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boot: refactor battery checking to use new powctl apis

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Michael Scire 2020-11-08 04:16:50 -08:00 • committed by SciresM
parent 485304bd17
commit 708f5bf1fb
44 changed files with 1426 additions and 1554 deletions
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53
libraries/libstratosphere/source/cal/cal_battery_api.cpp Normal file
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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 <stratosphere.hpp>
#include "cal_fs_utils.hpp"
namespace ams::cal {
namespace {
constexpr inline s64 BatteryLotOffset = 0x2CE0;
constexpr inline size_t BatteryLotSize = 0x20;
constexpr inline s64 BatteryVersionOffset = 0x4310;
constexpr inline size_t BatteryVersionSize = 0x10;
constexpr inline size_t BatteryVendorSizeMax = 0x18;
}
Result GetBatteryVersion(u8 *out) {
/* Read the battery version. */
u8 battery_version[BatteryVersionSize];
R_TRY(cal::impl::ReadCalibrationBlock(BatteryVersionOffset, battery_version, sizeof(battery_version)));
/* Write the output. */
*out = battery_version[0];
return ResultSuccess();
}
Result GetBatteryVendor(size_t *out_vendor_size, void *dst, size_t dst_size) {
/* Read the battery lot. */
char battery_lot[BatteryLotSize];
R_TRY(cal::impl::ReadCalibrationBlock(BatteryLotOffset, battery_lot, sizeof(battery_lot)));
/* Copy output. */
*out_vendor_size = static_cast<size_t>(util::Strlcpy(static_cast<char *>(dst), battery_lot, std::min(dst_size, BatteryVendorSizeMax)));
return ResultSuccess();
}
}

53
libraries/libstratosphere/source/cal/cal_crc_utils.cpp Normal file
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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 <stratosphere.hpp>
#include "cal_crc_utils.hpp"
namespace ams::cal::impl {
namespace {
constexpr inline const u16 CrcTable[0x10] = {
0x0000, 0xCC01, 0xD801, 0x1400, 0xF001, 0x3C00, 0x2800, 0xE401,
0xA001, 0x6C00, 0x7800, 0xB401, 0x5000, 0x9C01, 0x8801, 0x4400
};
}
u16 CalculateCrc16(const void *data, size_t size) {
AMS_ASSERT(data != nullptr);
u16 crc = 0x55AA;
const u8 *data_u8 = static_cast<const u8 *>(data);
for (size_t i = 0; i < size; ++i) {
crc = (crc >> 4) ^ (CrcTable[crc & 0xF]) ^ (CrcTable[(data_u8[i] >> 0) & 0xF]);
crc = (crc >> 4) ^ (CrcTable[crc & 0xF]) ^ (CrcTable[(data_u8[i] >> 4) & 0xF]);
}
return crc;
}
Result ValidateCalibrationCrc(const void *data, size_t size) {
AMS_ASSERT(data != nullptr);
AMS_ASSERT(size >= sizeof(u16));
const u16 crc = *reinterpret_cast<const u16 *>(reinterpret_cast<uintptr_t>(data) + size - sizeof(u16));
R_UNLESS(CalculateCrc16(data, size - sizeof(u16)) == crc, cal::ResultCalibrationDataCrcError());
return ResultSuccess();
}
}

24
libraries/libstratosphere/source/cal/cal_crc_utils.hpp Normal file
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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/>.
*/
#pragma once
#include <stratosphere.hpp>
namespace ams::cal::impl {
u16 CalculateCrc16(const void *data, size_t size);
Result ValidateCalibrationCrc(const void *data, size_t size);
}

36
libraries/libstratosphere/source/cal/cal_fs_utils.cpp Normal file
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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 <stratosphere.hpp>
#include "cal_crc_utils.hpp"
#include "cal_fs_utils.hpp"
namespace ams::cal::impl {
Result ReadCalibrationBlock(s64 offset, void *dst, size_t block_size) {
/* Open the calibration binary partition. */
std::unique_ptr<fs::IStorage> storage;
R_TRY(fs::OpenBisPartition(std::addressof(storage), fs::BisPartitionId::CalibrationBinary));
/* Read data from the partition. */
R_TRY(storage->Read(offset, dst, block_size));
/* Validate the crc. */
R_TRY(ValidateCalibrationCrc(dst, block_size));
return ResultSuccess();
}
}

23
libraries/libstratosphere/source/cal/cal_fs_utils.hpp Normal file
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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/>.
*/
#pragma once
#include <stratosphere.hpp>
namespace ams::cal::impl {
Result ReadCalibrationBlock(s64 offset, void *dst, size_t block_size);
}