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Atmosphere/libraries/libvapours/include/vapours/svc/svc_version.hpp
2020-12-28 17:33:45 -08:00

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/*
* 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/svc/svc_common.hpp>
#include <vapours/svc/svc_select_hardware_constants.hpp>
#include <vapours/util/util_bitpack.hpp>
namespace ams::svc {
constexpr inline u32 ConvertToSvcMajorVersion(u32 sdk) { return sdk + 4; }
constexpr inline u32 ConvertToSdkMajorVersion(u32 svc) { return svc - 4; }
constexpr inline u32 ConvertToSvcMinorVersion(u32 sdk) { return sdk; }
constexpr inline u32 ConvertToSdkMinorVersion(u32 svc) { return svc; }
struct KernelVersion {
using MinorVersion = util::BitPack32::Field<0, 4>;
using MajorVersion = util::BitPack32::Field<MinorVersion::Next, 13>;
};
constexpr inline u32 EncodeKernelVersion(u32 major, u32 minor) {
util::BitPack32 pack = {};
pack.Set<KernelVersion::MinorVersion>(minor);
pack.Set<KernelVersion::MajorVersion>(major);
return pack.value;
}
constexpr inline u32 GetKernelMajorVersion(u32 encoded) {
const util::BitPack32 pack = { encoded };
return pack.Get<KernelVersion::MajorVersion>();
}
constexpr inline u32 GetKernelMinorVersion(u32 encoded) {
const util::BitPack32 pack = { encoded };
return pack.Get<KernelVersion::MinorVersion>();
}
/* Nintendo doesn't support programs targeting SVC versions < 3.0. */
constexpr inline u32 RequiredKernelMajorVersion = 3;
constexpr inline u32 RequiredKernelMinorVersion = 0;
constexpr inline u32 RequiredKernelVersion = EncodeKernelVersion(RequiredKernelMajorVersion, RequiredKernelMinorVersion);
/* This is the highest SVC version supported by Atmosphere, to be updated on new kernel releases. */
/* NOTE: Official kernel versions have SVC major = SDK major + 4, SVC minor = SDK minor. */
constexpr inline u32 SupportedKernelMajorVersion = ConvertToSvcMajorVersion(11);
constexpr inline u32 SupportedKernelMinorVersion = ConvertToSvcMinorVersion( 4);
constexpr inline u32 SupportedKernelVersion = EncodeKernelVersion(SupportedKernelMajorVersion, SupportedKernelMinorVersion);
}