vesa.c revision 54258
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 * $FreeBSD: head/sys/i386/isa/vesa.c 54258 1999-12-07 11:23:58Z yokota $ 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, int *bytes, int *lines); 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_ax != 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_ax != 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_ax != 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_ax != 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_ax != 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_ax != 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_ax != 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_ax != 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_ax != 0x4f)) 432 return 0; 433 return vmf.vmf_bx*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_ax != 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_ax != 0x4f)) 466 return -1; 467 return vmf.vmf_bx; /* line length in bytes */ 468} 469 470static int 471vesa_bios_set_line_length(int pixel, int *bytes, int *lines) 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 if ((err != 0) || (vmf.vmf_ax != 0x4f)) 485 return 1; 486 if (bytes) 487 *bytes = vmf.vmf_bx; 488 if (lines) 489 *lines = vmf.vmf_dx; 490 return 0; 491} 492 493#if 0 494static int 495vesa_bios_get_start(int *x, int *y) 496{ 497 struct vm86frame vmf; 498 int err; 499 500 bzero(&vmf, sizeof(vmf)); 501 vmf.vmf_eax = 0x4f07; 502 vmf.vmf_ebx = 1; /* get display start */ 503 err = vm86_intcall(0x10, &vmf); 504 if ((err != 0) || (vmf.vmf_ax != 0x4f)) 505 return 1; 506 *x = vmf.vmf_cx; 507 *y = vmf.vmf_dx; 508 return 0; 509} 510#endif 511 512static int 513vesa_bios_set_start(int x, int y) 514{ 515 struct vm86frame vmf; 516 int err; 517 518 bzero(&vmf, sizeof(vmf)); 519 vmf.vmf_eax = 0x4f07; 520 vmf.vmf_ebx = 0x80; /* set display start */ 521 vmf.vmf_edx = y; 522 vmf.vmf_ecx = x; 523 err = vm86_intcall(0x10, &vmf); 524 return ((err != 0) || (vmf.vmf_ax != 0x4f)); 525} 526 527/* map a generic video mode to a known mode */ 528static int 529vesa_map_gen_mode_num(int type, int color, int mode) 530{ 531 static struct { 532 int from; 533 int to; 534 } mode_map[] = { 535 { M_TEXT_132x25, M_VESA_C132x25 }, 536 { M_TEXT_132x43, M_VESA_C132x43 }, 537 { M_TEXT_132x50, M_VESA_C132x50 }, 538 { M_TEXT_132x60, M_VESA_C132x60 }, 539 }; 540 int i; 541 542 for (i = 0; i < sizeof(mode_map)/sizeof(mode_map[0]); ++i) { 543 if (mode_map[i].from == mode) 544 return mode_map[i].to; 545 } 546 return mode; 547} 548 549static int 550vesa_translate_flags(u_int16_t vflags) 551{ 552 static struct { 553 u_int16_t mask; 554 int set; 555 int reset; 556 } ftable[] = { 557 { V_MODECOLOR, V_INFO_COLOR, 0 }, 558 { V_MODEGRAPHICS, V_INFO_GRAPHICS, 0 }, 559 { V_MODELFB, V_INFO_LINEAR, 0 }, 560 }; 561 int flags; 562 int i; 563 564 for (flags = 0, i = 0; i < sizeof(ftable)/sizeof(ftable[0]); ++i) { 565 flags |= (vflags & ftable[i].mask) ? 566 ftable[i].set : ftable[i].reset; 567 } 568 return flags; 569} 570 571static int 572vesa_translate_mmodel(u_int8_t vmodel) 573{ 574 static struct { 575 u_int8_t vmodel; 576 int mmodel; 577 } mtable[] = { 578 { V_MMTEXT, V_INFO_MM_TEXT }, 579 { V_MMCGA, V_INFO_MM_CGA }, 580 { V_MMHGC, V_INFO_MM_HGC }, 581 { V_MMEGA, V_INFO_MM_PLANAR }, 582 { V_MMPACKED, V_INFO_MM_PACKED }, 583 { V_MMDIRCOLOR, V_INFO_MM_DIRECT }, 584 }; 585 int i; 586 587 for (i = 0; mtable[i].mmodel >= 0; ++i) { 588 if (mtable[i].vmodel == vmodel) 589 return mtable[i].mmodel; 590 } 591 return V_INFO_MM_OTHER; 592} 593 594static void 595*vesa_fix_ptr(u_int32_t p, u_int16_t seg, u_int16_t off, u_char *buf) 596{ 597 if (p == 0) 598 return NULL; 599 if (((p >> 16) == seg) && ((p & 0xffff) >= off)) 600 return (void *)(buf + ((p & 0xffff) - off)); 601 else { 602 p = BIOS_SADDRTOLADDR(p); 603 return (void *)BIOS_PADDRTOVADDR(p); 604 } 605} 606 607static int 608vesa_bios_init(void) 609{ 610 static u_char buf[512]; 611 struct vm86frame vmf; 612 struct vesa_mode vmode; 613 video_info_t *p; 614 u_char *vmbuf; 615 int modes; 616 int err; 617 int i; 618 619 if (vesa_init_done) 620 return 