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- /*
- * Copyright (C) 2013 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.
- */
-
- FILE_LICENCE ( GPL2_OR_LATER );
-
- /**
- * @file
- *
- * EFI debugging utilities
- *
- */
-
- #include <stdio.h>
- #include <ipxe/efi/efi.h>
- #include <ipxe/efi/efi_driver.h>
- #include <ipxe/efi/Protocol/DevicePath.h>
- #include <ipxe/efi/Protocol/DevicePathToText.h>
-
- /** Device path to text protocol */
- static EFI_DEVICE_PATH_TO_TEXT_PROTOCOL *efidpt;
- EFI_REQUIRE_PROTOCOL ( EFI_DEVICE_PATH_TO_TEXT_PROTOCOL, &efidpt );
-
- /**
- * Print list of protocol handlers attached to a handle
- *
- * @v handle EFI handle
- */
- void dbg_efi_protocols ( EFI_HANDLE handle ) {
- EFI_BOOT_SERVICES *bs = efi_systab->BootServices;
- EFI_GUID **protocols;
- UINTN count;
- unsigned int i;
- EFI_STATUS efirc;
-
- /* Retrieve list of protocols */
- if ( ( efirc = bs->ProtocolsPerHandle ( handle, &protocols,
- &count ) ) != 0 ) {
- printf ( "EFI could not retrieve protocols for %p: %s\n",
- handle, efi_strerror ( efirc ) );
- return;
- }
-
- /* Dump list of protocols */
- for ( i = 0 ; i < count ; i++ ) {
- printf ( "%s\n", uuid_ntoa ( ( union uuid * ) protocols[i] ) );
- }
-
- /* Free list */
- bs->FreePool ( protocols );
- }
-
- /**
- * Print device path
- *
- * @v path Device path
- */
- void dbg_efi_devpath ( EFI_DEVICE_PATH_PROTOCOL *path ) {
- EFI_BOOT_SERVICES *bs = efi_systab->BootServices;
- EFI_DEVICE_PATH_PROTOCOL *end;
- CHAR16 *text;
- size_t len;
-
- /* Convert path to a textual representation */
- text = efidpt->ConvertDevicePathToText ( path, TRUE, FALSE );
- if ( ! text ) {
- printf ( "<cannot convert>:\n" );
- end = efi_devpath_end ( path );
- len = ( ( ( void * ) end ) - ( ( void * ) path ) +
- sizeof ( *end ) );
- dbg_hex_dump_da ( 0, path, len );
- return;
- }
-
- /* Print path */
- printf ( "%ls", text );
-
- /* Free path */
- bs->FreePool ( text );
- }
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