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https://github.com/Atmosphere-NX/Atmosphere-libs.git
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94 lines
2.9 KiB
C++
94 lines
2.9 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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namespace ams::hid {
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#if defined(ATMOSPHERE_OS_HORIZON)
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namespace {
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/* Global lock. */
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constinit os::SdkMutex g_hid_lock;
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constinit bool g_initialized_hid = false;
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/* Set of supported NpadIds (we want to read from any connected controllers). */
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constexpr const HidNpadIdType NpadIdTypes[] = {
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HidNpadIdType_No1,
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HidNpadIdType_No2,
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HidNpadIdType_No3,
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HidNpadIdType_No4,
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HidNpadIdType_No5,
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HidNpadIdType_No6,
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HidNpadIdType_No7,
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HidNpadIdType_No8,
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HidNpadIdType_Handheld,
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};
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constexpr const size_t NumNpadIdTypes = util::size(NpadIdTypes);
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/* Helper. */
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void InitializeHid() {
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R_ABORT_UNLESS(sm::Initialize());
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R_ABORT_UNLESS(hidInitialize());
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hidInitializeNpad();
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R_ABORT_UNLESS(hidSetSupportedNpadIdType(NpadIdTypes, NumNpadIdTypes));
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R_ABORT_UNLESS(hidSetSupportedNpadStyleSet(HidNpadStyleSet_NpadStandard | HidNpadStyleTag_NpadSystemExt));
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}
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Result EnsureHidInitialized() {
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if (!g_initialized_hid) {
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if (!serviceIsActive(hidGetServiceSession())) {
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if (!pm::info::HasLaunchedBootProgram(ncm::SystemProgramId::Hid)) {
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R_THROW(MAKERESULT(Module_Libnx, LibnxError_InitFail_HID));
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}
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InitializeHid();
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}
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g_initialized_hid = true;
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}
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R_SUCCEED();
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}
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u64 ReadHidNpad(HidNpadIdType id) {
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HidNpadSystemExtState state;
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size_t count = hidGetNpadStatesSystemExt(id, std::addressof(state), 1);
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if (count != 0 && (state.attributes & HidNpadAttribute_IsConnected)) {
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return state.buttons;
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}
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return 0;
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}
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}
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Result GetKeysHeld(u64 *out) {
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std::scoped_lock lk(g_hid_lock);
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R_TRY(EnsureHidInitialized());
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*out = ReadHidNpad(HidNpadIdType_Handheld);
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for (size_t controller = 0; controller < 8; controller++) {
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*out |= ReadHidNpad(static_cast<HidNpadIdType>(controller));
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}
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R_SUCCEED();
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}
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#endif
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}
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