Atmosphere/libraries/libexosphere/source/tsec/tsec_api.cpp
2021-09-06 16:26:50 -07:00

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2 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 <exosphere.hpp>
namespace ams::tsec {
namespace {
enum TsecResult {
TsecResult_Success = 0xB0B0B0B0,
TsecResult_Failure = 0xD0D0D0D0,
};
bool RunFirmwareImpl(const void *fw, size_t fw_size) {
/* Enable relevant clocks. */
clkrst::EnableHost1xClock();
clkrst::EnableTsecClock();
clkrst::EnableSorSafeClock();
clkrst::EnableSor0Clock();
clkrst::EnableSor1Clock();
clkrst::EnableKfuseClock();
/* Disable clocks once we're done. */
ON_SCOPE_EXIT {
clkrst::DisableHost1xClock();
clkrst::DisableTsecClock();
clkrst::DisableSorSafeClock();
clkrst::DisableSor0Clock();
clkrst::DisableSor1Clock();
clkrst::DisableKfuseClock();
};
/* TODO */
AMS_UNUSED(fw, fw_size);
return true;
}
}
bool RunTsecFirmware(const void *fw, size_t fw_size) {
/* TODO */
AMS_UNUSED(fw, fw_size);
return RunFirmwareImpl(fw, fw_size);
}
void Lock() {
/* Set the tsec host1x syncpoint (160) to be secure. */
/* TODO: constexpr value. */
reg::ReadWrite(0x500038F8, REG_BITS_VALUE(0, 1, 0));
/* Clear the tsec host1x syncpoint. */
reg::Write(0x50003300, 0);
}
}