Atmosphere/stratosphere/libstratosphere/source/firmware_version.cpp

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/*
* Copyright (c) 2018-2019 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 <mutex>
#include <switch.h>
#include <stratosphere.hpp>
static FirmwareVersion g_firmware_version = FirmwareVersion_Min;
static bool g_HasCached = 0;
static Mutex g_Mutex;
static void _CacheValues(void)
{
if (__atomic_load_n(&g_HasCached, __ATOMIC_SEQ_CST))
return;
mutexLock(&g_Mutex);
if (g_HasCached) {
mutexUnlock(&g_Mutex);
return;
}
u32 target_fw = 0;
{
SecmonArgs args = {0};
args.X[0] = 0xC3000002; /* smcGetConfig */
args.X[1] = 65000; /* ConfigItem_ExosphereVersion */
R_ASSERT(svcCallSecureMonitor(&args));
if (args.X[0] != 0) {
std::abort();
}
target_fw = (args.X[1] >> 0x08) & 0xFF;
}
switch (static_cast<AtmosphereTargetFirmware>(target_fw)) {
case AtmosphereTargetFirmware_100:
g_firmware_version = FirmwareVersion_100;
break;
case AtmosphereTargetFirmware_200:
g_firmware_version = FirmwareVersion_200;
break;
case AtmosphereTargetFirmware_300:
g_firmware_version = FirmwareVersion_300;
break;
case AtmosphereTargetFirmware_400:
g_firmware_version = FirmwareVersion_400;
break;
case AtmosphereTargetFirmware_500:
g_firmware_version = FirmwareVersion_500;
break;
case AtmosphereTargetFirmware_600:
case AtmosphereTargetFirmware_620:
g_firmware_version = FirmwareVersion_600;
break;
case AtmosphereTargetFirmware_700:
g_firmware_version = FirmwareVersion_700;
break;
case AtmosphereTargetFirmware_800:
g_firmware_version = FirmwareVersion_800;
break;
case AtmosphereTargetFirmware_810:
g_firmware_version = FirmwareVersion_810;
break;
default:
std::abort();
break;
}
__atomic_store_n(&g_HasCached, true, __ATOMIC_SEQ_CST);
mutexUnlock(&g_Mutex);
}
FirmwareVersion GetRuntimeFirmwareVersion() {
_CacheValues();
return g_firmware_version;
}
void SetFirmwareVersionForLibnx() {
u32 major = 0, minor = 0, micro = 0;
switch (GetRuntimeFirmwareVersion()) {
case FirmwareVersion_100:
major = 1;
minor = 0;
micro = 0;
break;
case FirmwareVersion_200:
major = 2;
minor = 0;
micro = 0;
break;
case FirmwareVersion_300:
major = 3;
minor = 0;
micro = 0;
break;
case FirmwareVersion_400:
major = 4;
minor = 0;
micro = 0;
break;
case FirmwareVersion_500:
major = 5;
minor = 0;
micro = 0;
break;
case FirmwareVersion_600:
major = 6;
minor = 0;
micro = 0;
break;
case FirmwareVersion_700:
major = 7;
minor = 0;
micro = 0;
break;
case FirmwareVersion_800:
major = 8;
minor = 0;
micro = 0;
break;
case FirmwareVersion_810:
major = 8;
minor = 1;
micro = 0;
break;
default:
std::abort();
break;
}
hosversionSet(MAKEHOSVERSION(major, minor, micro));
}