vesa.c revision 48399
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 * $Id: vesa.c,v 1.25 1999/06/22 14:13:13 yokota Exp $ 27 */ 28 29#include "vga.h" 30#include "opt_vga.h" 31#include "opt_vesa.h" 32#include "opt_fb.h" 33 34#ifdef VGA_NO_MODE_CHANGE 35#undef VESA 36#endif 37 38#if (NVGA > 0 && defined(VESA)) || defined(KLD_MODULE) 39 40#include <sys/param.h> 41#include <sys/systm.h> 42#include <sys/kernel.h> 43#include <sys/module.h> 44#include <sys/malloc.h> 45#include <sys/fbio.h> 46 47#include <vm/vm.h> 48#include <vm/vm_extern.h> 49#include <vm/vm_kern.h> 50#include <vm/pmap.h> 51 52#include <machine/md_var.h> 53#include <machine/vm86.h> 54#include <machine/pc/bios.h> 55#include <machine/pc/vesa.h> 56 57#include <dev/fb/fbreg.h> 58#include <dev/fb/vgareg.h> 59 60#ifndef __i386__ 61#include <isa/isareg.h> 62#else 63#include <i386/isa/isa.h> 64#endif 65 66#ifndef VESA_DEBUG 67#define VESA_DEBUG 0 68#endif 69 70/* VESA video adapter state buffer stub */ 71struct adp_state { 72 int sig; 73#define V_STATE_SIG 0x61736576 74 u_char regs[1]; 75}; 76typedef struct adp_state adp_state_t; 77 78/* VESA video adapter */ 79static video_adapter_t *vesa_adp = NULL; 80static int vesa_state_buf_size = 0; 81 82/* VESA functions */ 83#if 0 84static int vesa_nop(void); 85#endif 86static int vesa_error(void); 87static vi_probe_t vesa_probe; 88static vi_init_t vesa_init; 89static vi_get_info_t vesa_get_info; 90static vi_query_mode_t vesa_query_mode; 91static vi_set_mode_t vesa_set_mode; 92static vi_save_font_t vesa_save_font; 93static vi_load_font_t vesa_load_font; 94static vi_show_font_t vesa_show_font; 95static vi_save_palette_t vesa_save_palette; 96static vi_load_palette_t vesa_load_palette; 97static vi_set_border_t vesa_set_border; 98static vi_save_state_t vesa_save_state; 99static vi_load_state_t vesa_load_state; 100static vi_set_win_org_t vesa_set_origin; 101static vi_read_hw_cursor_t vesa_read_hw_cursor; 102static vi_set_hw_cursor_t vesa_set_hw_cursor; 103static vi_set_hw_cursor_shape_t vesa_set_hw_cursor_shape; 104static vi_blank_display_t vesa_blank_display; 105static vi_mmap_t vesa_mmap; 106static vi_ioctl_t vesa_ioctl; 107static vi_clear_t vesa_clear; 108static vi_fill_rect_t vesa_fill_rect; 109static vi_bitblt_t vesa_bitblt; 110static vi_diag_t vesa_diag; 111static int vesa_bios_info(int level); 112static struct vm86context vesa_vmcontext; 113 114static video_switch_t vesavidsw = { 115 vesa_probe, 116 vesa_init, 117 vesa_get_info, 118 vesa_query_mode, 119 vesa_set_mode, 120 vesa_save_font, 121 vesa_load_font, 122 vesa_show_font, 123 vesa_save_palette, 124 vesa_load_palette, 125 vesa_set_border, 126 vesa_save_state, 127 vesa_load_state, 128 vesa_set_origin, 129 vesa_read_hw_cursor, 130 vesa_set_hw_cursor, 131 vesa_set_hw_cursor_shape, 132 vesa_blank_display, 133 vesa_mmap, 134 vesa_ioctl, 135 vesa_clear, 136 vesa_fill_rect, 137 vesa_bitblt, 138 vesa_error, 139 vesa_error, 140 vesa_diag, 141}; 142 143static video_switch_t *prevvidsw; 144 145/* VESA BIOS video modes */ 146#define VESA_MAXMODES 64 147#define EOT (-1) 148#define NA (-2) 149 150#define MODE_TABLE_DELTA 8 151 152static int vesa_vmode_max = 0; 153static video_info_t vesa_vmode_empty = { EOT }; 154static video_info_t *vesa_vmode = &vesa_vmode_empty; 155 156static int vesa_init_done = FALSE; 157static int has_vesa_bios = FALSE; 158static struct vesa_info *vesa_adp_info = NULL; 159static u_int16_t *vesa_vmodetab = NULL; 160static char *vesa_oemstr = NULL; 161static char *vesa_venderstr = NULL; 162static char *vesa_prodstr = NULL; 163static char *vesa_revstr = NULL; 164 165/* local macros and functions */ 166#define BIOS_SADDRTOLADDR(p) ((((p) & 0xffff0000) >> 12) + ((p) & 0x0000ffff)) 167 168static int int10_set_mode(int mode); 169static int vesa_bios_get_mode(int mode, struct vesa_mode *vmode); 170static int vesa_bios_set_mode(int mode); 171static int vesa_bios_get_dac(void); 172static int vesa_bios_set_dac(int bits); 173static int vesa_bios_save_palette(int start, int colors, u_char *palette, 174 int bits); 175static int vesa_bios_save_palette2(int start, int colors, u_char *r, u_char *g, 176 u_char *b, int bits); 177static int vesa_bios_load_palette(int start, int colors, u_char *palette, 178 int bits); 179#ifdef notyet 180static int vesa_bios_load_palette2(int start, int colors, u_char *r, u_char *g, 181 u_char *b, int bits); 182#endif 183#define STATE_SIZE 0 184#define STATE_SAVE 1 185#define STATE_LOAD 2 186#define STATE_HW (1<<0) 187#define STATE_DATA (1<<1) 188#define STATE_DAC (1<<2) 189#define STATE_REG (1<<3) 190#define STATE_MOST (STATE_HW | STATE_DATA | STATE_REG) 191#define STATE_ALL (STATE_HW | STATE_DATA | STATE_DAC | STATE_REG) 192static int vesa_bios_state_buf_size(void); 193static int vesa_bios_save_restore(int code, void *p, size_t size); 194static int vesa_bios_get_line_length(void); 195static int vesa_bios_set_line_length(int pixel); 196#if 0 197static int vesa_bios_get_start(int *x, int *y); 198#endif 199static int vesa_bios_set_start(int x, int y); 200static int vesa_map_gen_mode_num(int type, int color, int mode); 201static int vesa_translate_flags(u_int16_t vflags); 202static int vesa_translate_mmodel(u_int8_t vmodel); 203static void *vesa_fix_ptr(u_int32_t p, u_int16_t seg, u_int16_t off, 204 u_char *buf); 205static int vesa_bios_init(void); 206static void vesa_clear_modes(video_info_t *info, int color); 207static vm_offset_t vesa_map_buffer(u_int paddr, size_t size); 