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 31 #include <stand.h> 32 #include <bootstrap.h> 33 #include <sys/endian.h> 34 #include <sys/font.h> 35 #include <sys/consplat.h> 36 #include <sys/limits.h> 37 38 #include <efi.h> 39 #include <efilib.h> 40 #include <efiuga.h> 41 #include <efipciio.h> 42 #include <Protocol/EdidActive.h> 43 #include <Protocol/EdidDiscovered.h> 44 #include <machine/metadata.h> 45 46 #include "gfx_fb.h" 47 #include "framebuffer.h" 48 49 EFI_GUID gop_guid = EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID; 50 static EFI_GUID pciio_guid = EFI_PCI_IO_PROTOCOL_GUID; 51 EFI_GUID uga_guid = EFI_UGA_DRAW_PROTOCOL_GUID; 52 static EFI_GUID active_edid_guid = EFI_EDID_ACTIVE_PROTOCOL_GUID; 53 54 /* Saved initial GOP mode. */ 55 static uint32_t default_mode = UINT32_MAX; 56 /* Cached EDID. */ 57 static struct vesa_edid_info *edid_info; 58 59 static uint32_t gop_default_mode(void); 60 static int efifb_set_mode(EFI_GRAPHICS_OUTPUT *, uint_t); 61 62 static uint_t 63 efifb_color_depth(struct efi_fb *efifb) 64 { 65 uint32_t mask; 66 uint_t depth; 67 68 mask = efifb->fb_mask_red | efifb->fb_mask_green | 69 efifb->fb_mask_blue | efifb->fb_mask_reserved; 70 if (mask == 0) 71 return (0); 72 for (depth = 1; mask != 1; depth++) 73 mask >>= 1; 74 return (depth); 75 } 76 77 static int 78 efifb_mask_from_pixfmt(struct efi_fb *efifb, EFI_GRAPHICS_PIXEL_FORMAT pixfmt, 79 EFI_PIXEL_BITMASK *pixinfo) 80 { 81 int result; 82 83 result = 0; 84 switch (pixfmt) { 85 case PixelRedGreenBlueReserved8BitPerColor: 86 efifb->fb_mask_red = 0x000000ff; 87 efifb->fb_mask_green = 0x0000ff00; 88 efifb->fb_mask_blue = 0x00ff0000; 89 efifb->fb_mask_reserved = 0xff000000; 90 break; 91 case PixelBlueGreenRedReserved8BitPerColor: 92 efifb->fb_mask_red = 0x00ff0000; 93 efifb->fb_mask_green = 0x0000ff00; 94 efifb->fb_mask_blue = 0x000000ff; 95 efifb->fb_mask_reserved = 0xff000000; 96 break; 97 case PixelBitMask: 98 efifb->fb_mask_red = pixinfo->RedMask; 99 efifb->fb_mask_green = pixinfo->GreenMask; 100 efifb->fb_mask_blue = pixinfo->BlueMask; 101 efifb->fb_mask_reserved = pixinfo->ReservedMask; 102 break; 103 default: 104 result = 1; 105 break; 106 } 107 return (result); 108 } 109 110 static int 111 efifb_from_gop(struct efi_fb *efifb, EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE *mode, 112 EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *info) 113 { 114 int result; 115 116 efifb->fb_addr = mode->FrameBufferBase; 117 efifb->fb_size = mode->FrameBufferSize; 118 efifb->fb_height = info->VerticalResolution; 119 efifb->fb_width = info->HorizontalResolution; 120 efifb->fb_stride = info->PixelsPerScanLine; 121 result = efifb_mask_from_pixfmt(efifb, info->PixelFormat, 122 &info->PixelInformation); 123 if (efifb->fb_addr == 0) 124 result = 1; 125 return (result); 126 } 127 128 static ssize_t 129 efifb_uga_find_pixel(EFI_UGA_DRAW_PROTOCOL *uga, uint_t line, 130 EFI_PCI_IO_PROTOCOL *pciio, uint64_t addr, uint64_t size) 131 { 132 EFI_UGA_PIXEL pix0, pix1; 133 uint8_t *data1, *data2; 134 size_t count, maxcount = 1024; 135 ssize_t ofs; 136 EFI_STATUS status; 