diff options
author | 2015-08-28 09:58:54 +0800 | |
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committer | 2015-09-01 12:44:00 +0800 | |
commit | e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch) | |
tree | 66b09f592c55df2878107a468a91d21506104d3f /qemu/roms/ipxe/src/drivers/net/efi/snp.c | |
parent | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff) |
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/roms/ipxe/src/drivers/net/efi/snp.c')
-rw-r--r-- | qemu/roms/ipxe/src/drivers/net/efi/snp.c | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/qemu/roms/ipxe/src/drivers/net/efi/snp.c b/qemu/roms/ipxe/src/drivers/net/efi/snp.c new file mode 100644 index 000000000..2b5fc8618 --- /dev/null +++ b/qemu/roms/ipxe/src/drivers/net/efi/snp.c @@ -0,0 +1,113 @@ +/* + * 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/efi_driver.h> +#include <ipxe/efi/efi_snp.h> +#include "snpnet.h" +#include "nii.h" + +/** @file + * + * SNP driver + * + */ + +/** + * 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; +} + +/** + * Check to see if driver supports a device + * + * @v device EFI device handle + * @ret rc Return status code + */ +static int nii_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, "NII %p %s is provided by this binary\n", + device, efi_handle_name ( device ) ); + return -ENOTTY; + } + + /* Test for presence of NII protocol */ + if ( ( efirc = bs->OpenProtocol ( device, + &efi_nii31_protocol_guid, + NULL, efi_image_handle, device, + EFI_OPEN_PROTOCOL_TEST_PROTOCOL))!=0){ + DBGCP ( device, "NII %p %s is not an NII device\n", + device, efi_handle_name ( device ) ); + return -EEFI ( efirc ); + } + DBGC ( device, "NII %p %s is an NII 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, +}; + +/** EFI NII driver */ +struct efi_driver nii_driver __efi_driver ( EFI_DRIVER_NORMAL ) = { + .name = "NII", + .supported = nii_supported, + .start = nii_start, + .stop = nii_stop, +}; |