208static void vesa_unmap_buffer(vm_offset_t vaddr, size_t size); 209 210#if 0 211static int vesa_get_origin(video_adapter_t *adp, off_t *offset); 212#endif 213 214static void 215dump_buffer(u_char *buf, size_t len) 216{ 217 int i; 218 219 for(i = 0; i < len;) { 220 printf("%02x ", buf[i]); 221 if ((++i % 16) == 0) 222 printf("\n"); 223 } 224} 225 226/* INT 10 BIOS calls */ 227static int 228int10_set_mode(int mode) 229{ 230 struct vm86frame vmf; 231 232 bzero(&vmf, sizeof(vmf)); 233 vmf.vmf_eax = 0x0000 | mode; 234 vm86_intcall(0x10, &vmf); 235 return 0; 236} 237 238/* VESA BIOS calls */ 239static int 240vesa_bios_get_mode(int mode, struct vesa_mode *vmode) 241{ 242 struct vm86frame vmf; 243 u_char *buf; 244 int err; 245 246 bzero(&vmf, sizeof(vmf)); 247 vmf.vmf_eax = 0x4f01; 248 vmf.vmf_ecx = mode; 249 buf = (u_char *)vm86_getpage(&vesa_vmcontext, 1); 250 vm86_getptr(&vesa_vmcontext, (vm_offset_t)buf, &vmf.vmf_es, &vmf.vmf_di); 251 252 err = vm86_datacall(0x10, &vmf, &vesa_vmcontext); 253 if ((err != 0) || (vmf.vmf_eax != 0x4f)) 254 return 1; 255 bcopy(buf, vmode, sizeof(*vmode)); 256 return 0; 257} 258 259static int 260vesa_bios_set_mode(int mode) 261{ 262 struct vm86frame vmf; 263 int err; 264 265 bzero(&vmf, sizeof(vmf)); 266 vmf.vmf_eax = 0x4f02; 267 vmf.vmf_ebx = mode; 268 err = vm86_intcall(0x10, &vmf); 269 return ((err != 0) || (vmf.vmf_eax != 0x4f)); 270} 271 272static int 273vesa_bios_get_dac(void) 274{ 275 struct vm86frame vmf; 276 int err; 277 278 bzero(&vmf, sizeof(vmf)); 279 vmf.vmf_eax = 0x4f08; 280 vmf.vmf_ebx = 1; /* get DAC width */ 281 err = vm86_intcall(0x10, &vmf); 282 if ((err != 0) || (vmf.vmf_eax != 0x4f)) 283 return 6; /* XXX */ 284 return ((vmf.vmf_ebx >> 8) & 0x00ff); 285} 286 287static int 288vesa_bios_set_dac(int bits) 289{ 290 struct vm86frame vmf; 291 int err; 292 293 bzero(&vmf, sizeof(vmf)); 294 vmf.vmf_eax = 0x4f08; 295 vmf.vmf_ebx = (bits << 8); 296 err = vm86_intcall(0x10, &vmf); 297 if ((err != 0) || (vmf.vmf_eax != 0x4f)) 298 return 6; /* XXX */ 299 return ((vmf.vmf_ebx >> 8) & 0x00ff); 300} 301 302static int 303vesa_bios_save_palette(int start, int colors, u_char *palette, int bits) 304{ 305 struct vm86frame vmf; 306 u_char *p; 307 int err; 308 int i; 309 310 bzero(&vmf, sizeof(vmf)); 311 vmf.vmf_eax = 0x4f09; 312 vmf.vmf_ebx = 1; /* get primary palette data */ 313 vmf.vmf_ecx = colors; 314 vmf.vmf_edx = start; 315 p = (u_char *)vm86_getpage(&vesa_vmcontext, 1); 316 vm86_getptr(&vesa_vmcontext, (vm_offset_t)p, &vmf.vmf_es, &vmf.vmf_di); 317 318 err = vm86_datacall(0x10, &vmf, &vesa_vmcontext); 319 if ((err != 0) || (vmf.vmf_eax != 0x4f)) 320 return 1; 321 322 bits = 8 - bits; 323 for (i = 0; i < colors; ++i) { 324 palette[i*3] = p[i*4 + 2] << bits; 325 palette[i*3 + 1] = p[i*4 + 1] << bits; 326 palette[i*3 + 2] = p[i*4] << bits; 327 } 328 return 0; 329} 330 331static int 332vesa_bios_save_palette2(int start, int colors, u_char *r, u_char *g, u_char *b, 333 int bits) 334{ 335 struct vm86frame vmf; 336 u_char *p; 337 int err; 338 int i; 339 340 bzero(&vmf, sizeof(vmf)); 341 vmf.vmf_eax = 0x4f09; 342 vmf.vmf_ebx = 1; /* get primary palette data */ 343 vmf.vmf_ecx = colors; 344 vmf.vmf_edx = start; 345 p = (u_char *)vm86_getpage(&vesa_vmcontext, 1); 346 vm86_getptr(&vesa_vmcontext, (vm_offset_t)p, &vmf.vmf_es, &vmf.vmf_di); 347 348 err = vm86_datacall(0x10, &vmf, &vesa_vmcontext); 349 if ((err != 0) || (vmf.vmf_eax != 0x4f)) 350 return 1; 351 352 bits = 8 - bits; 353 for (i = 0; i < colors; ++i) { 354 r[i] = p[i*4 + 2] << bits; 355 g[i] = p[i*4 + 1] << bits; 356 b[i] = p[i*4] << bits; 357 } 358 return 0; 359} 360 361static int 362vesa_bios_load_palette(int start, int colors, u_char *palette, int bits) 363{ 364 struct vm86frame vmf; 365 u_char *p; 366 int err; 367 int i; 368 369 p = (u_char *)vm86_getpage(&vesa_vmcontext, 1); 370 bits = 8 - bits; 371 for (i = 0; i < colors; ++i) { 372 p[i*4] = palette[i*3 + 2] >> bits; 373 p[i*4 + 1] = palette[i*3 + 1] >> bits; 374 p[i*4 + 2] = palette[i*3] >> bits; 375 p[i*4 + 3] = 0; 376 } 377 378 bzero(&vmf, sizeof(vmf)); 379 vmf.vmf_eax = 0x4f09; 380 vmf.vmf_ebx = 0; /* set primary palette data */ 381 vmf.vmf_ecx = colors; 382 vmf.vmf_edx = start; 383 vm86_getptr(&vesa_vmcontext, (vm_offset_t)p, &vmf.vmf_es, &vmf.vmf_di); 384 385 err = vm86_datacall(0x10, &vmf, &vesa_vmcontext); 386 return ((err != 0) || (vmf.vmf_eax != 0x4f)); 387} 388 389#ifdef notyet 390static int 391vesa_bios_load_palette2(int start, int colors, u_char *r, u_char *g, u_char *b, 392 int bits) 393{ 394 struct vm86frame vmf; 395 u_char *p; 396 int err; 397 int i; 398 399 p = (u_char *)vm86_getpage(&vesa_vmcontext, 1); 400 bits = 8 - bits; 401 for (i = 0; i < colors; ++i) { 402 p[i*4] = b[i] >> bits; 403 p[i*4 + 1] = g[i] >> bits; 404 p[i*4 + 2] = r[i] >> bits; 405 p[i*4 + 3] = 0; 406 } 407 408 bzero(&vmf, sizeof(vmf)); 409 vmf.vmf_eax = 0x4f09; 410 vmf.vmf_ebx = 0; /* set primary palette data */ 411 vmf.vmf_ecx = colors; 412 vmf.vmf_edx = start; 413 vm86_getptr(&vesa_vmcontext, (vm_offset_t)p, &vmf.vmf_es, &vmf.vmf_di); 414 415 err = vm86_datacall(0x10, &vmf, &vesa_vmcontext); 416 return ((err != 0) || (vmf.vmf_eax != 0x4f)); 417} 418#endif 419 420static int 421vesa_bios_state_buf_size(void) 422{ 423 struct vm86frame vmf; 424 int err; 425 426 bzero(&vmf, sizeof(vmf)); 427 vmf.vmf_eax = 0x4f04; 428 vmf.vmf_ecx = STATE_MOST; 429 vmf.vmf_edx = STATE_SIZE; 430 err = vm86_intcall(0x10, &vmf); 431 if ((err != 0) || (vmf.vmf_eax != 0x4f)) 432 return 0; 433 return vmf.vmf_ebx*64; 434} 435 436static int 437vesa_bios_save_restore(int code, void *p, size_t size) 438{ 439 struct vm86frame vmf; 440 u_char *buf; 441 int err; 442 443 bzero(&vmf, sizeof(vmf)); 444 vmf.vmf_eax = 0x4f04; 445 vmf.vmf_ecx = STATE_MOST; 446 vmf.vmf_edx = code; /* STATE_SAVE/STATE_LOAD */ 447 buf = (u_char *)vm86_getpage(&vesa_vmcontext, 1); 448 vm86_getptr(&vesa_vmcontext, (vm_offset_t)buf, &vmf.vmf_es, &vmf.vmf_di); 449 bcopy(p, buf, size); 450 451 err = vm86_datacall(0x10, &vmf, &vesa_vmcontext); 452 return ((err != 0) || (vmf.vmf_eax != 0x4f)); 453} 454 455static int 456vesa_bios_get_line_length(void) 457{ 458 struct vm86frame vmf; 459 int err; 460 461 bzero(&vmf, sizeof(vmf)); 462 vmf.vmf_eax = 0x4f06; 463 vmf.vmf_ebx = 1; /* get scan line length */ 464 err = vm86_intcall(0x10, &vmf); 465 if ((err != 0) || (vmf.vmf_eax != 0x4f)) 466 return -1; 467 return vmf.vmf_bx; /* line length in bytes */ 468} 469 470static int 471vesa_bios_set_line_length(int pixel) 472{ 473 struct vm86frame vmf; 474 int err; 475 476 bzero(&vmf, sizeof(vmf)); 477 vmf.vmf_eax = 0x4f06; 478 vmf.vmf_ebx = 0; /* set scan line length in pixel */ 479 vmf.vmf_ecx = pixel; 480 err = vm86_intcall(0x10, &vmf); 481#if VESA_DEBUG > 1 482 printf("bx:%d, cx:%d, dx:%d\n", vmf.vmf_bx, vmf.vmf_cx, vmf.vmf_dx); 483#endif 484 return ((err != 0) || (vmf.vmf_eax != 0x4f)); 485} 486 487#if 0 488static int 489vesa_bios_get_start(int *x, int *y) 490{ 491 struct vm86frame vmf; 492 int err; 493 494 bzero(&vmf, sizeof(vmf)); 495 vmf.vmf_eax = 0x4f07; 496 vmf.vmf_ebx = 1; /* get display start */ 497 err = vm86_intcall(0x10, &vmf); 498 if ((err != 0) || (vmf.vmf_eax != 0x4f)) 499 return 1; 500 *x = vmf.vmf_cx; 501 *y = vmf.vmf_dx; 502 return 0; 503} 504#endif 505 506static int 507vesa_bios_set_start(int x, int y) 508{ 509 struct vm86frame vmf; 510 int err; 511 512 bzero(&vmf, sizeof(vmf)); 513 vmf.vmf_eax = 0x4f07; 514 vmf.vmf_ebx = 0x80; /* set display start */ 515 vmf.vmf_edx = y; 516 vmf.vmf_ecx = x; 517 err = vm86_intcall(0x10, &vmf); 518 return ((err != 0) || (vmf.vmf_eax != 0x4f)); 519} 520 521/* map a generic video mode to a known mode */ 522static int 523vesa_map_gen_mode_num(int type, int color, int mode) 524{ 525 static struct { 526 int from; 527 int to; 528 } mode_map[] = { 529 { M_TEXT_132x25, M_VESA_C132x25 }, 530 { M_TEXT_132x43, M_VESA_C132x43 }, 531 { M_TEXT_132x50, M_VESA_C132x50 }, 532 { M_TEXT_132x60, M_VESA_C132x60 }, 533 }; 534 int i; 535 536 for (i = 0; i < sizeof(mode_map)/sizeof(mode_map[0]); ++i) { 537 if (mode_map[i].from == mode) 538 return mode_map[i].to; 539 } 540 return mode; 541} 542 543static int 544vesa_translate_flags(u_int16_t vflags) 545{ 546 static struct { 547 u_int16_t mask; 548 int set; 549 int reset; 550 } ftable[] = { 551 { V_MODECOLOR, V_INFO_COLOR, 0 }, 552 { V_MODEGRAPHICS, V_INFO_GRAPHICS, 0 }, 553 { V_MODELFB, V_INFO_LINEAR, 0 }, 554 }; 555 int flags; 556 int i; 557 558 for (flags = 0, i = 0; i < sizeof(ftable)/sizeof(ftable[0]); ++i) { 559 flags |= (vflags & ftable[i].mask) ? 560 ftable[i].set : ftable[i].reset; 561 } 562 return flags; 563} 564 565static int 566vesa_translate_mmodel(u_int8_t vmodel) 567{ 568 static struct { 569 u_int8_t vmodel; 570 int mmodel; 571 } mtable[] = { 572 { V_MMTEXT, V_INFO_MM_TEXT }, 573 { V_MMCGA, V_INFO_MM_CGA }, 574 { V_MMHGC, V_INFO_MM_HGC }, 575 { V_MMEGA, V_INFO_MM_PLANAR }, 576 { V_MMPACKED, V_INFO_MM_PACKED }, 577 { V_MMDIRCOLOR, V_INFO_MM_DIRECT }, 578 }; 579 int i; 580 581 for (i = 0; mtable[i].mmodel >= 0; ++i) { 582 if (mtable[i].vmodel == vmodel) 583 return mtable[i].mmodel; 584 } 585 return V_INFO_MM_OTHER; 586} 587 588static void 589*vesa_fix_ptr(u_int32_t p, u_int16_t seg, u_int16_t off, u_char *buf) 590{ 591 if (p == 0) 592 return NULL; 593 if (((p >> 16) == seg) && ((p & 0xffff) >= off)) 594 return (void *)(buf + ((p & 0xffff) - off)); 595 else { 596 p = BIOS_SADDRTOLADDR(p); 597 return (void *)BIOS_PADDRTOVADDR(p); 598 } 599} 600 601static int 602vesa_bios_init(void) 603{ 604 static u_char buf[512]; 605 struct vm86frame vmf; 606 struct vesa_mode vmode; 607 video_info_t *p; 608 u_char *vmbuf; 609 int modes; 610 int err; 611 int i; 612 613 if (vesa_init_done) 614 return 0; 615 616 has_vesa_bios = FALSE; 617 vesa_adp_info = NULL; 618 vesa_vmode_max = 0; 619 vesa_vmode[0].vi_mode = EOT; 620 621 vmbuf = (u_char *)vm86_addpage(&vesa_vmcontext, 1, 0); 622 bzero(&vmf, sizeof(vmf)); /* paranoia */ 623 bcopy("VBE2", vmbuf, 4); /* try for VBE2 data */ 624 vmf.vmf_eax = 0x4f00; 625 vm86_getptr(&vesa_vmcontext, (vm_offset_t)vmbuf, &vmf.vmf_es, &vmf.vmf_di); 626 627 err = vm86_datacall(0x10, &vmf, &vesa_vmcontext); 628 if ((err != 0) || (vmf.vmf_eax != 0x4f) || bcmp("VESA", vmbuf, 4)) 629 return 1; 630 bcopy(vmbuf, buf, sizeof(buf)); 631 vesa_adp_info = (struct vesa_info *)buf; 632 if (bootverbose) { 633 printf("VESA: information block\n"); 634 dump_buffer(buf, 64); 635 } 636 if (vesa_adp_info->v_flags & V_NONVGA) 637 return 1; 638 if (vesa_adp_info->v_version < 0x0102) { 639 printf("VESA: VBE version %d.%d is not supported; " 640 "version 1.2 or later is required.