137 uint_t idx; 138 139 status = uga->Blt(uga, &pix0, EfiUgaVideoToBltBuffer, 140 0, line, 0, 0, 1, 1, 0); 141 if (EFI_ERROR(status)) { 142 printf("UGA BLT operation failed (video->buffer)"); 143 return (-1); 144 } 145 pix1.Red = ~pix0.Red; 146 pix1.Green = ~pix0.Green; 147 pix1.Blue = ~pix0.Blue; 148 pix1.Reserved = 0; 149 150 data1 = calloc(maxcount, 2); 151 if (data1 == NULL) { 152 printf("Unable to allocate memory"); 153 return (-1); 154 } 155 data2 = data1 + maxcount; 156 157 ofs = 0; 158 while (size > 0) { 159 count = min(size, maxcount); 160 161 status = pciio->Mem.Read(pciio, EfiPciIoWidthUint32, 162 EFI_PCI_IO_PASS_THROUGH_BAR, addr + ofs, count >> 2, 163 data1); 164 if (EFI_ERROR(status)) { 165 printf("Error reading frame buffer (before)"); 166 goto fail; 167 } 168 status = uga->Blt(uga, &pix1, EfiUgaBltBufferToVideo, 169 0, 0, 0, line, 1, 1, 0); 170 if (EFI_ERROR(status)) { 171 printf("UGA BLT operation failed (modify)"); 172 goto fail; 173 } 174 status = pciio->Mem.Read(pciio, EfiPciIoWidthUint32, 175 EFI_PCI_IO_PASS_THROUGH_BAR, addr + ofs, count >> 2, 176 data2); 177 if (EFI_ERROR(status)) { 178 printf("Error reading frame buffer (after)"); 179 goto fail; 180 } 181 status = uga->Blt(uga, &pix0, EfiUgaBltBufferToVideo, 182 0, 0, 0, line, 1, 1, 0); 183 if (EFI_ERROR(status)) { 184 printf("UGA BLT operation failed (restore)"); 185 goto fail; 186 } 187 for (idx = 0; idx < count; idx++) { 188 if (data1[idx] != data2[idx]) { 189 free(data1); 190 return (ofs + (idx & ~3)); 191 } 192 } 193 ofs += count; 194 size -= count; 195 } 196 printf("No change detected in frame buffer"); 197 198 fail: 199 printf(" -- error %lu\n", EFI_ERROR_CODE(status)); 200 free(data1); 201 return (-1); 202 } 203 204 static EFI_PCI_IO_PROTOCOL * 205 efifb_uga_get_pciio(void) 206 { 207 EFI_PCI_IO_PROTOCOL *pciio; 208 EFI_HANDLE *buf, *hp; 209 EFI_STATUS status; 210 UINTN bufsz; 211 212 /* Get all handles that support the UGA protocol. */ 213 bufsz = 0; 214 status = BS->LocateHandle(ByProtocol, &uga_guid, NULL, &bufsz, NULL); 215 if (status != EFI_BUFFER_TOO_SMALL) 216 return (NULL); 217 buf = malloc(bufsz); 218 status = BS->LocateHandle(ByProtocol, &uga_guid, NULL, &bufsz, buf); 219 if (status != EFI_SUCCESS) { 220 free(buf); 221 return (NULL); 222 } 223 bufsz /= sizeof (EFI_HANDLE); 224 225 /* Get the PCI I/O interface of the first handle that supports it. */ 226 pciio = NULL; 227 for (hp = buf; hp < buf + bufsz; hp++) { 228 status = OpenProtocolByHandle(*hp, &pciio_guid, 229 (void **)&pciio); 230 if (status == EFI_SUCCESS) { 231 free(buf); 232 return (pciio); 233 } 234 } 235 free(buf); 236 return (NULL); 237 } 238 239 static EFI_STATUS 240 efifb_uga_locate_framebuffer(EFI_PCI_IO_PROTOCOL *pciio, uint64_t *addrp, 241 uint64_t *sizep) 242 { 243 uint8_t *resattr; 244 uint64_t addr, size; 245 EFI_STATUS status; 246 uint_t bar; 247 248 if (pciio == NULL) 249 return (EFI_DEVICE_ERROR); 250 251 /* Attempt to get the frame buffer address (imprecise). */ 252 *addrp = 0; 253 *sizep = 0; 254 for (bar = 0; bar < 6; bar++) { 255 status = pciio->GetBarAttributes(pciio, bar, NULL, 