| /* |
| * Copyright (C) 2014 Michael Brown <mbrown@fensystems.co.uk>. |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License as |
| * published by the Free Software Foundation; either version 2 of the |
| * License, or any later version. |
| * |
| * This program is distributed in the hope that it will be useful, but |
| * WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| * 02110-1301, USA. |
| * |
| * You can also choose to distribute this program under the terms of |
| * the Unmodified Binary Distribution Licence (as given in the file |
| * COPYING.UBDL), provided that you have satisfied its requirements. |
| */ |
| |
| FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); |
| |
| #include <ipxe/efi/efi.h> |
| #include <ipxe/efi/efi_autoboot.h> |
| #include <ipxe/efi/Protocol/SimpleNetwork.h> |
| #include <usr/autoboot.h> |
| |
| /** @file |
| * |
| * EFI autoboot device |
| * |
| */ |
| |
| /** |
| * Identify autoboot device |
| * |
| */ |
| void efi_set_autoboot ( void ) { |
| EFI_BOOT_SERVICES *bs = efi_systab->BootServices; |
| union { |
| EFI_SIMPLE_NETWORK_PROTOCOL *snp; |
| void *interface; |
| } snp; |
| EFI_SIMPLE_NETWORK_MODE *mode; |
| EFI_STATUS efirc; |
| |
| /* Look for an SNP instance on the image's device handle */ |
| if ( ( efirc = bs->OpenProtocol ( efi_loaded_image->DeviceHandle, |
| &efi_simple_network_protocol_guid, |
| &snp.interface, efi_image_handle, |
| NULL, |
| EFI_OPEN_PROTOCOL_GET_PROTOCOL ))!=0){ |
| DBGC ( efi_loaded_image, "EFI found no autoboot device\n" ); |
| return; |
| } |
| |
| /* Record autoboot device */ |
| mode = snp.snp->Mode; |
| set_autoboot_ll_addr ( &mode->CurrentAddress, mode->HwAddressSize ); |
| DBGC ( efi_loaded_image, "EFI found autoboot link-layer address:\n" ); |
| DBGC_HDA ( efi_loaded_image, 0, &mode->CurrentAddress, |
| mode->HwAddressSize ); |
| |
| /* Close protocol */ |
| bs->CloseProtocol ( efi_loaded_image->DeviceHandle, |
| &efi_simple_network_protocol_guid, |
| efi_image_handle, NULL ); |
| } |