diff options
Diffstat (limited to 'src/interface/efi/efi_null.c')
| -rw-r--r-- | src/interface/efi/efi_null.c | 672 |
1 files changed, 672 insertions, 0 deletions
diff --git a/src/interface/efi/efi_null.c b/src/interface/efi/efi_null.c new file mode 100644 index 000000000..29ca5b9b6 --- /dev/null +++ b/src/interface/efi/efi_null.c @@ -0,0 +1,672 @@ +/* + * Copyright (C) 2020 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 (at your option) 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 <string.h> +#include <ipxe/efi/efi.h> +#include <ipxe/efi/efi_null.h> + +/** @file + * + * EFI null interfaces + * + */ + +/****************************************************************************** + * + * Simple Network Protocol + * + ****************************************************************************** + */ + +static EFI_STATUS EFIAPI +efi_null_snp_start ( EFI_SIMPLE_NETWORK_PROTOCOL *snp __unused ) { + return EFI_UNSUPPORTED; +} + +static EFI_STATUS EFIAPI +efi_null_snp_stop ( EFI_SIMPLE_NETWORK_PROTOCOL *snp __unused ) { + return EFI_UNSUPPORTED; +} + +static EFI_STATUS EFIAPI +efi_null_snp_initialize ( EFI_SIMPLE_NETWORK_PROTOCOL *snp __unused, + UINTN extra_rx_bufsize __unused, + UINTN extra_tx_bufsize __unused ) { + return EFI_UNSUPPORTED; +} + +static EFI_STATUS EFIAPI +efi_null_snp_reset ( EFI_SIMPLE_NETWORK_PROTOCOL *snp __unused, + BOOLEAN ext_verify __unused ) { + return EFI_UNSUPPORTED; +} + +static EFI_STATUS EFIAPI +efi_null_snp_shutdown ( EFI_SIMPLE_NETWORK_PROTOCOL *snp __unused ) { + return EFI_UNSUPPORTED; +} + +static EFI_STATUS EFIAPI +efi_null_snp_receive_filters ( EFI_SIMPLE_NETWORK_PROTOCOL *snp __unused, + UINT32 enable __unused, + UINT32 disable __unused, + BOOLEAN mcast_reset __unused, + UINTN mcast_count __unused, + EFI_MAC_ADDRESS *mcast __unused ) { + return EFI_UNSUPPORTED; +} + +static EFI_STATUS EFIAPI +efi_null_snp_station_address ( EFI_SIMPLE_NETWORK_PROTOCOL *snp __unused, + BOOLEAN reset __unused, + EFI_MAC_ADDRESS *new __unused ) { + return EFI_UNSUPPORTED; +} + +static EFI_STATUS EFIAPI +efi_null_snp_statistics ( EFI_SIMPLE_NETWORK_PROTOCOL *snp __unused, + BOOLEAN reset __unused, UINTN *stats_len __unused, + EFI_NETWORK_STATISTICS *stats __unused ) { + return EFI_UNSUPPORTED; +} + +static EFI_STATUS EFIAPI +efi_null_snp_mcast_ip_to_mac ( EFI_SIMPLE_NETWORK_PROTOCOL *snp __unused, + BOOLEAN ipv6 __unused, + EFI_IP_ADDRESS *ip __unused, + EFI_MAC_ADDRESS *mac __unused ) { + return EFI_UNSUPPORTED; +} + +static EFI_STATUS EFIAPI +efi_null_snp_nvdata ( EFI_SIMPLE_NETWORK_PROTOCOL *snp __unused, + BOOLEAN read __unused, UINTN offset __unused, + UINTN len __unused, VOID *data __unused ) { + return EFI_UNSUPPORTED; +} + +static EFI_STATUS EFIAPI +efi_null_snp_get_status ( EFI_SIMPLE_NETWORK_PROTOCOL *snp __unused, + UINT32 *interrupts __unused, VOID **txbuf __unused ) { + return EFI_UNSUPPORTED; +} + +static EFI_STATUS EFIAPI +efi_null_snp_transmit ( EFI_SIMPLE_NETWORK_PROTOCOL *snp __unused, + UINTN ll_header_len __unused, UINTN len __unused, + VOID *data __unused, EFI_MAC_ADDRESS *ll_src __unused, + EFI_MAC_ADDRESS *ll_dest __unused, + UINT16 *net_proto __unused ) { + return EFI_UNSUPPORTED; +} + +static EFI_STATUS EFIAPI +efi_null_snp_receive ( EFI_SIMPLE_NETWORK_PROTOCOL *snp __unused, + UINTN *ll_header_len __unused, UINTN *len __unused, + VOID *data __unused, EFI_MAC_ADDRESS *ll_src __unused, + EFI_MAC_ADDRESS *ll_dest __unused, + UINT16 *net_proto __unused ) { + return EFI_UNSUPPORTED; +} + +static EFI_SIMPLE_NETWORK_PROTOCOL efi_null_snp = { + .Revision = EFI_SIMPLE_NETWORK_PROTOCOL_REVISION, + .Start = efi_null_snp_start, + .Stop = efi_null_snp_stop, + .Initialize = efi_null_snp_initialize, + .Reset = efi_null_snp_reset, + .Shutdown = efi_null_snp_shutdown, + .ReceiveFilters = efi_null_snp_receive_filters, + .StationAddress = efi_null_snp_station_address, + .Statistics = efi_null_snp_statistics, + .MCastIpToMac = efi_null_snp_mcast_ip_to_mac, + .NvData = efi_null_snp_nvdata, + .GetStatus = efi_null_snp_get_status, + .Transmit = efi_null_snp_transmit, + .Receive = efi_null_snp_receive, +}; + +/** + * Nullify SNP interface + * + * @v snp SNP interface + */ +void efi_nullify_snp ( EFI_SIMPLE_NETWORK_PROTOCOL *snp ) { + + memcpy ( snp, &efi_null_snp, + offsetof ( typeof ( *snp ), WaitForPacket ) ); + snp->Mode->State = EfiSimpleNetworkStopped; +} + +/****************************************************************************** + * + * Network Interface Identification protocol + * + ****************************************************************************** + */ + +static EFIAPI VOID efi_null_undi_issue ( UINT64 cdb_phys ) { + PXE_CDB *cdb = ( ( void * ) ( intptr_t ) cdb_phys ); + + cdb->StatCode = PXE_STATCODE_UNSUPPORTED; + cdb->StatFlags = PXE_STATFLAGS_COMMAND_FAILED; +} + +static PXE_SW_UNDI efi_null_undi __attribute__ (( aligned ( 16 ) )) = { + .Signature = PXE_ROMID_SIGNATURE, + .Len = sizeof ( efi_null_undi ), + .Rev = PXE_ROMID_REV, + .MajorVer = PXE_ROMID_MAJORVER, + .MinorVer = PXE_ROMID_MINORVER, + .Implementation = PXE_ROMID_IMP_SW_VIRT_ADDR, +}; + +/** + * Nullify NII interface + * + * @v nii NII interface + */ +void efi_nullify_nii ( EFI_NETWORK_INTERFACE_IDENTIFIER_PROTOCOL *nii ) { + efi_null_undi.EntryPoint = ( ( intptr_t ) efi_null_undi_issue ); + nii->Id = ( ( intptr_t ) &efi_null_undi ); +} + +/****************************************************************************** + * + * Component name protocol + * + ****************************************************************************** + */ + +static EFI_STATUS EFIAPI +efi_null_get_driver_name ( EFI_COMPONENT_NAME2_PROTOCOL *name2 __unused, + CHAR8 *language __unused, + CHAR16 **driver_name __unused ) { + return EFI_UNSUPPORTED; +} + +static EFI_STATUS EFIAPI +efi_null_get_controller_name ( EFI_COMPONENT_NAME2_PROTOCOL *name2 __unused, + EFI_HANDLE device __unused, + EFI_HANDLE child __unused, + CHAR8 *language __unused, + CHAR16 **controller_name __unused ) { + return EFI_UNSUPPORTED; +} + +static EFI_COMPONENT_NAME2_PROTOCOL efi_null_name2 = { + .GetDriverName = efi_null_get_driver_name, + .GetControllerName = efi_null_get_controller_name, + .SupportedLanguages = "", +}; + +/** + * Nullify Component Name Protocol interface + * + * @v name2 Component name protocol + */ +void efi_nullify_name2 ( EFI_COMPONENT_NAME2_PROTOCOL *name2 ) { + + memcpy ( name2, &efi_null_name2, sizeof ( *name2 ) ); +} + +/****************************************************************************** + * + * Load file protocol + * + ****************************************************************************** + */ + +static EFI_STATUS EFIAPI +efi_null_load_file ( EFI_LOAD_FILE_PROTOCOL *load_file __unused, + EFI_DEVICE_PATH_PROTOCOL *path __unused, + BOOLEAN booting __unused, UINTN *len __unused, + VOID *data __unused ) { + return EFI_UNSUPPORTED; +} + +/** + * Nullify Load File Protocol interface + * + * @v load_file Load file protocol + */ +void efi_nullify_load_file ( EFI_LOAD_FILE_PROTOCOL *load_file ) { + load_file->LoadFile = efi_null_load_file; +} + +/****************************************************************************** + * + * HII configuration access protocol + * + ****************************************************************************** + */ + +static EFI_STATUS EFIAPI +efi_null_hii_extract ( const EFI_HII_CONFIG_ACCESS_PROTOCOL *hii __unused, + EFI_STRING request __unused, + EFI_STRING *progress __unused, + EFI_STRING *results __unused ) { + return EFI_UNSUPPORTED; +} + +static EFI_STATUS EFIAPI +efi_null_hii_route ( const EFI_HII_CONFIG_ACCESS_PROTOCOL *hii __unused, + EFI_STRING config __unused, + EFI_STRING *progress __unused ) { + return EFI_UNSUPPORTED; +} + +static EFI_STATUS EFIAPI +efi_null_hii_callback ( const EFI_HII_CONFIG_ACCESS_PROTOCOL *hii __unused, + EFI_BROWSER_ACTION action __unused, + EFI_QUESTION_ID question_id __unused, + UINT8 type __unused, EFI_IFR_TYPE_VALUE *value __unused, + EFI_BROWSER_ACTION_REQUEST *action_request __unused ) { + return EFI_UNSUPPORTED; +} + +static EFI_HII_CONFIG_ACCESS_PROTOCOL efi_null_hii = { + .ExtractConfig = efi_null_hii_extract, + .RouteConfig = efi_null_hii_route, + .Callback = efi_null_hii_callback, +}; + +/** + * Nullify HII configuration access protocol + * + * @v hii HII configuration access protocol + */ +void efi_nullify_hii ( EFI_HII_CONFIG_ACCESS_PROTOCOL *hii ) { + + memcpy ( hii, &efi_null_hii, sizeof ( *hii ) ); +} + +/****************************************************************************** + * + * Block I/O protocol + * + ****************************************************************************** + */ + +static EFI_STATUS EFIAPI +efi_null_block_reset ( EFI_BLOCK_IO_PROTOCOL *block __unused, + BOOLEAN verify __unused ) { + return EFI_UNSUPPORTED; +} + +static EFI_STATUS EFIAPI +efi_null_block_read ( EFI_BLOCK_IO_PROTOCOL *block __unused, + UINT32 media __unused, EFI_LBA lba __unused, + UINTN len __unused, VOID *data __unused ) { + return EFI_UNSUPPORTED; +} + +static EFI_STATUS EFIAPI +efi_null_block_write ( EFI_BLOCK_IO_PROTOCOL *block __unused, + UINT32 media __unused, EFI_LBA lba __unused, + UINTN len __unused, VOID *data __unused ) { + return EFI_UNSUPPORTED; +} + +static EFI_STATUS EFIAPI +efi_null_block_flush ( EFI_BLOCK_IO_PROTOCOL *block __unused ) { + return EFI_UNSUPPORTED; +} + +static EFI_BLOCK_IO_MEDIA efi_null_block_media; + +static EFI_BLOCK_IO_PROTOCOL efi_null_block = { + .Revision = EFI_BLOCK_IO_INTERFACE_REVISION, + .Media = &efi_null_block_media, + .Reset = efi_null_block_reset, + .ReadBlocks = efi_null_block_read, + .WriteBlocks = efi_null_block_write, + .FlushBlocks = efi_null_block_flush, +}; + +/** + * Nullify