1 /*- 2 * Copyright (c) 2013 The FreeBSD Foundation 3 * All rights reserved. 4 * 5 * This software was developed by Benno Rice under sponsorship from 6 * the FreeBSD Foundation. 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 __FBSDID("$FreeBSD$"); 31 32 #include <bootstrap.h> 33 #include <sys/endian.h> 34 #include <sys/param.h> 35 #include <stand.h> 36 37 #include <efi.h> 38 #include <efilib.h> 39 #include <efiuga.h> 40 #include <efipciio.h> 41 #include <machine/metadata.h> 42 43 #include "bootstrap.h" 44 #include "framebuffer.h" 45 46 EFI_GUID gop_guid = EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID; 47 static EFI_GUID pciio_guid = EFI_PCI_IO_PROTOCOL_GUID; 48 static EFI_GUID uga_guid = EFI_UGA_DRAW_PROTOCOL_GUID; 49 50 static struct named_resolution { 51 const char *name; 52 const char *alias; 53 unsigned int width; 54 unsigned int height; 55 } resolutions[] = { 56 { 57 .name = "480p", 58 .width = 640, 59 .height = 480, 60 }, 61 { 62 .name = "720p", 63 .width = 1280, 64 .height = 720, 65 }, 66 { 67 .name = "1080p", 68 .width = 1920, 69 .height = 1080, 70 }, 71 { 72 .name = "2160p", 73 .alias = "4k", 74 .width = 3840, 75 .height = 2160, 76 }, 77 { 78 .name = "5k", 79 .width = 5120, 80 .height = 2880, 81 } 82 }; 83 84 static u_int 85 efifb_color_depth(struct efi_fb *efifb) 86 { 87 uint32_t mask; 88 u_int depth; 89 90 mask = efifb->fb_mask_red | efifb->fb_mask_green | 91 efifb->fb_mask_blue | efifb->fb_mask_reserved; 92 if (mask == 0) 93 return (0); 94 for (depth = 1; mask != 1; depth++) 95 mask >>= 1; 96 return (depth); 97 } 98 99 static int 100 efifb_mask_from_pixfmt(struct efi_fb *efifb, EFI_GRAPHICS_PIXEL_FORMAT pixfmt, 101 EFI_PIXEL_BITMASK *pixinfo) 102 { 103 int result; 104 105 result = 0; 106 switch (pixfmt) { 107 case PixelRedGreenBlueReserved8BitPerColor: 108 efifb->fb_mask_red = 0x000000ff; 109 efifb->fb_mask_green = 0x0000ff00; 110 efifb->fb_mask_blue = 0x00ff0000; 111 efifb->fb_mask_reserved = 0xff000000; 112 break; 113 case PixelBlueGreenRedReserved8BitPerColor: 114 efifb->fb_mask_red = 0x00ff0000; 115 efifb->fb_mask_green = 0x0000ff00; 116 efifb->fb_mask_blue = 0x000000ff; 117 efifb->fb_mask_reserved = 0xff000000; 118 break; 119 case PixelBitMask: 120 efifb->fb_mask_red = pixinfo->RedMask; 121 efifb->fb_mask_green = pixinfo->GreenMask; 122 efifb->fb_mask_blue = pixinfo->BlueMask; 123 efifb->fb_mask_reserved = pixinfo->ReservedMask; 124 break; 125 default: 126 result = 1; 127 break; 128 } 129 return (result); 130 } 131 132 static int 133 efifb_from_gop(struct efi_fb *efifb, EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE *mode, 134 EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *info) 135 { 136 int result; 137 138 efifb->fb_addr = mode->FrameBufferBase; 139 efifb->fb_size = mode->FrameBufferSize; 140 efifb->fb_height = info->VerticalResolution; 141 efifb->fb_width = info->HorizontalResolution; 142 efifb->fb_stride = info->PixelsPerScanLine; 143 result = efifb_mask_from_pixfmt(efifb, info->PixelFormat, 144 &info->PixelInformation); 145 return (result); 146 } 147 148 static ssize_t 149 efifb_uga_find_pixel(EFI_UGA_DRAW_PROTOCOL *uga, u_int line, 150 EFI_PCI_IO_PROTOCOL *pciio, uint64_t addr, uint64_t size) 151 { 152 EFI_UGA_PIXEL pix0, pix1; 153 uint8_t *data1, *data2; 154 size_t count, maxcount = 1024; 155 ssize_t ofs; 156 EFI_STATUS status; 157 u_int idx; 158 159 status = uga->Blt(uga, &pix0, EfiUgaVideoToBltBuffer, 160 0, line, 