\n", 641 ((vesa_adp_info->v_version & 0xf000) >> 12) * 10 642 + ((vesa_adp_info->v_version & 0x0f00) >> 8), 643 ((vesa_adp_info->v_version & 0x00f0) >> 4) * 10 644 + (vesa_adp_info->v_version & 0x000f)); 645 return 1; 646 } 647 648 /* fix string ptrs */ 649 vesa_oemstr = (char *)vesa_fix_ptr(vesa_adp_info->v_oemstr, 650 vmf.vmf_es, vmf.vmf_di, buf); 651 if (vesa_adp_info->v_version >= 0x0200) { 652 vesa_venderstr = 653 (char *)vesa_fix_ptr(vesa_adp_info->v_venderstr, 654 vmf.vmf_es, vmf.vmf_di, buf); 655 vesa_prodstr = 656 (char *)vesa_fix_ptr(vesa_adp_info->v_prodstr, 657 vmf.vmf_es, vmf.vmf_di, buf); 658 vesa_revstr = 659 (char *)vesa_fix_ptr(vesa_adp_info->v_revstr, 660 vmf.vmf_es, vmf.vmf_di, buf); 661 } 662 663 /* obtain video mode information */ 664 vesa_vmodetab = (u_int16_t *)vesa_fix_ptr(vesa_adp_info->v_modetable, 665 vmf.vmf_es, vmf.vmf_di, buf); 666 if (vesa_vmodetab == NULL) 667 return 1; 668 for (i = 0, modes = 0; 669 (i < (M_VESA_MODE_MAX - M_VESA_BASE + 1)) 670 && (vesa_vmodetab[i] != 0xffff); ++i) { 671 if (vesa_bios_get_mode(vesa_vmodetab[i], &vmode)) 672 continue; 673 674 /* reject unsupported modes */ 675#if 0 676 if ((vmode.v_modeattr & (V_MODESUPP | V_MODEOPTINFO 677 | V_MODENONVGA)) 678 != (V_MODESUPP | V_MODEOPTINFO)) 679 continue; 680#else 681 if ((vmode.v_modeattr & (V_MODEOPTINFO | V_MODENONVGA)) 682 != (V_MODEOPTINFO)) 683 continue; 684#endif 685 686 /* expand the array if necessary */ 687 if (modes >= vesa_vmode_max) { 688 vesa_vmode_max += MODE_TABLE_DELTA; 689 p = malloc(sizeof(*vesa_vmode)*(vesa_vmode_max + 1), 690 M_DEVBUF, M_WAITOK); 691#if VESA_DEBUG > 1 692 printf("vesa_bios_init(): modes:%d, vesa_mode_max:%d\n", 693 modes, vesa_mode_max); 694#endif 695 if (modes > 0) { 696 bcopy(vesa_vmode, p, sizeof(*vesa_vmode)*modes); 697 free(vesa_vmode, M_DEVBUF); 698 } 699 vesa_vmode = p; 700 } 701 702 /* copy some fields */ 703 bzero(&vesa_vmode[modes], sizeof(vesa_vmode[modes])); 704 vesa_vmode[modes].vi_mode = vesa_vmodetab[i]; 705 vesa_vmode[modes].vi_width = vmode.v_width; 706 vesa_vmode[modes].vi_height = vmode.v_height; 707 vesa_vmode[modes].vi_depth = vmode.v_bpp; 708 vesa_vmode[modes].vi_planes = vmode.v_planes; 709 vesa_vmode[modes].vi_cwidth = vmode.v_cwidth; 710 vesa_vmode[modes].vi_cheight = vmode.v_cheight; 711 vesa_vmode[modes].vi_window = (u_int)vmode.v_waseg << 4; 712 /* XXX window B */ 713 vesa_vmode[modes].vi_window_size = vmode.v_wsize*1024; 714 vesa_vmode[modes].vi_window_gran = vmode.v_wgran*1024; 715 if (vmode.v_modeattr & V_MODELFB) 716 vesa_vmode[modes].vi_buffer = vmode.v_lfb; 717 else 718 vesa_vmode[modes].vi_buffer = 0; 719 /* XXX */ 720 vesa_vmode[modes].vi_buffer_size 721 = vesa_adp_info->v_memsize*64*1024; 722#if 0 723 if (vmode.v_offscreen > vmode.v_lfb) 724 vesa_vmode[modes].vi_buffer_size 725 = vmode.v_offscreen + vmode.v_offscreensize*1024 726 - vmode.v_lfb; 727 else 728 vesa_vmode[modes].vi_buffer_size 729 = vmode.v_offscreen + vmode.v_offscreensize*1024 730#endif 731 vesa_vmode[modes].vi_mem_model 732 = vesa_translate_mmodel(vmode.v_memmodel); 733 vesa_vmode[modes].vi_pixel_fields[0] = 0; 734 vesa_vmode[modes].vi_pixel_fields[1] = 0; 735 vesa_vmode[modes].vi_pixel_fields[2] = 0; 736 vesa_vmode[modes].vi_pixel_fields[3] = 0; 737 vesa_vmode[modes].vi_pixel_fsizes[0] = 0; 738 vesa_vmode[modes].vi_pixel_fsizes[1] = 0; 739 vesa_vmode[modes].vi_pixel_fsizes[2] = 0; 740 vesa_vmode[modes].vi_pixel_fsizes[3] = 0; 741 if (vesa_vmode[modes].vi_mem_model == V_INFO_MM_PACKED) { 742 vesa_vmode[modes].vi_pixel_size = (vmode.v_bpp + 7)/8; 743 } else if (vesa_vmode[modes].vi_mem_model == V_INFO_MM_DIRECT) { 744 vesa_vmode[modes].vi_pixel_size = (vmode.v_bpp + 7)/8; 745 vesa_vmode[modes].vi_pixel_fields[0] 746 = vmode.v_redfieldpos; 747 vesa_vmode[modes].vi_pixel_fields[1] 748 = vmode.v_greenfieldpos; 749 vesa_vmode[modes].vi_pixel_fields[2] 750 = vmode.v_bluefieldpos; 751 vesa_vmode[modes].vi_pixel_fields[3] 752 = vmode.v_resfieldpos; 753 vesa_vmode[modes].vi_pixel_fsizes[0] 754 = vmode.v_redmasksize; 755 vesa_vmode[modes].vi_pixel_fsizes[1] 756 = vmode.v_greenmasksize; 757 vesa_vmode[modes].vi_pixel_fsizes[2] 758 = vmode.v_bluemasksize; 759 vesa_vmode[modes].vi_pixel_fsizes[3] 760 = vmode.v_resmasksize; 761 } else { 762 vesa_vmode[modes].vi_pixel_size = 0; 763 } 764 765 vesa_vmode[modes].vi_flags 766 = vesa_translate_flags(vmode.v_modeattr) | V_INFO_VESA; 767 ++modes; 768 } 769 vesa_vmode[modes].vi_mode = EOT; 770 if (bootverbose) 771 printf("VESA: %d mode(s) found\n", modes); 772 773 has_vesa_bios = (modes > 0); 774 return (has_vesa_bios ? 0 : 1); 775} 776 777static void 778vesa_clear_modes(video_info_t *info, int color) 779{ 780 while (info->vi_mode != EOT) { 781 if ((info->vi_flags & V_INFO_COLOR) != color) 782 info->vi_mode = NA; 783 ++info; 784 } 785} 786 787static vm_offset_t 788vesa_map_buffer(u_int paddr, size_t size) 789{ 790 vm_offset_t vaddr; 791 u_int off; 792 793 off = paddr - trunc_page(paddr); 794 vaddr = (vm_offset_t)pmap_mapdev(paddr - off, size + off); 795#if VESA_DEBUG > 1 796 printf("vesa_map_buffer: paddr:%x vaddr:%x size:%x off:%x\n", 797 paddr, vaddr, size, off); 798#endif 799 return (vaddr + off); 800} 801 802static void 803vesa_unmap_buffer(vm_offset_t vaddr, size_t size) 804{ 805#if VESA_DEBUG > 1 806 printf("vesa_unmap_buffer: vaddr:%x size:%x\n", vaddr, size); 807#endif 808 kmem_free(kernel_map, vaddr, size); 809} 810 811/* entry points */ 812 813static int 814vesa_configure(int flags) 815{ 816 video_adapter_t *adp; 817 int adapters; 818 int error; 819 int i; 820 821 if (vesa_init_done) 822 return 0; 823 if (flags & VIO_PROBE_ONLY) 824 return 0; /* XXX */ 825 826 /* 827 * If the VESA module has already been loaded, abort loading 828 * the module this time. 829 */ 830 for (i = 0; (adp = vid_get_adapter(i)) != NULL; ++i) { 831 if (adp->va_flags & V_ADP_VESA) 832 return ENXIO; 833 if (adp->va_type == KD_VGA) 834 break; 835 } 836 /* 837 * The VGA adapter is not found. This is because either 838 * 1) the VGA driver has not been initialized, or 2) the VGA card 839 * is not present. If 1) is the case, we shall defer 840 * initialization for now and try again later. 