0; 621 622 has_vesa_bios = FALSE; 623 vesa_adp_info = NULL; 624 vesa_vmode_max = 0; 625 vesa_vmode[0].vi_mode = EOT; 626 627 vmbuf = (u_char *)vm86_addpage(&vesa_vmcontext, 1, 0); 628 bzero(&vmf, sizeof(vmf)); /* paranoia */ 629 bcopy("VBE2", vmbuf, 4); /* try for VBE2 data */ 630 vmf.vmf_eax = 0x4f00; 631 vm86_getptr(&vesa_vmcontext, (vm_offset_t)vmbuf, &vmf.vmf_es, &vmf.vmf_di); 632 633 err = vm86_datacall(0x10, &vmf, &vesa_vmcontext); 634 if ((err != 0) || (vmf.vmf_ax != 0x4f) || bcmp("VESA", vmbuf, 4)) 635 return 1; 636 bcopy(vmbuf, buf, sizeof(buf)); 637 vesa_adp_info = (struct vesa_info *)buf; 638 if (bootverbose) { 639 printf("VESA: information block\n"); 640 dump_buffer(buf, 64); 641 } 642 if (vesa_adp_info->v_flags & V_NONVGA) 643 return 1; 644 if (vesa_adp_info->v_version < 0x0102) { 645 printf("VESA: VBE version %d.%d is not supported; " 646 "version 1.2 or later is required.\n", 647 ((vesa_adp_info->v_version & 0xf000) >> 12) * 10 648 + ((vesa_adp_info->v_version & 0x0f00) >> 8), 649 ((vesa_adp_info->v_version & 0x00f0) >> 4) * 10 650 + (vesa_adp_info->v_version & 0x000f)); 651 return 1; 652 } 653 654 /* fix string ptrs */ 655 vesa_oemstr = (char *)vesa_fix_ptr(vesa_adp_info->v_oemstr, 656 vmf.vmf_es, vmf.vmf_di, buf); 657 if (vesa_adp_info->v_version >= 0x0200) { 658 vesa_venderstr = 659 (char *)vesa_fix_ptr(vesa_adp_info->v_venderstr, 660 vmf.vmf_es, vmf.vmf_di, buf); 661 vesa_prodstr = 662 (char *)vesa_fix_ptr(vesa_adp_info->v_prodstr, 663 vmf.vmf_es, vmf.vmf_di, buf); 664 vesa_revstr = 665 (char *)vesa_fix_ptr(vesa_adp_info->v_revstr, 666 vmf.vmf_es, vmf.vmf_di, buf); 667 } 668 669 /* obtain video mode information */ 670 vesa_vmodetab = (u_int16_t *)vesa_fix_ptr(vesa_adp_info->v_modetable, 671 vmf.vmf_es, vmf.vmf_di, buf); 672 if (vesa_vmodetab == NULL) 673 return 1; 674 for (i = 0, modes = 0; 675 (i < (M_VESA_MODE_MAX - M_VESA_BASE + 1)) 676 && (vesa_vmodetab[i] != 0xffff); ++i) { 677 if (vesa_bios_get_mode(vesa_vmodetab[i], &vmode)) 678 continue; 679 680 /* reject unsupported modes */ 681#if 0 682 if ((vmode.v_modeattr & (V_MODESUPP | V_MODEOPTINFO 683 | V_MODENONVGA)) 684 != (V_MODESUPP | V_MODEOPTINFO)) 685 continue; 686#else 687 if ((vmode.v_modeattr & (V_MODEOPTINFO | V_MODENONVGA)) 688 != (V_MODEOPTINFO)) 689 continue; 690#endif 691 692 /* expand the array if necessary */ 693 if (modes >= vesa_vmode_max) { 694 vesa_vmode_max += MODE_TABLE_DELTA; 695 p = malloc(sizeof(*vesa_vmode)*(vesa_vmode_max + 1), 696 M_DEVBUF, M_WAITOK); 697#if VESA_DEBUG > 1 698 printf("vesa_bios_init(): modes:%d, vesa_mode_max:%d\n", 699 modes, vesa_vmode_max); 700#endif 701 if (modes > 0) { 702 bcopy(vesa_vmode, p, sizeof(*vesa_vmode)*modes); 703 free(vesa_vmode, M_DEVBUF); 704 } 705 vesa_vmode = p; 706 } 707 708 /* copy some fields */ 709 bzero(&vesa_vmode[modes], sizeof(vesa_vmode[modes])); 710 vesa_vmode[modes].vi_mode = vesa_vmodetab[i]; 711 vesa_vmode[modes].vi_width = vmode.v_width; 712 vesa_vmode[modes].vi_height = vmode.v_height; 713 vesa_vmode[modes].vi_depth = vmode.v_bpp; 714 vesa_vmode[modes].vi_planes = vmode.v_planes; 715 vesa_vmode[modes].vi_cwidth = vmode.v_cwidth; 716 vesa_vmode[modes].vi_cheight = vmode.v_cheight; 717 vesa_vmode[modes].vi_window = (u_int)vmode.v_waseg << 4; 718 /* XXX window B */ 719 vesa_vmode[modes].vi_window_size = vmode.v_wsize*1024; 720 vesa_vmode[modes].vi_window_gran = vmode.v_wgran*1024; 721 if (vmode.v_modeattr & V_MODELFB) 722 vesa_vmode[modes].vi_buffer = vmode.v_lfb; 723 else 724 vesa_vmode[modes].vi_buffer = 0; 725 /* XXX */ 726 vesa_vmode[modes].vi_buffer_size 727 = vesa_adp_info->v_memsize*64*1024; 728#if 0 729 if (vmode.v_offscreen > vmode.v_lfb) 730 vesa_vmode[modes].vi_buffer_size 731 = vmode.v_offscreen + vmode.v_offscreensize*1024 732 - vmode.v_lfb; 733 else 734 vesa_vmode[modes].vi_buffer_size 735 = vmode.v_offscreen + vmode.v_offscreensize*1024 736#endif 737 vesa_vmode[modes].vi_mem_model 738 = vesa_translate_mmodel(vmode.v_memmodel); 739 vesa_vmode[modes].vi_pixel_fields[0] = 0; 740 vesa_vmode[modes].vi_pixel_fields[1] = 0; 741 vesa_vmode[modes].vi_pixel_fields[2] = 0; 742 vesa_vmode[modes].vi_pixel_fields[3] = 