0, 0, 1, 1, 0); 161 if (EFI_ERROR(status)) { 162 printf("UGA BLT operation failed (video->buffer)"); 163 return (-1); 164 } 165 pix1.Red = ~pix0.Red; 166 pix1.Green = ~pix0.Green; 167 pix1.Blue = ~pix0.Blue; 168 pix1.Reserved = 0; 169 170 data1 = calloc(maxcount, 2); 171 if (data1 == NULL) { 172 printf("Unable to allocate memory"); 173 return (-1); 174 } 175 data2 = data1 + maxcount; 176 177 ofs = 0; 178 while (size > 0) { 179 count = min(size, maxcount); 180 181 status = pciio->Mem.Read(pciio, EfiPciIoWidthUint32, 182 EFI_PCI_IO_PASS_THROUGH_BAR, addr + ofs, count >> 2, 183 data1); 184 if (EFI_ERROR(status)) { 185 printf("Error reading frame buffer (before)"); 186 goto fail; 187 } 188 status = uga->Blt(uga, &pix1, EfiUgaBltBufferToVideo, 189 0, 0, 0, line, 1, 1, 0); 190 if (EFI_ERROR(status)) { 191 printf("UGA BLT operation failed (modify)"); 192 goto fail; 193 } 194 status = pciio->Mem.Read(pciio, EfiPciIoWidthUint32, 195 EFI_PCI_IO_PASS_THROUGH_BAR, addr + ofs, count >> 2, 196 data2); 197 if (EFI_ERROR(status)) { 198 printf("Error reading frame buffer (after)"); 199 goto fail; 200 } 201 status = uga->Blt(uga, &pix0, EfiUgaBltBufferToVideo, 202 0, 0, 0, line, 1, 1, 0); 203 if (EFI_ERROR(status)) { 204 printf("UGA BLT operation failed (restore)"); 205 goto fail; 206 } 207 for (idx = 0; idx < count; idx++) { 208 if (data1[idx] != data2[idx]) { 209 free(data1); 210 return (ofs + (idx & ~3)); 211 } 212 } 213 ofs += count; 214 size -= count; 215 } 216 printf("No change detected in frame buffer"); 217 218 fail: 219 printf(" -- error %lu\n", EFI_ERROR_CODE(status)); 220 free(data1); 221 return (-1); 222 } 223 224 static EFI_PCI_IO_PROTOCOL * 225 efifb_uga_get_pciio(void) 226 { 227 EFI_PCI_IO_PROTOCOL *pciio; 228 EFI_HANDLE *buf, *hp; 229 EFI_STATUS status; 230 UINTN bufsz; 231 232 /* Get all handles that support the UGA protocol. */ 233 bufsz = 0; 234 status = BS->LocateHandle(ByProtocol, &uga_guid, NULL, &bufsz, NULL); 235 if (status != EFI_BUFFER_TOO_SMALL) 236 return (NULL); 237 buf = malloc(bufsz); 238 status = BS->LocateHandle(ByProtocol, &uga_guid, NULL, &bufsz, buf); 239 if (status != EFI_SUCCESS) { 240 free(buf); 241 return (NULL); 242 } 243 bufsz /= sizeof(EFI_HANDLE); 244 245 /* Get the PCI I/O interface of the first handle that supports it. */ 246 pciio = NULL; 247 for (hp = buf; hp < buf + bufsz; hp++) { 248 status = OpenProtocolByHandle(*hp, &pciio_guid, 249 (void **)&pciio); 250 if (status == EFI_SUCCESS) { 251 free(buf); 252 return (pciio); 253 } 254 } 255 free(buf); 256 return (NULL); 257 } 258 259 static EFI_STATUS 260 efifb_uga_locate_framebuffer(EFI_PCI_IO_PROTOCOL *pciio, uint64_t *addrp, 261 uint64_t *sizep) 262 { 263 uint8_t *resattr; 264 uint64_t addr, size; 265 EFI_STATUS status; 266 u_int bar; 267 268 if (pciio == NULL) 269 return (EFI_DEVICE_ERROR); 270 271 /* Attempt to get the frame buffer address (imprecise). */ 272 *addrp = 0; 273 *sizep = 0; 274 for (bar = 0; bar < 6; bar++) { 275 status = pciio->GetBarAttributes(pciio, bar, NULL, 276 (void **)&resattr); 277 if (status != EFI_SUCCESS) 278 continue; 279 /* XXX magic offsets and constants. */ 280 if (resattr[0] == 0x87 && resattr[3] == 0) { 281 /* 32-bit address space descriptor (MEMIO) */ 282 addr = le32dec(resattr + 10); 283 size = le32dec(resattr + 22); 284 } else if (resattr[0] == 0x8a && resattr[3] == 0) { 285 /* 64-bit address space descriptor (MEMIO) */ 286 addr = le64dec(resattr + 14); 287 