block I/O protocol + * + * @v block Block I/O protocol + */ +void efi_nullify_block ( EFI_BLOCK_IO_PROTOCOL *block ) { + + memcpy ( block, &efi_null_block, sizeof ( *block ) ); +} + +/****************************************************************************** + * + * PXE base code protocol + * + ****************************************************************************** + */ + +static EFI_STATUS EFIAPI +efi_null_pxe_start ( EFI_PXE_BASE_CODE_PROTOCOL *pxe __unused, + BOOLEAN use_ipv6 __unused ) { + return EFI_UNSUPPORTED; +} + +static EFI_STATUS EFIAPI +efi_null_pxe_stop ( EFI_PXE_BASE_CODE_PROTOCOL *pxe __unused ) { + return EFI_UNSUPPORTED; +} + +static EFI_STATUS EFIAPI +efi_null_pxe_dhcp ( EFI_PXE_BASE_CODE_PROTOCOL *pxe __unused, + BOOLEAN sort __unused ) { + return EFI_UNSUPPORTED; +} + +static EFI_STATUS EFIAPI +efi_null_pxe_discover ( EFI_PXE_BASE_CODE_PROTOCOL *pxe __unused, + UINT16 type __unused, UINT16 *layer __unused, + BOOLEAN bis __unused, + EFI_PXE_BASE_CODE_DISCOVER_INFO *info __unused ) { + return EFI_UNSUPPORTED; +} + +static EFI_STATUS EFIAPI +efi_null_pxe_mtftp ( EFI_PXE_BASE_CODE_PROTOCOL *pxe __unused, + EFI_PXE_BASE_CODE_TFTP_OPCODE opcode __unused, + VOID *data __unused, BOOLEAN overwrite __unused, + UINT64 *len __unused, UINTN *blksize __unused, + EFI_IP_ADDRESS *ip __unused, UINT8 *filename __unused, + EFI_PXE_BASE_CODE_MTFTP_INFO *info __unused, + BOOLEAN callback __unused ) { + return EFI_UNSUPPORTED; +} + +static EFI_STATUS EFIAPI +efi_null_pxe_udp_write ( EFI_PXE_BASE_CODE_PROTOCOL *pxe __unused, + UINT16 flags __unused, + EFI_IP_ADDRESS *dest_ip __unused, + EFI_PXE_BASE_CODE_UDP_PORT *dest_port __unused, + EFI_IP_ADDRESS *gateway __unused, + EFI_IP_ADDRESS *src_ip __unused, + EFI_PXE_BASE_CODE_UDP_PORT *src_port __unused, + UINTN *hdr_len __unused, VOID *hdr __unused, + UINTN *len __unused, VOID *data __unused ) { + return EFI_UNSUPPORTED; +} + +static EFI_STATUS EFIAPI +efi_null_pxe_udp_read ( EFI_PXE_BASE_CODE_PROTOCOL *pxe __unused, + UINT16 flags __unused, + EFI_IP_ADDRESS *dest_ip __unused, + EFI_PXE_BASE_CODE_UDP_PORT *dest_port __unused, + EFI_IP_ADDRESS *src_ip __unused, + EFI_PXE_BASE_CODE_UDP_PORT *src_port __unused, + UINTN *hdr_len __unused, VOID *hdr __unused, + UINTN *len __unused, VOID *data __unused ) { + return EFI_UNSUPPORTED; +} + +static EFI_STATUS EFIAPI +efi_null_pxe_set_ip_filter ( EFI_PXE_BASE_CODE_PROTOCOL *pxe __unused, + EFI_PXE_BASE_CODE_IP_FILTER *filter __unused ) { + return EFI_UNSUPPORTED; +} + +static EFI_STATUS EFIAPI +efi_null_pxe_arp ( EFI_PXE_BASE_CODE_PROTOCOL *pxe __unused, + EFI_IP_ADDRESS *ip __unused, + EFI_MAC_ADDRESS *mac __unused ) { + return EFI_UNSUPPORTED; +} + +static EFI_STATUS EFIAPI +efi_null_pxe_set_parameters ( EFI_PXE_BASE_CODE_PROTOCOL *pxe __unused, + BOOLEAN *autoarp __unused, + BOOLEAN *sendguid __unused, UINT8 *ttl __unused, + UINT8 *tos __unused, + BOOLEAN *callback __unused ) { + return EFI_UNSUPPORTED; +} + +static EFI_STATUS EFIAPI +efi_null_pxe_set_station_ip ( EFI_PXE_BASE_CODE_PROTOCOL *pxe __unused, + EFI_IP_ADDRESS *ip __unused, + EFI_IP_ADDRESS *netmask __unused ) { + return EFI_UNSUPPORTED; +} + +static EFI_STATUS EFIAPI +efi_null_pxe_set_packets ( EFI_PXE_BASE_CODE_PROTOCOL *pxe __unused, + BOOLEAN *dhcpdisc_ok __unused, + BOOLEAN *dhcpack_ok __unused, + BOOLEAN *proxyoffer_ok __unused, + BOOLEAN *pxebsdisc_ok __unused, + BOOLEAN *pxebsack_ok __unused, + BOOLEAN *pxebsbis_ok __unused, + EFI_PXE_BASE_CODE_PACKET *dhcpdisc __unused, + EFI_PXE_BASE_CODE_PACKET *dhcpack __unused, + EFI_PXE_BASE_CODE_PACKET *proxyoffer __unused, + EFI_PXE_BASE_CODE_PACKET *pxebsdisc __unused, + EFI_PXE_BASE_CODE_PACKET *pxebsack __unused, + EFI_PXE_BASE_CODE_PACKET *pxebsbis __unused ) { + return EFI_UNSUPPORTED; +} + +static EFI_PXE_BASE_CODE_PROTOCOL efi_null_pxe = { + .Revision = EFI_PXE_BASE_CODE_PROTOCOL_REVISION, + .Start = efi_null_pxe_start, + .Stop = efi_null_pxe_stop, + .Dhcp = efi_null_pxe_dhcp, + .Discover = efi_null_pxe_discover, + .Mtftp = efi_null_pxe_mtftp, + .UdpWrite = efi_null_pxe_udp_write, + .UdpRead = efi_null_pxe_udp_read, + .SetIpFilter = efi_null_pxe_set_ip_filter, + .Arp = efi_null_pxe_arp, + .SetParameters = efi_null_pxe_set_parameters, + .SetStationIp = efi_null_pxe_set_station_ip, + .SetPackets = efi_null_pxe_set_packets, +}; + +/** + * Nullify PXE base code protocol + * + * @v pxe PXE base code protocol + */ +void efi_nullify_pxe ( EFI_PXE_BASE_CODE_PROTOCOL *pxe ) { + + memcpy ( pxe, &efi_null_pxe, offsetof ( typeof ( *pxe ), Mode ) ); + pxe->Mode->Started = FALSE; +} + +/****************************************************************************** + * + * Apple Net Boot protocol + * + ****************************************************************************** + */ + +static EFI_STATUS EFIAPI +efi_null_apple_dhcp ( EFI_APPLE_NET_BOOT_PROTOCOL *apple __unused, + UINTN *len __unused, VOID *data __unused ) { + return EFI_UNSUPPORTED; +} + +static EFI_STATUS EFIAPI +efi_null_apple_bsdp ( EFI_APPLE_NET_BOOT_PROTOCOL *apple __unused, + UINTN *len __unused, VOID *data __unused ) { + return EFI_UNSUPPORTED; +} + +static EFI_APPLE_NET_BOOT_PROTOCOL efi_null_apple = { + .GetDhcpResponse = efi_null_apple_dhcp, + .GetBsdpResponse = efi_null_apple_bsdp, +}; + +/** + * Nullify Apple Net Boot protocol + * + * @v apple Apple Net Boot protocol + */ +void efi_nullify_apple ( EFI_APPLE_NET_BOOT_PROTOCOL *apple ) { + + memcpy ( apple, &efi_null_apple, sizeof ( *apple ) ); +} + +/****************************************************************************** + * + * USB I/O Protocol + * + ****************************************************************************** + */ + +static EFI_STATUS EFIAPI +efi_null_usb_control_transfer ( EFI_USB_IO_PROTOCOL *usbio __unused, + EFI_USB_DEVICE_REQUEST *packet __unused, + EFI_USB_DATA_DIRECTION direction __unused, + UINT32 timeout __unused, VOID *data __unused, + UINTN len __unused, UINT32 *status __unused ) { + return EFI_UNSUPPORTED; +} + +static EFI_STATUS EFIAPI +efi_null_usb_bulk_transfer ( EFI_USB_IO_PROTOCOL *usbio __unused, + UINT8 endpoint __unused, VOID *data __unused, + UINTN *len __unused, UINTN timeout __unused, + UINT32 *status __unused ) { + return EFI_UNSUPPORTED; +} + +static EFI_STATUS EFIAPI +efi_null_usb_sync_interrupt_transfer ( EFI_USB_IO_PROTOCOL *usbio __unused, + UINT8 endpoint __unused, + VOID *data __unused, + UINTN *len __unused, + UINTN timeout __unused, + UINT32 *status __unused ) { + return