mirror of
https://github.com/Atmosphere-NX/Atmosphere
synced 2024-12-24 21:51:15 +00:00
190 lines
6.6 KiB
C++
190 lines
6.6 KiB
C++
/*
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* Copyright (c) 2018-2020 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::gpio {
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/* TODO: This deserves proper new interface def support. */
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namespace {
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/* TODO: Manager object. */
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constinit os::SdkMutex g_init_mutex;
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constinit int g_initialize_count = 0;
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using InternalSession = ::GpioPadSession;
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InternalSession *GetInterface(GpioPadSession *session) {
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AMS_ASSERT(session->_session != nullptr);
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return static_cast<::GpioPadSession *>(session->_session);
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}
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}
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void Initialize() {
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std::scoped_lock lk(g_init_mutex);
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if ((g_initialize_count++) == 0) {
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R_ABORT_UNLESS(::gpioInitialize());
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}
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}
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void Finalize() {
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std::scoped_lock lk(g_init_mutex);
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AMS_ASSERT(g_initialize_count > 0);
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if ((--g_initialize_count) == 0) {
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::gpioExit();
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}
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}
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Result OpenSession(GpioPadSession *out_session, ams::DeviceCode device_code) {
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/* Allocate the session. */
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InternalSession *internal_session = static_cast<InternalSession *>(std::malloc(sizeof(InternalSession)));
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AMS_ABORT_UNLESS(internal_session != nullptr);
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auto session_guard = SCOPE_GUARD { std::free(internal_session); };
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/* Get the session. */
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if (hos::GetVersion() >= hos::Version_7_0_0) {
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R_TRY(::gpioOpenSession2(internal_session, device_code.GetInternalValue(), ddsf::AccessMode_ReadWrite));
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} else {
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R_ABORT_UNLESS(::gpioOpenSession(internal_session, static_cast<::GpioPadName>(static_cast<s32>(ConvertToGpioPadName(device_code)))));
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}
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/* Set output. */
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out_session->_session = internal_session;
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out_session->_event = nullptr;
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/* We succeeded. */
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session_guard.Cancel();
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return ResultSuccess();
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}
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void CloseSession(GpioPadSession *session) {
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AMS_ASSERT(session != nullptr);
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/* Unbind the interrupt, if it's still bound. */
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if (session->_event != nullptr) {
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gpio::UnbindInterrupt(session);
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}
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/* Close the session. */
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::gpioPadClose(GetInterface(session));
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std::free(session->_session);
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session->_session = nullptr;
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}
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Result IsWakeEventActive(bool *out_is_active, ams::DeviceCode device_code) {
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if (hos::GetVersion() >= hos::Version_7_0_0) {
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R_TRY(::gpioIsWakeEventActive2(out_is_active, device_code.GetInternalValue()));
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} else {
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R_ABORT_UNLESS(::gpioIsWakeEventActive(out_is_active, static_cast<::GpioPadName>(static_cast<s32>(ConvertToGpioPadName(device_code)))));
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}
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return ResultSuccess();
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}
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Direction GetDirection(GpioPadSession *session) {
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::GpioDirection out;
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R_ABORT_UNLESS(::gpioPadGetDirection(GetInterface(session), std::addressof(out)));
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return static_cast<Direction>(static_cast<s32>(out));
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}
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void SetDirection(GpioPadSession *session, Direction direction) {
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R_ABORT_UNLESS(::gpioPadSetDirection(GetInterface(session), static_cast<::GpioDirection>(static_cast<s32>(direction))));
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}
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GpioValue GetValue(GpioPadSession *session) {
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::GpioValue out;
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R_ABORT_UNLESS(::gpioPadGetValue(GetInterface(session), std::addressof(out)));
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return static_cast<GpioValue>(static_cast<s32>(out));
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}
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void SetValue(GpioPadSession *session, GpioValue value) {
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R_ABORT_UNLESS(::gpioPadSetValue(GetInterface(session), static_cast<::GpioValue>(static_cast<s32>(value))));
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}
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InterruptMode GetInterruptMode(GpioPadSession *session) {
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::GpioInterruptMode out;
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R_ABORT_UNLESS(::gpioPadGetInterruptMode(GetInterface(session), std::addressof(out)));
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return static_cast<InterruptMode>(static_cast<s32>(out));
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}
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void SetInterruptMode(GpioPadSession *session, InterruptMode mode) {
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R_ABORT_UNLESS(::gpioPadSetInterruptMode(GetInterface(session), static_cast<::GpioInterruptMode>(static_cast<s32>(mode))));
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}
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bool GetInterruptEnable(GpioPadSession *session) {
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bool out;
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R_ABORT_UNLESS(::gpioPadGetInterruptEnable(GetInterface(session), std::addressof(out)));
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return out;
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}
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void SetInterruptEnable(GpioPadSession *session, bool en) {
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R_ABORT_UNLESS(::gpioPadSetInterruptEnable(GetInterface(session), en));
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}
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InterruptStatus GetInterruptStatus(GpioPadSession *session) {
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::GpioInterruptStatus out;
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R_ABORT_UNLESS(::gpioPadGetInterruptStatus(GetInterface(session), std::addressof(out)));
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return static_cast<InterruptStatus>(static_cast<s32>(out));
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}
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void ClearInterruptStatus(GpioPadSession *session) {
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R_ABORT_UNLESS(::gpioPadClearInterruptStatus(GetInterface(session)));
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}
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int GetDebounceTime(GpioPadSession *session) {
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int out;
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R_ABORT_UNLESS(::gpioPadGetDebounceTime(GetInterface(session), std::addressof(out)));
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return out;
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}
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void SetDebounceTime(GpioPadSession *session, int ms) {
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R_ABORT_UNLESS(::gpioPadSetDebounceTime(GetInterface(session), ms));
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}
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bool GetDebounceEnabled(GpioPadSession *session) {
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bool out;
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R_ABORT_UNLESS(::gpioPadGetDebounceEnabled(GetInterface(session), std::addressof(out)));
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return out;
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}
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void SetDebounceEnabled(GpioPadSession *session, bool en) {
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R_ABORT_UNLESS(::gpioPadSetDebounceEnabled(GetInterface(session), en));
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}
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Result BindInterrupt(os::SystemEventType *event, GpioPadSession *session) {
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::Event ev;
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R_TRY(::gpioPadBindInterrupt(GetInterface(session), std::addressof(ev)));
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os::AttachReadableHandleToSystemEvent(event, ev.revent, true, os::EventClearMode_ManualClear);
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session->_event = event;
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return ResultSuccess();
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}
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void UnbindInterrupt(GpioPadSession *session) {
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AMS_ASSERT(session->_event != nullptr);
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R_ABORT_UNLESS(::gpioPadUnbindInterrupt(GetInterface(session)));
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os::DestroySystemEvent(session->_event);
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session->_event = nullptr;
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}
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}
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