256 (void **)&resattr); 257 if (status != EFI_SUCCESS) 258 continue; 259 /* XXX magic offsets and constants. */ 260 if (resattr[0] == 0x87 && resattr[3] == 0) { 261 /* 32-bit address space descriptor (MEMIO) */ 262 addr = le32dec(resattr + 10); 263 size = le32dec(resattr + 22); 264 } else if (resattr[0] == 0x8a && resattr[3] == 0) { 265 /* 64-bit address space descriptor (MEMIO) */ 266 addr = le64dec(resattr + 14); 267 size = le64dec(resattr + 38); 268 } else { 269 addr = 0; 270 size = 0; 271 } 272 BS->FreePool(resattr); 273 if (addr == 0 || size == 0) 274 continue; 275 276 /* We assume the largest BAR is the frame buffer. */ 277 if (size > *sizep) { 278 *addrp = addr; 279 *sizep = size; 280 } 281 } 282 return ((*addrp == 0 || *sizep == 0) ? EFI_DEVICE_ERROR : 0); 283 } 284 285 static int 286 efifb_from_uga(struct efi_fb *efifb, EFI_UGA_DRAW_PROTOCOL *uga) 287 { 288 EFI_PCI_IO_PROTOCOL *pciio; 289 char *ev, *p; 290 EFI_STATUS status; 291 ssize_t offset; 292 uint64_t fbaddr; 293 uint32_t horiz, vert, stride; 294 uint32_t np, depth, refresh; 295 296 status = uga->GetMode(uga, &horiz, &vert, &depth, &refresh); 297 if (EFI_ERROR(status)) 298 return (1); 299 efifb->fb_height = vert; 300 efifb->fb_width = horiz; 301 /* Paranoia... */ 302 if (efifb->fb_height == 0 || efifb->fb_width == 0) 303 return (1); 304 305 /* The color masks are fixed AFAICT. */ 306 efifb_mask_from_pixfmt(efifb, PixelBlueGreenRedReserved8BitPerColor, 307 NULL); 308 309 /* pciio can be NULL on return! */ 310 pciio = efifb_uga_get_pciio(); 311 312 /* Try to find the frame buffer. */ 313 status = efifb_uga_locate_framebuffer(pciio, &efifb->fb_addr, 314 &efifb->fb_size); 315 if (EFI_ERROR(status)) { 316 efifb->fb_addr = 0; 317 efifb->fb_size = 0; 318 } 319 320 /* 321 * There's no reliable way to detect the frame buffer or the 322 * offset within the frame buffer of the visible region, nor 323 * the stride. Our only option is to look at the system and 324 * fill in the blanks based on that. Luckily, UGA was mostly 325 * only used on Apple hardware. 326 */ 327 offset = -1; 328 ev = getenv("smbios.system.maker"); 329 if (ev != NULL && strcmp(ev, "Apple Inc.") == 0) { 330 ev = getenv("smbios.system.product"); 331 if (ev != NULL && strcmp(ev, "iMac7,1") == 0) { 332 /* These are the expected values we should have. */ 333 horiz = 1680; 334 vert = 1050; 335 fbaddr = 0xc0000000; 336 /* These are the missing bits. */ 337 offset = 0x10000; 338 stride = 1728; 339 } else if (ev != NULL && strcmp(ev, "MacBook3,1") == 0) { 340 /* These are the expected values we should have. */ 341 horiz = 1280; 342 vert = 800; 343 fbaddr = 0xc0000000; 344 /* These are the missing bits. */ 345 offset = 0x0; 346 stride = 2048; 347 } 348 } 349 350 /* 351 * If this is hardware we know, make sure that it looks familiar 352 * before we accept our hardcoded values. 353 */ 354 if (offset >= 0 && efifb->fb_width == horiz && 355 efifb->fb_height == vert && efifb->fb_addr == fbaddr) { 356 efifb->fb_addr += offset; 357 efifb->fb_size -= offset; 358 efifb->fb_stride = stride; 359 return (0); 360 } else if (offset >= 0) { 361 printf("Hardware make/model known, but graphics not " 362 "as expected.