1 /*- 2 * Copyright (c) 2013 The FreeBSD Foundation 3 * 4 * This software was developed by Benno Rice under sponsorship from 5 * the FreeBSD Foundation. 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 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 AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28 #include <sys/cdefs.h> 29 #include <bootstrap.h> 30 #include <sys/endian.h> 31 #include <sys/param.h> 32 #include <stand.h> 33 34 #include <efi.h> 35 #include <efilib.h> 36 #include <efiuga.h> 37 #include <efipciio.h> 38 #include <Protocol/EdidActive.h> 39 #include <Protocol/EdidDiscovered.h> 40 #include <machine/metadata.h> 41 42 #include "bootstrap.h" 43 #include "framebuffer.h" 44 45 static EFI_GUID conout_guid = EFI_CONSOLE_OUT_DEVICE_GUID; 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 static EFI_GUID active_edid_guid = EFI_EDID_ACTIVE_PROTOCOL_GUID; 50 static EFI_GUID discovered_edid_guid = EFI_EDID_DISCOVERED_PROTOCOL_GUID; 51 static EFI_HANDLE gop_handle; 52 53 /* Cached EDID. */ 54 struct vesa_edid_info *edid_info = NULL; 55 56 static EFI_GRAPHICS_OUTPUT *gop; 57 static EFI_UGA_DRAW_PROTOCOL *uga; 58 59 static struct named_resolution { 60 const char *name; 61 const char *alias; 62 unsigned int width; 63 unsigned int height; 64 } resolutions[] = { 65 { 66 .name = "480p", 67 .width = 640, 68 .height = 480, 69 }, 70 { 71 .name = "720p", 72 .width = 1280, 73 .height = 720, 74 }, 75 { 76 .name = "1080p", 77 .width = 1920, 78 .height = 1080, 79 }, 80 { 81 .name = "1440p", 82 .width = 2560, 83 .height = 1440, 84 }, 85 { 86 .name = "2160p", 87 .alias = "4k", 88 .width = 3840, 89 .height = 2160, 90 }, 91 { 92 .name = "5k", 93 .width = 5120, 94 .height = 2880, 95 } 96 }; 97 98 static u_int 99 efifb_color_depth(struct efi_fb *efifb) 100 { 101 uint32_t mask; 102 u_int depth; 103 104 mask = efifb->fb_mask_red | efifb->fb_mask_green | 105 efifb->fb_mask_blue | efifb->fb_mask_reserved; 106 if (mask == 0) 107 return (0); 108 for (depth = 1; mask != 1; depth++) 109 mask >>= 1; 110 return (depth); 111 } 112 113 static int 114 efifb_mask_from_pixfmt(struct efi_fb *efifb, EFI_GRAPHICS_PIXEL_FORMAT pixfmt, 115 EFI_PIXEL_BITMASK *pixinfo) 116 { 117 int result; 118 119 result = 0; 120 switch (pixfmt) { 121 case PixelRedGreenBlueReserved8BitPerColor: 122 case PixelBltOnly: 123 efifb->fb_mask_red = 0x000000ff; 124 efifb->fb_mask_green = 0x0000ff00; 125 efifb->fb_mask_blue = 0x00ff0000; 126 efifb->fb_mask_reserved = 0xff000000; 127 break; 128 case PixelBlueGreenRedReserved8BitPerColor: 129 efifb->fb_mask_red = 0x00ff0000; 130 efifb->fb_mask_green = 0x0000ff00; 131 efifb->fb_mask_blue = 0x000000ff; 132 efifb->fb_mask_reserved = 0xff000000; 133 break; 134 case PixelBitMask: 135 efifb->fb_mask_red = pixinfo->RedMask; 136 efifb->fb_mask_green = pixinfo->GreenMask; 137 efifb->fb_mask_blue = pixinfo->BlueMask; 138 efifb->fb_mask_reserved = pixinfo->ReservedMask; 139 break; 140 default: 141 result = 1; 142 break; 143 } 144 return (result); 145 } 146 147 static int 148 efifb_from_gop(struct efi_fb *efifb, EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE *mode, 149 EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *info) 150 { 151 int result; 152 153 efifb->fb_addr = mode->FrameBufferBase; 154 efifb->fb_size = mode->FrameBufferSize; 155 efifb->fb_height = info->VerticalResolution; 156 efifb->fb_width = info->HorizontalResolution; 157 efifb->fb_stride = info->PixelsPerScanLine; 158 result = efifb_mask_from_pixfmt(efifb, info->PixelFormat, 159 &info->PixelInformation); 160 return (result); 161 } 162 163 static ssize_t 164 efifb_uga_find_pixel(EFI_UGA_DRAW_PROTOCOL *uga, u_int line, 165 EFI_PCI_IO_PROTOCOL *pciio, uint64_t addr, uint64_t size) 166 { 167 EFI_UGA_PIXEL pix0, pix1; 168 uint8_t *data1, *data2; 169 size_t count, maxcount = 1024; 170 ssize_t ofs; 171 EFI_STATUS status; 172 u_int idx; 173 174 status = uga->Blt(uga, &pix0, EfiUgaVideoToBltBuffer, 175 0, line, 0, 0, 1, 1, 0); 176 if (EFI_ERROR(status)) { 177 printf("UGA BLT operation failed (video->buffer)"); 178 return (-1); 179 } 180 pix1.Red = ~pix0.Red; 181 pix1.Green = ~pix0.Green; 182 pix1.Blue = ~pix0.Blue; 183 pix1.Reserved = 0; 184 185 data1 = calloc(maxcount, 2); 186 if (data1 == NULL) { 187 printf("Unable to allocate memory"); 188 return (-1); 189 } 190 data2 = data1 + maxcount; 191 192 ofs = 0; 193 while (size > 0) { 194 count = min(size, maxcount); 195 196 status = pciio->Mem.Read(pciio, EfiPciIoWidthUint32, 197 EFI_PCI_IO_PASS_THROUGH_BAR, addr + ofs, count >> 2, 198 data1); 199 if (EFI_ERROR(status)) { 200 printf("Error reading frame buffer (before)"); 201 goto fail; 202 } 203 status = uga->Blt(uga, &pix1, EfiUgaBltBufferToVideo, 204 0, 0, 0, line, 1, 1, 0); 205 if (EFI_ERROR(status)) { 206 printf("UGA BLT operation failed (modify)"); 207 goto fail; 208 } 209 status = pciio->Mem.Read(pciio, EfiPciIoWidthUint32, 210 EFI_PCI_IO_PASS_THROUGH_BAR, addr + ofs, count >> 2, 211 data2); 212 if (EFI_ERROR(status)) { 213 printf("Error reading frame buffer (after)"); 214 goto fail; 215 } 216 status = uga->Blt(uga, &pix0, EfiUgaBltBufferToVideo, 217 0, 0, 0, line, 1, 1, 0); 218 if (EFI_ERROR(status)) { 219 printf("UGA BLT operation failed (restore)"); 220 goto fail; 221 } 222 for (idx = 0; idx < count; idx++) { 223 if (data1[idx] != data2[idx]) { 224 free(data1); 225 return (ofs + (idx & ~3)); 226 } 227 } 228 ofs += count; 229 size -= count; 230 } 231 printf("No change detected in frame buffer"); 232 233 fail: 234 printf(" -- error %lu\n", EFI_ERROR_CODE(status)); 235 free(data1); 236 return (-1); 237 } 238 239 static EFI_PCI_IO_PROTOCOL * 240 efifb_uga_get_pciio(void) 241 { 242 EFI_PCI_IO_PROTOCOL *pciio; 243 EFI_HANDLE *buf, *hp; 244 EFI_STATUS status; 245 UINTN bufsz; 246 247 /* Get all handles that support the UGA protocol. */ 248 bufsz = 0; 249 status = BS->LocateHandle(ByProtocol, &uga_guid, NULL, &bufsz, NULL); 250 if (status != EFI_BUFFER_TOO_SMALL) 251 return (NULL); 252 buf = malloc(bufsz); 253 status = BS->LocateHandle(ByProtocol, &uga_guid, NULL, &bufsz, buf); 254 if (status != EFI_SUCCESS) { 255 free(buf); 256 return (NULL); 257 } 258 bufsz /= sizeof(EFI_HANDLE); 259 260 /* Get the PCI I/O interface of the first handle that supports it. */ 261 pciio = NULL; 262 for (hp = buf; hp < buf + bufsz; hp++) { 263 status = OpenProtocolByHandle(*hp, &pciio_guid, 264 (void **)&pciio); 265 if (status == EFI_SUCCESS) { 266 free(buf); 267 return (pciio); 268 } 269 } 270 free(buf); 271 return (NULL); 272 } 273 274 static EFI_STATUS 275 efifb_uga_locate_framebuffer(EFI_PCI_IO_PROTOCOL *pciio, uint64_t *addrp, 276 uint64_t *sizep) 277 { 278 uint8_t *resattr; 279 uint64_t addr, size; 280 EFI_STATUS status; 281 u_int bar; 282 283 if (pciio == NULL) 284 return (EFI_DEVICE_ERROR); 285 286 /* Attempt to get the frame buffer address (imprecise). */ 287 *addrp = 0; 288 *sizep = 0; 289 for (bar = 0; bar < 6; bar++) { 290 status = pciio->GetBarAttributes(pciio, bar, NULL, 291 (void **)&resattr); 292 if (status != EFI_SUCCESS) 293 continue; 294 /* XXX magic offsets and constants. */ 295 if (resattr[0] == 0x87 && resattr[3] == 0) { 296 /* 32-bit address space descriptor (MEMIO) */ 297 addr = le32dec(resattr + 10); 298 size = le32dec(resattr + 22); 299 } else if (resattr[0] == 0x8a && resattr[3] == 0) { 300 /* 64-bit address space descriptor (MEMIO) */ 301 addr = le64dec(resattr + 14); 302 size = le64dec(resattr + 38); 303 } else { 304 addr = 0; 305 size = 0; 306 } 307 BS->FreePool(resattr); 308 if (addr == 0 || size == 0) 309 continue; 310 311 /* We assume the largest BAR is the frame buffer. */ 312 if (size > *sizep) { 313 *addrp = addr; 314 *sizep = size; 315 } 316 } 317 return ((*addrp == 0 || *sizep == 0) ? EFI_DEVICE_ERROR : 0); 318 } 319 320 static int 321 efifb_from_uga(struct efi_fb *efifb) 322 { 323 EFI_PCI_IO_PROTOCOL *pciio; 324 char *ev, *p; 325 EFI_STATUS status; 326 ssize_t offset; 327 uint64_t fbaddr; 328 uint32_t horiz, vert, stride; 329 uint32_t np, depth, refresh; 330 331 status = uga->GetMode(uga, &horiz, &vert, &depth, &refresh); 332 if (EFI_ERROR(status)) 333 return (1); 334 efifb->fb_height = vert; 335 efifb->fb_width = horiz; 336 /* Paranoia... */ 337 if (efifb->fb_height == 0 || efifb->fb_width == 0) 338 return (1); 339 340 /* The color masks are fixed AFAICT. */ 341 efifb_mask_from_pixfmt(efifb, PixelBlueGreenRedReserved8BitPerColor, 342 NULL); 343 344 /* pciio can be NULL on return! */ 345 pciio = efifb_uga_get_pciio(); 346 347 /* Try to find the frame buffer. */ 348 status = efifb_uga_locate_framebuffer(pciio, &efifb->fb_addr, 349 &efifb->fb_size); 350 if (EFI_ERROR(status)) { 351 efifb->fb_addr = 0; 352 efifb->fb_size = 0; 353 } 354 355 /* 356 * There's no reliable way to detect the frame buffer or the 357 * offset within the frame buffer of the visible region, nor 358 * the stride. Our only option is to look at the system and 359 * fill in the blanks based on that. Luckily, UGA was mostly 360 * only used on Apple hardware. 361 */ 362 offset = -1; 363 ev = getenv("smbios.system.maker"); 364 if (ev != NULL && !strcmp(ev, "Apple Inc.")) { 365 ev = getenv("smbios.system.product"); 366 if (ev != NULL && !strcmp(ev, "iMac7,1")) { 367 /* These are the expected values we should have. */ 368 horiz = 1680; 369 vert = 1050; 370 fbaddr = 0xc0000000; 371 /* These are the missing bits. */ 372 offset = 0x10000; 373 stride = 1728; 374 } else if (ev != NULL && !strcmp(ev, "MacBook3,1")) { 375 /* These are the expected values we should have. */ 376 horiz = 1280; 377 vert = 800; 378 fbaddr = 0xc0000000; 379 /* These are the missing bits. */ 380 offset = 0x0; 381 stride = 2048; 382 } 383 } 384 385 /* 386 * If this is hardware we know, make sure that it looks familiar 387 * before we accept our hardcoded values. 