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- /*
- * 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.
- */
-
- FILE_LICENCE ( GPL2_OR_LATER );
-
- #include <errno.h>
- #include <ipxe/efi/efi.h>
- #include <ipxe/efi/Protocol/SimpleNetwork.h>
- #include <ipxe/efi/efi_driver.h>
- #include <ipxe/efi/efi_snp.h>
- #include "snpnet.h"
-
- /** @file
- *
- * SNP driver
- *
- */
-
- /** EFI simple network protocol GUID */
- static EFI_GUID efi_simple_network_protocol_guid
- = EFI_SIMPLE_NETWORK_PROTOCOL_GUID;
-
- /**
- * Check to see if driver supports a device
- *
- * @v device EFI device handle
- * @ret rc Return status code
- */
- static int snp_supported ( EFI_HANDLE device ) {
- EFI_BOOT_SERVICES *bs = efi_systab->BootServices;
- EFI_STATUS efirc;
-
- /* Check that this is not a device we are providing ourselves */
- if ( find_snpdev ( device ) != NULL ) {
- DBGCP ( device, "SNP %p %s is provided by this binary\n",
- device, efi_handle_name ( device ) );
- return -ENOTTY;
- }
-
- /* Test for presence of simple network protocol */
- if ( ( efirc = bs->OpenProtocol ( device,
- &efi_simple_network_protocol_guid,
- NULL, efi_image_handle, device,
- EFI_OPEN_PROTOCOL_TEST_PROTOCOL))!=0){
- DBGCP ( device, "SNP %p %s is not an SNP device\n",
- device, efi_handle_name ( device ) );
- return -EEFI ( efirc );
- }
- DBGC ( device, "SNP %p %s is an SNP device\n",
- device, efi_handle_name ( device ) );
-
- return 0;
- }
-
- /** EFI SNP driver */
- struct efi_driver snp_driver __efi_driver ( EFI_DRIVER_NORMAL ) = {
- .name = "SNP",
- .supported = snp_supported,
- .start = snpnet_start,
- .stop = snpnet_stop,
- };
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