size = le64dec(resattr + 38); 288 } else { 289 addr = 0; 290 size = 0; 291 } 292 BS->FreePool(resattr); 293 if (addr == 0 || size == 0) 294 continue; 295 296 /* We assume the largest BAR is the frame buffer. */ 297 if (size > *sizep) { 298 *addrp = addr; 299 *sizep = size; 300 } 301 } 302 return ((*addrp == 0 || *sizep == 0) ? EFI_DEVICE_ERROR : 0); 303 } 304 305 static int 306 efifb_from_uga(struct efi_fb *efifb, EFI_UGA_DRAW_PROTOCOL *uga) 307 { 308 EFI_PCI_IO_PROTOCOL *pciio; 309 char *ev, *p; 310 EFI_STATUS status; 311 ssize_t offset; 312 uint64_t fbaddr; 313 uint32_t horiz, vert, stride; 314 uint32_t np, depth, refresh; 315 316 status = uga->GetMode(uga, &horiz, &vert, &depth, &refresh); 317 if (EFI_ERROR(status)) 318 return (1); 319 efifb->fb_height = vert; 320 efifb->fb_width = horiz; 321 /* Paranoia... */ 322 if (efifb->fb_height == 0 || efifb->fb_width == 0) 323 return (1); 324 325 /* The color masks are fixed AFAICT. */ 326 efifb_mask_from_pixfmt(efifb, PixelBlueGreenRedReserved8BitPerColor, 327 NULL); 328 329 /* pciio can be NULL on return! */ 330 pciio = efifb_uga_get_pciio(); 331 332 /* Try to find the frame buffer. */ 333 status = efifb_uga_locate_framebuffer(pciio, &efifb->fb_addr, 334 &efifb->fb_size); 335 if (EFI_ERROR(status)) { 336 efifb->fb_addr = 0; 337 efifb->fb_size = 0; 338 } 339 340 /* 341 * There's no reliable way to detect the frame buffer or the 342 * offset within the frame buffer of the visible region, nor 343 * the stride. Our only option is to look at the system and 344 * fill in the blanks based on that. Luckily, UGA was mostly 345 * only used on Apple hardware. 346 */ 347 offset = -1; 348 ev = getenv("smbios.system.maker"); 349 if (ev != NULL && !strcmp(ev, "Apple Inc.")) { 350 ev = getenv("smbios.system.product"); 351 if (ev != NULL && !strcmp(ev, "iMac7,1")) { 352 /* These are the expected values we should have. */ 353 horiz = 1680; 354 vert = 1050; 355 fbaddr = 0xc0000000; 356 /* These are the missing bits. */ 357 offset = 0x10000; 358 stride = 1728; 359 } else if (ev != NULL && !strcmp(ev, "MacBook3,1")) { 360 /* These are the expected values we should have. */ 361 horiz = 1280; 362 vert = 800; 363 fbaddr = 0xc0000000; 364 /* These are the missing bits. */ 365 offset = 0x0; 366 stride = 2048; 367 } 368 } 369 370 /* 371 * If this is hardware we know, make sure that it looks familiar 372 * before we accept our hardcoded values. 373 */ 374 if (offset >= 0 && efifb->fb_width == horiz && 375 efifb->fb_height == vert && efifb->fb_addr == fbaddr) { 376 efifb->fb_addr += offset; 377 efifb->fb_size -= offset; 378 efifb->fb_stride = stride; 379 return (0); 380 } else if (offset >= 0) { 381 printf("Hardware make/model known, but graphics not " 382 "as expected.\n"); 383 printf("Console may not work!\n"); 384 } 385 386 /* 387 * The stride is equal or larger to the width. Often it's the 388 * next larger power of two. We'll start with that... 389 */ 390 efifb->fb_stride = efifb->fb_width; 391 do { 392 np = efifb->fb_stride & (efifb->fb_stride - 1); 393 if (np) { 394 efifb->fb_stride |= (np - 1); 395 efifb->fb_stride++; 396 } 397 } while (np); 398 399 ev = getenv("hw.efifb.address"); 400 if (ev == NULL) { 401 if (efifb->fb_addr == 0) { 402 printf("Please set hw.efifb.address and " 403 "hw.efifb.stride.