1 /*- 2 * Copyright (c) 1998 Kazutaka YOKOTA and Michael Smith 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer as 10 * the first lines of this file unmodified. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #include <sys/cdefs.h> 28 __FBSDID("$FreeBSD$"); 29 30 #include "opt_vga.h" 31 #include "opt_vesa.h" 32 33 #ifndef VGA_NO_MODE_CHANGE 34 35 #include <sys/param.h> 36 #include <sys/bus.h> 37 #include <sys/systm.h> 38 #include <sys/kernel.h> 39 #include <sys/module.h> 40 #include <sys/malloc.h> 41 #include <sys/fbio.h> 42 43 #include <vm/vm.h> 44 #include <vm/vm_extern.h> 45 #include <vm/vm_kern.h> 46 #include <vm/vm_param.h> 47 #include <vm/pmap.h> 48 49 #include <machine/pc/bios.h> 50 #include <dev/fb/vesa.h> 51 52 #include <dev/fb/fbreg.h> 53 #include <dev/fb/vgareg.h> 54 55 #include <dev/pci/pcivar.h> 56 57 #include <isa/isareg.h> 58 59 #include <compat/x86bios/x86bios.h> 60 61 #define VESA_VIA_CLE266 "VIA CLE266\r\n" 62 63 #ifndef VESA_DEBUG 64 #define VESA_DEBUG 0 65 #endif 66 67 /* VESA video adapter state buffer stub */ 68 struct adp_state { 69 int sig; 70 #define V_STATE_SIG 0x61736576 71 u_char regs[1]; 72 }; 73 typedef struct adp_state adp_state_t; 74 75 /* VESA video adapter */ 76 static video_adapter_t *vesa_adp = NULL; 77 static ssize_t vesa_state_buf_size = -1; 78 79 /* VESA functions */ 80 #if 0 81 static int vesa_nop(void); 82 #endif 83 static int vesa_error(void); 84 static vi_probe_t vesa_probe; 85 static vi_init_t vesa_init; 86 static vi_get_info_t vesa_get_info; 87 static vi_query_mode_t vesa_query_mode; 88 static vi_set_mode_t vesa_set_mode; 89 static vi_save_font_t vesa_save_font; 90 static vi_load_font_t vesa_load_font; 91 static vi_show_font_t vesa_show_font; 92 static vi_save_palette_t vesa_save_palette; 93 static vi_load_palette_t vesa_load_palette; 94 static vi_set_border_t vesa_set_border; 95 static vi_save_state_t vesa_save_state; 96 static vi_load_state_t vesa_load_state; 97 static vi_set_win_org_t vesa_set_origin; 98 static vi_read_hw_cursor_t vesa_read_hw_cursor; 99 static vi_set_hw_cursor_t vesa_set_hw_cursor; 100 static vi_set_hw_cursor_shape_t vesa_set_hw_cursor_shape; 101 static vi_blank_display_t vesa_blank_display; 102 static vi_mmap_t vesa_mmap; 103 static vi_ioctl_t vesa_ioctl; 104 static vi_clear_t vesa_clear; 105 static vi_fill_rect_t vesa_fill_rect; 106 static vi_bitblt_t vesa_bitblt; 107 static vi_diag_t vesa_diag; 108 static int vesa_bios_info(int level); 109 110 static video_switch_t vesavidsw = { 111 vesa_probe, 112 vesa_init, 113 vesa_get_info, 114 vesa_query_mode, 115 vesa_set_mode, 116 vesa_save_font, 117 vesa_load_font, 118 vesa_show_font, 119 vesa_save_palette, 120 vesa_load_palette, 121 vesa_set_border, 122 vesa_save_state, 123 vesa_load_state, 124 vesa_set_origin, 125 vesa_read_hw_cursor, 126 vesa_set_hw_cursor, 127 vesa_set_hw_cursor_shape, 128 vesa_blank_display, 129 vesa_mmap, 130 vesa_ioctl, 131 vesa_clear, 132 vesa_fill_rect, 133 vesa_bitblt, 134 vesa_error, 135 vesa_error, 136 vesa_diag, 137 }; 138 139 static video_switch_t *prevvidsw; 140 141 /* VESA BIOS video modes */ 142 #define VESA_MAXMODES 64 143 #define EOT (-1) 144 #define NA (-2) 145 146 #define MODE_TABLE_DELTA 8 147 148 static int vesa_vmode_max = 0; 149 static video_info_t vesa_vmode_empty = { EOT }; 150 static video_info_t *vesa_vmode = &vesa_vmode_empty; 151 152 static int vesa_init_done = FALSE; 153 static int has_vesa_bios = FALSE; 154 static struct vesa_info *vesa_adp_info = NULL; 155 static u_int16_t *vesa_vmodetab = NULL; 156 static char *vesa_oemstr = NULL; 157 static char *vesa_venderstr = NULL; 158 static char *vesa_prodstr = NULL; 159 static char *vesa_revstr = NULL; 160 161 /* local macros and functions */ 162 #define BIOS_SADDRTOLADDR(p) ((((p) & 0xffff0000) >> 12) + ((p) & 0x0000ffff)) 163 164 static int int10_set_mode(int mode); 165 static int vesa_bios_post(void); 166 static int vesa_bios_get_mode(int mode, struct vesa_mode *vmode); 167 static int vesa_bios_set_mode(int mode); 168 static int vesa_bios_get_dac(void); 169 static int vesa_bios_set_dac(int bits); 170 static int vesa_bios_save_palette(int start, int colors, u_char *palette, 171 int bits); 172 static int vesa_bios_save_palette2(int start, int colors, u_char *r, u_char *g, 173 u_char *b, int bits); 174 static int vesa_bios_load_palette(int start, int colors, u_char *palette, 175 int bits); 176 static int vesa_bios_load_palette2(int start, int colors, u_char *r, u_char *g, 177 u_char *b, int bits); 178 #define STATE_SIZE 0 179 #define STATE_SAVE 1 180 #define STATE_LOAD 2 181 #define STATE_HW (1<<0) 182 #define STATE_DATA (1<<1) 183 #define STATE_DAC (1<<2) 184 #define STATE_REG (1<<3) 185 #define STATE_MOST (STATE_HW | STATE_DATA | STATE_REG) 186 #define STATE_ALL (STATE_HW | STATE_DATA | STATE_DAC | STATE_REG) 187 static ssize_t vesa_bios_state_buf_size(void); 188 static int vesa_bios_save_restore(int code, void *p, size_t size); 189 static int vesa_bios_get_line_length(void); 190 static int vesa_bios_set_line_length(int pixel, int *bytes, int *lines); 191 #if 0 192 static int vesa_bios_get_start(int *x, int *y); 193 #endif 194 static int vesa_bios_set_start(int x, int y); 195 static int vesa_map_gen_mode_num(int type, int color, int mode); 196 static int vesa_translate_flags(u_int16_t vflags); 197 static int vesa_translate_mmodel(u_int8_t vmodel); 198 static int vesa_get_line_width(video_info_t *info); 199 static int vesa_bios_init(void); 200 static void vesa_clear_modes(video_info_t *info, int color); 201 static vm_offset_t vesa_map_buffer(u_int paddr, size_t size); 202 static void vesa_unmap_buffer(vm_offset_t vaddr, size_t size); 203 204 #if 0 205 static int vesa_get_origin(video_adapter_t *adp, off_t *offset); 206 #endif 207 208 static void 209 dump_buffer(u_char *buf, size_t len) 210 { 211 int i; 212 213 for(i = 0; i < len;) { 214 printf("%02x ", buf[i]); 215 if ((++i % 16) == 0) 216 printf("\n"); 217 } 218 } 219 220 /* INT 10 BIOS calls */ 221 static int 222 int10_set_mode(int mode) 223 { 224 x86regs_t regs; 225 226 x86bios_init_regs(®s); 227 regs.R_AL = mode; 228 229 x86bios_intr(®s, 0x10); 230 231 return (0); 232 } 233 234 static int 235 vesa_bios_post(void) 236 { 237 x86regs_t regs; 238 devclass_t dc; 239 device_t *devs; 240 device_t dev; 241 int count, i, is_pci; 242 243 if (x86bios_get_orm(0xc0000) == NULL) 244 return (1); 245 246 dev = NULL; 247 is_pci = 0; 248 249 /* Find the matching PCI video controller. */ 250 dc = devclass_find("vgapci"); 251 if (dc != NULL && devclass_get_devices(dc, &devs, &count) == 0) { 252 for (dev = NULL, i = 0; dev == NULL && i < count; devs++, i++) 253 if (device_get_flags(*devs) != 0 && 254 x86bios_match_device(0xc0000, *devs)) { 255 dev = *devs; 256 is_pci = 1; 257 break; 258 } 259 free(devs, M_TEMP); 260 } 261 262 /* Try VGA if a PCI device is not found. */ 263 if (dev == NULL) { 264 dc = devclass_find(VGA_DRIVER_NAME); 265 if (dc != NULL) 266 dev = devclass_get_device(dc, 0); 267 } 268 269 if (bootverbose) 270 printf("%s: calling BIOS POST\n", 271 dev == NULL ? "VESA" : device_get_nameunit(dev)); 272 273 x86bios_init_regs(®s); 274 if (is_pci) { 275 regs.R_AH = pci_get_bus(dev); 276 regs.R_AL = (pci_get_slot(dev) << 3) | 277 (pci_get_function(dev) & 0x07); 278 } 279 regs.R_DL = 0x80; 280 x86bios_call(®s, 0xc000, 0x0003); 281 282 if (x86bios_get_intr(0x10) == 0) 283 return (1); 284 285 return (0); 286 } 287 288 /* VESA BIOS calls */ 289 static int 290 vesa_bios_get_mode(int mode, struct vesa_mode *vmode) 291 { 292 x86regs_t regs; 293 uint32_t offs; 294 void *buf; 295 296 buf = x86bios_alloc(&offs, sizeof(*vmode)); 297 if (buf == NULL) 298 return (1); 299 300 x86bios_init_regs(®s); 301 regs.R_AX = 0x4f01; 302 regs.R_CX = mode; 303 304 regs.R_ES = X86BIOS_PHYSTOSEG(offs); 305 regs.R_DI = X86BIOS_PHYSTOOFF(offs); 306 307 x86bios_intr(®s, 0x10); 308 309 if (regs.R_AX != 0x004f) { 310 x86bios_free(buf, sizeof(*vmode)); 311 return (1); 312 } 313 314 bcopy(buf, vmode, sizeof(*vmode)); 315 x86bios_free(buf, sizeof(*vmode)); 316 317 return (0); 318 } 319 320 static int 321 vesa_bios_set_mode(int mode) 322 { 323 x86regs_t regs; 324 325 x86bios_init_regs(®s); 326 regs.R_AX = 0x4f02; 327 regs.R_BX = mode; 328 329 x86bios_intr(®s, 0x10); 330 331 return (regs.R_AX != 0x004f); 332 } 333 334 static int 335 vesa_bios_get_dac(void) 336 { 337 x86regs_t regs; 338 339 x86bios_init_regs(®s); 340 regs.R_AX = 0x4f08; 341 regs.R_BL = 1; 342 343 x86bios_intr(®s, 0x10); 344 345 if (regs.R_AX != 0x004f) 346 return (6); 347 348 return (regs.R_BH); 349 } 350 351 static int 352 vesa_bios_set_dac(int bits) 353 { 354 x86regs_t regs; 355 356 x86bios_init_regs(®s); 357 regs.R_AX = 0x4f08; 358 /* regs.R_BL = 0; */ 359 regs.R_BH = bits; 360 361 x86bios_intr(®s, 0x10); 362 363 if (regs.R_AX != 0x004f) 364 return (6); 365 366 return (regs.R_BH); 367 } 368 369 static int 370 vesa_bios_save_palette(int start, int colors, u_char *palette, int bits) 371 { 372 x86regs_t regs; 373 uint32_t offs; 374 u_char *p; 375 int i; 376 377 p = (u_char *)x86bios_alloc(&offs, colors * 4); 378 if (p == NULL) 379 return (1); 380 381 x86bios_init_regs(®s); 382 regs.R_AX = 0x4f09; 383 regs.R_BL = 1; 384 regs.R_CX = colors; 385 regs.R_DX = start; 386 387 regs.R_ES = X86BIOS_PHYSTOSEG(offs); 388 regs.R_DI = X86BIOS_PHYSTOOFF(offs); 389 390 x86bios_intr(®s, 0x10); 391 392 if (regs.R_AX != 0x004f) { 393 x86bios_free(p, colors * 4); 394 return (1); 395 } 396 397 bits = 8 - bits; 398 for (i = 0; i < colors; ++i) { 399 palette[i * 3] = p[i * 4 + 2] << bits; 400 palette[i * 3 + 1] = p[i * 4 + 1] << bits; 401 palette[i * 3 + 2] = p[i * 4] << bits; 402 } 403 x86bios_free(p, colors * 4); 404 405 return (0); 406 } 407 408 static int 409 vesa_bios_save_palette2(int start, int colors, u_char *r, u_char *g, u_char *b, 410 int bits) 411 { 412 x86regs_t regs; 413 uint32_t offs; 414 u_char *p; 415 int i; 416 417 p = (u_char *)x86bios_alloc(&offs, colors * 4); 418 if (p == NULL) 419 return (1); 420 421 x86bios_init_regs(®s); 422 regs.R_AX = 0x4f09; 423 regs.R_BL = 1; 424 regs.R_CX = colors; 425 regs.R_DX = start; 426 427 regs.R_ES = X86BIOS_PHYSTOSEG(offs); 428 regs.R_DI = X86BIOS_PHYSTOOFF(offs); 429 430 x86bios_intr(®s, 0x10); 431 432 if (regs.R_AX != 0x004f) { 433 x86bios_free(p, colors * 4); 434 return (1); 435 } 436 437 bits = 8 - bits; 438 for (i = 0; i < colors; ++i) { 439 r[i] = p[i * 4 + 2] << bits; 440 g[i] = p[i * 4 + 1] << bits; 441 b[i] = p[i * 4] << bits; 442 } 443 x86bios_free(p, colors * 4); 444 445 return (0); 446 } 447 448 static int 449 vesa_bios_load_palette(int start, int colors, u_char *palette, int bits) 450 { 451 x86regs_t regs; 452 uint32_t offs; 453 u_char *p; 454 int i; 455 456 p = (u_char *)x86bios_alloc(&offs, colors * 4); 457 if (p == NULL) 458 return (1); 459 460 x86bios_init_regs(®s); 461 regs.R_AX = 0x4f09; 462 /* regs.R_BL = 0; */ 463 regs.R_CX = colors; 464 regs.R_DX = start; 465 466 regs.R_ES = X86BIOS_PHYSTOSEG(offs); 467 regs.R_DI = X86BIOS_PHYSTOOFF(offs); 468 469 bits = 8 - bits; 470 for (i = 0; i < colors; ++i) { 471 p[i * 4] = palette[i * 3 + 2] >> bits; 472 p[i * 4 + 1] = palette[i * 3 + 1] >> bits; 473 p[i * 4 + 2] = palette[i * 3] >> bits; 474 p[i * 4 + 3] = 0; 475 } 476 x86bios_intr(®s, 0x10); 477 x86bios_free(p, colors * 4); 478 479 return (regs.R_AX != 0x004f); 480 } 481 482 static int 483 vesa_bios_load_palette2(int start, int colors, u_char *r, u_char *g, u_char *b, 484 int bits) 485 { 486 x86regs_t regs; 487 uint32_t offs; 488 u_char *p; 489 int i; 490 491 p = (u_char *)x86bios_alloc(&offs, colors * 4); 492 if (p == NULL) 493 return (1); 494 495 x86bios_init_regs(®s); 496 regs.R_AX = 0x4f09; 497 /* regs.R_BL = 0; */ 498 regs.R_CX = colors; 499 regs.R_DX = start; 500 501 regs.R_ES = X86BIOS_PHYSTOSEG(offs); 502 regs.R_DI = X86BIOS_PHYSTOOFF(offs); 503 504 bits = 8 - bits; 505 for (i = 0; i < colors; ++i) { 506 p[i * 4] = b[i] >> bits; 507 p[i * 4 + 1] = g[i] >> bits; 508 p[i * 4 + 2] = r[i] >> bits; 509 p[i * 4 + 3] = 0; 510 } 511 x86bios_intr(®s, 0x10); 512 x86bios_free(p, colors * 4); 513 514 return (regs.R_AX != 0x004f); 515 } 516 517 static ssize_t 518 vesa_bios_state_buf_size(void) 519 { 520 x86regs_t regs; 521 522 x86bios_init_regs(®s); 523 regs.R_AX = 0x4f04; 524 /* regs.R_DL = STATE_SIZE; */ 525 regs.R_CX = STATE_ALL; 526 527 x86bios_intr(®s, 0x10); 528 529 if (regs.R_AX != 0x004f) 530 return (0); 531 532 return (regs.R_BX * 64); 533 } 534 535 static int 536 vesa_bios_save_restore(int code, void *p, size_t size) 537 { 538 x86regs_t regs; 539 uint32_t offs; 540 void *buf; 541 542 if (code != STATE_SAVE && code != STATE_LOAD) 543 return (1); 544 545 buf = x86bios_alloc(&offs, size); 546 547 x86bios_init_regs(®s); 548 regs.R_AX = 0x4f04; 549 regs.R_DL = code; 550 regs.R_CX = STATE_ALL; 551 552 regs.R_ES = X86BIOS_PHYSTOSEG(offs); 553 regs.R_BX = X86BIOS_PHYSTOOFF(offs); 554 555 switch (code) { 556 case STATE_SAVE: 557 x86bios_intr(®s, 0x10); 558 bcopy(buf, p, size); 559 break; 560 case STATE_LOAD: 561 bcopy(p, buf, size); 562 x86bios_intr(®s, 0x10); 563 break; 564 } 565 x86bios_free(buf, size); 566 567 return (regs.R_AX != 0x004f); 568 } 569 570 static int 571 vesa_bios_get_line_length(void) 572 { 573 x86regs_t regs; 574 575 x86bios_init_regs(®s); 576 regs.R_AX = 0x4f06; 577 regs.R_BL = 1; 578 579 x86bios_intr(®s, 0x10); 580 581 if (regs.R_AX != 0x004f) 582 return (-1); 583 584 return (regs.R_BX); 585 } 586 587 static int 588 vesa_bios_set_line_length(int pixel, int *bytes, int *lines) 589 { 590 x86regs_t regs; 591 592 x86bios_init_regs(®s); 593 regs.R_AX = 0x4f06; 594 /* regs.R_BL = 0; */ 595 regs.R_CX = pixel; 596 597 x86bios_intr(®s, 0x10); 598 599 #if VESA_DEBUG > 1 600 printf("bx:%d, cx:%d, dx:%d\n", regs.R_BX, regs.R_CX, regs.R_DX); 601 #endif 602 if (regs.R_AX != 0x004f) 603 return (-1); 604 605 if (bytes != NULL) 606 *bytes = regs.R_BX; 607 if (lines != NULL) 608 *lines = regs.R_DX; 609 610 return (0); 611 } 612 613 #if 0 614 static int 615 vesa_bios_get_start(int *x, int *y) 616 { 617 x86regs_t regs; 618 619 x86bios_init_regs(®s); 620 regs.R_AX = 0x4f07; 621 regs.R_BL = 1; 622 623 x86bios_intr(®s, 0x10); 624 625 if (regs.R_AX != 0x004f) 626 return (-1); 627 628 *x = regs.R_CX; 629 *y = regs.R_DX; 630 631 return (0); 632 } 633 #endif 634 635 static int 636 vesa_bios_set_start(int x, int y) 637 { 638 x86regs_t regs; 639 640 x86bios_init_regs(®s); 641 regs.R_AX = 0x4f07; 642 regs.R_BL = 0x80; 643 regs.R_CX = x; 644 regs.R_DX = y; 645 646 x86bios_intr(®s, 0x10); 647 648 return (regs.R_AX != 0x004f); 649 } 650 651 /* map a generic video mode to a known mode */ 652 static int 653 vesa_map_gen_mode_num(int type, int color, int mode) 654 { 655 static struct { 656 int from; 657 int to; 658 } mode_map[] = { 659 { M_TEXT_132x25, M_VESA_C132x25 }, 660 { M_TEXT_132x43, M_VESA_C132x43 }, 661 { M_TEXT_132x50, M_VESA_C132x50 }, 662 { M_TEXT_132x60, M_VESA_C132x60 }, 663 }; 664 int i; 665 666 for (i = 0; i < sizeof(mode_map)/sizeof(mode_map[0]); ++i) { 667 if (mode_map[i].from == mode) 668 return (mode_map[i].to); 669 } 670 return (mode); 671 } 672 673 static int 674 vesa_translate_flags(u_int16_t vflags) 675 { 676 static struct { 677 u_int16_t mask; 678 int set; 679 int reset; 680 } ftable[] = { 681 { V_MODECOLOR, V_INFO_COLOR, 0 }, 682 { V_MODEGRAPHICS, V_INFO_GRAPHICS, 0 }, 683 { V_MODELFB, V_INFO_LINEAR, 0 }, 684 { V_MODENONVGA, V_INFO_NONVGA, 0 }, 685 }; 686 int flags; 687 int i; 688 689 for (flags = 0, i = 0; i < sizeof(ftable)/sizeof(ftable[0]); ++i) { 690 flags |= (vflags & ftable[i].mask) ? 691 ftable[i].set : ftable[i].reset; 692 } 693 return (flags); 694 } 695 696 static int 697 vesa_translate_mmodel(u_int8_t vmodel) 698 { 699 static struct { 700 u_int8_t vmodel; 701 int mmodel; 702 } mtable[] = { 703 { V_MMTEXT, V_INFO_MM_TEXT }, 704 { V_MMCGA, V_INFO_MM_CGA }, 705 { V_MMHGC, V_INFO_MM_HGC }, 706 { V_MMEGA, V_INFO_MM_PLANAR }, 707 { V_MMPACKED, V_INFO_MM_PACKED }, 708 { V_MMDIRCOLOR, V_INFO_MM_DIRECT }, 709 }; 710 int i; 711 712 for (i = 0; mtable[i].mmodel >= 0; ++i) { 713 if (mtable[i].vmodel == vmodel) 714 return (mtable[i].mmodel); 715 } 716 return (V_INFO_MM_OTHER); 717 } 718 719 static int 720 vesa_get_line_width(video_info_t *info) 721 { 722 int len; 723 int width; 724 725 width = info->vi_width; 726 727 if (info->vi_flags & V_INFO_GRAPHICS) 728 switch (info->vi_depth / info->vi_planes) { 729 case 1: 730 return (width / 8); 731 case 2: 732 return (width / 4); 733 case 4: 734 return (width / 2); 735 case 8: 736 return (width); 737 case 15: 738 case 16: 739 return (width * 2); 740 case 24: 741 case 32: 742 return (width * 4); 743 } 744 745 len = vesa_bios_get_line_length(); 746 747 return (len > 0 ? len : width); 748 } 749 750 #define VESA_MAXSTR 256 751 752 #define VESA_STRCPY(dst, src) do { \ 753 char *str; \ 754 int i; \ 755 dst = malloc(VESA_MAXSTR, M_DEVBUF, M_WAITOK); \ 756 str = x86bios_offset(BIOS_SADDRTOLADDR(src)); \ 757 for (i = 0; i < VESA_MAXSTR - 1 && str[i] != '\0'; i++) \ 758 dst[i] = str[i]; \ 759 dst[i] = '\0'; \ 760 } while (0) 761 762 static int 763 vesa_bios_init(void) 764 { 765 static struct vesa_info buf; 766 struct vesa_mode vmode; 767 video_info_t *p; 768 x86regs_t regs; 769 size_t bsize; 770 void *vmbuf; 771 uint32_t offs; 772 uint16_t vers; 773 int is_via_cle266; 774 int modes; 775 int i; 776 777 if (vesa_init_done) 778 return (0); 779 780 has_vesa_bios = FALSE; 781 vesa_adp_info = NULL; 782 vesa_vmode_max = 0; 783 vesa_vmode[0].vi_mode = EOT; 784 785 /* 786 * If the VBE real mode interrupt vector is not found, try BIOS POST. 787 */ 788 if (x86bios_get_intr(0x10) == 0) { 789 if (vesa_bios_post() != 0) 790 return (1); 791 if (bootverbose) { 792 offs = x86bios_get_intr(0x10); 793 printf("VESA: interrupt vector installed (0x%x)\n", 794 BIOS_SADDRTOLADDR(offs)); 795 } 796 } 797 798 x86bios_init_regs(®s); 799 regs.R_AX = 0x4f00; 800 801 vmbuf = x86bios_alloc(&offs, sizeof(buf)); 802 if (vmbuf == NULL) 803 return (1); 804 805 regs.R_ES = X86BIOS_PHYSTOSEG(offs); 806 regs.R_DI = X86BIOS_PHYSTOOFF(offs); 807 808 bcopy("VBE2", vmbuf, 4); /* try for VBE2 data */ 809 x86bios_intr(®s, 0x10); 810 811 if (regs.R_AX != 0x004f || bcmp("VESA", vmbuf, 4) != 0) 812 goto fail; 813 814 bcopy(vmbuf, &buf, sizeof(buf)); 815 816 vesa_adp_info = &buf; 817 if (bootverbose) { 818 printf("VESA: information block\n"); 819 dump_buffer((u_char *)&buf, sizeof(buf)); 820 } 821 822 vers = buf.v_version = le16toh(buf.v_version); 823 buf.v_oemstr = le32toh(buf.v_oemstr); 824 buf.v_flags = le32toh(buf.v_flags); 825 buf.v_modetable = le32toh(buf.v_modetable); 826 buf.v_memsize = le16toh(buf.v_memsize); 827 buf.v_revision = le16toh(buf.v_revision); 828 buf.v_venderstr = le32toh(buf.v_venderstr); 829 buf.v_prodstr = le32toh(buf.v_prodstr); 830 buf.v_revstr = le32toh(buf.v_revstr); 831 832 if (vers < 0x0102) { 833 printf("VESA: VBE version %d.