\n"); 363 printf("Console may not work!\n"); 364 } 365 366 /* 367 * The stride is equal or larger to the width. Often it's the 368 * next larger power of two. We'll start with that... 369 */ 370 efifb->fb_stride = efifb->fb_width; 371 do { 372 np = efifb->fb_stride & (efifb->fb_stride - 1); 373 if (np) { 374 efifb->fb_stride |= (np - 1); 375 efifb->fb_stride++; 376 } 377 } while (np); 378 379 ev = getenv("hw.efifb.address"); 380 if (ev == NULL) { 381 if (efifb->fb_addr == 0) { 382 printf("Please set hw.efifb.address and " 383 "hw.efifb.stride.\n"); 384 return (1); 385 } 386 387 /* 388 * The visible part of the frame buffer may not start at 389 * offset 0, so try to detect it. Note that we may not 390 * always be able to read from the frame buffer, which 391 * means that we may not be able to detect anything. In 392 * that case, we would take a long time scanning for a 393 * pixel change in the frame buffer, which would have it 394 * appear that we're hanging, so we limit the scan to 395 * 1/256th of the frame buffer. This number is mostly 396 * based on PR 202730 and the fact that on a MacBoook, 397 * where we can't read from the frame buffer the offset 398 * of the visible region is 0. In short: we want to scan 399 * enough to handle all adapters that have an offset 400 * larger than 0 and we want to scan as little as we can 401 * to not appear to hang when we can't read from the 402 * frame buffer. 403 */ 404 offset = efifb_uga_find_pixel(uga, 0, pciio, efifb->fb_addr, 405 efifb->fb_size >> 8); 406 if (offset == -1) { 407 printf("Unable to reliably detect frame buffer.\n"); 408 } else if (offset > 0) { 409 efifb->fb_addr += offset; 410 efifb->fb_size -= offset; 411 } 412 } else { 413 offset = 0; 414 efifb->fb_size = efifb->fb_height * efifb->fb_stride * 4; 415 efifb->fb_addr = strtoul(ev, &p, 0); 416 if (*p != '\0') 417 return (1); 418 } 419 420 ev = getenv("hw.efifb.stride"); 421 if (ev == NULL) { 422 if (pciio != NULL && offset != -1) { 423 /* Determine the stride. */ 424 offset = efifb_uga_find_pixel(uga, 1, pciio, 425 efifb->fb_addr, horiz * 8); 426 if (offset != -1) 427 efifb->fb_stride = offset >> 2; 428 } else { 429 printf("Unable to reliably detect the stride.\n"); 430 } 431 } else { 432 efifb->fb_stride = strtoul(ev, &p, 0); 433 if (*p != '\0') 434 return (1); 435 } 436 437 /* 438 * We finalized on the stride, so recalculate the size of the 439 * frame buffer. 440 */ 441 efifb->fb_size = efifb->fb_height * efifb->fb_stride * 4; 442 if (efifb->fb_addr == 0) 443 return (1); 444 return (0); 445 } 446 447 /* 448 * Fetch EDID info. Caller must free the buffer. 