGAINIT0_ALT_READBACK | 1646 VGAINIT0_EXTSHIFTOUT; 1647 1648 vidcfg = voodoo3_read32(sc, VIDPROCCFG); 1649 #ifdef VOODOOFB_DEBUG 1650 printf(" vidcfg: %08x\n", vidcfg); 1651 #endif 1652 vidcfg |= 1653 VIDCFG_VIDPROC_ENABLE | 1654 VIDCFG_DESK_ENABLE; 1655 vidcfg &= ~VIDCFG_HWCURSOR_ENABLE; 1656 1657 voodoo3_make_room(sc, 2); 1658 1659 voodoo3_write32(sc, VGAINIT0, vgainit0); 1660 voodoo3_write32(sc, VIDPROCCFG, vidcfg); 1661 1662 voodoo3_make_room(sc, 8); 1663 voodoo3_write32(sc, SRCBASE, 0); 1664 voodoo3_write32(sc, DSTBASE, 0); 1665 voodoo3_write32(sc, COMMANDEXTRA_2D, 0); 1666 voodoo3_write32(sc, CLIP0MIN, 0); 1667 voodoo3_write32(sc, CLIP0MAX, 0x1fff1fff); 1668 voodoo3_write32(sc, CLIP1MIN, 0); 1669 voodoo3_write32(sc, CLIP1MAX, 0x1fff1fff); 1670 voodoo3_write32(sc, SRCXY, 0); 1671 1672 voodoofb_wait_idle(sc); 1673 } 1674 1675 #define MAX_HRES 1700 /* 1676 * XXX in theory we can go higher but I 1677 * couldn't get anything above 1680 x 1200 1678 * to work, so until I find out why, it's 1679 * disabled so people won't end up with a 1680 * blank screen 1681 */ 1682 #define MODE_IS_VALID(m, mclk) (((m)->dot_clock <= (mclk)) && \ 1683 ((m)->hdisplay < MAX_HRES)) 1684 static void 1685 voodoofb_setup_i2c(struct voodoofb_softc *sc) 1686 { 1687 int i; 1688 1689 /* Fill in the i2c tag */ 1690 sc->sc_i2c.ic_cookie = sc; 1691 sc->sc_i2c.ic_acquire_bus = voodoofb_i2c_acquire_bus; 1692 sc->sc_i2c.ic_release_bus = voodoofb_i2c_release_bus; 1693 sc->sc_i2c.ic_send_start = voodoofb_i2c_send_start; 1694 sc->sc_i2c.ic_send_stop = voodoofb_i2c_send_stop; 1695 sc->sc_i2c.ic_initiate_xfer = voodoofb_i2c_initiate_xfer; 1696 sc->sc_i2c.ic_read_byte = voodoofb_i2c_read_byte; 1697 sc->sc_i2c.ic_write_byte = voodoofb_i2c_write_byte; 1698 sc->sc_i2c.ic_exec = NULL; 1699 1700 sc->sc_i2creg = voodoo3_read32(sc, VIDSERPARPORT); 1701 #ifdef VOODOOFB_DEBUG 1702 printf("data: %08x\n", sc->sc_i2creg); 1703 #endif 1704 sc->sc_i2creg |= VSP_ENABLE_IIC0; 1705 sc->sc_i2creg &= ~(VSP_SDA0_OUT | VSP_SCL0_OUT); 1706 voodoo3_write32(sc, VIDSERPARPORT, sc->sc_i2creg); 1707 1708 /* zero out the EDID buffer */ 1709 memset(sc->sc_edid_data, 0, 128); 1710 1711 /* Some monitors don't respond first time */ 1712 i = 0; 1713 while (sc->sc_edid_data[1] == 0 && i++ < 3) 1714 ddc_read_edid(&sc->sc_i2c, sc->sc_edid_data, 128); 1715 if (i < 3) { 1716 if (edid_parse(sc->sc_edid_data, &sc->sc_edid_info) != -1) { 1717 #ifdef VOODOOFB_DEBUG 1718 edid_print(&sc->sc_edid_info); 1719 #endif 1720 /* 1721 * Now pick a mode. 1722 * How do we know our max. pixel clock? 1723 * All Voodoo3 should support at least 250MHz. 1724 * All Voodoo3 I've seen so far have at least 8MB 1725 * which we're not going to exhaust either in 8bit. 1726 */ 1727 if ((sc->sc_edid_info.edid_preferred_mode != NULL)) { 1728 struct videomode *m = 1729 sc->sc_edid_info.edid_preferred_mode; 1730 if (MODE_IS_VALID(m, sc->sc_max_clock)) { 1731 sc->sc_videomode = m; 1732 } else { 1733 aprint_error_dev(sc->sc_dev, 1734 "unable to use preferred mode\n"); 1735 } 1736 } 1737 /* 1738 * if we can't