mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-05 19:10:13 +00:00
f739fcd831
As part of the main conversion a few files were missed. These files had
additional whitespace after the '*' and before the SPDX tag and my
previous regex was too strict. This time I did a grep for all SPDX tags
and then filtered out anything that matched the correct styles.
Fixes: 83d290c56f
("SPDX: Convert all of our single license tags to Linux Kernel style")
Reported-by: Heinrich Schuchardt <xypron.debian@gmx.de>
Signed-off-by: Tom Rini <trini@konsulko.com>
199 lines
5.7 KiB
C
199 lines
5.7 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* EFI device path interface
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*
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* Copyright (c) 2017 Leif Lindholm
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*/
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#include <common.h>
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#include <efi_loader.h>
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const efi_guid_t efi_guid_device_path_utilities_protocol =
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EFI_DEVICE_PATH_UTILITIES_PROTOCOL_GUID;
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/*
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* Get size of a device path.
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*
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* This function implements the GetDevicePathSize service of the device path
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* utilities protocol. The device path length includes the end of path tag
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* which may be an instance end.
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*
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* See the Unified Extensible Firmware Interface (UEFI) specification
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* for details.
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*
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* @device_path device path
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* @return size in bytes
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*/
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static efi_uintn_t EFIAPI get_device_path_size(
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const struct efi_device_path *device_path)
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{
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efi_uintn_t sz = 0;
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EFI_ENTRY("%pD", device_path);
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/* size includes the END node: */
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if (device_path)
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sz = efi_dp_size(device_path) + sizeof(struct efi_device_path);
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return EFI_EXIT(sz);
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}
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/*
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* Duplicate a device path.
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*
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* This function implements the DuplicateDevicePath service of the device path
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* utilities protocol.
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*
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* The UEFI spec does not indicate what happens to the end tag. We follow the
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* EDK2 logic: In case the device path ends with an end of instance tag, the
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* copy will also end with an end of instance tag.
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*
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* See the Unified Extensible Firmware Interface (UEFI) specification
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* for details.
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*
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* @device_path device path
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* @return copy of the device path
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*/
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static struct efi_device_path * EFIAPI duplicate_device_path(
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const struct efi_device_path *device_path)
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{
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EFI_ENTRY("%pD", device_path);
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return EFI_EXIT(efi_dp_dup(device_path));
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}
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/*
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* Append device path.
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*
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* This function implements the AppendDevicePath service of the device path
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* utilities protocol.
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*
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* See the Unified Extensible Firmware Interface (UEFI) specification
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* for details.
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*
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* @src1 1st device path
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* @src2 2nd device path
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* @return concatenated device path
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*/
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static struct efi_device_path * EFIAPI append_device_path(
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const struct efi_device_path *src1,
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const struct efi_device_path *src2)
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{
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EFI_ENTRY("%pD, %pD", src1, src2);
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return EFI_EXIT(efi_dp_append(src1, src2));
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}
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/*
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* Append device path node.
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*
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* This function implements the AppendDeviceNode service of the device path
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* utilities protocol.
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*
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* See the Unified Extensible Firmware Interface (UEFI) specification
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* for details.
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*
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* @device_path device path
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* @device_node device node
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* @return concatenated device path
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*/
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static struct efi_device_path * EFIAPI append_device_node(
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const struct efi_device_path *device_path,
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const struct efi_device_path *device_node)
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{
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EFI_ENTRY("%pD, %p", device_path, device_node);
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return EFI_EXIT(efi_dp_append_node(device_path, device_node));
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}
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/*
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* Append device path instance.
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*
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* This function implements the AppendDevicePathInstance service of the device
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* path utilities protocol.
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*
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* See the Unified Extensible Firmware Interface (UEFI) specification
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* for details.
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*
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* @device_path 1st device path
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* @device_path_instance 2nd device path
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* @return concatenated device path
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*/
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static struct efi_device_path * EFIAPI append_device_path_instance(
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const struct efi_device_path *device_path,
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const struct efi_device_path *device_path_instance)
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{
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EFI_ENTRY("%pD, %pD", device_path, device_path_instance);
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return EFI_EXIT(efi_dp_append_instance(device_path,
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device_path_instance));
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}
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/*
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* Get next device path instance.
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*
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* This function implements the GetNextDevicePathInstance service of the device
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* path utilities protocol.
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*
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* See the Unified Extensible Firmware Interface (UEFI) specification
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* for details.
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*
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* @device_path_instance next device path instance
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* @device_path_instance_size size of the device path instance
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* @return concatenated device path
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*/
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static struct efi_device_path * EFIAPI get_next_device_path_instance(
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struct efi_device_path **device_path_instance,
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efi_uintn_t *device_path_instance_size)
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{
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EFI_ENTRY("%pD, %p", device_path_instance, device_path_instance_size);
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return EFI_EXIT(efi_dp_get_next_instance(device_path_instance,
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device_path_instance_size));
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}
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/*
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* Check if a device path contains more than one instance.
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*
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* This function implements the AppendDeviceNode service of the device path
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* utilities protocol.
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*
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* See the Unified Extensible Firmware Interface (UEFI) specification
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* for details.
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*
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* @device_path device path
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* @device_node device node
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* @return concatenated device path
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*/
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static bool EFIAPI is_device_path_multi_instance(
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const struct efi_device_path *device_path)
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{
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EFI_ENTRY("%pD", device_path);
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return EFI_EXIT(efi_dp_is_multi_instance(device_path));
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}
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/*
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* Create device node.
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*
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* This function implements the CreateDeviceNode service of the device path
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* utilities protocol.
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*
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* See the Unified Extensible Firmware Interface (UEFI) specification
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* for details.
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*
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* @node_type node type
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* @node_sub_type node sub type
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* @node_length node length
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* @return device path node
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*/
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static struct efi_device_path * EFIAPI create_device_node(
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uint8_t node_type, uint8_t node_sub_type, uint16_t node_length)
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{
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EFI_ENTRY("%u, %u, %u", node_type, node_sub_type, node_length);
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return EFI_EXIT(efi_dp_create_device_node(node_type, node_sub_type,
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node_length));
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}
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const struct efi_device_path_utilities_protocol efi_device_path_utilities = {
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.get_device_path_size = get_device_path_size,
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.duplicate_device_path = duplicate_device_path,
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.append_device_path = append_device_path,
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.append_device_node = append_device_node,
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.append_device_path_instance = append_device_path_instance,
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.get_next_device_path_instance = get_next_device_path_instance,
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.is_device_path_multi_instance = is_device_path_multi_instance,
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.create_device_node = create_device_node,
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};
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