388 */ 389 if (offset >= 0 && efifb->fb_width == horiz && 390 efifb->fb_height == vert && efifb->fb_addr == fbaddr) { 391 efifb->fb_addr += offset; 392 efifb->fb_size -= offset; 393 efifb->fb_stride = stride; 394 return (0); 395 } else if (offset >= 0) { 396 printf("Hardware make/model known, but graphics not " 397 "as expected.\n"); 398 printf("Console may not work!\n"); 399 } 400 401 /* 402 * The stride is equal or larger to the width. Often it's the 403 * next larger power of two. We'll start with that... 404 */ 405 efifb->fb_stride = efifb->fb_width; 406 do { 407 np = efifb->fb_stride & (efifb->fb_stride - 1); 408 if (np) { 409 efifb->fb_stride |= (np - 1); 410 efifb->fb_stride++; 411 } 412 } while (np); 413 414 ev = getenv("hw.efifb.address"); 415 if (ev == NULL) { 416 if (efifb->fb_addr == 0) { 417 printf("Please set hw.efifb.address and " 418 "hw.efifb.stride.\n"); 419 return (1); 420 } 421 422 /* 423 * The visible part of the frame buffer may not start at 424 * offset 0, so try to detect it. Note that we may not 425 * always be able to read from the frame buffer, which 426 * means that we may not be able to detect anything. In 427 * that case, we would take a long time scanning for a 428 * pixel change in the frame buffer, which would have it 429 * appear that we're hanging, so we limit the scan to 430 * 1/256th of the frame buffer. This number is mostly 431 * based on PR 202730 and the fact that on a MacBoook, 432 * where we can't read from the frame buffer the offset 433 * of the visible region is 0. In short: we want to scan 434 * enough to handle all adapters that have an offset 435 * larger than 0 and we want to scan as little as we can 436 * to not appear to hang when we can't read from the 437 * frame buffer. 438 */ 439 offset = efifb_uga_find_pixel(uga, 0, pciio, efifb->fb_addr, 440 efifb->fb_size >> 8); 441 if (offset == -1) { 442 printf("Unable to reliably detect frame buffer.\n"); 443 } else if (offset > 0) { 444 efifb->fb_addr += offset; 445 efifb->fb_size -= offset; 446 } 447 } else { 448 offset = 0; 449 efifb->fb_size = efifb->fb_height * efifb->fb_stride * 4; 450 efifb->fb_addr = strtoul(ev, &p, 0); 451 if (*p != '\0') 452 return (1); 453 } 454 455 ev = getenv("hw.efifb.stride"); 456 if (ev == NULL) { 457 if (pciio != NULL && offset != -1) { 458 /* Determine the stride. */ 459 offset = efifb_uga_find_pixel(uga, 1, pciio, 460 efifb->fb_addr, horiz * 8); 461 if (offset != -1) 462 efifb->fb_stride = offset >> 2; 463 } else { 464 printf("Unable to reliably detect the stride.\n"); 465 } 466 } else { 467 efifb->fb_stride = strtoul(ev, &p, 0); 468 if (*p != '\0') 469 return (1); 470 } 471 472 /* 473 * We finalized on the stride, so recalculate the size of the 474 * frame buffer. 475 */ 476 efifb->fb_size = efifb->fb_height * efifb->fb_stride * 4; 477 return (0); 478 } 479 480 /* 481 * Fetch EDID info. Caller must free the buffer. 