0; 743 vesa_vmode[modes].vi_pixel_fsizes[0] = 0; 744 vesa_vmode[modes].vi_pixel_fsizes[1] = 0; 745 vesa_vmode[modes].vi_pixel_fsizes[2] = 0; 746 vesa_vmode[modes].vi_pixel_fsizes[3] = 0; 747 if (vesa_vmode[modes].vi_mem_model == V_INFO_MM_PACKED) { 748 vesa_vmode[modes].vi_pixel_size = (vmode.v_bpp + 7)/8; 749 } else if (vesa_vmode[modes].vi_mem_model == V_INFO_MM_DIRECT) { 750 vesa_vmode[modes].vi_pixel_size = (vmode.v_bpp + 7)/8; 751 vesa_vmode[modes].vi_pixel_fields[0] 752 = vmode.v_redfieldpos; 753 vesa_vmode[modes].vi_pixel_fields[1] 754 = vmode.v_greenfieldpos; 755 vesa_vmode[modes].vi_pixel_fields[2] 756 = vmode.v_bluefieldpos; 757 vesa_vmode[modes].vi_pixel_fields[3] 758 = vmode.v_resfieldpos; 759 vesa_vmode[modes].vi_pixel_fsizes[0] 760 = vmode.v_redmasksize; 761 vesa_vmode[modes].vi_pixel_fsizes[1] 762 = vmode.v_greenmasksize; 763 vesa_vmode[modes].vi_pixel_fsizes[2] 764 = vmode.v_bluemasksize; 765 vesa_vmode[modes].vi_pixel_fsizes[3] 766 = vmode.v_resmasksize; 767 } else { 768 vesa_vmode[modes].vi_pixel_size = 0; 769 } 770 771 vesa_vmode[modes].vi_flags 772 = vesa_translate_flags(vmode.v_modeattr) | V_INFO_VESA; 773 ++modes; 774 } 775 vesa_vmode[modes].vi_mode = EOT; 776 if (bootverbose) 777 printf("VESA: %d mode(s) found\n", modes); 778 779 has_vesa_bios = (modes > 0); 780 return (has_vesa_bios ? 0 : 1); 781} 782 783static void 784vesa_clear_modes(video_info_t *info, int color) 785{ 786 while (info->vi_mode != EOT) { 787 if ((info->vi_flags & V_INFO_COLOR) != color) 788 info->vi_mode = NA; 789 ++info; 790 } 791} 792 793static vm_offset_t 794vesa_map_buffer(u_int paddr, size_t size) 795{ 796 vm_offset_t vaddr; 797 u_int off; 798 799 off = paddr - trunc_page(paddr); 800 vaddr = (vm_offset_t)pmap_mapdev(paddr - off, size + off); 801#if VESA_DEBUG > 1 802 printf("vesa_map_buffer: paddr:%x vaddr:%x size:%x off:%x\n", 803 paddr, vaddr, size, off); 804#endif 805 return (vaddr + off); 806} 807 808static void 809vesa_unmap_buffer(vm_offset_t vaddr, size_t size) 810{ 811#if VESA_DEBUG > 1 812 printf("vesa_unmap_buffer: vaddr:%x size:%x\n", vaddr, size); 813#endif 814 kmem_free(kernel_map, vaddr, size); 815} 816 817/* entry points */ 818 819static int 820vesa_configure(int flags) 821{ 822 video_adapter_t *adp; 823 int adapters; 824 int error; 825 int i; 826 827 if (vesa_init_done) 828 return 0; 829 if (flags & VIO_PROBE_ONLY) 830 return 0; /* XXX */ 831 832 /* 833 * If the VESA module has already been loaded, abort loading 834 * the module this time. 835 */ 836 for (i = 0; (adp = vid_get_adapter(i)) != NULL; ++i) { 837 if (adp->va_flags & V_ADP_VESA) 838 return ENXIO; 839 if (adp->va_type == KD_VGA) 840 break; 841 } 842 /* 843 * The VGA adapter is not found. This is because either 844 * 1) the VGA driver has not been initialized, or 2) the VGA card 845 * is not present. If 1) is the case, we shall defer 846 * initialization for now and try again later. 847 */ 848 if (adp == NULL) { 849 vga_sub_configure = vesa_configure; 850 return ENODEV; 851 } 852 853 /* count number of registered adapters */ 854 for (++i; vid_get_adapter(i) != NULL; ++i) 855 ; 856 adapters = i; 857 858 /* call VESA BIOS */ 859 vesa_adp = adp; 860 if (vesa_bios_init()) { 861 vesa_adp = NULL; 862 return ENXIO; 863 } 864 vesa_adp->va_flags |= V_ADP_VESA; 865 866 /* remove conflicting modes if we have more than one adapter */ 867 if (adapters > 1) { 868 vesa_clear_modes(vesa_vmode, 869 (vesa_adp->va_flags & V_ADP_COLOR) ? 870 V_INFO_COLOR : 0); 871 } 872 873 if ((error = vesa_load_ioctl()) == 0) { 874 prevvidsw = vidsw[vesa_adp->va_index]; 875 vidsw[vesa_adp->va_index] = &vesavidsw; 876 vesa_init_done = TRUE; 877 } else { 878 vesa_adp = NULL; 879 return error; 880 } 881 882 return 0; 883} 884 885#if 0 886static int 887vesa_nop(void) 888{ 889 return 0; 890} 891#endif 892 893static int 894vesa_error(void) 895{ 896 return 1; 897} 898 899static int 900vesa_probe(int unit, video_adapter_t **adpp, void *arg, int flags) 901{ 902 return (*prevvidsw->probe)(unit, adpp, arg, flags); 903} 904 905static int 906vesa_init(int unit, video_adapter_t *adp, int flags) 907{ 908 return (*prevvidsw->init)(unit, adp, flags); 909} 910 911static int 912vesa_get_info(video_adapter_t *adp, int mode, video_info_t *info) 913{ 914 int i; 915 916 if ((*prevvidsw->get_info)(adp, mode, info) == 0) 917 return 0; 918 919 if (adp != vesa_adp) 920 return 1; 921 922 mode = vesa_map_gen_mode_num(vesa_adp->va_type, 923 vesa_adp->va_flags & V_ADP_COLOR, mode); 924 for (i = 0; vesa_vmode[i].vi_mode != EOT; ++i) { 925 if (vesa_vmode[i].vi_mode == NA) 926 continue; 927 if (vesa_vmode[i].vi_mode == mode) { 928 *info = vesa_vmode[i]; 929 return 0; 930 } 931 } 932 return 1; 933} 934 935static int 936vesa_query_mode(video_adapter_t *adp, video_info_t *info) 937{ 938 int i; 939 940 if ((*prevvidsw->query_mode)(adp, info) == 0) 941 return 0; 942 if (adp != vesa_adp) 943 return ENODEV; 944 945 for (i = 0; vesa_vmode[i].vi_mode != EOT; ++i) { 946 if ((info->vi_width != 0) 947 && (info->vi_width != vesa_vmode[i].vi_width)) 948 continue; 949 if ((info->vi_height != 0) 950 && (info->vi_height != vesa_vmode[i].vi_height)) 951 continue; 952 if ((info->vi_cwidth != 0) 953 && (info->vi_cwidth != vesa_vmode[i].vi_cwidth)) 954 continue; 955 if ((info->vi_cheight != 0) 956 && (info->vi_cheight != vesa_vmode[i].vi_cheight)) 957 continue; 958 if ((info->vi_depth != 0) 959 && (info->vi_depth != vesa_vmode[i].vi_depth)) 960 continue; 961 if ((info->vi_planes != 0) 962 && (info->vi_planes != vesa_vmode[i].vi_planes)) 963 continue; 964 /* pixel format, memory model */ 965 if ((info->vi_flags != 0) 966 && (info->vi_flags != vesa_vmode[i].vi_flags)) 967 continue; 968 *info = vesa_vmode[i]; 969 return 0; 970 } 971 return ENODEV; 972} 973 974static int 975vesa_set_mode(video_adapter_t *adp, int mode) 976{ 977 video_info_t info; 978 int len; 979 980 if (adp != vesa_adp) 981 return (*prevvidsw->set_mode)(adp, mode); 982 983 mode = vesa_map_gen_mode_num(adp->va_type, 984 adp->va_flags & V_ADP_COLOR, mode); 985#if VESA_DEBUG > 0 986 printf("VESA: set_mode(): %d(%x) -> %d(%x)\n", 987 adp->va_mode, adp->va_mode, mode, mode); 988#endif 989 /* 990 * If the current mode is a VESA mode and the new mode is not, 991 * restore the state of the adapter first by setting one of the 992 * standard VGA mode, so that non-standard, extended SVGA registers 993 * are set to the state compatible with the standard VGA modes. 994 * Otherwise (*prevvidsw->set_mode)() may not be able to set up 995 * the new mode correctly. 996 */ 997 if (VESA_MODE(adp->va_mode)) { 998 if ((*prevvidsw->get_info)(adp, mode, &info) == 0) { 999 int10_set_mode(adp->va_initial_bios_mode); 1000 if (adp->va_info.vi_flags & V_INFO_LINEAR) 1001 vesa_unmap_buffer(adp->va_buffer, 1002 vesa_adp_info->v_memsize*64*1024); 1003 /* 1004 * Once (*prevvidsw->get_info)() succeeded, 1005 * (*prevvidsw->set_mode)() below won't fail... 1006 */ 1007 } 1008 } 1009 1010 /* we may not need to handle this mode after all... */ 1011 if ((*prevvidsw->set_mode)(adp, mode) == 0) 1012 return 0; 1013 1014 /* is the new mode supported? */ 1015 if (vesa_get_info(adp, mode, &info)) 1016 return 1; 1017 /* assert(VESA_MODE(mode)); */ 1018 1019#if VESA_DEBUG > 0 1020 printf("VESA: about to set a VESA mode...\n"); 1021#endif 1022 /* don't use the linear frame buffer for text modes. XXX */ 1023 if (!(info.vi_flags & V_INFO_GRAPHICS)) 1024 info.vi_flags &= ~V_INFO_LINEAR; 1025 1026 if (vesa_bios_set_mode(mode | ((info.vi_flags & V_INFO_LINEAR) ? 0x4000 : 0))) 1027 return 1; 1028 1029 if (adp->va_info.vi_flags & V_INFO_LINEAR) 1030 vesa_unmap_buffer(adp->va_buffer, 1031 vesa_adp_info->v_memsize*64*1024); 1032 1033#if VESA_DEBUG > 0 1034 printf("VESA: mode set!