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dolphin/Source/Core/InputCommon/ControllerInterface/Wiimote/WiimoteController.cpp

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// Copyright 2020 Dolphin Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include "InputCommon/ControllerInterface/Wiimote/WiimoteController.h"
#include "Common/BitUtils.h"
#include "Common/Logging/Log.h"
#include "Common/MathUtil.h"
#include "Core/Config/SYSCONFSettings.h"
#include "Core/HW/WiimoteEmu/ExtensionPort.h"
#include "Core/HW/WiimoteEmu/WiimoteEmu.h"
#include "InputCommon/ControllerEmu/ControllerEmu.h"
#include "InputCommon/ControllerInterface/ControllerInterface.h"
namespace ciface::WiimoteController
{
static constexpr char SOURCE_NAME[] = "Bluetooth";
static constexpr size_t IR_SENSITIVITY_LEVEL_COUNT = 5;
template <typename T>
class Button final : public Core::Device::Input
{
public:
Button(const T* value, std::common_type_t<T> mask, std::string name)
: m_value(*value), m_mask(mask), m_name(std::move(name))
{
}
std::string GetName() const override { return m_name; }
ControlState GetState() const override { return (m_value & m_mask) != 0; }
private:
const T& m_value;
const T m_mask;
const std::string m_name;
};
// GetState returns value divided by supplied "extent".
template <typename T, bool Detectable>
class GenericInput : public Core::Device::Input
{
public:
GenericInput(const T* value, std::string name, ControlState extent)
: m_value(*value), m_name(std::move(name)), m_extent(extent)
{
}
bool IsDetectable() const override { return Detectable; }
std::string GetName() const override { return m_name; }
ControlState GetState() const final override { return ControlState(m_value) / m_extent; }
protected:
const T& m_value;
const std::string m_name;
const ControlState m_extent;
};
template <typename T>
using AnalogInput = GenericInput<T, true>;
template <typename T>
using UndetectableAnalogInput = GenericInput<T, false>;
// GetName() is appended with '-' or '+' based on sign of "extent" value.
template <bool Detectable>
class SignedInput final : public GenericInput<float, Detectable>
{
public:
using GenericInput<float, Detectable>::GenericInput;
std::string GetName() const override { return this->m_name + (this->m_extent < 0 ? '-' : '+'); }
};
using SignedAnalogInput = SignedInput<true>;
using UndetectableSignedAnalogInput = SignedInput<false>;
class Motor final : public Core::Device::Output
{
public:
Motor(std::atomic<ControlState>* value) : m_value(*value) {}
std::string GetName() const override { return "Motor"; }
void SetState(ControlState state) override { m_value = state; }
private:
std::atomic<ControlState>& m_value;
};
template <typename T>
void Device::QueueReport(T&& report, std::function<void(ErrorCode)> ack_callback)
{
// Maintain proper rumble state.
report.rumble = m_rumble;
m_wiimote->QueueReport(report.REPORT_ID, &report, sizeof(report));
if (ack_callback)
AddReportHandler(MakeAckHandler(report.REPORT_ID, std::move(ack_callback)));
}
void AddDevice(std::unique_ptr<WiimoteReal::Wiimote> wiimote)
{
// Our real wiimote class requires an index.
// Within the pool it's only going to be used for logging purposes.
static constexpr int CIFACE_WIIMOTE_INDEX = 55;
if (!wiimote->Connect(CIFACE_WIIMOTE_INDEX))
{
WARN_LOG_FMT(WIIMOTE, "WiiRemote: Failed to connect.");
return;
}
wiimote->Prepare();
wiimote->EventLinked();
g_controller_interface.AddDevice(std::make_shared<Device>(std::move(wiimote)));
}
void ReleaseDevices(std::optional<u32> count)
{
u32 removed_devices = 0;
// Remove up to "count" remotes (or all of them if nullopt).
// Real wiimotes will be added to the pool.