%d is not supported; " 834 "version 1.2 or later is required.\n", 835 ((vers & 0xf000) >> 12) * 10 + ((vers & 0x0f00) >> 8), 836 ((vers & 0x00f0) >> 4) * 10 + (vers & 0x000f)); 837 return (1); 838 } 839 840 VESA_STRCPY(vesa_oemstr, buf.v_oemstr); 841 if (vers >= 0x0200) { 842 VESA_STRCPY(vesa_venderstr, buf.v_venderstr); 843 VESA_STRCPY(vesa_prodstr, buf.v_prodstr); 844 VESA_STRCPY(vesa_revstr, buf.v_revstr); 845 } 846 is_via_cle266 = strncmp(vesa_oemstr, VESA_VIA_CLE266, 847 sizeof(VESA_VIA_CLE266)) == 0; 848 849 if (buf.v_modetable == 0) 850 goto fail; 851 852 vesa_vmodetab = x86bios_offset(BIOS_SADDRTOLADDR(buf.v_modetable)); 853 854 for (i = 0, modes = 0; 855 (i < (M_VESA_MODE_MAX - M_VESA_BASE + 1)) 856 && (vesa_vmodetab[i] != 0xffff); ++i) { 857 vesa_vmodetab[i] = le16toh(vesa_vmodetab[i]); 858 if (vesa_bios_get_mode(vesa_vmodetab[i], &vmode)) 859 continue; 860 861 vmode.v_modeattr = le16toh(vmode.v_modeattr); 862 vmode.v_wgran = le16toh(vmode.v_wgran); 863 vmode.v_wsize = le16toh(vmode.v_wsize); 864 vmode.v_waseg = le16toh(vmode.v_waseg); 865 vmode.v_wbseg = le16toh(vmode.v_wbseg); 866 vmode.v_posfunc = le32toh(vmode.v_posfunc); 867 vmode.v_bpscanline = le16toh(vmode.v_bpscanline); 868 vmode.v_width = le16toh(vmode.v_width); 869 vmode.v_height = le16toh(vmode.v_height); 870 vmode.v_lfb = le32toh(vmode.v_lfb); 871 vmode.v_offscreen = le32toh(vmode.v_offscreen); 872 vmode.v_offscreensize = le16toh(vmode.v_offscreensize); 873 vmode.v_linbpscanline = le16toh(vmode.v_linbpscanline); 874 vmode.v_maxpixelclock = le32toh(vmode.v_maxpixelclock); 875 876 /* reject unsupported modes */ 877 #if 0 878 if ((vmode.v_modeattr & (V_MODESUPP | V_MODEOPTINFO 879 | V_MODENONVGA)) 880 != (V_MODESUPP | V_MODEOPTINFO)) 881 continue; 882 #else 883 if ((vmode.v_modeattr & V_MODEOPTINFO) == 0) { 884 #if VESA_DEBUG > 1 885 printf( 886 "Rejecting VESA %s mode: %d x %d x %d bpp attr = %x\n", 887 vmode.v_modeattr & V_MODEGRAPHICS ? "graphics" : "text", 888 vmode.v_width, vmode.v_height, vmode.v_bpp, 889 vmode.v_modeattr); 890 #endif 891 continue; 892 } 893 #endif 894 895 /* expand the array if necessary */ 896 if (modes >= vesa_vmode_max) { 897 vesa_vmode_max += MODE_TABLE_DELTA; 898 p = malloc(sizeof(*vesa_vmode)*(vesa_vmode_max + 1), 899 M_DEVBUF, M_WAITOK); 900 #if VESA_DEBUG > 1 901 printf("vesa_bios_init(): modes:%d, vesa_mode_max:%d\n", 902 modes, vesa_vmode_max); 903 #endif 904 if (modes > 0) { 905 bcopy(vesa_vmode, p, sizeof(*vesa_vmode)*modes); 906 free(vesa_vmode, M_DEVBUF); 907 } 908 vesa_vmode = p; 909 } 910 911 #if VESA_DEBUG > 1 912 printf("Found VESA %s mode: %d x %d x %d bpp\n", 913 vmode.v_modeattr & V_MODEGRAPHICS ? "graphics" : "text", 914 vmode.v_width, vmode.v_height, vmode.v_bpp); 915 #endif 916 if (is_via_cle266) { 917 if ((vmode.v_width & 0xff00) >> 8 == vmode.v_height - 1) { 918 vmode.v_width &= 0xff; 919 vmode.v_waseg = 0xb8000 >> 4; 920 } 921 } 922 923 /* copy some fields */ 924 bzero(&vesa_vmode[modes], sizeof(vesa_vmode[modes])); 925 vesa_vmode[modes].vi_mode = vesa_vmodetab[i]; 926 vesa_vmode[modes].vi_width = vmode.v_width; 927 vesa_vmode[modes].vi_height = vmode.v_height; 928 vesa_vmode[modes].vi_depth = vmode.v_bpp; 929 vesa_vmode[modes].vi_planes = vmode.v_planes; 930 vesa_vmode[modes].vi_cwidth = vmode.v_cwidth; 931 vesa_vmode[modes].vi_cheight = vmode.v_cheight; 932 vesa_vmode[modes].vi_window = (u_int)vmode.v_waseg << 4; 933 /* XXX window B */ 934 vesa_vmode[modes].vi_window_size = vmode.v_wsize*1024; 935 vesa_vmode[modes].vi_window_gran = vmode.v_wgran*1024; 936 if (vmode.v_modeattr & V_MODELFB) 937 vesa_vmode[modes].vi_buffer = vmode.v_lfb; 938 else 939 vesa_vmode[modes].vi_buffer = 0; 940 /* XXX */ 941 vesa_vmode[modes].vi_buffer_size 942 = vesa_adp_info->v_memsize*64*1024; 943 #if 0 944 if (vmode.v_offscreen > vmode.v_lfb) 945 vesa_vmode[modes].vi_buffer_size 946 = vmode.v_offscreen + vmode.v_offscreensize*1024 947 - vmode.v_lfb; 948 else 949 vesa_vmode[modes].vi_buffer_size 950 = vmode.v_offscreen + vmode.v_offscreensize * 1024; 951 #endif 952 vesa_vmode[modes].vi_mem_model 953 = vesa_translate_mmodel(vmode.v_memmodel); 954 vesa_vmode[modes].vi_pixel_fields[0] = 0; 955 vesa_vmode[modes].vi_pixel_fields[1] = 0; 956 vesa_vmode[modes].vi_pixel_fields[2] = 0; 957 vesa_vmode[modes].vi_pixel_fields[3] = 0; 958 vesa_vmode[modes].vi_pixel_fsizes[0] = 0; 959 vesa_vmode[modes].vi_pixel_fsizes[1] = 0; 960 vesa_vmode[modes].vi_pixel_fsizes[2] = 0; 961 vesa_vmode[modes].vi_pixel_fsizes[3] = 0; 962 if (vesa_vmode[modes].vi_mem_model == V_INFO_MM_PACKED) { 963 vesa_vmode[modes].vi_pixel_size = (vmode.v_bpp + 7)/8; 964 } else if (vesa_vmode[modes].vi_mem_model == V_INFO_MM_DIRECT) { 965 vesa_vmode[modes].vi_pixel_size = (vmode.v_bpp + 7)/8; 966 vesa_vmode[modes].vi_pixel_fields[0] 967 = vmode.v_redfieldpos; 968 vesa_vmode[modes].vi_pixel_fields[1] 969 = vmode.v_greenfieldpos; 970 vesa_vmode[modes].vi_pixel_fields[2] 971 = vmode.v_bluefieldpos; 972 vesa_vmode[modes].vi_pixel_fields[3] 973 = vmode.v_resfieldpos; 974 vesa_vmode[modes].vi_pixel_fsizes[0] 975 = vmode.v_redmasksize; 976 vesa_vmode[modes].vi_pixel_fsizes[1] 977 = vmode.v_greenmasksize; 978 vesa_vmode[modes].vi_pixel_fsizes[2] 979 = vmode.v_bluemasksize; 980 vesa_vmode[modes].vi_pixel_fsizes[3] 981 = vmode.v_resmasksize; 982 } else { 983 vesa_vmode[modes].vi_pixel_size = 0; 984 } 985 986 vesa_vmode[modes].vi_flags 987 = vesa_translate_flags(vmode.v_modeattr) | V_INFO_VESA; 988 989 /* Does it have enough memory to support this mode? */ 990 bsize = vesa_get_line_width(&vesa_vmode[modes]); 991 bsize *= vesa_vmode[modes].vi_height; 992 if (bsize > vesa_vmode[modes].vi_buffer_size) { 993 #if VESA_DEBUG > 1 994 printf( 995 "Rejecting VESA %s mode: %d x %d x %d bpp attr = %x, not enough memory\n", 996 (vmode.v_modeattr & V_MODEGRAPHICS) != 0 ? "graphics" : "text", 997 vmode.v_width, vmode.v_height, vmode.v_bpp, vmode.v_modeattr); 998 #endif 999 continue; 1000 } 1001 1002 ++modes; 1003 } 1004 vesa_vmode[modes].vi_mode = EOT; 1005 1006 if (bootverbose) 1007 printf("VESA: %d mode(s) found\n", modes); 1008 1009 has_vesa_bios = (modes > 0); 1010 if (!has_vesa_bios) 1011 goto fail; 1012 1013 x86bios_free(vmbuf, sizeof(buf)); 1014 return (0); 1015 1016 fail: 1017 if (vmbuf != NULL) 1018 x86bios_free(vmbuf, sizeof(buf)); 1019 if (vesa_oemstr != NULL) { 1020 free(vesa_oemstr, M_DEVBUF); 1021 vesa_oemstr = NULL; 1022 } 1023 if (vesa_venderstr != NULL) { 1024 free(vesa_venderstr, M_DEVBUF); 1025 vesa_venderstr = NULL; 1026 } 1027 if (vesa_prodstr != NULL) { 1028 free(vesa_prodstr, M_DEVBUF); 1029 vesa_prodstr = NULL; 1030 } 1031 if (vesa_revstr != NULL) { 1032 free(vesa_revstr, M_DEVBUF); 1033 vesa_revstr = NULL; 1034 } 1035 return (1); 1036 } 1037 1038 static void 1039 vesa_clear_modes(video_info_t *info, int color) 1040 { 1041 while (info->vi_mode != EOT) { 1042 if ((info->vi_flags & V_INFO_COLOR) != color) 1043 info->vi_mode = NA; 1044 ++info; 1045 } 1046 } 1047 1048 static vm_offset_t 1049 vesa_map_buffer(u_int paddr, size_t size) 1050 { 1051 vm_offset_t vaddr; 1052 u_int off; 1053 1054 off = paddr - trunc_page(paddr); 1055 vaddr = (vm_offset_t)pmap_mapdev_attr(paddr - off, size + off, 1056 PAT_WRITE_COMBINING); 1057 #if VESA_DEBUG > 1 1058 printf("vesa_map_buffer: paddr:%x vaddr:%tx size:%zx off:%x\n", 1059 paddr, vaddr, size, off); 1060 #endif 1061 return (vaddr + off); 1062 } 1063 1064 static void 1065 vesa_unmap_buffer(vm_offset_t vaddr, size_t size) 1066 { 1067 #if VESA_DEBUG > 1 1068 printf("vesa_unmap_buffer: vaddr:%tx size:%zx\n", vaddr, size); 1069 #endif 1070 kmem_free(kernel_map, vaddr, size); 1071 } 1072 1073 /* entry points */ 1074 1075 static int 1076 vesa_configure(int flags) 1077 { 1078 video_adapter_t *adp; 1079 int adapters; 1080 int error; 1081 int i; 1082 1083 if (vesa_init_done) 1084 return (0); 1085 if (flags & VIO_PROBE_ONLY) 1086 return (0); 1087 1088 /* 1089 * If the VESA module has already been loaded, abort loading 1090 * the module this time. 1091 */ 1092 for (i = 0; (adp = vid_get_adapter(i)) != NULL; ++i) { 1093 if (adp->va_flags & V_ADP_VESA) 1094 return (ENXIO); 1095 if (adp->va_type == KD_VGA) 1096 break; 1097 } 1098 1099 /* 1100 * The VGA adapter is not found. This is because either 1101 * 1) the VGA driver has not been initialized, or 2) the VGA card 1102 * is not present. If 1) is the case, we shall defer 1103 * initialization for now and try again later. 1104 */ 1105 if (adp == NULL) { 1106 vga_sub_configure = vesa_configure; 1107 return (ENODEV); 1108 } 1109 1110 /* count number of registered adapters */ 1111 for (++i; vid_get_adapter(i) != NULL; ++i) 1112 ; 1113 adapters = i; 1114 1115 /* call VESA BIOS */ 1116 vesa_adp = adp; 1117 if (vesa_bios_init()) { 1118 vesa_adp = NULL; 1119 return (ENXIO); 1120 } 1121 vesa_adp->va_flags |= V_ADP_VESA; 1122 1123 /* remove conflicting modes if we have more than one adapter */ 1124 if (adapters > 1) { 1125 vesa_clear_modes(vesa_vmode, 1126 (vesa_adp->va_flags & V_ADP_COLOR) ? 1127 V_INFO_COLOR : 0); 1128 } 1129 1130 if ((error = vesa_load_ioctl()) == 0) { 1131 prevvidsw = vidsw[vesa_adp->va_index]; 1132 vidsw[vesa_adp->va_index] = &vesavidsw; 1133 vesa_init_done = TRUE; 1134 } else { 1135 vesa_adp = NULL; 1136 return (error); 1137 } 1138 1139 return (0); 1140 } 1141 1142 #if 0 1143 static int 1144 vesa_nop(void) 1145 { 1146 1147 return (0); 1148 } 1149 #endif 1150 1151 static int 1152 vesa_error(void) 1153 { 1154 1155 return (1); 1156 } 1157 1158 static int 1159 vesa_probe(int unit, video_adapter_t **adpp, void *arg, int flags) 1160 { 1161 1162 return ((*prevvidsw->probe)(unit, adpp, arg, flags)); 1163 } 1164 1165 static int 1166 vesa_init(int unit, video_adapter_t *adp, int flags) 1167 { 1168 1169 return ((*prevvidsw->init)(unit, adp, flags)); 1170 } 1171 1172 static int 1173 vesa_get_info(video_adapter_t *adp, int mode, video_info_t *info) 1174 { 1175 int i; 1176 1177 if ((*prevvidsw->get_info)(adp, mode, info) == 0) 1178 return (0); 1179 1180 if (adp != vesa_adp) 1181 return (1); 1182 1183 mode = vesa_map_gen_mode_num(vesa_adp->va_type, 1184 vesa_adp->va_flags & V_ADP_COLOR, mode); 1185 for (i = 0; vesa_vmode[i].vi_mode != EOT; ++i) { 1186 if (vesa_vmode[i].vi_mode == NA) 1187 continue; 1188 if (vesa_vmode[i].vi_mode == mode) { 1189 *info = vesa_vmode[i]; 1190 return (0); 1191 } 1192 } 1193 return (1); 1194 } 1195 1196 static int 1197 vesa_query_mode(video_adapter_t *adp, video_info_t *info) 1198 { 1199 int i; 1200 1201 if ((*prevvidsw->query_mode)(adp, info) == 0) 1202 return (0); 1203 if (adp != vesa_adp) 1204 return (ENODEV); 1205 1206 for (i = 0; vesa_vmode[i].vi_mode != EOT; ++i) { 1207 if ((info->vi_width != 0) 1208 && (info->vi_width != vesa_vmode[i].vi_width)) 1209 continue; 1210 if ((info->vi_height != 0) 1211 && (info->vi_height != vesa_vmode[i].vi_height)) 1212 continue; 1213 if ((info->vi_cwidth != 0) 1214 && (info->vi_cwidth != vesa_vmode[i].vi_cwidth)) 1215 continue; 1216 if ((info->vi_cheight != 0) 1217 && (info->vi_cheight != vesa_vmode[i].vi_cheight)) 1218 continue; 1219 if ((info->vi_depth != 0) 1220 && (info->vi_depth != vesa_vmode[i].vi_depth)) 1221 continue; 1222 if ((info->vi_planes != 0) 1223 && (info->vi_planes != vesa_vmode[i].vi_planes)) 1224 continue; 1225 /* pixel format, memory model */ 1226 if ((info->vi_flags != 0) 1227 && (info->vi_flags != vesa_vmode[i].vi_flags)) 1228 continue; 1229 *info = vesa_vmode[i]; 1230 return (0); 1231 } 1232 return (ENODEV); 1233 } 1234 1235 static int 1236 vesa_set_mode(video_adapter_t *adp, int mode) 1237 { 1238 video_info_t info; 1239 1240 if (adp != vesa_adp) 1241 return ((*prevvidsw->set_mode)(adp, mode)); 1242 1243 mode = vesa_map_gen_mode_num(adp->va_type, 1244 adp->va_flags & V_ADP_COLOR, mode); 1245 #if VESA_DEBUG > 0 1246 printf("VESA: set_mode(): %d(%x) -> %d(%x)\n", 1247 adp->va_mode, adp->va_mode, mode, mode); 1248 #endif 1249 /* 1250 * If the current mode is a VESA mode and the new mode is not, 1251 * restore the state of the adapter first by setting one of the 1252 * standard VGA mode, so that non-standard, extended SVGA registers 1253 * are set to the state compatible with the standard VGA modes. 