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Atmosphere/libraries/libvapours/include/vapours/util/util_alignment.hpp
SciresM 166318ba77
sdmmc: implement driver suitable for fs + bootloader
* sdmmc: begin skeletoning sdmmc driver

* sdmmc: add most of SdHostStandardController

* sdmmc: implement most of SdmmcController

* sdmmc: Sdmmc2Controller

* sdmmc: skeleton implementation of Sdmmc1Controller

* sdmmc: complete abstract logic for Sdmmc1 power controller

* sdmmc: implement gpio handling for sdmmc1-register-control

* sdmmc: implement pinmux handling for sdmmc1-register-control

* sdmmc: fix building for arm32 and in stratosphere context

* sdmmc: implement voltage enable/set for sdmmc1-register-control

* util: move T(V)SNPrintf from kernel to util

* sdmmc: implement BaseDeviceAccessor

* sdmmc: implement MmcDeviceAccessor

* sdmmc: implement clock reset controller for register api

* sdmmc: fix bug in WaitWhileCommandInhibit, add mmc accessors

* exo: add sdmmc test program

* sdmmc: fix speed mode extension, add CheckMmcConnection for debug

* sdmmc: add DeviceDetector, gpio: implement client api

* gpio: modernize client api instead of doing it the lazy way

* sdmmc: SdCardDeviceAccessor impl

* sdmmc: update test program to read first two sectors of sd card

* sdmmc: fix vref sel

* sdmmc: finish outward-facing api (untested)

* ams: changes for libvapours including tegra register defs

* sdmmc: remove hwinit
2020-10-30 11:54:30 -07:00

81 lines
3 KiB
C++

/*
* Copyright (c) 2018-2020 Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope 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, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <vapours/common.hpp>
#include <vapours/assert.hpp>
#include <vapours/util/util_bitutil.hpp>
namespace ams::util {
/* Utilities for alignment to power of two. */
template<typename T>
constexpr ALWAYS_INLINE T AlignUp(T value, size_t alignment) {
using U = typename std::make_unsigned<T>::type;
const U invmask = static_cast<U>(alignment - 1);
return static_cast<T>((value + invmask) & ~invmask);
}
template<typename T>
constexpr ALWAYS_INLINE T AlignDown(T value, size_t alignment) {
using U = typename std::make_unsigned<T>::type;
const U invmask = static_cast<U>(alignment - 1);
return static_cast<T>(value & ~invmask);
}
template<typename T>
constexpr ALWAYS_INLINE bool IsAligned(T value, size_t alignment) {
using U = typename std::make_unsigned<T>::type;
const U invmask = static_cast<U>(alignment - 1);
return (value & invmask) == 0;
}
template<>
constexpr ALWAYS_INLINE void *AlignUp<void *>(void *value, size_t alignment) {
return reinterpret_cast<void *>(AlignUp(reinterpret_cast<uintptr_t>(value), alignment));
}
template<>
constexpr ALWAYS_INLINE const void *AlignUp<const void *>(const void *value, size_t alignment) {
return reinterpret_cast<const void *>(AlignUp(reinterpret_cast<uintptr_t>(value), alignment));
}
template<>
constexpr ALWAYS_INLINE void *AlignDown<void *>(void *value, size_t alignment) {
return reinterpret_cast<void *>(AlignDown(reinterpret_cast<uintptr_t>(value), alignment));
}
template<>
constexpr ALWAYS_INLINE const void *AlignDown<const void *>(const void *value, size_t alignment) {
return reinterpret_cast<void *>(AlignDown(reinterpret_cast<uintptr_t>(value), alignment));
}
template<>
constexpr ALWAYS_INLINE bool IsAligned<void *>(void *value, size_t alignment) {
return IsAligned(reinterpret_cast<uintptr_t>(value), alignment);
}
template<>
constexpr ALWAYS_INLINE bool IsAligned<const void *>(const void *value, size_t alignment) {
return IsAligned(reinterpret_cast<uintptr_t>(value), alignment);
}
template<typename T, typename U> requires std::integral<T> && std::integral<U>
constexpr ALWAYS_INLINE T DivideUp(T x, U y) {
return (x + (y - 1)) / y;
}
}