\n"); 1035#endif 1036 vesa_adp->va_mode = mode; 1037 vesa_adp->va_flags &= ~V_ADP_COLOR; 1038 vesa_adp->va_flags |= 1039 (info.vi_flags & V_INFO_COLOR) ? V_ADP_COLOR : 0; 1040 vesa_adp->va_crtc_addr = 1041 (vesa_adp->va_flags & V_ADP_COLOR) ? COLOR_CRTC : MONO_CRTC; 1042 if (info.vi_flags & V_INFO_LINEAR) { 1043#if VESA_DEBUG > 1 1044 printf("VESA: setting up LFB\n"); 1045#endif 1046 vesa_adp->va_buffer = 1047 vesa_map_buffer(info.vi_buffer, 1048 vesa_adp_info->v_memsize*64*1024); 1049 vesa_adp->va_buffer_size = info.vi_buffer_size; 1050 vesa_adp->va_window = vesa_adp->va_buffer; 1051 vesa_adp->va_window_size = info.vi_buffer_size/info.vi_planes; 1052 vesa_adp->va_window_gran = info.vi_buffer_size/info.vi_planes; 1053 } else { 1054 vesa_adp->va_buffer = 0; 1055 vesa_adp->va_buffer_size = info.vi_buffer_size; 1056 vesa_adp->va_window = BIOS_PADDRTOVADDR(info.vi_window); 1057 vesa_adp->va_window_size = info.vi_window_size; 1058 vesa_adp->va_window_gran = info.vi_window_gran; 1059 } 1060 vesa_adp->va_window_orig = 0; 1061 len = vesa_bios_get_line_length(); 1062 if (len > 0) { 1063 vesa_adp->va_line_width = len; 1064 } else if (info.vi_flags & V_INFO_GRAPHICS) { 1065 switch (info.vi_depth/info.vi_planes) { 1066 case 1: 1067 vesa_adp->va_line_width = info.vi_width/8; 1068 break; 1069 case 2: 1070 vesa_adp->va_line_width = info.vi_width/4; 1071 break; 1072 case 4: 1073 vesa_adp->va_line_width = info.vi_width/2; 1074 break; 1075 case 8: 1076 default: /* shouldn't happen */ 1077 vesa_adp->va_line_width = info.vi_width; 1078 break; 1079 } 1080 } else { 1081 vesa_adp->va_line_width = info.vi_width; 1082 } 1083 vesa_adp->va_disp_start.x = 0; 1084 vesa_adp->va_disp_start.y = 0; 1085#if VESA_DEBUG > 0 1086 printf("vesa_set_mode(): vi_width:%d, len:%d, line_width:%d\n", 1087 info.vi_width, len, vesa_adp->va_line_width); 1088#endif 1089 bcopy(&info, &vesa_adp->va_info, sizeof(vesa_adp->va_info)); 1090 1091 /* move hardware cursor out of the way */ 1092 (*vidsw[vesa_adp->va_index]->set_hw_cursor)(vesa_adp, -1, -1); 1093 1094 return 0; 1095} 1096 1097static int 1098vesa_save_font(video_adapter_t *adp, int page, int fontsize, u_char *data, 1099 int ch, int count) 1100{ 1101 return (*prevvidsw->save_font)(adp, page, fontsize, data, ch, count); 1102} 1103 1104static int 1105vesa_load_font(video_adapter_t *adp, int page, int fontsize, u_char *data, 1106 int ch, int count) 1107{ 1108 return (*prevvidsw->load_font)(adp, page, fontsize, data, ch, count); 1109} 1110 1111static int 1112vesa_show_font(video_adapter_t *adp, int page) 1113{ 1114 return (*prevvidsw->show_font)(adp, page); 1115} 1116 1117static int 1118vesa_save_palette(video_adapter_t *adp, u_char *palette) 1119{ 1120 int bits; 1121 int error; 1122 1123 if ((adp == vesa_adp) && (vesa_adp_info->v_flags & V_DAC8) 1124 && VESA_MODE(adp->va_mode)) { 1125 bits = vesa_bios_get_dac(); 1126 error = vesa_bios_save_palette(0, 256, palette, bits); 1127 if (error == 0) 1128 return 0; 1129 if (bits != 6) 1130 return error; 1131 } 1132 1133 return (*prevvidsw->save_palette)(adp, palette); 1134} 1135 1136static int 1137vesa_load_palette(video_adapter_t *adp, u_char *palette) 1138{ 1139#if notyet 1140 int bits; 1141 int error; 1142 1143 if ((adp == vesa_adp) && (vesa_adp_info->v_flags & V_DAC8) 1144 && VESA_MODE(adp->va_mode) && ((bits = vesa_bios_set_dac(8)) > 6)) { 1145 error = vesa_bios_load_palette(0, 256, palette, bits); 1146 if (error == 0) 1147 return 0; 1148 if (vesa_bios_set_dac(6) != 6) 1149 return 1; 1150 } 1151#endif /* notyet */ 1152 1153 return (*prevvidsw->load_palette)(adp, palette); 1154} 1155 1156static int 1157vesa_set_border(video_adapter_t *adp, int color) 1158{ 1159 return (*prevvidsw->set_border)(adp, color); 1160} 1161 1162static int 1163vesa_save_state(video_adapter_t *adp, void *p, size_t size) 1164{ 1165 if (adp != vesa_adp) 1166 return (*prevvidsw->save_state)(adp, p, size); 1167 1168 if (vesa_state_buf_size == 0) 1169 vesa_state_buf_size = vesa_bios_state_buf_size(); 1170 if (size == 0) 1171 return (sizeof(int) + vesa_state_buf_size); 1172 else if (size < (sizeof(int) + vesa_state_buf_size)) 1173 return 1; 1174 1175 ((adp_state_t *)p)->sig = V_STATE_SIG; 1176 bzero(((adp_state_t *)p)->regs, vesa_state_buf_size); 1177 return vesa_bios_save_restore(STATE_SAVE, ((adp_state_t *)p)->regs, 1178 vesa_state_buf_size); 1179} 1180 1181static int 1182vesa_load_state(video_adapter_t *adp, void *p) 1183{ 1184 if ((adp != vesa_adp) || (((adp_state_t *)p)->sig != V_STATE_SIG)) 1185 return (*prevvidsw->load_state)(adp, p); 1186 1187 return vesa_bios_save_restore(STATE_LOAD, ((adp_state_t *)p)->regs, 1188 vesa_state_buf_size); 1189} 