\n"); 404 return (1); 405 } 406 407 /* 408 * The visible part of the frame buffer may not start at 409 * offset 0, so try to detect it. Note that we may not 410 * always be able to read from the frame buffer, which 411 * means that we may not be able to detect anything. In 412 * that case, we would take a long time scanning for a 413 * pixel change in the frame buffer, which would have it 414 * appear that we're hanging, so we limit the scan to 415 * 1/256th of the frame buffer. This number is mostly 416 * based on PR 202730 and the fact that on a MacBoook, 417 * where we can't read from the frame buffer the offset 418 * of the visible region is 0. In short: we want to scan 419 * enough to handle all adapters that have an offset 420 * larger than 0 and we want to scan as little as we can 421 * to not appear to hang when we can't read from the 422 * frame buffer. 423 */ 424 offset = efifb_uga_find_pixel(uga, 0, pciio, efifb->fb_addr, 425 efifb->fb_size >> 8); 426 if (offset == -1) { 427 printf("Unable to reliably detect frame buffer.\n"); 428 } else if (offset > 0) { 429 efifb->fb_addr += offset; 430 efifb->fb_size -= offset; 431 } 432 } else { 433 offset = 0; 434 efifb->fb_size = efifb->fb_height * efifb->fb_stride * 4; 435 efifb->fb_addr = strtoul(ev, &p, 0); 436 if (*p != '\0') 437 return (1); 438 } 439 440 ev = getenv("hw.efifb.stride"); 441 if (ev == NULL) { 442 if (pciio != NULL && offset != -1) { 443 /* Determine the stride. */ 444 offset = efifb_uga_find_pixel(uga, 1, pciio, 445 efifb->fb_addr, horiz * 8); 446 if (offset != -1) 447 efifb->fb_stride = offset >> 2; 448 } else { 449 printf("Unable to reliably detect the stride.\n"); 450 } 451 } else { 452 efifb->fb_stride = strtoul(ev, &p, 0); 453 if (*p != '\0') 454 return (1); 455 } 456 457 /* 458 * We finalized on the stride, so recalculate the size of the 459 * frame buffer. 460 */ 461 efifb->fb_size = efifb->fb_height * efifb->fb_stride * 4; 462 return (0); 463 } 464 465 int 466 efi_find_framebuffer(struct efi_fb *efifb) 467 { 468 EFI_GRAPHICS_OUTPUT *gop; 469 EFI_UGA_DRAW_PROTOCOL *uga; 470 EFI_STATUS status; 471 472 status = BS->LocateProtocol(&gop_guid, NULL, (VOID **)&gop); 473 if (status == EFI_SUCCESS) 474 return (efifb_from_gop(efifb, gop->Mode, gop->Mode->Info)); 475 476 status = BS->LocateProtocol(&uga_guid, NULL, (VOID **)&uga); 477 if (status == EFI_SUCCESS) 478 return (efifb_from_uga(efifb, uga)); 479 480 return (1); 481 } 482 483 static void 484 print_efifb(int mode, struct efi_fb *efifb, int verbose) 485 { 486 u_int depth; 487 488 if (mode >= 0) 489 printf("mode %d: ", mode); 490 depth = efifb_color_depth(efifb); 491 printf("%ux%ux%u, stride=%u", efifb->fb_width, efifb->fb_height, 492 depth, efifb->fb_stride); 493 if (verbose) { 494 printf("\n frame buffer: address=%jx, size=%jx", 495 (uintmax_t)efifb->fb_addr, (uintmax_t)efifb->fb_size); 496 printf("\n color mask: R=%08x, G=%08x, B=%08x\n", 497 efifb->fb_mask_red, efifb->fb_mask_green, 498 efifb->fb_mask_blue); 499 } 500 } 501 502 static bool 503 efi_resolution_compare(struct named_resolution *res, const char *cmp) 504 { 505 506 if (strcasecmp(res->name, cmp) == 0) 507 return (true); 508 if (res->alias != NULL && strcasecmp(res->alias, cmp) == 0) 509 return (true); 510 return (false); 511 } 512 513 514 static void 515 efi_get_max_resolution(int *width, int *height) 516 { 517 struct named_resolution *res; 518 char *maxres; 519 char *height_start, *width_start; 520 int idx; 521 522 *width = *height = 0; 523 maxres = getenv("efi_max_resolution"); 524 /* No max_resolution set? Bail out; choose highest