482 */ 483 static struct vesa_edid_info * 484 efifb_gop_get_edid(EFI_HANDLE h) 485 { 486 const uint8_t magic[] = EDID_MAGIC; 487 EFI_EDID_ACTIVE_PROTOCOL *edid; 488 struct vesa_edid_info *edid_infop; 489 EFI_GUID *guid; 490 EFI_STATUS status; 491 size_t size; 492 493 guid = &active_edid_guid; 494 status = BS->OpenProtocol(h, guid, (void **)&edid, IH, NULL, 495 EFI_OPEN_PROTOCOL_GET_PROTOCOL); 496 if (status != EFI_SUCCESS || 497 edid->SizeOfEdid == 0) { 498 guid = &discovered_edid_guid; 499 status = BS->OpenProtocol(h, guid, (void **)&edid, IH, NULL, 500 EFI_OPEN_PROTOCOL_GET_PROTOCOL); 501 if (status != EFI_SUCCESS || 502 edid->SizeOfEdid == 0) 503 return (NULL); 504 } 505 506 size = MAX(sizeof(*edid_infop), edid->SizeOfEdid); 507 508 edid_infop = calloc(1, size); 509 if (edid_infop == NULL) 510 return (NULL); 511 512 memcpy(edid_infop, edid->Edid, edid->SizeOfEdid); 513 514 /* Validate EDID */ 515 if (memcmp(edid_infop, magic, sizeof (magic)) != 0) 516 goto error; 517 518 if (edid_infop->header.version != 1) 519 goto error; 520 521 return (edid_infop); 522 error: 523 free(edid_infop); 524 return (NULL); 525 } 526 527 static bool 528 efifb_get_edid(edid_res_list_t *res) 529 { 530 bool rv = false; 531 532 if (edid_info == NULL) 533 edid_info = efifb_gop_get_edid(gop_handle); 534 535 if (edid_info != NULL) 536 rv = gfx_get_edid_resolution(edid_info, res); 537 538 return (rv); 539 } 540 541 bool 542 efi_has_gop(void) 543 { 544 EFI_STATUS status; 545 EFI_HANDLE *hlist; 546 UINTN hsize; 547 548 hsize = 0; 549 hlist = NULL; 550 status = BS->LocateHandle(ByProtocol, &gop_guid, NULL, &hsize, hlist); 551 552 return (status == EFI_BUFFER_TOO_SMALL); 553 } 554 555 556 int 557 efi_find_framebuffer(teken_gfx_t *gfx_state) 558 { 559 EFI_HANDLE *hlist; 560 UINTN nhandles, i, hsize; 561 struct efi_fb efifb; 562 EFI_STATUS status; 563 int rv; 564 565 gfx_state->tg_fb_type = FB_TEXT; 566 567 hsize = 0; 568 hlist = NULL; 569 status = BS->LocateHandle(ByProtocol, &gop_guid, NULL, &hsize, hlist); 570 if (status == EFI_BUFFER_TOO_SMALL) { 571 hlist = malloc(hsize); 572 if (hlist == NULL) 573 return (ENOMEM); 574 status = BS->LocateHandle(ByProtocol, &gop_guid, NULL, &hsize, 575 hlist); 576 if (EFI_ERROR(status)) 577 free(hlist); 578 } 579 if (EFI_ERROR(status)) 580 return (efi_status_to_errno(status)); 581 582 nhandles = hsize / sizeof(*hlist); 583 584 /* 585 * Search for ConOut protocol, if not found, use first handle. 586 */ 587 gop_handle = NULL; 588 for (i = 0; i < nhandles; i++) { 589 EFI_GRAPHICS_OUTPUT *tgop; 590 void *dummy; 591 592 status = OpenProtocolByHandle(hlist[i], &gop_guid, (void **)&tgop); 593 if (status != EFI_SUCCESS) 594 continue; 595 596 if (tgop->Mode->Info->PixelFormat == PixelBltOnly || 597 tgop->Mode->Info->PixelFormat >= PixelFormatMax) 598 continue; 599 600 status = OpenProtocolByHandle(hlist[i], &conout_guid, &dummy); 601 if (status == EFI_SUCCESS) { 602 gop_handle = hlist[i]; 603 gop = tgop; 604 break; 605 } else if (gop_handle == NULL) { 606 gop_handle = hlist[i]; 607 gop = tgop; 608 } 609 } 610 611 free(hlist); 612 613 if (gop_handle != NULL) { 