uefi: Add ConfigKeywordHandler and HiiConfigAccess protocol stubs

Author: seijikun

uefi/CHANGELOG.md

@@ -4,6 +4,8 @@
 - Added `ConfigTableEntry::MEMORY_ATTRIBUTES_GUID` and `ConfigTableEntry::IMAGE_SECURITY_DATABASE_GUID`.
 - Added `proto::usb::io::UsbIo`.
 - Added `proto::pci::PciRootBridgeIo`.
+- Added `proto::hii::config::ConfigKeywordHandler`.
+- Added `proto::hii::config::HiiConfigAccess`.
 
 ## Changed
 - **Breaking:** `boot::stall` now take `core::time::Duration` instead of `usize`.

uefi/src/proto/hii/config.rs

@@ -0,0 +1,30 @@
+// SPDX-License-Identifier: MIT OR Apache-2.0
+
+//! HII Configuration protocols.
+
+use uefi_macros::unsafe_protocol;
+use uefi_raw::protocol::hii::config::{ConfigKeywordHandlerProtocol, HiiConfigAccessProtocol};
+
+/// The HII Keyword Handler Protocol.
+///
+/// # UEFI Spec Description
+///
+/// This protocol provides the mechanism to set and get the values associated
+/// with a keyword exposed through a x-UEFI- prefixed configuration language namespace.
+#[derive(Debug)]
+#[repr(transparent)]
+#[unsafe_protocol(ConfigKeywordHandlerProtocol::GUID)]
+pub struct ConfigKeywordHandler(ConfigKeywordHandlerProtocol);
+
+/// The HII Configuration Access Protocol.
+///
+/// # UEFI Spec Description
+///
+/// This protocol is responsible for facilitating access to configuration data from HII.
+/// It is typically invoked by the HII Configuration Routing Protocol for handling
+/// configuration requests. Forms browsers also interact with this protocol through
+/// the `Callback()` function.
+#[derive(Debug)]
+#[repr(transparent)]
+#[unsafe_protocol(HiiConfigAccessProtocol::GUID)]
+pub struct HiiConfigAccess(HiiConfigAccessProtocol);

uefi/src/proto/hii/mod.rs

@@ -0,0 +1,5 @@
+// SPDX-License-Identifier: MIT OR Apache-2.0
+
+//! HII Protocols
+
+pub mod config;

uefi/src/proto/mod.rs

@@ -37,6 +37,7 @@ pub mod console;
 pub mod debug;
 pub mod device_path;
 pub mod driver;
+pub mod hii;
 pub mod loaded_image;
 pub mod media;
 pub mod misc;