1190 1191#if 0 1192static int 1193vesa_get_origin(video_adapter_t *adp, off_t *offset) 1194{ 1195 struct vm86frame vmf; 1196 int err; 1197 1198 bzero(&vmf, sizeof(vmf)); 1199 vmf.vmf_eax = 0x4f05; 1200 vmf.vmf_ebx = 0x10; /* WINDOW_A, XXX */ 1201 err = vm86_intcall(0x10, &vmf); 1202 if ((err != 0) || (vmf.vmf_ax != 0x4f)) 1203 return 1; 1204 *offset = vmf.vmf_dx*adp->va_window_gran; 1205 return 0; 1206} 1207#endif 1208 1209static int 1210vesa_set_origin(video_adapter_t *adp, off_t offset) 1211{ 1212 struct vm86frame vmf; 1213 int err; 1214 1215 /* 1216 * This function should return as quickly as possible to 1217 * maintain good performance of the system. For this reason, 1218 * error checking is kept minimal and let the VESA BIOS to 1219 * detect error. 1220 */ 1221 if (adp != vesa_adp) 1222 return (*prevvidsw->set_win_org)(adp, offset); 1223 1224 /* if this is a linear frame buffer, do nothing */ 1225 if (adp->va_info.vi_flags & V_INFO_LINEAR) 1226 return 0; 1227 /* XXX */ 1228 if (adp->va_window_gran == 0) 1229 return 1; 1230 1231 bzero(&vmf, sizeof(vmf)); 1232 vmf.vmf_eax = 0x4f05; 1233 vmf.vmf_ebx = 0; /* WINDOW_A, XXX */ 1234 vmf.vmf_edx = offset/adp->va_window_gran; 1235 err = vm86_intcall(0x10, &vmf); 1236 if ((err != 0) || (vmf.vmf_ax != 0x4f)) 1237 return 1; 1238 bzero(&vmf, sizeof(vmf)); 1239 vmf.vmf_eax = 0x4f05; 1240 vmf.vmf_ebx = 1; /* WINDOW_B, XXX */ 1241 vmf.vmf_edx = offset/adp->va_window_gran; 1242 err = vm86_intcall(0x10, &vmf); 1243 adp->va_window_orig = (offset/adp->va_window_gran)*adp->va_window_gran; 1244 return 0; /* XXX */ 1245} 1246 1247static int 1248vesa_read_hw_cursor(video_adapter_t *adp, int *col, int *row) 1249{ 1250 return (*prevvidsw->read_hw_cursor)(adp, col, row); 1251} 1252 1253static int 1254vesa_set_hw_cursor(video_adapter_t *adp, int col, int row) 1255{ 1256 return (*prevvidsw->set_hw_cursor)(adp, col, row); 1257} 1258 1259static int 1260vesa_set_hw_cursor_shape(video_adapter_t *adp, int base, int height, 1261 int celsize, int blink) 1262{ 1263 return (*prevvidsw->set_hw_cursor_shape)(adp, base, height, celsize, 1264 blink); 1265} 1266 1267static int 1268vesa_blank_display(video_adapter_t *adp, int mode) 1269{ 1270 /* XXX: use VESA DPMS */ 1271 return (*prevvidsw->blank_display)(adp, mode); 1272} 1273 1274static int 1275vesa_mmap(video_adapter_t *adp, vm_offset_t offset, int prot) 1276{ 1277#if VESA_DEBUG > 0 1278 printf("vesa_mmap(): window:0x%x, buffer:0x%x, offset:0x%x\n", 1279 adp->va_info.vi_window, adp->va_info.vi_buffer, offset); 1280#endif 1281 1282 if ((adp == vesa_adp) && (adp->va_info.vi_flags & V_INFO_LINEAR)) { 1283 /* va_window_size == va_buffer_size/vi_planes */ 1284 /* XXX: is this correct? */ 1285 if (offset > adp->va_window_size - PAGE_SIZE) 1286 return -1; 1287#ifdef __i386__ 1288 return i386_btop(adp->va_info.vi_buffer + offset); 1289#endif 1290#ifdef __alpha__ /* XXX */ 1291 return alpha_btop(adp->va_info.vi_buffer + offset); 1292#endif 1293 } else { 1294 return (*prevvidsw->mmap)(adp, offset, prot); 1295 } 1296} 1297 1298static int 1299vesa_clear(video_adapter_t *adp) 1300{ 1301 return (*prevvidsw->clear)(adp); 1302} 1303 1304static int 1305vesa_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 1306{ 1307 return (*prevvidsw->fill_rect)(adp, val, x, y, cx, cy); 1308} 1309 1310static int 1311vesa_bitblt(video_adapter_t *adp,...) 1312{ 1313 /* FIXME */ 1314 return 1; 1315} 1316 1317static int 1318get_palette(video_adapter_t *adp, int base, int count, 1319 u_char *red, u_char *green, u_char *blue, u_char *trans) 1320{ 1321 u_char *r; 1322 u_char *g; 1323 u_char *b; 1324 int bits; 1325 int error; 1326 1327 if ((base < 0) || (base >= 256) || (base + count > 256)) 1328 return 1; 1329 if (!