614 gfx_state->tg_fb_type = FB_GOP; 615 gfx_state->tg_private = gop; 616 if (edid_info == NULL) 617 edid_info = efifb_gop_get_edid(gop_handle); 618 } else { 619 status = BS->LocateProtocol(&uga_guid, NULL, (VOID **)&uga); 620 if (status == EFI_SUCCESS) { 621 gfx_state->tg_fb_type = FB_UGA; 622 gfx_state->tg_private = uga; 623 } else { 624 return (1); 625 } 626 } 627 628 switch (gfx_state->tg_fb_type) { 629 case FB_GOP: 630 rv = efifb_from_gop(&efifb, gop->Mode, gop->Mode->Info); 631 break; 632 633 case FB_UGA: 634 rv = efifb_from_uga(&efifb); 635 break; 636 637 default: 638 return (1); 639 } 640 641 gfx_state->tg_fb.fb_addr = efifb.fb_addr; 642 gfx_state->tg_fb.fb_size = efifb.fb_size; 643 gfx_state->tg_fb.fb_height = efifb.fb_height; 644 gfx_state->tg_fb.fb_width = efifb.fb_width; 645 gfx_state->tg_fb.fb_stride = efifb.fb_stride; 646 gfx_state->tg_fb.fb_mask_red = efifb.fb_mask_red; 647 gfx_state->tg_fb.fb_mask_green = efifb.fb_mask_green; 648 gfx_state->tg_fb.fb_mask_blue = efifb.fb_mask_blue; 649 gfx_state->tg_fb.fb_mask_reserved = efifb.fb_mask_reserved; 650 651 gfx_state->tg_fb.fb_bpp = fls(efifb.fb_mask_red | efifb.fb_mask_green | 652 efifb.fb_mask_blue | efifb.fb_mask_reserved); 653 654 if (gfx_state->tg_shadow_fb != NULL) 655 BS->FreePages((EFI_PHYSICAL_ADDRESS)gfx_state->tg_shadow_fb, 656 gfx_state->tg_shadow_sz); 657 gfx_state->tg_shadow_sz = 658 EFI_SIZE_TO_PAGES(efifb.fb_height * efifb.fb_width * 659 sizeof(EFI_GRAPHICS_OUTPUT_BLT_PIXEL)); 660 status = BS->AllocatePages(AllocateMaxAddress, EfiLoaderData, 661 gfx_state->tg_shadow_sz, 662 (EFI_PHYSICAL_ADDRESS *)&gfx_state->tg_shadow_fb); 663 if (status != EFI_SUCCESS) 664 gfx_state->tg_shadow_fb = NULL; 665 666 return (0); 667 } 668 669 static void 670 print_efifb(int mode, struct efi_fb *efifb, int verbose) 671 { 672 u_int depth; 673 674 if (mode >= 0) 675 printf("mode %d: ", mode); 676 depth = efifb_color_depth(efifb); 677 printf("%ux%ux%u, stride=%u", efifb->fb_width, efifb->fb_height, 678 depth, efifb->fb_stride); 679 if (verbose) { 680 printf("\n frame buffer: address=%jx, size=%jx", 681 (uintmax_t)efifb->fb_addr, (uintmax_t)efifb->fb_size); 682 printf("\n color mask: R=%08x, G=%08x, B=%08x\n", 683 efifb->fb_mask_red, efifb->fb_mask_green, 684 efifb->fb_mask_blue); 685 } 686 } 687 688 static bool 689 efi_resolution_compare(struct named_resolution *res, const char *cmp) 690 { 691 692 if (strcasecmp(res->name, cmp) == 0) 693 return (true); 694 if (res->alias != NULL && strcasecmp(res->alias, cmp) == 0) 695 return (true); 696 return (false); 697 } 698 699 700 static void 701 efi_get_max_resolution(int *width, int *height) 702 { 703 struct named_resolution *res; 704 char *maxres; 705 char *height_start, *width_start; 706 int idx; 707 708 *width = *height = 0; 709 maxres = getenv("efi_max_resolution"); 710 /* No max_resolution set? Bail out; choose highest resolution */ 711 if (maxres == NULL) 712 return; 713 /* See if it matches one of our known resolutions */ 714 for (idx = 0; idx < nitems(resolutions); ++idx) { 715 res = &resolutions[idx]; 716 if (efi_resolution_compare(res, maxres)) { 717 *width = res->width; 718 *height = res->height; 719 return; 720 } 721 } 722 /* Not a known resolution, try to parse it; make a copy we can modify */ 723 maxres = strdup(maxres); 724 if (maxres == NULL) 725 return; 726 height_start = strchr(maxres, 'x'); 727 if (height_start == NULL) { 728 free(maxres); 729 return; 730 } 731 width_start = maxres; 732 *height_start++ = 0; 733 /* Errors from this will effectively mean "no max" */ 734 *width = (int)strtol(width_start, NULL, 0); 735 *height = (int)strtol(height_start, NULL, 0); 736 free(maxres); 737 } 738 739 static int 740 gop_autoresize(void) 741 { 742 struct efi_fb efifb; 743 EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *info; 744 EFI_STATUS status; 745 UINTN infosz; 746 UINT32 best_mode, currdim, maxdim, mode; 747 int height, max_height, max_width, width; 748 749 best_mode = maxdim = 0; 750 efi_get_max_resolution(&max_width, &max_height); 751 for (mode = 0; mode < gop->Mode->MaxMode; mode++) { 752 status = gop->QueryMode(gop, mode, &infosz, &info); 753 if (EFI_ERROR(status)) 754 continue; 755 efifb_from_gop(&efifb, gop->Mode, info); 756 width = info->HorizontalResolution; 757 height = info->VerticalResolution; 758 currdim = width * height; 759 if (currdim > maxdim) { 760 if ((max_width != 0 && width > max_width) || 761 (max_height != 0 && height > max_height)) 762 continue; 763 maxdim = currdim; 764 best_mode = mode; 765 } 766 } 767 768 if (maxdim != 0) { 769 status = gop->SetMode(gop, best_mode); 770 if (EFI_ERROR(status)) { 771 snprintf(command_errbuf, sizeof(command_errbuf), 772 "gop_autoresize: Unable to set mode to %u (error=%lu)", 773 mode, EFI_ERROR_CODE(status)); 774 return (CMD_ERROR); 775 } 776 (void) cons_update_mode(true); 777 } 778 return (CMD_OK); 779 } 780 781 static int 782 text_autoresize() 783 { 784 SIMPLE_TEXT_OUTPUT_INTERFACE *conout; 785 EFI_STATUS status; 786 UINTN i, max_dim, best_mode, cols, rows; 787 788 conout = ST->ConOut; 789 max_dim = best_mode = 0; 790 for (i = 0; i < conout->Mode->MaxMode; i++) { 791 status = conout->QueryMode(conout, i, &cols, &rows); 792 if (EFI_ERROR(status)) 793 continue; 794 if (cols * rows > max_dim) { 795 max_dim = cols * rows; 796 best_mode = i; 797 } 798 } 799 if (max_dim > 0) 800 conout->SetMode(conout, best_mode); 801 (void) cons_update_mode(true); 802 return (CMD_OK); 803 } 804 805 static int 806 uga_autoresize(void) 807 { 808 809 return (text_autoresize()); 810 } 811 812 COMMAND_SET(efi_autoresize, "efi-autoresizecons", "EFI Auto-resize Console", command_autoresize); 813 814 static int 815 command_autoresize(int argc, char *argv[]) 816 { 817 char *textmode; 818 819 textmode = getenv("hw.vga.textmode"); 820 /* If it's set and non-zero, we'll select a console mode instead */ 821 if (textmode != NULL && strcmp(textmode, "0") != 0) 822 return (text_autoresize()); 823 824 if (gop != NULL) 825 return (gop_autoresize()); 826 827 if (uga != NULL) 828 return (uga_autoresize()); 829 830 snprintf(command_errbuf, sizeof(command_errbuf), 831 "%s: Neither Graphics Output Protocol nor Universal Graphics Adapter present", 832 argv[0]); 833 834 /* 835 * Default to text_autoresize if we have neither GOP or UGA. This won't 836 * give us the most ideal resolution, but it will at least leave us 837 * functional rather than failing the boot for an objectively bad 838 * reason. 