449 */ 450 static struct vesa_edid_info * 451 efifb_gop_get_edid(EFI_HANDLE gop) 452 { 453 const uint8_t magic[] = EDID_MAGIC; 454 EFI_EDID_ACTIVE_PROTOCOL *edid; 455 struct vesa_edid_info *edid_infop; 456 EFI_GUID *guid; 457 EFI_STATUS status; 458 size_t size; 459 460 guid = &active_edid_guid; 461 status = OpenProtocolByHandle(gop, guid, (void **)&edid); 462 if (status != EFI_SUCCESS) 463 return (NULL); 464 465 size = sizeof (*edid_infop); 466 if (size < edid->SizeOfEdid) 467 size = edid->SizeOfEdid; 468 469 edid_infop = calloc(1, size); 470 if (edid_infop == NULL) { 471 status = BS->CloseProtocol(gop, guid, IH, NULL); 472 return (NULL); 473 } 474 475 memcpy(edid_infop, edid->Edid, edid->SizeOfEdid); 476 status = BS->CloseProtocol(gop, guid, IH, NULL); 477 478 /* Validate EDID */ 479 if (memcmp(edid_infop, magic, sizeof (magic)) != 0) 480 goto error; 481 482 if (edid_infop->header.version != 1) 483 goto error; 484 485 return (edid_infop); 486 error: 487 free(edid_infop); 488 return (NULL); 489 } 490 491 static bool 492 efifb_get_edid(edid_res_list_t *res) 493 { 494 extern EFI_GRAPHICS_OUTPUT *gop; 495 bool rv = false; 496 497 if (edid_info == NULL) 498 edid_info = efifb_gop_get_edid(gop); 499 500 if (edid_info != NULL) 501 rv = gfx_get_edid_resolution(edid_info, res); 502 503 return (rv); 504 } 505 506 int 507 efi_find_framebuffer(struct efi_fb *efifb) 508 { 509 extern EFI_GRAPHICS_OUTPUT *gop; 510 extern EFI_UGA_DRAW_PROTOCOL *uga; 511 EFI_STATUS status; 512 uint32_t mode; 513 514 if (gop != NULL) 515 return (efifb_from_gop(efifb, gop->Mode, gop->Mode->Info)); 516 517 status = BS->LocateProtocol(&gop_guid, NULL, (void **)&gop); 518 if (status == EFI_SUCCESS) { 519 /* Save default mode. */ 520 if (default_mode == UINT32_MAX) { 521 default_mode = gop->Mode->Mode; 522 } 523 mode = gop_default_mode(); 524 if (mode != gop->Mode->Mode) 525 efifb_set_mode(gop, mode); 526 return (efifb_from_gop(efifb, gop->Mode, gop->Mode->Info)); 527 } 528 529 if (uga != NULL) 530 return (efifb_from_uga(efifb, uga)); 531 532 status = BS->LocateProtocol(&uga_guid, NULL, (void **)&uga); 533 if (status == EFI_SUCCESS) 534 return (efifb_from_uga(efifb, uga)); 535 536 return (1); 537 } 538 539 static void 540 print_efifb(int mode, struct efi_fb *efifb, int verbose) 541 { 542 uint_t depth; 543 edid_res_list_t res; 544 struct resolution *rp; 545 546 TAILQ_INIT(&res); 547 if (verbose == 1) { 548 printf("Framebuffer mode: %s\n", 549 plat_stdout_is_framebuffer() ? "on" : "off"); 550 if (efifb_get_edid(&res)) { 551 printf("EDID"); 552 while ((rp = TAILQ_FIRST(&res)) != NULL) { 553 printf(" %dx%d", rp->width, rp->height); 554 TAILQ_REMOVE(&res, rp, next); 555 free(rp); 556 } 557 printf("\n"); 558 } 559 } 560 561 if (mode >= 0) { 562 if (verbose == 1) 563 printf("GOP "); 564 printf("mode %d: ", mode); 565 } 566 depth = efifb_color_depth(efifb); 567 printf("%ux%ux%u", efifb->fb_width, efifb->fb_height, depth); 568 if (verbose) 569 printf(", stride=%u", efifb->fb_stride); 570 if (verbose) { 571 printf("\n frame buffer: address=%jx, size=%jx", 572 (uintmax_t)efifb->fb_addr, (uintmax_t)efifb->fb_size); 573 printf("\n color mask: R=%08x, G=%08x, B=%08x\n", 574 efifb->fb_mask_red, efifb->fb_mask_green, 575 efifb->fb_mask_blue); 576 if (efifb->fb_addr == 0) { 577 printf("Warning: this mode is not implementing the " 578 "linear framebuffer. The illumos\n\tconsole is " 579 "not available with this mode and will default to " 580 "ttya\n"); 581 } 582 } 583 } 584 585 static int 586 efifb_set_mode(EFI_GRAPHICS_OUTPUT *gop, uint_t mode) 587 { 588 EFI_STATUS status; 589 590 status = gop->SetMode(gop, mode); 591 if (EFI_ERROR(status)) { 592 snprintf(command_errbuf, sizeof (command_errbuf), 593 "Unable to set mode to %u (error=%lu)", 594 mode, EFI_ERROR_CODE(status)); 595 return (CMD_ERROR); 596 } 597 return (CMD_OK); 598 } 599 600 /* 601 * Verify existance of mode number or find mode by 602 * dimensions. If depth is not given, walk values 32, 24, 16, 8. 