(vesa_adp_info->v_flags & V_DAC8) || !VESA_MODE(adp->va_mode)) 1330 return 1; 1331 1332 bits = vesa_bios_get_dac(); 1333 if (bits <= 6) 1334 return 1; 1335 1336 r = malloc(count*3, M_DEVBUF, M_WAITOK); 1337 g = r + count; 1338 b = g + count; 1339 error = vesa_bios_save_palette2(base, count, r, g, b, bits); 1340 if (error == 0) { 1341 copyout(r, red, count); 1342 copyout(g, green, count); 1343 copyout(b, blue, count); 1344 if (trans != NULL) { 1345 bzero(r, count); 1346 copyout(r, trans, count); 1347 } 1348 } 1349 free(r, M_DEVBUF); 1350 1351 /* if error && bits != 6 at this point, we are in in trouble... XXX */ 1352 return error; 1353} 1354 1355static int 1356set_palette(video_adapter_t *adp, int base, int count, 1357 u_char *red, u_char *green, u_char *blue, u_char *trans) 1358{ 1359 return 1; 1360#if notyet 1361 u_char *r; 1362 u_char *g; 1363 u_char *b; 1364 int bits; 1365 int error; 1366 1367 if ((base < 0) || (base >= 256) || (base + count > 256)) 1368 return 1; 1369 if (!(vesa_adp_info->v_flags & V_DAC8) || !VESA_MODE(adp->va_mode) 1370 || ((bits = vesa_bios_set_dac(8)) <= 6)) 1371 return 1; 1372 1373 r = malloc(count*3, M_DEVBUF, M_WAITOK); 1374 g = r + count; 1375 b = g + count; 1376 copyin(red, r, count); 1377 copyin(green, g, count); 1378 copyin(blue, b, count); 1379 1380 error = vesa_bios_load_palette2(base, count, r, g, b, bits); 1381 free(r, M_DEVBUF); 1382 if (error == 0) 1383 return 0; 1384 1385 /* if the following call fails, we are in trouble... XXX */ 1386 vesa_bios_set_dac(6); 1387 return 1; 1388#endif /* notyet */ 1389} 1390 1391static int 1392vesa_ioctl(video_adapter_t *adp, u_long cmd, caddr_t arg) 1393{ 1394 int bytes; 1395 1396 if (adp != vesa_adp) 1397 return (*prevvidsw->ioctl)(adp, cmd, arg); 1398 1399 switch (cmd) { 1400 case FBIO_SETWINORG: /* set frame buffer window origin */ 1401 if (!VESA_MODE(adp->va_mode)) 1402 return (*prevvidsw->ioctl)(adp, cmd, arg); 1403 return (vesa_set_origin(adp, *(off_t *)arg) ? ENODEV : 0); 1404 1405 case FBIO_SETDISPSTART: /* set display start address */ 1406 if (!VESA_MODE(adp->va_mode)) 1407 return (*prevvidsw->ioctl)(adp, cmd, arg); 1408 if (vesa_bios_set_start(((video_display_start_t *)arg)->x, 1409 ((video_display_start_t *)arg)->y)) 1410 return ENODEV; 1411 adp->va_disp_start.x = ((video_display_start_t *)arg)->x; 1412 adp->va_disp_start.y = ((video_display_start_t *)arg)->y; 1413 return 0; 1414 1415 case FBIO_SETLINEWIDTH: /* set line length in pixel */ 1416 if (!VESA_MODE(adp->va_mode)) 1417 return (*prevvidsw->ioctl)(adp, cmd, arg); 1418 if (vesa_bios_set_line_length(*(u_int *)arg, &bytes, NULL)) 1419 return ENODEV; 1420 adp->va_line_width = bytes; 1421#if VESA_DEBUG > 1 1422 printf("new line width:%d\n", adp->va_line_width); 1423#endif 1424 return 0; 1425 1426 case FBIO_GETPALETTE: /* get color palette */ 1427 if (get_palette(adp, ((video_color_palette_t *)arg)->index, 1428 ((video_color_palette_t *)arg)->count, 1429 ((video_color_palette_t *)arg)->red, 1430 ((video_color_palette_t *)arg)->green, 1431 ((video_color_palette_t *)arg)->blue, 1432 ((video_color_palette_t *)arg)->transparent)) 1433 return (*prevvidsw->ioctl)(adp, cmd, arg); 1434 return 0; 1435 1436 1437 case FBIO_SETPALETTE: /* set color palette */ 1438 if (set_palette(adp, ((video_color_palette_t *)arg)->index, 1439 ((video_color_palette_t *)arg)->count, 1440 ((video_color_palette_t *)arg)->red, 1441 ((video_color_palette_t *)arg)->green, 1442 ((video_color_palette_t *)arg)->blue, 1443 ((video_color_palette_t *)arg)->transparent)) 1444 return (*prevvidsw->ioctl)(adp, cmd, arg); 1445 return 0; 1446 1447 case FBIOGETCMAP: /* get color palette */ 1448 if (get_palette(adp, ((struct fbcmap *)arg)->index, 1449 ((struct fbcmap *)arg)->count, 1450 ((struct fbcmap *)arg)->red, 1451 ((struct fbcmap *)arg)->green, 1452 ((struct fbcmap *)arg)->blue, NULL)) 1453 return (*prevvidsw->ioctl)(adp, cmd, arg); 1454 return 0; 1455 1456 case FBIOPUTCMAP: /* set color palette */ 1457 if (set_palette(adp, ((struct fbcmap *)arg)->index, 1458 ((struct fbcmap *)arg)->count, 1459 ((struct fbcmap *)arg)->red, 1460 ((struct fbcmap *)arg)->green, 1461 ((struct fbcmap *)arg)->blue, NULL)) 1462 return (*prevvidsw->ioctl)(adp, cmd, arg); 1463 return 0; 1464 1465 default: 1466 return (*prevvidsw->ioctl)(adp, cmd, arg); 1467 } 1468} 1469 1470static int 1471vesa_diag(video_adapter_t *adp, int level) 1472{ 1473 int error; 1474 1475 /* call the previous handler first */ 1476 error = (*prevvidsw->diag)(adp, level); 1477 if (error) 1478 return error; 1479 1480 if (adp != vesa_adp) 1481 return 1; 1482 1483 if (level <= 0) 1484 return 0; 1485 1486 return 0; 1487} 1488 1489static int 1490vesa_bios_info(int level) 1491{ 1492#if VESA_DEBUG > 1 1493 struct vesa_mode vmode; 1494 int i; 1495#endif 1496 1497 /* general adapter information */ 1498 printf("VESA: v%d.