Atmosphere/stratosphere/fatal/source/fatal_repair.cpp

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/*
* 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 "fatal_repair.hpp"
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#include "fatal_service_for_self.hpp"
namespace ams::fatal::srv {
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namespace {
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bool IsInRepair() {
/* Before firmware 3.0.0, this wasn't implemented. */
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if (hos::GetVersion() < hos::Version_3_0_0) {
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return false;
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}
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bool in_repair;
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return R_SUCCEEDED(setsysGetInRepairProcessEnableFlag(&in_repair)) && in_repair;
}
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bool IsInRepairWithoutVolHeld() {
if (IsInRepair()) {
GpioPadSession vol_btn;
if (R_FAILED(gpioOpenSession(&vol_btn, GpioPadName_ButtonVolUp))) {
return true;
}
/* Ensure we close even on early return. */
ON_SCOPE_EXIT { gpioPadClose(&vol_btn); };
/* Set direction input. */
gpioPadSetDirection(&vol_btn, GpioDirection_Input);
/* Ensure that we're holding the volume button for a full second. */
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auto start = os::GetSystemTick();
do {
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GpioValue val;
if (R_FAILED(gpioPadGetValue(&vol_btn, &val)) || val != GpioValue_Low) {
return true;
}
/* Sleep for 100 ms. */
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os::SleepThread(TimeSpan::FromMilliSeconds(100));
} while (os::ConvertToTimeSpan(os::GetSystemTick() - start) < TimeSpan::FromSeconds(1));
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}
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return false;
}
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bool NeedsRunTimeReviser() {
/* Before firmware 5.0.0, this wasn't implemented. */
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if (hos::GetVersion() < hos::Version_5_0_0) {
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return false;
}
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bool requires_time_reviser;
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return R_SUCCEEDED(setsysGetRequiresRunRepairTimeReviser(&requires_time_reviser)) && requires_time_reviser;
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}
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bool IsTimeReviserCartridgeInserted() {
FsGameCardHandle gc_hnd;
u8 gc_attr;
{
FsDeviceOperator devop;
if (R_FAILED(fsOpenDeviceOperator(&devop))) {
return false;
}
/* Ensure we close even on early return. */
ON_SCOPE_EXIT { fsDeviceOperatorClose(&devop); };
/* Check that a gamecard is inserted. */
bool inserted;
if (R_FAILED(fsDeviceOperatorIsGameCardInserted(&devop, &inserted)) || !inserted) {
return false;
}
/* Check that we can retrieve the gamecard's attributes. */
if (R_FAILED(fsDeviceOperatorGetGameCardHandle(&devop, &gc_hnd)) || R_FAILED(fsDeviceOperatorGetGameCardAttribute(&devop, &gc_hnd, &gc_attr))) {
return false;
}
}
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/* Check that the gamecard is a repair tool. */
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return (gc_attr & FsGameCardAttribute_RepairToolFlag);
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}
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bool IsInRepairWithoutTimeReviserCartridge() {
return NeedsRunTimeReviser() && IsTimeReviserCartridgeInserted();
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}
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}
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void CheckRepairStatus() {
if (IsInRepairWithoutVolHeld()) {
ThrowFatalForSelf(ResultInRepairWithoutVolHeld());
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}
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if (IsInRepairWithoutTimeReviserCartridge()) {
ThrowFatalForSelf(ResultInRepairWithoutTimeReviserCartridge());
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}
}
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}