use the preferred mode go look for the 1739 * best one we can support 1740 */ 1741 if (sc->sc_videomode == NULL) { 1742 int n = 0; 1743 struct videomode *m = 1744 sc->sc_edid_info.edid_modes; 1745 1746 sort_modes(sc->sc_edid_info.edid_modes, 1747 &sc->sc_edid_info.edid_preferred_mode, 1748 sc->sc_edid_info.edid_nmodes); 1749 while ((sc->sc_videomode == NULL) && 1750 (n < sc->sc_edid_info.edid_nmodes)) { 1751 if (MODE_IS_VALID(&m[n], 1752 sc->sc_max_clock)) { 1753 sc->sc_videomode = &m[n]; 1754 } 1755 n++; 1756 } 1757 } 1758 } 1759 } 1760 } 1761 1762 /* I2C bitbanging */ 1763 static void voodoofb_i2cbb_set_bits(void *cookie, uint32_t bits) 1764 { 1765 struct voodoofb_softc *sc = cookie; 1766 uint32_t out; 1767 1768 out = bits >> 2; /* bitmasks match the IN bits */ 1769 1770 voodoo3_write32(sc, VIDSERPARPORT, sc->sc_i2creg | out); 1771 } 1772 1773 static void voodoofb_i2cbb_set_dir(void *cookie, uint32_t dir) 1774 { 1775 /* Nothing to do */ 1776 } 1777 1778 static uint32_t voodoofb_i2cbb_read(void *cookie) 1779 { 1780 struct voodoofb_softc *sc = cookie; 1781 uint32_t bits; 1782 1783 bits = voodoo3_read32(sc, VIDSERPARPORT); 1784 1785 return bits; 1786 } 1787 1788 /* higher level I2C stuff */ 1789 static int 1790 voodoofb_i2c_acquire_bus(void *cookie, int flags) 1791 { 1792 /* private bus */ 1793 return (0); 1794 } 1795 1796 static void 1797 voodoofb_i2c_release_bus(void *cookie, int flags) 1798 { 1799 /* private bus */ 1800 } 1801 1802 static int 1803 voodoofb_i2c_send_start(void *cookie, int flags) 1804 { 1805 return (i2c_bitbang_send_start(cookie, flags, &voodoofb_i2cbb_ops)); 1806 } 1807 1808 static int 1809 voodoofb_i2c_send_stop(void *cookie, int flags) 1810 { 1811 1812 return (i2c_bitbang_send_stop(cookie, flags, &voodoofb_i2cbb_ops)); 1813 } 1814 1815 static int 1816 voodoofb_i2c_initiate_xfer(void *cookie, i2c_addr_t addr, int flags) 1817 { 1818 1819 return (i2c_bitbang_initiate_xfer(cookie, addr, flags, 1820 &voodoofb_i2cbb_ops)); 1821 } 1822 1823 static int 1824 voodoofb_i2c_read_byte(void *cookie, uint8_t *valp, int flags) 1825 { 1826 return (i2c_bitbang_read_byte(cookie, valp, flags, &voodoofb_i2cbb_ops)); 1827 } 1828 1829 static int 1830 voodoofb_i2c_write_byte(void *cookie, uint8_t val, int flags) 1831 { 1832 return (i2c_bitbang_write_byte(cookie, val, flags, &voodoofb_i2cbb_ops)); 1833 } 1834 1835 /* glyph cache */ 1836 static void 1837 voodoofb_init_glyphcache(struct voodoofb_softc *sc, struct rasops_info *ri) 1838 { 1839 int bufsize, i; 1840 1841 if (sc->sc_numglyphs != 0) { 1842 /* re-initialize */ 1843 if (ri->ri_font == sc->sc_font) { 1844 /* nothing to do, keep using the same cache */ 1845 return; 1846 } 1847 } 1848 sc->sc_cache = (ri->ri_width * ri->ri_stride + 3) & 0xfffffffc; 1849 bufsize = sc->sc_memsize - sc->sc_cache; 1850 sc->sc_numglyphs = bufsize / ri->ri_fontscale; 1851 sc->sc_usedglyphs = 0; 1852 for (i = 0; i < 256; i++) { 1853 sc->sc_glyphs_kernattr[i] = 0; 1854 sc->sc_glyphs_defattr[i] = 0; 1855 } 1856 sc->sc_fmt = ri->ri_font->fontwidth | FMT_8BIT; 1857 } 1858