%d, %dk memory, flags:0x%x, mode table:%p (%x)\n", 1499 ((vesa_adp_info->v_version & 0xf000) >> 12) * 10 1500 + ((vesa_adp_info->v_version & 0x0f00) >> 8), 1501 ((vesa_adp_info->v_version & 0x00f0) >> 4) * 10 1502 + (vesa_adp_info->v_version & 0x000f), 1503 vesa_adp_info->v_memsize * 64, vesa_adp_info->v_flags, 1504 vesa_vmodetab, vesa_adp_info->v_modetable); 1505 /* OEM string */ 1506 if (vesa_oemstr != NULL) 1507 printf("VESA: %s\n", vesa_oemstr); 1508 1509 if (level <= 0) 1510 return 0; 1511 1512 if (vesa_adp_info->v_version >= 0x0200) { 1513 /* vender name, product name, product revision */ 1514 printf("VESA: %s %s %s\n", 1515 (vesa_venderstr != NULL) ? vesa_venderstr : "unknown", 1516 (vesa_prodstr != NULL) ? vesa_prodstr : "unknown", 1517 (vesa_revstr != NULL) ? vesa_revstr : "?"); 1518 } 1519 1520#if VESA_DEBUG > 1 1521 /* mode information */ 1522 for (i = 0; 1523 (i < (M_VESA_MODE_MAX - M_VESA_BASE + 1)) 1524 && (vesa_vmodetab[i] != 0xffff); ++i) { 1525 if (vesa_bios_get_mode(vesa_vmodetab[i], &vmode)) 1526 continue; 1527 1528 /* print something for diagnostic purpose */ 1529 printf("VESA: mode:0x%03x, flags:0x%04x", 1530 vesa_vmodetab[i], vmode.v_modeattr); 1531 if (vmode.v_modeattr & V_MODEOPTINFO) { 1532 if (vmode.v_modeattr & V_MODEGRAPHICS) { 1533 printf(", G %dx%dx%d %d, ", 1534 vmode.v_width, vmode.v_height, 1535 vmode.v_bpp, vmode.v_planes); 1536 } else { 1537 printf(", T %dx%d, ", 1538 vmode.v_width, vmode.v_height); 1539 } 1540 printf("font:%dx%d, ", 1541 vmode.v_cwidth, vmode.v_cheight); 1542 printf("pages:%d, mem:%d", 1543 vmode.v_ipages + 1, vmode.v_memmodel); 1544 } 1545 if (vmode.v_modeattr & V_MODELFB) { 1546 printf("\nVESA: LFB:0x%x, off:0x%x, off_size:0x%x", 1547 vmode.v_lfb, vmode.v_offscreen, 1548 vmode.v_offscreensize*1024); 1549 } 1550 printf("\n"); 1551 printf("VESA: window A:0x%x (%x), window B:0x%x (%x), ", 1552 vmode.v_waseg, vmode.v_waattr, 1553 vmode.v_wbseg, vmode.v_wbattr); 1554 printf("size:%dk, gran:%dk\n", 1555 vmode.v_wsize, vmode.v_wgran); 1556 } 1557#endif /* VESA_DEBUG > 1 */ 1558 1559 return 0; 1560} 1561 1562/* module loading */ 1563 1564static int 1565vesa_load(void) 1566{ 1567 int error; 1568 int s; 1569 1570 if (vesa_init_done) 1571 return 0; 1572 1573 /* locate a VGA adapter */ 1574 s = spltty(); 1575 vesa_adp = NULL; 1576 error = vesa_configure(0); 1577 splx(s); 1578 1579 if (error == 0) 1580 vesa_bios_info(bootverbose); 1581 1582 return error; 1583} 1584 1585static int 1586vesa_unload(void) 1587{ 1588 u_char palette[256*3]; 1589 int error; 1590 int bits; 1591 int s; 1592 1593 /* if the adapter is currently in a VESA mode, don't unload */ 1594 if ((vesa_adp != NULL) && VESA_MODE(vesa_adp->va_mode)) 1595 return EBUSY; 1596 /* 1597 * FIXME: if there is at least one vty which is in a VESA mode, 1598 * we shouldn't be unloading! XXX 1599 */ 1600 1601 s = spltty(); 1602 if ((error = vesa_unload_ioctl()) == 0) { 1603 if (vesa_adp != NULL) { 1604 if (vesa_adp_info->v_flags & V_DAC8) { 1605 bits = vesa_bios_get_dac(); 1606 if (bits > 6) { 1607 vesa_bios_save_palette(0, 256, 1608 palette, bits); 1609 vesa_bios_set_dac(6); 1610 vesa_bios_load_palette(0, 256, 1611 palette, 6); 1612 } 1613 } 1614 vesa_adp->va_flags &= ~V_ADP_VESA; 1615 vidsw[vesa_adp->va_index] = prevvidsw; 1616 } 1617 } 1618 splx(s); 1619 1620 return error; 1621} 1622 1623static int 1624vesa_mod_event(module_t mod, int type, void *data) 1625{ 1626 switch (type) { 1627 case MOD_LOAD: 1628 return vesa_load(); 1629 case MOD_UNLOAD: 1630 return vesa_unload(); 1631 default: 1632 break; 1633 } 1634 return 0; 1635} 1636 1637static moduledata_t vesa_mod = { 1638 "vesa", 1639 vesa_mod_event, 1640 NULL, 1641}; 1642 1643DECLARE_MODULE(vesa, vesa_mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE); 1644 1645#endif /* (NVGA > 0 && VESA) || KLD_MODULE */ 1646