841 */ 842 if (adp == NULL) { 843 vga_sub_configure = vesa_configure; 844 return ENODEV; 845 } 846 847 /* count number of registered adapters */ 848 for (++i; vid_get_adapter(i) != NULL; ++i) 849 ; 850 adapters = i; 851 852 /* call VESA BIOS */ 853 vesa_adp = adp; 854 if (vesa_bios_init()) { 855 vesa_adp = NULL; 856 return ENXIO; 857 } 858 vesa_adp->va_flags |= V_ADP_VESA; 859 860 /* remove conflicting modes if we have more than one adapter */ 861 if (adapters > 1) { 862 vesa_clear_modes(vesa_vmode, 863 (vesa_adp->va_flags & V_ADP_COLOR) ? 864 V_INFO_COLOR : 0); 865 } 866 867 if ((error = vesa_load_ioctl()) == 0) { 868 prevvidsw = vidsw[vesa_adp->va_index]; 869 vidsw[vesa_adp->va_index] = &vesavidsw; 870 vesa_init_done = TRUE; 871 } else { 872 vesa_adp = NULL; 873 return error; 874 } 875 876 return 0; 877} 878 879#if 0 880static int 881vesa_nop(void) 882{ 883 return 0; 884} 885#endif 886 887static int 888vesa_error(void) 889{ 890 return 1; 891} 892 893static int 894vesa_probe(int unit, video_adapter_t **adpp, void *arg, int flags) 895{ 896 return (*prevvidsw->probe)(unit, adpp, arg, flags); 897} 898 899static int 900vesa_init(int unit, video_adapter_t *adp, int flags) 901{ 902 return (*prevvidsw->init)(unit, adp, flags); 903} 904 905static int 906vesa_get_info(video_adapter_t *adp, int mode, video_info_t *info) 907{ 908 int i; 909 910 if ((*prevvidsw->get_info)(adp, mode, info) == 0) 911 return 0; 912 913 if (adp != vesa_adp) 914 return 1; 915 916 mode = vesa_map_gen_mode_num(vesa_adp->va_type, 917 vesa_adp->va_flags & V_ADP_COLOR, mode); 918 for (i = 0; vesa_vmode[i].vi_mode != EOT; ++i) { 919 if (vesa_vmode[i].vi_mode == NA) 920 continue; 921 if (vesa_vmode[i].vi_mode == mode) { 922 *info = vesa_vmode[i]; 923 return 0; 924 } 925 } 926 return 1; 927} 928 929static int 930vesa_query_mode(video_adapter_t *adp, video_info_t *info) 931{ 932 int i; 933 934 if ((i = (*prevvidsw->query_mode)(adp, info)) != -1) 935 return i; 936 if (adp != vesa_adp) 937 return -1; 938 939 for (i = 0; vesa_vmode[i].vi_mode != EOT; ++i) { 940 if ((info->vi_width != 0) 941 && (info->vi_width != vesa_vmode[i].vi_width)) 942 continue; 943 if ((info->vi_height != 0) 944 && (info->vi_height != vesa_vmode[i].vi_height)) 945 continue; 946 if ((info->vi_cwidth != 0) 947 && (info->vi_cwidth != vesa_vmode[i].vi_cwidth)) 948 continue; 949 if ((info->vi_cheight != 0) 950 && (info->vi_cheight != vesa_vmode[i].vi_cheight)) 951 continue; 952 if ((info->vi_depth != 0) 953 && (info->vi_depth != vesa_vmode[i].vi_depth)) 954 continue; 955 if ((info->vi_planes != 0) 956 && (info->vi_planes != vesa_vmode[i].vi_planes)) 957 continue; 958 /* pixel format, memory model */ 959 if ((info->vi_flags != 0) 960 && (info->vi_flags != vesa_vmode[i].vi_flags)) 961 continue; 962 return vesa_vmode[i].vi_mode; 963 } 964 return -1; 965} 966 967static int 968vesa_set_mode(video_adapter_t *adp, int mode) 969{ 970 video_info_t info; 971 int len; 972 973 if (adp != vesa_adp) 974 return (*prevvidsw->set_mode)(adp, mode); 975 976 mode = vesa_map_gen_mode_num(adp->va_type, 977 adp->va_flags & V_ADP_COLOR, mode); 978#if VESA_DEBUG > 0 979 printf("VESA: set_mode(): %d(%x) -> %d(%x)\n", 980 adp->va_mode, adp->va_mode, mode, mode); 981#endif 982 /* 983 * If the current mode is a VESA mode and the new mode is not, 984 * restore the state of the adapter first by setting one of the 985 * standard VGA mode, so that non-standard, extended SVGA registers 986 * are set to the state compatible with the standard VGA modes. 987 * Otherwise (*prevvidsw->set_mode)() may not be able to set up 988 * the new mode correctly. 989 */ 990 if (VESA_MODE(adp->va_mode)) { 991 if ((*prevvidsw->get_info)(adp, mode, &info) == 0) { 992 int10_set_mode(adp->va_initial_bios_mode); 993 if (adp->va_info.vi_flags & V_INFO_LINEAR) 994 vesa_unmap_buffer(adp->va_buffer, 995 vesa_adp_info->v_memsize*64*1024); 996 /* 997 * Once (*prevvidsw->get_info)() succeeded, 998 * (*prevvidsw->set_mode)() below won't fail... 999 */ 1000 } 1001 } 1002 1003 /* we may not need to handle this mode after all... */ 1004 if ((*prevvidsw->set_mode)(adp, mode) == 0) 1005 return 0; 1006 1007 /* is the new mode supported? */ 1008 if (vesa_get_info(adp, mode, &info)) 1009 return 1; 1010 /* assert(VESA_MODE(mode)); */ 1011 1012#if VESA_DEBUG > 0 1013 printf("VESA: about to set a VESA mode...\n"); 1014#endif 1015 /* don't use the linear frame buffer for text modes. XXX */ 1016 if (!(info.vi_flags & V_INFO_GRAPHICS)) 1017 info.vi_flags &= ~V_INFO_LINEAR; 1018 1019 if (vesa_bios_set_mode(mode | ((info.vi_flags & V_INFO_LINEAR) ? 0x4000 : 0))) 1020 return 1; 1021 1022 if (adp->va_info.vi_flags & V_INFO_LINEAR) 1023 vesa_unmap_buffer(adp->va_buffer, 1024 vesa_adp_info->v_memsize*64*1024); 1025 1026#if VESA_DEBUG > 0 1027 printf("VESA: mode set!