1254 * Otherwise (*prevvidsw->set_mode)() may not be able to set up 1255 * the new mode correctly. 1256 */ 1257 if (VESA_MODE(adp->va_mode)) { 1258 if (!VESA_MODE(mode) && 1259 (*prevvidsw->get_info)(adp, mode, &info) == 0) { 1260 int10_set_mode(adp->va_initial_bios_mode); 1261 if (adp->va_info.vi_flags & V_INFO_LINEAR) 1262 vesa_unmap_buffer(adp->va_buffer, 1263 vesa_adp_info->v_memsize*64*1024); 1264 /* 1265 * Once (*prevvidsw->get_info)() succeeded, 1266 * (*prevvidsw->set_mode)() below won't fail... 1267 */ 1268 } 1269 } 1270 1271 /* we may not need to handle this mode after all... */ 1272 if (!VESA_MODE(mode) && (*prevvidsw->set_mode)(adp, mode) == 0) 1273 return (0); 1274 1275 /* is the new mode supported? */ 1276 if (vesa_get_info(adp, mode, &info)) 1277 return (1); 1278 /* assert(VESA_MODE(mode)); */ 1279 1280 #if VESA_DEBUG > 0 1281 printf("VESA: about to set a VESA mode...\n"); 1282 #endif 1283 /* don't use the linear frame buffer for text modes. XXX */ 1284 if (!(info.vi_flags & V_INFO_GRAPHICS)) 1285 info.vi_flags &= ~V_INFO_LINEAR; 1286 1287 if (vesa_bios_set_mode(mode | ((info.vi_flags & V_INFO_LINEAR) ? 0x4000 : 0))) 1288 return (1); 1289 1290 if ((vesa_adp_info->v_flags & V_DAC8) != 0) 1291 vesa_bios_set_dac(8); 1292 1293 if (adp->va_info.vi_flags & V_INFO_LINEAR) 1294 vesa_unmap_buffer(adp->va_buffer, 1295 vesa_adp_info->v_memsize*64*1024); 1296 1297 #if VESA_DEBUG > 0 1298 printf("VESA: mode set!\n"); 1299 #endif 1300 vesa_adp->va_mode = mode; 1301 vesa_adp->va_flags &= ~V_ADP_COLOR; 1302 vesa_adp->va_flags |= 1303 (info.vi_flags & V_INFO_COLOR) ? V_ADP_COLOR : 0; 1304 vesa_adp->va_crtc_addr = 1305 (vesa_adp->va_flags & V_ADP_COLOR) ? COLOR_CRTC : MONO_CRTC; 1306 if (info.vi_flags & V_INFO_LINEAR) { 1307 #if VESA_DEBUG > 1 1308 printf("VESA: setting up LFB\n"); 1309 #endif 1310 vesa_adp->va_buffer = 1311 vesa_map_buffer(info.vi_buffer, 1312 vesa_adp_info->v_memsize*64*1024); 1313 vesa_adp->va_buffer_size = info.vi_buffer_size; 1314 vesa_adp->va_window = vesa_adp->va_buffer; 1315 vesa_adp->va_window_size = info.vi_buffer_size/info.vi_planes; 1316 vesa_adp->va_window_gran = info.vi_buffer_size/info.vi_planes; 1317 } else { 1318 vesa_adp->va_buffer = 0; 1319 vesa_adp->va_buffer_size = info.vi_buffer_size; 1320 vesa_adp->va_window = BIOS_PADDRTOVADDR(info.vi_window); 1321 vesa_adp->va_window_size = info.vi_window_size; 1322 vesa_adp->va_window_gran = info.vi_window_gran; 1323 } 1324 vesa_adp->va_window_orig = 0; 1325 vesa_adp->va_line_width = vesa_get_line_width(&info); 1326 vesa_adp->va_disp_start.x = 0; 1327 vesa_adp->va_disp_start.y = 0; 1328 #if VESA_DEBUG > 0 1329 printf("vesa_set_mode(): vi_width:%d, line_width:%d\n", 1330 info.vi_width, vesa_adp->va_line_width); 1331 #endif 1332 bcopy(&info, &vesa_adp->va_info, sizeof(vesa_adp->va_info)); 1333 1334 /* move hardware cursor out of the way */ 1335 (*vidsw[vesa_adp->va_index]->set_hw_cursor)(vesa_adp, -1, -1); 1336 1337 return (0); 1338 } 1339 1340 static int 1341 vesa_save_font(video_adapter_t *adp, int page, int fontsize, int fontwidth, 1342 u_char *data, int ch, int count) 1343 { 1344 1345 return ((*prevvidsw->save_font)(adp, page, fontsize, fontwidth, data, 1346 ch, count)); 1347 } 1348 1349 static int 1350 vesa_load_font(video_adapter_t *adp, int page, int fontsize, int fontwidth, 1351 u_char *data, int ch, int count) 1352 { 1353 1354 return ((*prevvidsw->load_font)(adp, page, fontsize, fontwidth, data, 1355 ch, count)); 1356 } 1357 1358 static int 1359 vesa_show_font(video_adapter_t *adp, int page) 1360 { 1361 1362 return ((*prevvidsw->show_font)(adp, page)); 1363 } 1364 1365 static int 1366 vesa_save_palette(video_adapter_t *adp, u_char *palette) 1367 { 1368 int bits; 1369 1370 if ((adp == vesa_adp) && 1371 (adp->va_info.vi_flags & V_INFO_NONVGA) != 0 && 1372 (bits = vesa_bios_get_dac()) >= 6) 1373 return (vesa_bios_save_palette(0, 256, palette, bits)); 1374 1375 return ((*prevvidsw->save_palette)(adp, palette)); 1376 } 1377 1378 static int 1379 vesa_load_palette(video_adapter_t *adp, u_char *palette) 1380 { 1381 int bits; 1382 1383 if ((adp == vesa_adp) && 1384 (adp->va_info.vi_flags & V_INFO_NONVGA) != 0 && 1385 (bits = vesa_bios_get_dac()) >= 6) 1386 return (vesa_bios_load_palette(0, 256, palette, bits)); 1387 1388 return ((*prevvidsw->load_palette)(adp, palette)); 1389 } 1390 1391 static int 1392 vesa_set_border(video_adapter_t *adp, int color) 1393 { 1394 1395 return ((*prevvidsw->set_border)(adp, color)); 1396 } 1397 1398 static int 1399 vesa_save_state(video_adapter_t *adp, void *p, size_t size) 1400 { 1401 1402 if (adp != vesa_adp) 1403 return ((*prevvidsw->save_state)(adp, p, size)); 1404 1405 if (vesa_state_buf_size == -1) { 1406 vesa_state_buf_size = vesa_bios_state_buf_size(); 1407 if (vesa_state_buf_size == 0) 1408 return (1); 1409 } 1410 if (size == 0) 1411 return (offsetof(adp_state_t, regs) + vesa_state_buf_size); 1412 else if (size < (offsetof(adp_state_t, regs) + vesa_state_buf_size)) 1413 return (1); 1414 1415 ((adp_state_t *)p)->sig = V_STATE_SIG; 1416 bzero(((adp_state_t *)p)->regs, vesa_state_buf_size); 1417 return (vesa_bios_save_restore(STATE_SAVE, ((adp_state_t *)p)->regs, 1418 vesa_state_buf_size)); 1419 } 1420 1421 static int 1422 vesa_load_state(video_adapter_t *adp, void *p) 1423 { 1424 1425 if ((adp != vesa_adp) || (((adp_state_t *)p)->sig != V_STATE_SIG)) 1426 return ((*prevvidsw->load_state)(adp, p)); 1427 1428 if (vesa_state_buf_size <= 0) 1429 return (1); 1430 1431 /* Try BIOS POST to restore a sane state. */ 1432 (void)vesa_bios_post(); 1433 (void)int10_set_mode(adp->va_initial_bios_mode); 1434 1435 return (vesa_bios_save_restore(STATE_LOAD, ((adp_state_t *)p)->regs, 1436 vesa_state_buf_size)); 1437 } 1438 1439 #if 0 1440 static int 1441 vesa_get_origin(video_adapter_t *adp, off_t *offset) 1442 { 1443 x86regs_t regs; 1444 1445 x86bios_init_regs(®s); 1446 regs.R_AX = 0x4f05; 1447 regs.R_BL = 0x10; 1448 1449 x86bios_intr(®s, 0x10); 1450 1451 if (regs.R_AX != 0x004f) 1452 return (1); 1453 *offset = regs.DX * adp->va_window_gran; 1454 1455 return (0); 1456 } 1457 #endif 1458 1459 static int 1460 vesa_set_origin(video_adapter_t *adp, off_t offset) 1461 { 1462 x86regs_t regs; 1463 1464 /* 1465 * This function should return as quickly as possible to 1466 * maintain good performance of the system. For this reason, 1467 * error checking is kept minimal and let the VESA BIOS to 1468 * detect error. 