diff options
| -rw-r--r-- | sys/boot/efi/boot1/boot1.c | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/sys/boot/efi/boot1/boot1.c b/sys/boot/efi/boot1/boot1.c index 1e3821b..cdc7fab 100644 --- a/sys/boot/efi/boot1/boot1.c +++ b/sys/boot/efi/boot1/boot1.c @@ -108,11 +108,12 @@ EFI_STATUS efi_main(EFI_HANDLE Ximage, EFI_SYSTEM_TABLE* Xsystab) { EFI_HANDLE handles[128]; EFI_BLOCK_IO *blkio; - UINTN i, nparts = sizeof(handles); + UINTN i, nparts = sizeof(handles), cols, rows, max_dim, best_mode; EFI_STATUS status; EFI_DEVICE_PATH *devpath; EFI_BOOT_SERVICES *BS; EFI_CONSOLE_CONTROL_PROTOCOL *ConsoleControl = NULL; + SIMPLE_TEXT_OUTPUT_INTERFACE *conout = NULL; char *path = _PATH_LOADER; systab = Xsystab; @@ -124,6 +125,26 @@ EFI_STATUS efi_main(EFI_HANDLE Ximage, EFI_SYSTEM_TABLE* Xsystab) if (status == EFI_SUCCESS) (void)ConsoleControl->SetMode(ConsoleControl, EfiConsoleControlScreenText); + /* + * Reset the console and find the best text mode. + */ + conout = systab->ConOut; + conout->Reset(conout, TRUE); + max_dim = best_mode = 0; + for (i = 0; ; i++) { + status = conout->QueryMode(conout, i, + &cols, &rows); + if (EFI_ERROR(status)) + break; + if (cols * rows > max_dim) { + max_dim = cols * rows; + best_mode = i; + } + } + if (max_dim > 0) + conout->SetMode(conout, best_mode); + conout->EnableCursor(conout, TRUE); + conout->ClearScreen(conout); printf(" \n>> FreeBSD EFI boot block\n"); printf(" Loader path: %s\n", path); |