resolution */ 525 if (maxres == NULL) 526 return; 527 /* See if it matches one of our known resolutions */ 528 for (idx = 0; idx < nitems(resolutions); ++idx) { 529 res = &resolutions[idx]; 530 if (efi_resolution_compare(res, maxres)) { 531 *width = res->width; 532 *height = res->height; 533 return; 534 } 535 } 536 /* Not a known resolution, try to parse it; make a copy we can modify */ 537 maxres = strdup(maxres); 538 if (maxres == NULL) 539 return; 540 height_start = strchr(maxres, 'x'); 541 if (height_start == NULL) { 542 free(maxres); 543 return; 544 } 545 width_start = maxres; 546 *height_start++ = 0; 547 /* Errors from this will effectively mean "no max" */ 548 *width = (int)strtol(width_start, NULL, 0); 549 *height = (int)strtol(height_start, NULL, 0); 550 free(maxres); 551 } 552 553 static int 554 gop_autoresize(EFI_GRAPHICS_OUTPUT *gop) 555 { 556 struct efi_fb efifb; 557 EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *info; 558 EFI_STATUS status; 559 UINTN infosz; 560 UINT32 best_mode, currdim, maxdim, mode; 561 int height, max_height, max_width, width; 562 563 best_mode = maxdim = 0; 564 efi_get_max_resolution(&max_width, &max_height); 565 for (mode = 0; mode < gop->Mode->MaxMode; mode++) { 566 status = gop->QueryMode(gop, mode, &infosz, &info); 567 if (EFI_ERROR(status)) 568 continue; 569 efifb_from_gop(&efifb, gop->Mode, info); 570 width = info->HorizontalResolution; 571 height = info->VerticalResolution; 572 currdim = width * height; 573 if (currdim > maxdim) { 574 if ((max_width != 0 && width > max_width) || 575 (max_height != 0 && height > max_height)) 576 continue; 577 maxdim = currdim; 578 best_mode = mode; 579 } 580 } 581 582 if (maxdim != 0) { 583 status = gop->SetMode(gop, best_mode); 584 if (EFI_ERROR(status)) { 585 snprintf(command_errbuf, sizeof(command_errbuf), 586 "gop_autoresize: Unable to set mode to %u (error=%lu)", 587 mode, EFI_ERROR_CODE(status)); 588 return (CMD_ERROR); 589 } 590 (void) cons_update_mode(true); 591 } 592 return (CMD_OK); 593 } 594 595 static int 596 text_autoresize() 597 { 598 SIMPLE_TEXT_OUTPUT_INTERFACE *conout; 599 EFI_STATUS status; 600 UINTN i, max_dim, best_mode, cols, rows; 601 602 conout = ST->ConOut; 603 max_dim = best_mode = 0; 604 for (i = 0; i < conout->Mode->MaxMode; i++) { 605 status = conout->QueryMode(conout, i, &cols, &rows); 606 if (EFI_ERROR(status)) 607 continue; 608 if (cols * rows > max_dim) { 609 max_dim = cols * rows; 610 best_mode = i; 611 } 612 } 613 if (max_dim > 0) 614 conout->SetMode(conout, best_mode); 615 (void) cons_update_mode(true); 616 return (CMD_OK); 617 } 618 619 static int 620 uga_autoresize(EFI_UGA_DRAW_PROTOCOL *uga) 621 { 622 623 return (text_autoresize()); 624 } 625 626 COMMAND_SET(efi_autoresize, "efi-autoresizecons", "EFI Auto-resize Console", command_autoresize); 627 628 static int 629 command_autoresize(int argc, char *argv[]) 630 { 631 EFI_GRAPHICS_OUTPUT *gop; 632 EFI_UGA_DRAW_PROTOCOL *uga; 633 char *textmode; 634 EFI_STATUS status; 635 u_int mode; 636 637 textmode = getenv("hw.vga.textmode"); 638 /* If it's set and non-zero, we'll select a console mode instead */ 639 if (textmode != NULL && strcmp(textmode, "0") != 0) 640 return (text_autoresize()); 641 642 gop = NULL; 643 uga = NULL; 644 status = BS->LocateProtocol(&gop_guid, NULL, (VOID **)&gop); 645 if (EFI_ERROR(status) == 0) 646 return (gop_autoresize(gop)); 647 648 status = BS->LocateProtocol(&uga_guid, NULL, (VOID **)&uga); 649 if (EFI_ERROR(status) == 0) 650 return (uga_autoresize(uga)); 651 652 snprintf(command_errbuf, sizeof(command_errbuf), 653 "%s: Neither Graphics Output Protocol nor Universal Graphics Adapter present", 654 argv[0]); 655 656 /* 657 * Default to text_autoresize if we have neither GOP or UGA. This won't 658 * give us the most ideal resolution, but it will at least leave us 659 * functional rather than failing the boot for an objectively bad 660 * reason. 