\n"); 1028#endif 1029 vesa_adp->va_mode = mode; 1030 vesa_adp->va_flags &= ~V_ADP_COLOR; 1031 vesa_adp->va_flags |= 1032 (info.vi_flags & V_INFO_COLOR) ? V_ADP_COLOR : 0; 1033 vesa_adp->va_crtc_addr = 1034 (vesa_adp->va_flags & V_ADP_COLOR) ? COLOR_CRTC : MONO_CRTC; 1035 if (info.vi_flags & V_INFO_LINEAR) { 1036#if VESA_DEBUG > 1 1037 printf("VESA: setting up LFB\n"); 1038#endif 1039 vesa_adp->va_buffer = 1040 vesa_map_buffer(info.vi_buffer, 1041 vesa_adp_info->v_memsize*64*1024); 1042 vesa_adp->va_buffer_size = info.vi_buffer_size; 1043 vesa_adp->va_window = vesa_adp->va_buffer; 1044 vesa_adp->va_window_size = info.vi_buffer_size/info.vi_planes; 1045 vesa_adp->va_window_gran = info.vi_buffer_size/info.vi_planes; 1046 } else { 1047 vesa_adp->va_buffer = 0; 1048 vesa_adp->va_buffer_size = info.vi_buffer_size; 1049 vesa_adp->va_window = BIOS_PADDRTOVADDR(info.vi_window); 1050 vesa_adp->va_window_size = info.vi_window_size; 1051 vesa_adp->va_window_gran = info.vi_window_gran; 1052 } 1053 vesa_adp->va_window_orig = 0; 1054 len = vesa_bios_get_line_length(); 1055 if (len > 0) { 1056 vesa_adp->va_line_width = len; 1057 } else if (info.vi_flags & V_INFO_GRAPHICS) { 1058 switch (info.vi_depth/info.vi_planes) { 1059 case 1: 1060 vesa_adp->va_line_width = info.vi_width/8; 1061 break; 1062 case 2: 1063 vesa_adp->va_line_width = info.vi_width/4; 1064 break; 1065 case 4: 1066 vesa_adp->va_line_width = info.vi_width/2; 1067 break; 1068 case 8: 1069 default: /* shouldn't happen */ 1070 vesa_adp->va_line_width = info.vi_width; 1071 break; 1072 } 1073 } else { 1074 vesa_adp->va_line_width = info.vi_width; 1075 } 1076 vesa_adp->va_disp_start.x = 0; 1077 vesa_adp->va_disp_start.y = 0; 1078#if VESA_DEBUG > 0 1079 printf("vesa_set_mode(): vi_width:%d, len:%d, line_width:%d\n", 1080 info.vi_width, len, vesa_adp->va_line_width); 1081#endif 1082 bcopy(&info, &vesa_adp->va_info, sizeof(vesa_adp->va_info)); 1083 1084 /* move hardware cursor out of the way */ 1085 (*vidsw[vesa_adp->va_index]->set_hw_cursor)(vesa_adp, -1, -1); 1086 1087 return 0; 1088} 1089 1090static int 1091vesa_save_font(video_adapter_t *adp, int page, int fontsize, u_char *data, 1092 int ch, int count) 1093{ 1094 return (*prevvidsw->save_font)(adp, page, fontsize, data, ch, count); 1095} 1096 1097static int 1098vesa_load_font(video_adapter_t *adp, int page, int fontsize, u_char *data, 1099 int ch, int count) 1100{ 1101 return (*prevvidsw->load_font)(adp, page, fontsize, data, ch, count); 1102} 1103 1104static int 1105vesa_show_font(video_adapter_t *adp, int page) 1106{ 1107 return (*prevvidsw->show_font)(adp, page); 1108} 1109 1110static int 1111vesa_save_palette(video_adapter_t *adp, u_char *palette) 1112{ 1113 int bits; 1114 int error; 1115 1116 if ((adp == vesa_adp) && (vesa_adp_info->v_flags & V_DAC8) 1117 && VESA_MODE(adp->va_mode)) { 1118 bits = vesa_bios_get_dac(); 1119 error = vesa_bios_save_palette(0, 256, palette, bits); 1120 if (error == 0) 1121 return 0; 1122 if (bits != 6) 1123 return error; 1124 } 1125 1126 return (*prevvidsw->save_palette)(adp, palette); 1127} 1128 1129static int 1130vesa_load_palette(video_adapter_t *adp, u_char *palette) 1131{ 1132#if notyet 1133 int bits; 1134 int error; 1135 1136 if ((adp == vesa_adp) && (vesa_adp_info->v_flags & V_DAC8) 1137 && VESA_MODE(adp->va_mode) && ((bits = vesa_bios_set_dac(8)) > 6)) { 1138 error = vesa_bios_load_palette(0, 256, palette, bits); 1139 if (error == 0) 1140 return 0; 1141 if (vesa_bios_set_dac(6) != 6) 1142 return 1; 1143 } 1144#endif /* notyet */ 1145 1146 return (*prevvidsw->load_palette)(adp, palette); 1147} 1148 1149static int 1150vesa_set_border(video_adapter_t *adp, int color) 1151{ 1152 return (*prevvidsw->set_border)(adp, color); 1153} 1154 1155static int 1156vesa_save_state(video_adapter_t *adp, void *p, size_t size) 1157{ 1158 if (adp != vesa_adp) 1159 return (*prevvidsw->save_state)(adp, p, size); 1160 1161 if (vesa_state_buf_size == 0) 1162 vesa_state_buf_size = vesa_bios_state_buf_size(); 1163 if (size == 0) 1164 return (sizeof(int) + vesa_state_buf_size); 1165 else if (size < (sizeof(int) + vesa_state_buf_size)) 1166 return 1; 1167 1168 ((adp_state_t *)p)->sig = V_STATE_SIG; 1169 bzero(((adp_state_t *)p)->regs, vesa_state_buf_size); 1170 return vesa_bios_save_restore(STATE_SAVE, ((adp_state_t *)p)->regs, 1171 vesa_state_buf_size); 1172} 1173 1174static int 1175vesa_load_state(video_adapter_t *adp, void *p) 1176{ 1177 if ((adp != vesa_adp) || (((adp_state_t *)p)->sig != V_STATE_SIG)) 1178 return (*prevvidsw->load_state)(adp, p); 1179 1180 return vesa_bios_save_restore(STATE_LOAD, ((adp_state_t *)p)->regs, 1181 vesa_state_buf_size); 1182} 1183 1184#if 0 1185static int 1186vesa_get_origin(video_adapter_t *adp, off_t *offset) 1187{ 1188 struct vm86frame vmf; 1189 int err; 1190 1191 bzero(&vmf, sizeof(vmf)); 1192 vmf.vmf_eax = 0x4f05; 1193 vmf.vmf_ebx = 0x10; /* WINDOW_A, XXX */ 1194 err = vm86_intcall(0x10, &vmf); 1195 if ((err != 0) || (vmf.vmf_eax != 0x4f)) 1196 return 1; 1197 *offset = vmf.vmf_dx*adp->va_window_gran; 1198 return 0; 1199} 1200#endif 1201 1202static int 1203vesa_set_origin(video_adapter_t *adp, off_t offset) 1204{ 1205 struct vm86frame vmf; 1206 int err; 1207 1208 /* 1209 * This function should return as quickly as possible to 1210 * maintain good performance of the system. For this reason, 1211 * error checking is kept minimal and let the VESA BIOS to 1212 * detect error. 