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https://github.com/Atmosphere-NX/Atmosphere-libs.git
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62 lines
2.3 KiB
C++
62 lines
2.3 KiB
C++
/*
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* Copyright (c) Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stratosphere.hpp>
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#include "htclow_driver_memory_management.hpp"
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namespace ams::htclow::driver {
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namespace {
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constexpr inline size_t RequiredAlignment = std::max(os::ThreadStackAlignment, os::MemoryPageSize);
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using SocketConfigType = socket::SystemConfigDefault;
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/* TODO: If we ever use resolvers, increase this. */
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constexpr inline size_t SocketAllocatorSize = 4_KB;
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constexpr inline size_t SocketMemoryPoolSize = util::AlignUp(SocketConfigType::PerTcpSocketWorstCaseMemoryPoolSize + SocketConfigType::PerUdpSocketWorstCaseMemoryPoolSize, os::MemoryPageSize);
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constexpr inline size_t SocketRequiredSize = util::AlignUp(SocketMemoryPoolSize + SocketAllocatorSize, os::MemoryPageSize);
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constexpr inline size_t UsbRequiredSize = 2 * UsbDmaBufferSize + UsbIndicationThreadStackSize;
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static_assert(util::IsAligned(UsbDmaBufferSize, RequiredAlignment));
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constexpr inline size_t RequiredSize = std::max(SocketRequiredSize, UsbRequiredSize);
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static_assert(util::IsAligned(RequiredSize, os::MemoryPageSize));
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/* Declare the memory pool. */
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alignas(RequiredAlignment) constinit u8 g_driver_memory[RequiredSize];
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constexpr inline const socket::SystemConfigDefault SocketConfig(g_driver_memory, RequiredSize, SocketAllocatorSize, 2);
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}
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void *GetUsbReceiveBuffer() {
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return g_driver_memory;
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}
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void *GetUsbSendBuffer() {
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return g_driver_memory + UsbDmaBufferSize;
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}
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void *GetUsbIndicationThreadStack() {
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return g_driver_memory + 2 * UsbDmaBufferSize;
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}
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void InitializeSocketApiForSocketDriver() {
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R_ABORT_UNLESS(socket::Initialize(SocketConfig));
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}
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}
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