1469 */ 1470 if (adp != vesa_adp) 1471 return ((*prevvidsw->set_win_org)(adp, offset)); 1472 1473 /* if this is a linear frame buffer, do nothing */ 1474 if (adp->va_info.vi_flags & V_INFO_LINEAR) 1475 return (0); 1476 /* XXX */ 1477 if (adp->va_window_gran == 0) 1478 return (1); 1479 1480 x86bios_init_regs(®s); 1481 regs.R_AX = 0x4f05; 1482 regs.R_DX = offset / adp->va_window_gran; 1483 1484 x86bios_intr(®s, 0x10); 1485 1486 if (regs.R_AX != 0x004f) 1487 return (1); 1488 1489 x86bios_init_regs(®s); 1490 regs.R_AX = 0x4f05; 1491 regs.R_BL = 1; 1492 regs.R_DX = offset / adp->va_window_gran; 1493 x86bios_intr(®s, 0x10); 1494 1495 adp->va_window_orig = (offset/adp->va_window_gran)*adp->va_window_gran; 1496 return (0); /* XXX */ 1497 } 1498 1499 static int 1500 vesa_read_hw_cursor(video_adapter_t *adp, int *col, int *row) 1501 { 1502 1503 return ((*prevvidsw->read_hw_cursor)(adp, col, row)); 1504 } 1505 1506 static int 1507 vesa_set_hw_cursor(video_adapter_t *adp, int col, int row) 1508 { 1509 1510 return ((*prevvidsw->set_hw_cursor)(adp, col, row)); 1511 } 1512 1513 static int 1514 vesa_set_hw_cursor_shape(video_adapter_t *adp, int base, int height, 1515 int celsize, int blink) 1516 { 1517 1518 return ((*prevvidsw->set_hw_cursor_shape)(adp, base, height, celsize, 1519 blink)); 1520 } 1521 1522 static int 1523 vesa_blank_display(video_adapter_t *adp, int mode) 1524 { 1525 1526 /* XXX: use VESA DPMS */ 1527 return ((*prevvidsw->blank_display)(adp, mode)); 1528 } 1529 1530 static int 1531 vesa_mmap(video_adapter_t *adp, vm_offset_t offset, vm_paddr_t *paddr, 1532 int prot) 1533 { 1534 1535 #if VESA_DEBUG > 0 1536 printf("vesa_mmap(): window:0x%tx, buffer:0x%tx, offset:0x%tx\n", 1537 adp->va_info.vi_window, adp->va_info.vi_buffer, offset); 1538 #endif 1539 1540 if ((adp == vesa_adp) && 1541 (adp->va_info.vi_flags & V_INFO_LINEAR) != 0) { 1542 /* va_window_size == va_buffer_size/vi_planes */ 1543 /* XXX: is this correct? */ 1544 if (offset > adp->va_window_size - PAGE_SIZE) 1545 return (-1); 1546 *paddr = adp->va_info.vi_buffer + offset; 1547 return (0); 1548 } 1549 return ((*prevvidsw->mmap)(adp, offset, paddr, prot)); 1550 } 1551 1552 static int 1553 vesa_clear(video_adapter_t *adp) 1554 { 1555 1556 return ((*prevvidsw->clear)(adp)); 1557 } 1558 1559 static int 1560 vesa_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 1561 { 1562 1563 return ((*prevvidsw->fill_rect)(adp, val, x, y, cx, cy)); 1564 } 1565 1566 static int 1567 vesa_bitblt(video_adapter_t *adp,...) 1568 { 1569 1570 /* FIXME */ 1571 return (1); 1572 } 1573 1574 static int 1575 get_palette(video_adapter_t *adp, int base, int count, 1576 u_char *red, u_char *green, u_char *blue, u_char *trans) 1577 { 1578 u_char *r; 1579 u_char *g; 1580 u_char *b; 1581 int bits; 1582 int error; 1583 1584 if ((base < 0) || (base >= 256) || (count < 0) || (count > 256)) 1585 return (1); 1586 if ((base + count) > 256) 1587 return (1); 1588 if ((adp->va_info.vi_flags & V_INFO_NONVGA) == 0 || 1589 (bits = vesa_bios_get_dac()) < 6) 1590 return (1); 1591 1592 r = malloc(count * 3, M_DEVBUF, M_WAITOK); 1593 g = r + count; 1594 b = g + count; 1595 error = vesa_bios_save_palette2(base, count, r, g, b, bits); 1596 if (error == 0) { 1597 copyout(r, red, count); 1598 copyout(g, green, count); 1599 copyout(b, blue, count); 1600 if (trans != NULL) { 1601 bzero(r, count); 1602 copyout(r, trans, count); 1603 } 1604 } 1605 free(r, M_DEVBUF); 1606 1607 return (error); 1608 } 1609 1610 static int 1611 set_palette(video_adapter_t *adp, int base, int count, 1612 u_char *red, u_char *green, u_char *blue, u_char *trans) 1613 { 1614 u_char *r; 1615 u_char *g; 1616 u_char *b; 1617 int bits; 1618 int error; 1619 1620 if ((base < 0) || (base >= 256) || (base + count > 256)) 1621 return (1); 1622 if ((adp->va_info.vi_flags & V_INFO_NONVGA) == 0 || 1623 (bits = vesa_bios_get_dac()) < 6) 1624 return (1); 1625 1626 r = malloc(count * 3, M_DEVBUF, M_WAITOK); 1627 g = r + count; 1628 b = g + count; 1629 copyin(red, r, count); 1630 copyin(green, g, count); 1631 copyin(blue, b, count); 1632 1633 error = vesa_bios_load_palette2(base, count, r, g, b, bits); 1634 free(r, M_DEVBUF); 1635 1636 return (error); 1637 } 1638 1639 static int 1640 vesa_ioctl(video_adapter_t *adp, u_long cmd, caddr_t arg) 1641 { 1642 int bytes; 1643 1644 if (adp != vesa_adp) 1645 return ((*prevvidsw->ioctl)(adp, cmd, arg)); 1646 1647 switch (cmd) { 1648 case FBIO_SETWINORG: /* set frame buffer window origin */ 1649 if (!VESA_MODE(adp->va_mode)) 1650 return (*prevvidsw->ioctl)(adp, cmd, arg); 1651 return (vesa_set_origin(adp, *(off_t *)arg) ? ENODEV : 0); 1652 1653 case FBIO_SETDISPSTART: /* set display start address */ 1654 if (!VESA_MODE(adp->va_mode)) 1655 return ((*prevvidsw->ioctl)(adp, cmd, arg)); 1656 if (vesa_bios_set_start(((video_display_start_t *)arg)->x, 1657 ((video_display_start_t *)arg)->y)) 1658 return (ENODEV); 1659 adp->va_disp_start.x = ((video_display_start_t *)arg)->x; 1660 adp->va_disp_start.y = ((video_display_start_t *)arg)->y; 1661 return (0); 1662 1663 case FBIO_SETLINEWIDTH: /* set line length in pixel */ 1664 if (!VESA_MODE(adp->va_mode)) 1665 return ((*prevvidsw->ioctl)(adp, cmd, arg)); 1666 if (vesa_bios_set_line_length(*(u_int *)arg, &bytes, NULL)) 1667 return (ENODEV); 1668 adp->va_line_width = bytes; 1669 #if VESA_DEBUG > 1 1670 printf("new line width:%d\n", adp->va_line_width); 1671 #endif 1672 return (0); 1673 1674 case FBIO_GETPALETTE: /* get color palette */ 1675 if (get_palette(adp, ((video_color_palette_t *)arg)->index, 1676 ((video_color_palette_t *)arg)->count, 1677 ((video_color_palette_t *)arg)->red, 1678 ((video_color_palette_t *)arg)->green, 1679 ((video_color_palette_t *)arg)->blue, 1680 ((video_color_palette_t *)arg)->transparent)) 1681 return ((*prevvidsw->ioctl)(adp, cmd, arg)); 1682 return (0); 1683 1684 1685 case FBIO_SETPALETTE: /* set color palette */ 1686 if (set_palette(adp, ((video_color_palette_t *)arg)->index, 1687 ((video_color_palette_t *)arg)->count, 1688 ((video_color_palette_t *)arg)->red, 1689 ((video_color_palette_t *)arg)->green, 1690 ((video_color_palette_t *)arg)->blue, 1691 ((video_color_palette_t *)arg)->transparent)) 1692 return ((*prevvidsw->ioctl)(adp, cmd, arg)); 1693 return (0); 1694 1695 case FBIOGETCMAP: /* get color palette */ 1696 if (get_palette(adp, ((struct fbcmap *)arg)->index, 1697 ((struct fbcmap *)arg)->count, 1698 ((struct fbcmap *)arg)->red, 1699 ((struct fbcmap *)arg)->green, 1700 ((struct fbcmap *)arg)->blue, NULL)) 1701 return ((*prevvidsw->ioctl)(adp, cmd, arg)); 1702 return (0); 1703 1704 case FBIOPUTCMAP: /* set color palette */ 1705 if (set_palette(adp, ((struct fbcmap *)arg)->index, 1706 ((struct fbcmap *)arg)->count, 1707 ((struct fbcmap *)arg)->red, 1708 ((struct fbcmap *)arg)->green, 1709 ((struct fbcmap *)arg)->blue, NULL)) 1710 return ((*prevvidsw->ioctl)(adp, cmd, arg)); 1711 return (0); 1712 1713 default: 1714 return ((*prevvidsw->ioctl)(adp, cmd, arg)); 1715 } 1716 } 1717 1718 static int 1719 vesa_diag(video_adapter_t *adp, int level) 1720 { 1721 int error; 1722 1723 /* call the previous handler first */ 1724 error = (*prevvidsw->diag)(adp, level); 1725 if (error) 1726 return (error); 1727 1728 if (adp != vesa_adp) 1729 return (1); 1730 1731 if (level <= 0) 1732 return (0); 1733 1734 return (0); 1735 } 1736 1737 static int 1738 vesa_bios_info(int level) 1739 { 1740 #if VESA_DEBUG > 1 1741 struct vesa_mode vmode; 1742 int i; 1743 #endif 1744 uint16_t vers; 1745 1746 vers = vesa_adp_info->v_version; 1747 1748 if (bootverbose) { 1749 /* general adapter information */ 1750 printf( 1751 "VESA: v%d.%d, %dk memory, flags:0x%x, mode table:%p (%x)\n", 1752 (vers >> 12) * 10 + ((vers & 0x0f00) >> 8), 1753 ((vers & 0x00f0) >> 4) * 10 + (vers & 0x000f), 1754 vesa_adp_info->v_memsize * 64, vesa_adp_info->v_flags, 1755 vesa_vmodetab, vesa_adp_info->v_modetable); 1756 1757 /* OEM string */ 1758 if (vesa_oemstr != NULL) 1759 printf("VESA: %s\n", vesa_oemstr); 1760 } 1761 1762 if (level <= 0) 1763 return (0); 1764 1765 if (vers >= 0x0200 && bootverbose) { 1766 /* vender name, product name, product revision */ 1767 printf("VESA: %s %s %s\n", 1768 (vesa_venderstr != NULL) ? vesa_venderstr : "unknown", 1769 (vesa_prodstr != NULL) ? vesa_prodstr : "unknown", 1770 (vesa_revstr != NULL) ? vesa_revstr : "?"); 1771 } 1772 1773 #if VESA_DEBUG > 1 1774 /* mode information */ 1775 for (i = 0; 1776 (i < (M_VESA_MODE_MAX - M_VESA_BASE + 1)) 1777 && (vesa_vmodetab[i] != 0xffff); ++i) { 1778 if (vesa_bios_get_mode(vesa_vmodetab[i], &vmode)) 1779 continue; 1780 1781 /* print something for diagnostic purpose */ 1782 printf("VESA: mode:0x%03x, flags:0x%04x", 1783 vesa_vmodetab[i], vmode.v_modeattr); 1784 if (vmode.v_modeattr & V_MODEOPTINFO) { 1785 if (vmode.v_modeattr & V_MODEGRAPHICS) { 1786 printf(", G %dx%dx%d %d, ", 1787 vmode.v_width, vmode.v_height, 1788 vmode.v_bpp, vmode.v_planes); 1789 } else { 1790 printf(", T %dx%d, ", 1791 vmode.v_width, vmode.v_height); 1792 } 1793 printf("font:%dx%d, ", 1794 vmode.v_cwidth, vmode.v_cheight); 1795 printf("pages:%d, mem:%d", 1796 vmode.v_ipages + 1, vmode.v_memmodel); 1797 } 1798 if (vmode.v_modeattr & V_MODELFB) { 1799 printf("\nVESA: LFB:0x%x, off:0x%x, off_size:0x%x", 1800 vmode.v_lfb, vmode.v_offscreen, 1801 vmode.v_offscreensize*1024); 1802 } 1803 printf("\n"); 1804 printf("VESA: window A:0x%x (%x), window B:0x%x (%x), ", 1805 vmode.v_waseg, vmode.v_waattr, 1806 vmode.v_wbseg, vmode.v_wbattr); 1807 printf("size:%dk, gran:%dk\n", 1808 vmode.v_wsize, vmode.v_wgran); 1809 } 1810 #endif /* VESA_DEBUG > 1 */ 1811 1812 return (0); 1813 } 1814 1815 /* module loading */ 1816 1817 static int 1818 vesa_load(void) 1819 { 1820 int error; 1821 int s; 1822 1823 if (vesa_init_done) 1824 return (0); 1825 1826 /* locate a VGA adapter */ 1827 s = spltty(); 1828 vesa_adp = NULL; 1829 error = vesa_configure(0); 1830 splx(s); 1831 1832 if (error == 0) 1833 vesa_bios_info(bootverbose); 1834 1835 return (error); 1836 } 1837 1838 static int 1839 vesa_unload(void) 1840 { 1841 u_char palette[256*3]; 1842 int error; 1843 int bits; 1844 int s; 1845 1846 /* if the adapter is currently in a VESA mode, don't unload */ 1847 if ((vesa_adp != NULL) && VESA_MODE(vesa_adp->va_mode)) 1848 return (EBUSY); 1849 /* 1850 * FIXME: if there is at least one vty which is in a VESA mode, 1851 * we shouldn't be unloading! XXX 1852 */ 1853 1854 s = spltty(); 1855 if ((error = vesa_unload_ioctl()) == 0) { 1856 if (vesa_adp != NULL) { 1857 if (vesa_adp_info->v_flags & V_DAC8) { 1858 bits = vesa_bios_get_dac(); 1859 if (bits > 6) { 1860 vesa_bios_save_palette(0, 256, 1861 palette, bits); 1862 vesa_bios_set_dac(6); 1863 vesa_bios_load_palette(0, 256, 1864 palette, 6); 1865 } 1866 } 1867 vesa_adp->va_flags &= ~V_ADP_VESA; 1868 vidsw[vesa_adp->va_index] = prevvidsw; 1869 } 1870 } 1871 splx(s); 1872 1873 if (vesa_oemstr != NULL) 1874 free(vesa_oemstr, M_DEVBUF); 1875 if (vesa_venderstr != NULL) 1876 free(vesa_venderstr, M_DEVBUF); 1877 if (vesa_prodstr != NULL) 1878 free(vesa_prodstr, M_DEVBUF); 1879 if (vesa_revstr != NULL) 1880 free(vesa_revstr, M_DEVBUF); 1881 if (vesa_vmode != &vesa_vmode_empty) 1882 free(vesa_vmode, M_DEVBUF); 1883 return (error); 1884 } 1885 1886 static int 1887 vesa_mod_event(module_t mod, int type, void *data) 1888 { 1889 1890 switch (type) { 1891 case MOD_LOAD: 1892 return (vesa_load()); 1893 case MOD_UNLOAD: 1894 return (vesa_unload()); 1895 } 1896 return (EOPNOTSUPP); 1897 } 1898 1899 static moduledata_t vesa_mod = { 1900 "vesa", 1901 vesa_mod_event, 1902 NULL, 1903 }; 1904 1905 DECLARE_MODULE(vesa, vesa_mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE); 1906 MODULE_DEPEND(vesa, x86bios, 1, 1, 1); 1907 1908 #endif /* VGA_NO_MODE_CHANGE */ 1909