1213 */ 1214 if (adp != vesa_adp) 1215 return (*prevvidsw->set_win_org)(adp, offset); 1216 1217 /* if this is a linear frame buffer, do nothing */ 1218 if (adp->va_info.vi_flags & V_INFO_LINEAR) 1219 return 0; 1220 /* XXX */ 1221 if (adp->va_window_gran == 0) 1222 return 1; 1223 1224 bzero(&vmf, sizeof(vmf)); 1225 vmf.vmf_eax = 0x4f05; 1226 vmf.vmf_ebx = 0; /* WINDOW_A, XXX */ 1227 vmf.vmf_edx = offset/adp->va_window_gran; 1228 err = vm86_intcall(0x10, &vmf); 1229 if ((err != 0) || (vmf.vmf_eax != 0x4f)) 1230 return 1; 1231 bzero(&vmf, sizeof(vmf)); 1232 vmf.vmf_eax = 0x4f05; 1233 vmf.vmf_ebx = 1; /* WINDOW_B, XXX */ 1234 vmf.vmf_edx = offset/adp->va_window_gran; 1235 err = vm86_intcall(0x10, &vmf); 1236 adp->va_window_orig = (offset/adp->va_window_gran)*adp->va_window_gran; 1237 return 0; /* XXX */ 1238} 1239 1240static int 1241vesa_read_hw_cursor(video_adapter_t *adp, int *col, int *row) 1242{ 1243 return (*prevvidsw->read_hw_cursor)(adp, col, row); 1244} 1245 1246static int 1247vesa_set_hw_cursor(video_adapter_t *adp, int col, int row) 1248{ 1249 return (*prevvidsw->set_hw_cursor)(adp, col, row); 1250} 1251 1252static int 1253vesa_set_hw_cursor_shape(video_adapter_t *adp, int base, int height, 1254 int celsize, int blink) 1255{ 1256 return (*prevvidsw->set_hw_cursor_shape)(adp, base, height, celsize, 1257 blink); 1258} 1259 1260static int 1261vesa_blank_display(video_adapter_t *adp, int mode) 1262{ 1263 /* XXX: use VESA DPMS */ 1264 return (*prevvidsw->blank_display)(adp, mode); 1265} 1266 1267static int 1268vesa_mmap(video_adapter_t *adp, vm_offset_t offset, int prot) 1269{ 1270#if VESA_DEBUG > 0 1271 printf("vesa_mmap(): window:0x%x, buffer:0x%x, offset:0x%x\n", 1272 adp->va_info.vi_window, adp->va_info.vi_buffer, offset); 1273#endif 1274 1275 if ((adp == vesa_adp) && (adp->va_info.vi_flags & V_INFO_LINEAR)) { 1276 /* va_window_size == va_buffer_size/vi_planes */ 1277 /* XXX: is this correct? */ 1278 if (offset > adp->va_window_size - PAGE_SIZE) 1279 return -1; 1280#ifdef __i386__ 1281 return i386_btop(adp->va_info.vi_buffer + offset); 1282#endif 1283#ifdef __alpha__ /* XXX */ 1284 return alpha_btop(adp->va_info.vi_buffer + offset); 1285#endif 1286 } else { 1287 return (*prevvidsw->mmap)(adp, offset, prot); 1288 } 1289} 1290 1291static int 1292vesa_clear(video_adapter_t *adp) 1293{ 1294 return (*prevvidsw->clear)(adp); 1295} 1296 1297static int 1298vesa_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 1299{ 1300 return (*prevvidsw->fill_rect)(adp, val, x, y, cx, cy); 1301} 1302 1303static int 1304vesa_bitblt(video_adapter_t *adp,...) 1305{ 1306 /* FIXME */ 1307 return 1; 1308} 1309 1310static int 1311get_palette(video_adapter_t *adp, int base, int count, 1312 u_char *red, u_char *green, u_char *blue, u_char *trans) 1313{ 1314 u_char *r; 1315 u_char *g; 1316 u_char *b; 1317 int bits; 1318 int error; 1319 1320 if ((base < 0) || (base >= 256) || (base + count > 256)) 1321 return 1; 1322 if (!(vesa_adp_info->v_flags & V_DAC8) || !VESA_MODE(adp->va_mode)) 1323 return 1; 1324 1325 bits = vesa_bios_get_dac(); 1326 if (bits <= 6) 1327 return 1; 1328 1329 r = malloc(count*3, M_DEVBUF, M_WAITOK); 1330 g = r + count; 1331 b = g + count; 1332 error = vesa_bios_save_palette2(base, count, r, g, b, bits); 1333 if (error == 0) { 1334 copyout(r, red, count); 1335 copyout(g, green, count); 1336 copyout(b, blue, count); 1337 if (trans != NULL) { 1338 bzero(r, count); 1339 copyout(r, trans, count); 1340 } 1341 } 1342 free(r, M_DEVBUF); 1343 1344 /* if error && bits != 6 at this point, we are in in trouble... XXX */ 1345 return error; 1346} 1347 1348static int 1349set_palette(video_adapter_t *adp, int base, int count, 1350 u_char *red, u_char *green, u_char *blue, u_char *trans) 1351{ 1352 return 1; 1353#if notyet 1354 u_char *r; 1355 u_char *g; 1356 u_char *b; 1357 int bits; 1358 int error; 1359 1360 if ((base < 0) || (base >= 256) || (base + count > 256)) 1361 return 1; 1362 if (!(vesa_adp_info->v_flags & V_DAC8) || !VESA_MODE(adp->va_mode) 1363 || ((bits = vesa_bios_set_dac(8)) <= 6)) 1364 return 1; 1365 1366 r = malloc(count*3, M_DEVBUF, M_WAITOK); 1367 g = r + count; 1368 b = g + count; 1369 copyin(red, r, count); 1370 copyin(green, g, count); 1371 copyin(blue, b, count); 1372 1373 error = vesa_bios_load_palette2(base, count, r, g, b, bits); 1374 free(r, M_DEVBUF); 1375 if (error == 0) 1376 return 0; 1377 1378 /* if the following call fails, we are in trouble... XXX */ 1379 vesa_bios_set_dac(6); 1380 return 1; 1381#endif /* notyet */ 1382} 1383 1384static int 1385vesa_ioctl(video_adapter_t *adp, u_long cmd, caddr_t arg) 1386{ 1387 if (adp != vesa_adp) 1388 return (*prevvidsw->ioctl)(adp, cmd, arg); 1389 1390 switch (cmd) { 1391 case FBIO_SETWINORG: /* set frame buffer window origin */ 1392 return (vesa_set_origin(adp, *(off_t *)arg) ? ENODEV : 0); 1393 1394 case FBIO_SETDISPSTART: /* set display start address */ 1395 if (vesa_bios_set_start(((video_display_start_t *)arg)->x, 1396 ((video_display_start_t *)arg)->y)) 1397 return ENODEV; 1398 adp->va_disp_start.x = ((video_display_start_t *)arg)->x; 1399 adp->va_disp_start.y = ((video_display_start_t *)arg)->y; 1400 return 0; 1401 1402 case FBIO_SETLINEWIDTH: /* set line length in pixel */ 1403 if (vesa_bios_set_line_length(*(u_int *)arg)) 1404 return ENODEV; 1405 adp->va_line_width = (*(u_int *)arg + 7)/8; 1406 return 0; 1407 1408 case FBIO_GETPALETTE: /* get color palette */ 1409 if (get_palette(adp, ((video_color_palette_t *)arg)->index, 1410 ((video_color_palette_t *)arg)->count, 1411 ((video_color_palette_t *)arg)->red, 1412 ((video_color_palette_t *)arg)->green, 1413 ((video_color_palette_t *)arg)->blue, 1414 ((video_color_palette_t *)arg)->transparent)) 1415 return (*prevvidsw->ioctl)(adp, cmd, arg); 1416 return 0; 1417 1418 1419 case FBIO_SETPALETTE: /* set color palette */ 1420 if (set_palette(adp, ((video_color_palette_t *)arg)->index, 1421 ((video_color_palette_t *)arg)->count, 1422 ((video_color_palette_t *)arg)->red, 1423 ((video_color_palette_t *)arg)->green, 1424 ((video_color_palette_t *)arg)->blue, 1425 ((video_color_palette_t *)arg)->transparent)) 1426 return (*prevvidsw->ioctl)(adp, cmd, arg); 1427 return 0; 1428 1429 case FBIOGETCMAP: /* get color palette */ 1430 if (get_palette(adp, ((struct fbcmap *)arg)->index, 1431 ((struct fbcmap *)arg)->count, 1432 ((struct fbcmap *)arg)->red, 1433 ((struct fbcmap *)arg)->green, 1434 ((struct fbcmap *)arg)->blue, NULL)) 1435 return (*prevvidsw->ioctl)(adp, cmd, arg); 1436 return 0; 1437 1438 case FBIOPUTCMAP: /* set color palette */ 1439 if (set_palette(adp, ((struct fbcmap *)arg)->index, 1440 ((struct fbcmap *)arg)->count, 1441 ((struct fbcmap *)arg)->red, 1442 ((struct fbcmap *)arg)->green, 1443 ((struct fbcmap *)arg)->blue, NULL)) 1444 return (*prevvidsw->ioctl)(adp, cmd, arg); 1445 return 0; 1446 1447 default: 1448 return (*prevvidsw->ioctl)(adp, cmd, arg); 1449 } 1450} 1451 1452static int 1453vesa_diag(video_adapter_t *adp, int level) 1454{ 1455 int error; 1456 1457 /* call the previous handler first */ 1458 error = (*prevvidsw->diag)(adp, level); 1459 if (error) 1460 return error; 1461 1462 if (adp != vesa_adp) 1463 return 1; 1464 1465 if (level <= 0) 1466 return 0; 1467 1468 return 0; 1469} 1470 1471static int 1472vesa_bios_info(int level) 1473{ 1474#if VESA_DEBUG > 1 1475 struct vesa_mode vmode; 1476 int i; 1477#endif 1478 1479 /* general adapter information */ 1480 printf("VESA: v%d.%d, %dk memory, flags:0x%x, mode table:%p (%x)\n", 1481 ((vesa_adp_info->v_version & 0xf000) >> 12) * 10 1482 + ((vesa_adp_info->v_version & 0x0f00) >> 8), 1483 ((vesa_adp_info->v_version & 0x00f0) >> 4) * 10 1484 + (vesa_adp_info->v_version & 0x000f), 1485 vesa_adp_info->v_memsize * 64, vesa_adp_info->v_flags, 1486 vesa_vmodetab, vesa_adp_info->v_modetable); 1487 /* OEM string */ 1488 if (vesa_oemstr != NULL) 1489 printf("VESA: %s\n", vesa_oemstr); 1490 1491 if (level <= 0) 1492 return 0; 1493 1494 if (vesa_adp_info->v_version >= 0x0200) { 1495 /* vender name, product name, product revision */ 1496 printf("VESA: %s %s %s\n", 1497 (vesa_venderstr != NULL) ? vesa_venderstr : "unknown", 1498 (vesa_prodstr != NULL) ? vesa_prodstr : "unknown", 1499 (vesa_revstr != NULL) ? vesa_revstr : "?"); 1500 } 1501 1502#if VESA_DEBUG > 1 1503 /* mode information */ 1504 for (i = 0; 1505 (i < (M_VESA_MODE_MAX - M_VESA_BASE + 1)) 1506 && (vesa_vmodetab[i] != 0xffff); ++i) { 1507 if (vesa_bios_get_mode(vesa_vmodetab[i], &vmode)) 1508 continue; 1509 1510 /* print something for diagnostic purpose */ 1511 printf("VESA: mode:0x%03x, flags:0x%04x", 1512 vesa_vmodetab[i], vmode.v_modeattr); 1513 if (vmode.v_modeattr & V_MODEOPTINFO) { 1514 if (vmode.v_modeattr & V_MODEGRAPHICS) { 1515 printf(", G %dx%dx%d %d, ", 1516 vmode.v_width, vmode.v_height, 1517 vmode.v_bpp, vmode.v_planes); 1518 } else { 1519 printf(", T %dx%d, ", 1520 vmode.v_width, vmode.v_height); 1521 } 1522 printf("font:%dx%d, ", 1523 vmode.v_cwidth, vmode.v_cheight); 1524 printf("pages:%d, mem:%d", 1525 vmode.v_ipages + 1, vmode.v_memmodel); 1526 } 1527 if (vmode.v_modeattr & V_MODELFB) { 1528 printf("\nVESA: LFB:0x%x, off:0x%x, off_size:0x%x", 1529 vmode.v_lfb, vmode.v_offscreen, 1530 vmode.v_offscreensize*1024); 1531 } 1532 printf("\n"); 1533 printf("VESA: window A:0x%x (%x), window B:0x%x (%x), ", 1534 vmode.v_waseg, vmode.v_waattr, 1535 vmode.v_wbseg, vmode.v_wbattr); 1536 printf("size:%dk, gran:%dk\n", 1537 vmode.v_wsize, vmode.v_wgran); 1538 } 1539#endif /* VESA_DEBUG > 1 */ 1540 1541 return 0; 1542} 1543 1544/* module loading */ 1545 1546static int 1547vesa_load(void) 1548{ 1549 int error; 1550 int s; 1551 1552 if (vesa_init_done) 1553 return 0; 1554 1555 /* locate a VGA adapter */ 1556 s = spltty(); 1557 vesa_adp = NULL; 1558 error = vesa_configure(0); 1559 splx(s); 1560 1561 if (error == 0) 1562 vesa_bios_info(bootverbose); 1563 1564 return error; 1565} 1566 1567static int 1568vesa_unload(void) 1569{ 1570 u_char palette[256*3]; 1571 int error; 1572 int bits; 1573 int s; 1574 1575 /* if the adapter is currently in a VESA mode, don't unload */ 1576 if ((vesa_adp != NULL) && VESA_MODE(vesa_adp->va_mode)) 1577 return EBUSY; 1578 /* 1579 * FIXME: if there is at least one vty which is in a VESA mode, 1580 * we shouldn't be unloading! XXX 1581 */ 1582 1583 s = spltty(); 1584 if ((error = vesa_unload_ioctl()) == 0) { 1585 if (vesa_adp != NULL) { 1586 if (vesa_adp_info->v_flags & V_DAC8) { 1587 bits = vesa_bios_get_dac(); 1588 if (bits > 6) { 1589 vesa_bios_save_palette(0, 256, 1590 palette, bits); 1591 vesa_bios_set_dac(6); 1592 vesa_bios_load_palette(0, 256, 1593 palette, 6); 1594 } 1595 } 1596 vesa_adp->va_flags &= ~V_ADP_VESA; 1597 vidsw[vesa_adp->va_index] = prevvidsw; 1598 } 1599 } 1600 splx(s); 1601 1602 return error; 1603} 1604 1605static int 1606vesa_mod_event(module_t mod, int type, void *data) 1607{ 1608 switch (type) { 1609 case MOD_LOAD: 1610 return vesa_load(); 1611 case MOD_UNLOAD: 1612 return vesa_unload(); 1613 default: 1614 break; 1615 } 1616 return 0; 1617} 1618 1619static moduledata_t vesa_mod = { 1620 "vesa", 1621 vesa_mod_event, 1622 NULL, 1623}; 1624 1625DECLARE_MODULE(vesa, vesa_mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE); 1626 1627#endif /* (NVGA > 0 && VESA) || KLD_MODULE */ 1628