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// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include <cstring>
#include "input_common/helpers/joycon_protocol/calibration.h"
#include "input_common/helpers/joycon_protocol/joycon_types.h"
namespace InputCommon::Joycon {
CalibrationProtocol::CalibrationProtocol(std::shared_ptr<JoyconHandle> handle)
: JoyconCommonProtocol(handle) {}
DriverResult CalibrationProtocol::GetLeftJoyStickCalibration(JoyStickCalibration& calibration) {
std::vector<u8> buffer;
DriverResult result{DriverResult::Success};
calibration = {};
SetBlocking();
result = ReadSPI(CalAddr::USER_LEFT_MAGIC, sizeof(u16), buffer);
if (result == DriverResult::Success) {
const bool has_user_calibration = buffer[0] == 0xB2 && buffer[1] == 0xA1;
if (has_user_calibration) {
result = ReadSPI(CalAddr::USER_LEFT_DATA, 9, buffer);
} else {
result = ReadSPI(CalAddr::FACT_LEFT_DATA, 9, buffer);
}
}
if (result == DriverResult::Success) {
calibration.x.max = static_cast<u16>(((buffer[1] & 0x0F) << 8) | buffer[0]);
calibration.y.max = static_cast<u16>((buffer[2] << 4) | (buffer[1] >> 4));
calibration.x.center = static_cast<u16>(((buffer[4] & 0x0F) << 8) | buffer[3]);
calibration.y.center = static_cast<u16>((buffer[5] << 4) | (buffer[4] >> 4));
calibration.x.min = static_cast<u16>(((buffer[7] & 0x0F) << 8) | buffer[6]);
calibration.y.min = static_cast<u16>((buffer[8] << 4) | (buffer[7] >> 4));
}
// Nintendo fix for drifting stick
// result = ReadSPI(0x60, 0x86 ,buffer, 16);
// calibration.deadzone = (u16)((buffer[4] << 8) & 0xF00 | buffer[3]);
// Set a valid default calibration if data is missing
ValidateCalibration(calibration);
SetNonBlocking();
return result;
}
DriverResult CalibrationProtocol::GetRightJoyStickCalibration(JoyStickCalibration& calibration) {
std::vector<u8> buffer;
DriverResult result{DriverResult::Success};
calibration = {};
SetBlocking();
result = ReadSPI(CalAddr::USER_RIGHT_MAGIC, sizeof(u16), buffer);
if (result == DriverResult::Success) {
const bool has_user_calibration = buffer[0] == 0xB2 && buffer[1] == 0xA1;
if (has_user_calibration) {
result = ReadSPI(CalAddr::USER_RIGHT_DATA, 9, buffer);
} else {
result = ReadSPI(CalAddr::FACT_RIGHT_DATA, 9, buffer);
}
}
if (result == DriverResult::Success) {
calibration.x.center = static_cast<u16>(((buffer[1] & 0x0F) << 8) | buffer[0]);
calibration.y.center = static_cast<u16>((buffer[2] << 4) | (buffer[1] >> 4));
calibration.x.min = static_cast<u16>(((buffer[4] & 0x0F) << 8) | buffer[3]);
calibration.y.min = static_cast<u16>((buffer[5] << 4) | (buffer[4] >> 4));
calibration.x.max = static_cast<u16>(((buffer[7] & 0x0F) << 8) | buffer[6]);
calibration.y.max = static_cast<u16>((buffer[8] << 4) | (buffer[7] >> 4));
}
// Nintendo fix for drifting stick
// buffer = ReadSPI(0x60, 0x98 , 16);
// joystick.deadzone = (u16)((buffer[4] << 8) & 0xF00 | buffer[3]);
// Set a valid default calibration if data is missing
ValidateCalibration(calibration);
SetNonBlocking();
return result;
}
DriverResult CalibrationProtocol::GetImuCalibration(MotionCalibration& calibration) {
std::vector<u8> buffer;
DriverResult result{DriverResult::Success};
calibration = {};
SetBlocking();
result = ReadSPI(CalAddr::USER_IMU_MAGIC, sizeof(u16), buffer);
if (result == DriverResult::Success) {
const bool has_user_calibration = buffer[0] == 0xB2 && buffer[1] == 0xA1;
if (has_user_calibration) {
result = ReadSPI(CalAddr::USER_IMU_DATA, sizeof(IMUCalibration), buffer);
} else {
result = ReadSPI(CalAddr::FACT_IMU_DATA, sizeof(IMUCalibration), buffer);
}
}
if (result == DriverResult::Success) {
IMUCalibration device_calibration{};
memcpy(&device_calibration, buffer.data(), sizeof(IMUCalibration));
calibration.accelerometer[0].offset = device_calibration.accelerometer_offset[0];
calibration.accelerometer[1].offset = device_calibration.accelerometer_offset[1];
calibration.accelerometer[2].offset = device_calibration.accelerometer_offset[2];
calibration.accelerometer[0].scale = device_calibration.accelerometer_scale[0];
calibration.accelerometer[1].scale = device_calibration.accelerometer_scale[1];
calibration.accelerometer[2].scale = device_calibration.accelerometer_scale[2];
calibration.gyro[0].offset = device_calibration.gyroscope_offset[0];
calibration.gyro[1].offset = device_calibration.gyroscope_offset[1];
calibration.gyro[2].offset = device_calibration.gyroscope_offset[2];
calibration.gyro[0].scale = device_calibration.gyroscope_scale[0];
calibration.gyro[1].scale = device_calibration.gyroscope_scale[1];
calibration.gyro[2].scale = device_calibration.gyroscope_scale[2];
}
ValidateCalibration(calibration);
SetNonBlocking();
return result;
}
DriverResult CalibrationProtocol::GetRingCalibration(RingCalibration& calibration,
s16 current_value) {
// TODO: Get default calibration form ring itself
if (ring_data_max == 0 && ring_data_min == 0) {
ring_data_max = current_value + 800;
ring_data_min = current_value - 800;
ring_data_default = current_value;
}
if (ring_data_max < current_value) {
ring_data_max = current_value;
}
if (ring_data_min > current_value) {
ring_data_min = current_value;
}
calibration = {
.default_value = ring_data_default,
.max_value = ring_data_max,
.min_value = ring_data_min,
};
return DriverResult::Success;
}
void CalibrationProtocol::ValidateCalibration(JoyStickCalibration& calibration) {
constexpr u16 DefaultStickCenter{2048};
constexpr u16 DefaultStickRange{1740};
if (calibration.x.center == 0xFFF || calibration.x.center == 0) {
calibration.x.center = DefaultStickCenter;
}
if (calibration.x.max == 0xFFF || calibration.x.max == 0) {
calibration.x.max = DefaultStickRange;
}
if (calibration.x.min == 0xFFF || calibration.x.min == 0) {
calibration.x.min = DefaultStickRange;
}
if (calibration.y.center == 0xFFF || calibration.y.center == 0) {
calibration.y.center = DefaultStickCenter;
}
if (calibration.y.max == 0xFFF || calibration.y.max == 0) {
calibration.y.max = DefaultStickRange;
}
if (calibration.y.min == 0xFFF || calibration.y.min == 0) {
calibration.y.min = DefaultStickRange;
}
}
void CalibrationProtocol::ValidateCalibration(MotionCalibration& calibration) {
for (auto& sensor : calibration.accelerometer) {
if (sensor.scale == 0) {
sensor.scale = 0x4000;
}
}
for (auto& sensor : calibration.gyro) {
if (sensor.scale == 0) {
sensor.scale = 0x3be7;
}
}
}
} // namespace InputCommon::Joycon
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