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Atmosphere/libraries/libstratosphere/source/gpio/gpio_client_api.cpp
2020-11-14 03:37:51 -08:00

209 lines
6.7 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/>.
*/
#include <stratosphere.hpp>
#include "gpio_remote_manager_impl.hpp"
namespace ams::gpio {
namespace {
constinit os::SdkMutex g_init_mutex;
constinit int g_initialize_count = 0;
constinit bool g_remote = false;
std::shared_ptr<sf::IManager> g_manager;
using InternalSession = std::shared_ptr<gpio::sf::IPadSession>;
InternalSession &GetInterface(GpioPadSession *session) {
AMS_ASSERT(session->_session != nullptr);
return *static_cast<InternalSession *>(session->_session);
}
}
void Initialize() {
std::scoped_lock lk(g_init_mutex);
if ((g_initialize_count++) == 0) {
R_ABORT_UNLESS(::gpioInitialize());
g_manager = ams::sf::MakeShared<sf::IManager, RemoteManagerImpl>();
g_remote = true;
}
}
void InitializeWith(std::shared_ptr<gpio::sf::IManager> &&sp) {
std::scoped_lock lk(g_init_mutex);
AMS_ABORT_UNLESS(g_initialize_count == 0);
g_manager = std::move(sp);
g_initialize_count = 1;
}
void Finalize() {
std::scoped_lock lk(g_init_mutex);
AMS_ASSERT(g_initialize_count > 0);
if ((--g_initialize_count) == 0) {
g_manager.reset();
if (g_remote) {
::gpioExit();
}
}
}
Result OpenSession(GpioPadSession *out_session, ams::DeviceCode device_code) {
/* Allocate the session. */
InternalSession *internal_session = new (std::nothrow) InternalSession;
AMS_ABORT_UNLESS(internal_session != nullptr);
auto session_guard = SCOPE_GUARD { delete internal_session; };
/* Get the session. */
{
ams::sf::cmif::ServiceObjectHolder object_holder;
if (hos::GetVersion() >= hos::Version_7_0_0) {
R_TRY(g_manager->OpenSession2(std::addressof(object_holder), device_code, ddsf::AccessMode_ReadWrite));
} else {
R_TRY(g_manager->OpenSession(std::addressof(object_holder), ConvertToGpioPadName(device_code)));
}
*internal_session = object_holder.GetServiceObject<sf::IPadSession>();
}
/* Set output. */
out_session->_session = internal_session;
out_session->_event = nullptr;
/* We succeeded. */
session_guard.Cancel();
return ResultSuccess();
}
void CloseSession(GpioPadSession *session) {
AMS_ASSERT(session != nullptr);
/* Unbind the interrupt, if it's still bound. */
if (session->_event != nullptr) {
gpio::UnbindInterrupt(session);
}
/* Close the session. */
delete std::addressof(GetInterface(session));
session->_session = nullptr;
}
Result IsWakeEventActive(bool *out_is_active, ams::DeviceCode device_code) {
if (hos::GetVersion() >= hos::Version_7_0_0) {
R_TRY(g_manager->IsWakeEventActive2(out_is_active, device_code));
} else {
R_TRY(g_manager->IsWakeEventActive(out_is_active, ConvertToGpioPadName(device_code)));
}
return ResultSuccess();
}
Direction GetDirection(GpioPadSession *session) {
Direction out;
R_ABORT_UNLESS(GetInterface(session)->GetDirection(std::addressof(out)));
return out;
}
void SetDirection(GpioPadSession *session, Direction direction) {
R_ABORT_UNLESS(GetInterface(session)->SetDirection(direction));
}
GpioValue GetValue(GpioPadSession *session) {
GpioValue out;
R_ABORT_UNLESS(GetInterface(session)->GetValue(std::addressof(out)));
return out;
}
void SetValue(GpioPadSession *session, GpioValue value) {
R_ABORT_UNLESS(GetInterface(session)->SetValue(value));
}
InterruptMode GetInterruptMode(GpioPadSession *session) {
InterruptMode out;
R_ABORT_UNLESS(GetInterface(session)->GetInterruptMode(std::addressof(out)));
return out;
}
void SetInterruptMode(GpioPadSession *session, InterruptMode mode) {
R_ABORT_UNLESS(GetInterface(session)->SetInterruptMode(mode));
}
bool GetInterruptEnable(GpioPadSession *session) {
bool out;
R_ABORT_UNLESS(GetInterface(session)->GetInterruptEnable(std::addressof(out)));
return out;
}
void SetInterruptEnable(GpioPadSession *session, bool en) {
R_ABORT_UNLESS(GetInterface(session)->SetInterruptEnable(en));
}
InterruptStatus GetInterruptStatus(GpioPadSession *session) {
InterruptStatus out;
R_ABORT_UNLESS(GetInterface(session)->GetInterruptStatus(std::addressof(out)));
return out;
}
void ClearInterruptStatus(GpioPadSession *session) {
R_ABORT_UNLESS(GetInterface(session)->ClearInterruptStatus());
}
int GetDebounceTime(GpioPadSession *session) {
int out;
R_ABORT_UNLESS(GetInterface(session)->GetDebounceTime(std::addressof(out)));
return out;
}
void SetDebounceTime(GpioPadSession *session, int ms) {
R_ABORT_UNLESS(GetInterface(session)->SetDebounceTime(ms));
}
bool GetDebounceEnabled(GpioPadSession *session) {
bool out;
R_ABORT_UNLESS(GetInterface(session)->GetDebounceEnabled(std::addressof(out)));
return out;
}
void SetDebounceEnabled(GpioPadSession *session, bool en) {
R_ABORT_UNLESS(GetInterface(session)->SetDebounceEnabled(en));
}
Result BindInterrupt(os::SystemEventType *event, GpioPadSession *session) {
AMS_ASSERT(session->_event == nullptr);
ams::sf::CopyHandle handle;
R_TRY(GetInterface(session)->BindInterrupt(std::addressof(handle)));
os::AttachReadableHandleToSystemEvent(event, handle.GetValue(), true, os::EventClearMode_ManualClear);
session->_event = event;
return ResultSuccess();
}
void UnbindInterrupt(GpioPadSession *session) {
AMS_ASSERT(session->_event != nullptr);
R_ABORT_UNLESS(GetInterface(session)->UnbindInterrupt());
os::DestroySystemEvent(session->_event);
session->_event = nullptr;
}
}