EFI_UNSUPPORTED; +} + +static EFI_STATUS EFIAPI +efi_null_usb_async_interrupt_transfer ( EFI_USB_IO_PROTOCOL *usbio __unused, + UINT8 endpoint __unused, + BOOLEAN start __unused, + UINTN interval __unused, + UINTN len __unused, + EFI_ASYNC_USB_TRANSFER_CALLBACK + callback __unused, + VOID *context __unused ) { + return EFI_UNSUPPORTED; +} + +static EFI_STATUS EFIAPI +efi_null_usb_isochronous_transfer ( EFI_USB_IO_PROTOCOL *usbio __unused, + UINT8 endpoint __unused, + VOID *data __unused, UINTN len __unused, + UINT32 *status __unused ) { + return EFI_UNSUPPORTED; +} + +static EFI_STATUS EFIAPI +efi_null_usb_async_isochronous_transfer ( EFI_USB_IO_PROTOCOL *usbio __unused, + UINT8 endpoint __unused, + VOID *data __unused, + UINTN len __unused, + EFI_ASYNC_USB_TRANSFER_CALLBACK + callback __unused, + VOID *context __unused ) { + return EFI_UNSUPPORTED; +} + +static EFI_STATUS EFIAPI +efi_null_usb_get_device_descriptor ( EFI_USB_IO_PROTOCOL *usbio __unused, + EFI_USB_DEVICE_DESCRIPTOR + *efidesc __unused ) { + return EFI_UNSUPPORTED; +} + +static EFI_STATUS EFIAPI +efi_null_usb_get_config_descriptor ( EFI_USB_IO_PROTOCOL *usbio __unused, + EFI_USB_CONFIG_DESCRIPTOR + *efidesc __unused ) { + return EFI_UNSUPPORTED; +} + +static EFI_STATUS EFIAPI +efi_null_usb_get_interface_descriptor ( EFI_USB_IO_PROTOCOL *usbio __unused, + EFI_USB_INTERFACE_DESCRIPTOR + *efidesc __unused ) { + return EFI_UNSUPPORTED; +} + +static EFI_STATUS EFIAPI +efi_null_usb_get_endpoint_descriptor ( EFI_USB_IO_PROTOCOL *usbio __unused, + UINT8 index __unused, + EFI_USB_ENDPOINT_DESCRIPTOR + *efidesc __unused ) { + return EFI_UNSUPPORTED; +} + +static EFI_STATUS EFIAPI +efi_null_usb_get_string_descriptor ( EFI_USB_IO_PROTOCOL *usbio __unused, + UINT16 language __unused, + UINT8 index __unused, + CHAR16 **string __unused ) { + return EFI_UNSUPPORTED; +} + +static EFI_STATUS EFIAPI +efi_null_usb_get_supported_languages ( EFI_USB_IO_PROTOCOL *usbio __unused, + UINT16 **languages __unused, + UINT16 *len __unused ) { + return EFI_UNSUPPORTED; +} + +static EFI_STATUS EFIAPI +efi_null_usb_port_reset ( EFI_USB_IO_PROTOCOL *usbio __unused ) { + return EFI_UNSUPPORTED; +} + +static EFI_USB_IO_PROTOCOL efi_null_usbio = { + .UsbControlTransfer = efi_null_usb_control_transfer, + .UsbBulkTransfer = efi_null_usb_bulk_transfer, + .UsbAsyncInterruptTransfer = efi_null_usb_async_interrupt_transfer, + .UsbSyncInterruptTransfer = efi_null_usb_sync_interrupt_transfer, + .UsbIsochronousTransfer = efi_null_usb_isochronous_transfer, + .UsbAsyncIsochronousTransfer = efi_null_usb_async_isochronous_transfer, + .UsbGetDeviceDescriptor = efi_null_usb_get_device_descriptor, + .UsbGetConfigDescriptor = efi_null_usb_get_config_descriptor, + .UsbGetInterfaceDescriptor = efi_null_usb_get_interface_descriptor, + .UsbGetEndpointDescriptor = efi_null_usb_get_endpoint_descriptor, + .UsbGetStringDescriptor = efi_null_usb_get_string_descriptor, + .UsbGetSupportedLanguages = efi_null_usb_get_supported_languages, + .UsbPortReset = efi_null_usb_port_reset, +}; + +/** + * Nullify USB I/O protocol + * + * @v usbio USB I/O protocol + */ +void efi_nullify_usbio ( EFI_USB_IO_PROTOCOL *usbio ) { + + memcpy ( usbio, &efi_null_usbio, sizeof ( *usbio ) ); +} |