839 */ 840 return (text_autoresize()); 841 } 842 843 COMMAND_SET(gop, "gop", "graphics output protocol", command_gop); 844 845 static int 846 command_gop(int argc, char *argv[]) 847 { 848 struct efi_fb efifb; 849 EFI_STATUS status; 850 u_int mode; 851 852 if (gop == NULL) { 853 snprintf(command_errbuf, sizeof(command_errbuf), 854 "%s: Graphics Output Protocol not present", argv[0]); 855 return (CMD_ERROR); 856 } 857 858 if (argc < 2) 859 goto usage; 860 861 if (!strcmp(argv[1], "set")) { 862 char *cp; 863 864 if (argc != 3) 865 goto usage; 866 mode = strtol(argv[2], &cp, 0); 867 if (cp[0] != '\0') { 868 sprintf(command_errbuf, "mode is an integer"); 869 return (CMD_ERROR); 870 } 871 status = gop->SetMode(gop, mode); 872 if (EFI_ERROR(status)) { 873 snprintf(command_errbuf, sizeof(command_errbuf), 874 "%s: Unable to set mode to %u (error=%lu)", 875 argv[0], mode, EFI_ERROR_CODE(status)); 876 return (CMD_ERROR); 877 } 878 (void) cons_update_mode(true); 879 } else if (strcmp(argv[1], "off") == 0) { 880 (void) cons_update_mode(false); 881 } else if (strcmp(argv[1], "get") == 0) { 882 edid_res_list_t res; 883 884 if (argc != 2) 885 goto usage; 886 TAILQ_INIT(&res); 887 efifb_from_gop(&efifb, gop->Mode, gop->Mode->Info); 888 if (efifb_get_edid(&res)) { 889 struct resolution *rp; 890 891 printf("EDID"); 892 while ((rp = TAILQ_FIRST(&res)) != NULL) { 893 printf(" %dx%d", rp->width, rp->height); 894 TAILQ_REMOVE(&res, rp, next); 895 free(rp); 896 } 897 printf("\n"); 898 } else { 899 printf("no EDID information\n"); 900 } 901 print_efifb(gop->Mode->Mode, &efifb, 1); 902 printf("\n"); 903 } else if (!strcmp(argv[1], "list")) { 904 EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *info; 905 UINTN infosz; 906 907 if (argc != 2) 908 goto usage; 909 910 pager_open(); 911 for (mode = 0; mode < gop->Mode->MaxMode; mode++) { 912 status = gop->QueryMode(gop, mode, &infosz, &info); 913 if (EFI_ERROR(status)) 914 continue; 915 efifb_from_gop(&efifb, gop->Mode, info); 916 print_efifb(mode, &efifb, 0); 917 if (pager_output("\n")) 918 break; 919 } 920 pager_close(); 921 } 922 return (CMD_OK); 923 924 usage: 925 snprintf(command_errbuf, sizeof(command_errbuf), 926 "usage: %s [list | get | set <mode> | off]", argv[0]); 927 return (CMD_ERROR); 928 } 929 930 COMMAND_SET(uga, "uga", "universal graphics adapter", command_uga); 931 932 static int 933 command_uga(int argc, char *argv[]) 934 { 935 struct efi_fb efifb; 936 937 if (uga == NULL) { 938 snprintf(command_errbuf, sizeof(command_errbuf), 939 "%s: UGA Protocol not present", argv[0]); 940 return (CMD_ERROR); 941 } 942 943 if (argc != 1) 944 goto usage; 945 946 if (efifb_from_uga(&efifb) != CMD_OK) { 947 snprintf(command_errbuf, sizeof(command_errbuf), 948 "%s: Unable to get UGA information", argv[0]); 949 return (CMD_ERROR); 950 } 951 952 print_efifb(-1, &efifb, 1); 953 printf("\n"); 954 return (CMD_OK); 955 956 usage: 957 snprintf(command_errbuf, sizeof(command_errbuf), "usage: %s", argv[0]); 958 return (CMD_ERROR); 959 } 960