603 * Return MaxMode if mode is not found. 604 */ 605 static int 606 efifb_find_mode_xydm(UINT32 x, UINT32 y, int depth, int m) 607 { 608 extern EFI_GRAPHICS_OUTPUT *gop; 609 EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *info; 610 EFI_STATUS status; 611 UINTN infosz; 612 struct efi_fb fb; 613 UINT32 mode; 614 uint_t d, i; 615 616 if (m != -1) 617 i = 8; 618 else if (depth == -1) 619 i = 32; 620 else 621 i = depth; 622 623 while (i > 0) { 624 for (mode = 0; mode < gop->Mode->MaxMode; mode++) { 625 status = gop->QueryMode(gop, mode, &infosz, &info); 626 if (EFI_ERROR(status)) 627 continue; 628 629 if (m != -1) { 630 if ((UINT32)m == mode) 631 return (mode); 632 else 633 continue; 634 } 635 636 efifb_from_gop(&fb, gop->Mode, info); 637 d = efifb_color_depth(&fb); 638 if (x == fb.fb_width && y == fb.fb_height && d == i) 639 return (mode); 640 } 641 642 if (depth != -1) 643 break; 644 645 i -= 8; 646 } 647 648 return (gop->Mode->MaxMode); 649 } 650 651 static int 652 efifb_find_mode(char *str) 653 { 654 extern EFI_GRAPHICS_OUTPUT *gop; 655 int x, y, depth; 656 657 if (!gfx_parse_mode_str(str, &x, &y, &depth)) 658 return (gop->Mode->MaxMode); 659 660 return (efifb_find_mode_xydm(x, y, depth, -1)); 661 } 662 663 /* 664 * gop_default_mode(). Try to set mode based on EDID. 665 */ 666 static uint32_t 667 gop_default_mode(void) 668 { 669 edid_res_list_t res; 670 struct resolution *rp; 671 extern EFI_GRAPHICS_OUTPUT *gop; 672 UINT32 mode; 673 674 mode = gop->Mode->MaxMode; 675 TAILQ_INIT(&res); 676 if (efifb_get_edid(&res)) { 677 while ((rp = TAILQ_FIRST(&res)) != NULL) { 678 if (mode == gop->Mode->MaxMode) { 679 mode = efifb_find_mode_xydm( 680 rp->width, rp->height, -1, -1); 681 } 682 TAILQ_REMOVE(&res, rp, next); 683 free(rp); 684 } 685 } 686 687 if (mode == gop->Mode->MaxMode) 688 mode = default_mode; 689 690 return (mode); 691 } 692 693 COMMAND_SET(framebuffer, "framebuffer", "framebuffer mode management", 694 command_gop); 695 696 static int 697 command_gop(int argc, char *argv[]) 698 { 699 extern struct efi_fb efifb; 700 extern EFI_GRAPHICS_OUTPUT *gop; 701 struct efi_fb fb; 702 EFI_STATUS status; 703 char *arg, *cp; 704 uint_t mode; 705 706 if (gop == NULL) { 707 snprintf(command_errbuf, sizeof (command_errbuf), 708 "%s: Graphics Output Protocol not present", argv[0]); 709 return (CMD_ERROR); 710 } 711 712 if (argc < 2) 713 goto usage; 714 715 /* 716 * Note we can not turn the GOP itself off, but instead we instruct 717 * tem to use text mode. 718 */ 719 if (strcmp(argv[1], "off") == 0) { 720 if (argc != 2) 721 goto usage; 722 723 reset_font_flags(); 724 plat_cons_update_mode(EfiConsoleControlScreenText); 725 return (CMD_OK); 726 } 727 728 /* 729 * Set GOP to use default mode, then notify tem. 730 */ 731 if (strcmp(argv[1], "on") == 0) { 732 if (argc != 2) 733 goto usage; 734 735 reset_font_flags(); 736 mode = gop_default_mode(); 737 if (mode != gop->Mode->Mode) 738 efifb_set_mode(gop, mode); 739 740 plat_cons_update_mode(EfiConsoleControlScreenGraphics); 741 return (CMD_OK); 742 } 743 744 if (strcmp(argv[1], "set") == 0) { 745 int rv; 746 747 if (argc != 3) 748 goto usage; 749 750 arg = argv[2]; 751 if (strchr(arg, 'x') == NULL) { 752 errno = 0; 753 mode = strtoul(arg, &cp, 0); 754 if (errno != 0 || *arg == '\0' || cp[0] != '\0') { 755 snprintf(command_errbuf, 756 sizeof (command_errbuf), 757 "mode should be an integer"); 758 return (CMD_ERROR); 759 } 760 mode = efifb_find_mode_xydm(0, 0, 0, mode); 761 } else { 762 mode = efifb_find_mode(arg); 763 } 764 765 if (mode == gop->Mode->MaxMode) 766 mode = gop->Mode->Mode; 767 768 reset_font_flags(); 769 rv = efifb_set_mode(gop, mode); 770 plat_cons_update_mode(EfiConsoleControlScreenGraphics); 771 return (rv); 772 } 773 774 if (strcmp(argv[1], "get") == 0) { 775 if (argc != 2) 776 goto usage; 777 778 print_efifb(gop->Mode->Mode, &efifb, 1); 779 printf("\n"); 780 return (CMD_OK); 781 } 782 783 if (strcmp(argv[1], "list") == 0) { 784 EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *info; 785 UINTN infosz; 786 int depth, d = -1; 787 788 if (argc != 2 && argc != 3) 789 goto usage; 790 791 if (argc == 3) { 792 arg = argv[2]; 793 errno = 0; 794 d = strtoul(arg, &cp, 0); 795 if (errno != 0 || *arg == '\0' || cp[0] != '\0') { 796 snprintf(command_errbuf, 797 sizeof (command_errbuf), 798 "depth should be an integer"); 799 return (CMD_ERROR); 800 } 801 } 802 pager_open(); 803 for (mode = 0; mode < gop->Mode->MaxMode; mode++) { 804 status = gop->QueryMode(gop, mode, &infosz, &info); 805 if (EFI_ERROR(status)) 806 continue; 807 efifb_from_gop(&fb, gop->Mode, info); 808 depth = efifb_color_depth(&fb); 809 if (d != -1 && d != depth) 810 continue; 811 print_efifb(mode, &fb, 0); 812 if (pager_output("\n")) 813 break; 814 } 815 pager_close(); 816 return (CMD_OK); 817 } 818 819 usage: 820 snprintf(command_errbuf, sizeof (command_errbuf), 821 "usage: %s on | off | get | list [depth] | " 822 "set <display or GOP mode number>", argv[0]); 823 return (CMD_ERROR); 824 } 825 826 COMMAND_SET(uga, "uga", "universal graphics adapter", command_uga); 827 828 static int 829 command_uga(int argc, char *argv[]) 830 { 831 extern struct efi_fb efifb; 832 extern EFI_UGA_DRAW_PROTOCOL *uga; 833 834 if (uga == NULL) { 835 snprintf(command_errbuf, sizeof (command_errbuf), 836 "%s: UGA Protocol not present", argv[0]); 837 return (CMD_ERROR); 838 } 839 840 if (argc != 1) 841 goto usage; 842 843 if (efifb.fb_addr == 0) { 844 snprintf(command_errbuf, sizeof (command_errbuf), 845 "%s: Unable to get UGA information", argv[0]); 846 return (CMD_ERROR); 847 } 848 849 print_efifb(-1, &efifb, 1); 850 printf("\n"); 851 return (CMD_OK); 852 853 usage: 854 snprintf(command_errbuf, sizeof (command_errbuf), "usage: %s", argv[0]); 855 return (CMD_ERROR); 856 } 857