Tianocore/edk2.git/MdeModulePkg/Include/Protocol/UfsHostControllerPlatform.h, branch master

MdeModulePkg: Replace include guards with #pragma once

2026-02-23T21:01:28+00:00

Replace traditional `#ifndef`/`#define`/`#endif` include guards with `#pragma` once. `#pragma once` is a widely supported preprocessor directive that prevents header files from being included multiple times. It is supported by all toolchains used to build edk2: GCC, Clang/LLVM, and MSVC. Compared to macro-based include guards, `#pragma once`: - Eliminates the risk of macro name collisions or copy/paste errors where two headers inadvertently use the same guard macro. - Eliminate inconsistency in the way include guard macros are named (e.g., some files use `__FILE_H__`, others use `FILE_H_`, etc.). - Reduces boilerplate (three lines replaced by one). - Avoids polluting the macro namespace with guard symbols. - Can improve build times as the preprocessor can skip re-opening the file entirely, rather than re-reading it to find the matching `#endif` ("multiple-include optimization"). - Note that some compilers may already optimize traditional include guards, by recognzining the idiomatic pattern. This change is made acknowledging that overall portability of the code will technically be reduced, as `#pragma once` is not part of the C/C++ standards. However, this is considered acceptable given: 1. edk2 already defines a subset of supported compilers in BaseTools/Conf/tools_def.template, all of which have supported `#pragma once` for over two decades. 2. There have been concerns raised to the project about inconsistent include guard naming and potential macro collisions. Approximate compiler support dates: - MSVC: Supported since Visual C++ 4.2 (1996) - GCC: Supported since 3.4 (2004) (http://gnu.ist.utl.pt/software/gcc/gcc-3.4/changes.html) - Clang (LLVM based): Since initial release in 2007 Signed-off-by: Michael Kubacki

MdeModulePkg: Support conditional UFS initialization

2025-08-08T01:06:56+00:00

Add SkipHceReenable and SkipLinkStartup flags to the EDKII_UFS_HC_PLATFORM_PROTOCOL to support using a UFS controller that has already been initialized. Signed-off-by: Bob Morgan

MdeModulePkg: Add bRefClkFreq card attribute programming support

2022-03-10T01:45:14+00:00

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3851 When the UFS card comes out of Manufacturer, bRefClkFreq attribute is set to 1h on the UFS card as per the Manufacturer Default Value specified by the spec JESD220*. However, depends on the UFS host system environment, it need to be set to the correct value. Reference Clock Frequency value 0h:19.2 MHz 1h: 26 MHz 2h: 38.4 MHz 3h: Obsolete Others: Reserved Cc: Wu Hao A Cc: Albecki Mateusz Cc: Liming Gao Cc: Zhiguang Liu Signed-off-by: Purna Chandra Rao Bandaru Reviewed-by: Hao A Wu

MdeModulePkg: Apply uncrustify changes

2021-12-07T17:24:28+00:00

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3737 Apply uncrustify changes to .c/.h files in the MdeModulePkg package Cc: Andrew Fish Cc: Leif Lindholm Cc: Michael D Kinney Signed-off-by: Michael Kubacki Reviewed-by: Liming Gao

MdeModulePkg: Add definition of the EDKII_UFS_HC_PLATFORM_PROTOCOL

2019-08-13T02:54:35+00:00

https://bugzilla.tianocore.org/show_bug.cgi?id=1343 EDKII_UFS_HC_PLATFORM_PROTOCOL will allow the platform to inject platform specific logic into standard UFS flows. Right now we support callbacks pre and post host controller enable and pre and post link startup. Provided callbacks allow the platform driver to inject UIC programming after HCE is set which is a standard initialization step covered by UFS specification as well as cover some additional use cases during other callbacks. For instance platform driver may switch to fast mode after link startup. We also allow the platform to override host controller capabilities and version which might be useful to manage silicon bugs or allow testing experimental features from new versions of the specification. Signed-off-by: Mateusz Albecki Reviewed-by: Hao A Wu