661 */ 662 return (text_autoresize()); 663 } 664 665 COMMAND_SET(gop, "gop", "graphics output protocol", command_gop); 666 667 static int 668 command_gop(int argc, char *argv[]) 669 { 670 struct efi_fb efifb; 671 EFI_GRAPHICS_OUTPUT *gop; 672 EFI_STATUS status; 673 u_int mode; 674 675 status = BS->LocateProtocol(&gop_guid, NULL, (VOID **)&gop); 676 if (EFI_ERROR(status)) { 677 snprintf(command_errbuf, sizeof(command_errbuf), 678 "%s: Graphics Output Protocol not present (error=%lu)", 679 argv[0], EFI_ERROR_CODE(status)); 680 return (CMD_ERROR); 681 } 682 683 if (argc < 2) 684 goto usage; 685 686 if (!strcmp(argv[1], "set")) { 687 char *cp; 688 689 if (argc != 3) 690 goto usage; 691 mode = strtol(argv[2], &cp, 0); 692 if (cp[0] != '\0') { 693 sprintf(command_errbuf, "mode is an integer"); 694 return (CMD_ERROR); 695 } 696 status = gop->SetMode(gop, mode); 697 if (EFI_ERROR(status)) { 698 snprintf(command_errbuf, sizeof(command_errbuf), 699 "%s: Unable to set mode to %u (error=%lu)", 700 argv[0], mode, EFI_ERROR_CODE(status)); 701 return (CMD_ERROR); 702 } 703 (void) cons_update_mode(true); 704 } else if (strcmp(argv[1], "off") == 0) { 705 (void) cons_update_mode(false); 706 } else if (strcmp(argv[1], "get") == 0) { 707 if (argc != 2) 708 goto usage; 709 efifb_from_gop(&efifb, gop->Mode, gop->Mode->Info); 710 print_efifb(gop->Mode->Mode, &efifb, 1); 711 printf("\n"); 712 } else if (!strcmp(argv[1], "list")) { 713 EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *info; 714 UINTN infosz; 715 716 if (argc != 2) 717 goto usage; 718 pager_open(); 719 for (mode = 0; mode < gop->Mode->MaxMode; mode++) { 720 status = gop->QueryMode(gop, mode, &infosz, &info); 721 if (EFI_ERROR(status)) 722 continue; 723 efifb_from_gop(&efifb, gop->Mode, info); 724 print_efifb(mode, &efifb, 0); 725 if (pager_output("\n")) 726 break; 727 } 728 pager_close(); 729 } 730 return (CMD_OK); 731 732 usage: 733 snprintf(command_errbuf, sizeof(command_errbuf), 734 "usage: %s [list | get | set <mode> | off]", argv[0]); 735 return (CMD_ERROR); 736 } 737 738 COMMAND_SET(uga, "uga", "universal graphics adapter", command_uga); 739 740 static int 741 command_uga(int argc, char *argv[]) 742 { 743 struct efi_fb efifb; 744 EFI_UGA_DRAW_PROTOCOL *uga; 745 EFI_STATUS status; 746 747 status = BS->LocateProtocol(&uga_guid, NULL, (VOID **)&uga); 748 if (EFI_ERROR(status)) { 749 snprintf(command_errbuf, sizeof(command_errbuf), 750 "%s: UGA Protocol not present (error=%lu)", 751 argv[0], EFI_ERROR_CODE(status)); 752 return (CMD_ERROR); 753 } 754 755 if (argc != 1) 756 goto usage; 757 758 if (efifb_from_uga(&efifb, uga) != CMD_OK) { 759 snprintf(command_errbuf, sizeof(command_errbuf), 760 "%s: Unable to get UGA information", argv[0]); 761 return (CMD_ERROR); 762 } 763 764 print_efifb(-1, &efifb, 1); 765 printf("\n"); 766 return (CMD_OK); 767 768 usage: 769 snprintf(command_errbuf, sizeof(command_errbuf), "usage: %s", argv[0]); 770 return (CMD_ERROR); 771 } 772