mirror of
https://github.com/Atmosphere-NX/Atmosphere-libs.git
synced 2025-10-31 03:25:47 +01:00
89 lines
2.9 KiB
C++
89 lines
2.9 KiB
C++
/*
|
|
* Copyright (c) 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 "impl/powctl_device_management.hpp"
|
|
|
|
namespace ams::powctl {
|
|
|
|
namespace {
|
|
|
|
ddsf::AccessMode SanitizeAccessMode(ddsf::AccessMode access_mode) {
|
|
switch (access_mode) {
|
|
case ddsf::AccessMode_Read:
|
|
case ddsf::AccessMode_Write:
|
|
case ddsf::AccessMode_ReadWrite:
|
|
case ddsf::AccessMode_WriteShared:
|
|
case ddsf::AccessMode_ReadWriteShared:
|
|
return access_mode;
|
|
default:
|
|
return ddsf::AccessMode_None;
|
|
}
|
|
}
|
|
|
|
impl::SessionImpl &GetSessionImpl(Session &session) {
|
|
return GetReference(session.impl_storage);
|
|
}
|
|
|
|
void DestroySession(Session &session) {
|
|
std::destroy_at(std::addressof(GetSessionImpl(session)));
|
|
session.has_session = false;
|
|
}
|
|
|
|
void DestroySessionIfNecessary(Session &session) {
|
|
if (session.has_session) {
|
|
DestroySession(session);
|
|
}
|
|
}
|
|
|
|
void CloseSessionIfOpen(Session &session) {
|
|
if (session.has_session && GetSessionImpl(session).IsOpen()) {
|
|
DestroySession(session);
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
Result OpenSession(Session *out, DeviceCode device_code, ddsf::AccessMode access_mode) {
|
|
/* Validate input. */
|
|
AMS_ASSERT(out != nullptr);
|
|
access_mode = SanitizeAccessMode(access_mode);
|
|
|
|
/* Find the target device. */
|
|
impl::IDevice *device = nullptr;
|
|
R_TRY(impl::FindDevice(std::addressof(device), device_code));
|
|
|
|
/* Clean up the session if we have one. */
|
|
DestroySessionIfNecessary(*out);
|
|
|
|
/* Construct the session. */
|
|
auto *session = std::construct_at(std::addressof(GetSessionImpl(*out)));
|
|
auto guard = SCOPE_GUARD { DestroySessionIfNecessary(*out); };
|
|
|
|
/* Try to open the session. */
|
|
R_TRY(ddsf::OpenSession(device, session, access_mode));
|
|
|
|
/* We opened the session! */
|
|
guard.Cancel();
|
|
R_SUCCEED();
|
|
}
|
|
|
|
void CloseSession(Session &session) {
|
|
/* This seems extremely unnecessary/duplicate, but it's what Nintendo does. */
|
|
CloseSessionIfOpen(session);
|
|
DestroySession(session);
|
|
}
|
|
|
|
} |