// Make sure to force the device removal immediately (as they are shared ptrs and
// they could be kept alive, preventing us from re-creating the device)
g_controller_interface.RemoveDevice(
[&](const Core::Device* device) {
if (device->GetSource() != SOURCE_NAME || count == removed_devices)
return false;
++removed_devices;
return true;
},
true);
}
Device::Device(std::unique_ptr<WiimoteReal::Wiimote> wiimote) : m_wiimote(std::move(wiimote))
{
using EmuWiimote = WiimoteEmu::Wiimote;
// Buttons.
static constexpr std::pair<u16, const char*> button_masks[] = {
{EmuWiimote::BUTTON_A, "A"}, {EmuWiimote::BUTTON_B, "B"},
{EmuWiimote::BUTTON_ONE, "1"}, {EmuWiimote::BUTTON_TWO, "2"},
{EmuWiimote::BUTTON_MINUS, "-"}, {EmuWiimote::BUTTON_PLUS, "+"},
{EmuWiimote::BUTTON_HOME, "HOME"},
};
for (auto& button : button_masks)
AddInput(new Button<u16>(&m_core_data.hex, button.first, button.second));
static constexpr u16 dpad_masks[] = {
EmuWiimote::PAD_UP,
EmuWiimote::PAD_DOWN,
EmuWiimote::PAD_LEFT,
EmuWiimote::PAD_RIGHT,
};
// Friendly orientation inputs.
static constexpr const char* const rotation_names[] = {"Pitch", "Roll", "Yaw"};
for (std::size_t i = 0; i != std::size(rotation_names); ++i)
{
AddInput(
new UndetectableSignedAnalogInput(&m_rotation_inputs.data[i], rotation_names[i], -1.f));
AddInput(new UndetectableSignedAnalogInput(&m_rotation_inputs.data[i], rotation_names[i], 1.f));
}
// Raw accelerometer.
for (std::size_t i = 0; i != std::size(dpad_masks); ++i)
AddInput(new Button<u16>(&m_core_data.hex, dpad_masks[i], named_directions[i]));
static constexpr std::array<std::array<const char*, 2>, 3> accel_names = {{
{"Accel Left", "Accel Right"},
{"Accel Backward", "Accel Forward"},
{"Accel Up", "Accel Down"},
}};
for (std::size_t i = 0; i != m_accel_data.data.size(); ++i)
{
AddInput(new UndetectableAnalogInput<float>(&m_accel_data.data[i], accel_names[i][0], 1));
AddInput(new UndetectableAnalogInput<float>(&m_accel_data.data[i], accel_names[i][1], -1));
}
// IR data.
static constexpr const char* const ir_names[] = {"IR Center X", "IR Center Y"};
for (std::size_t i = 0; i != std::size(ir_names); ++i)
{
AddInput(
new UndetectableSignedAnalogInput(&m_ir_state.center_position.data[i], ir_names[i], -1.f));
AddInput(
new UndetectableSignedAnalogInput(&m_ir_state.center_position.data[i], ir_names[i], 1.f));
}
AddInput(new UndetectableAnalogInput<bool>(&m_ir_state.is_hidden, "IR Hidden", 1));
AddInput(new UndetectableAnalogInput<float>(&m_ir_state.distance, "IR Distance", 1));
// Raw gyroscope.
static constexpr std::array<std::array<const char*, 2>, 3> gyro_names = {{
{"Gyro Pitch Down", "Gyro Pitch Up"},
{"Gyro Roll Left", "Gyro Roll Right"},
{"Gyro Yaw Left", "Gyro Yaw Right"},
}};
for (std::size_t i = 0; i != m_accel_data.data.size(); ++i)
{
AddInput(
new UndetectableAnalogInput<float>(&m_mplus_state.gyro_data.data[i], gyro_names[i][0], 1));
AddInput(
new UndetectableAnalogInput<float>(&m_mplus_state.gyro_data.data[i], gyro_names[i][1], -1));
}
using WiimoteEmu::Nunchuk;
const std::string nunchuk_prefix = "Nunchuk ";
// Buttons.
AddInput(new Button<u8>(&m_nunchuk_state.buttons, Nunchuk::BUTTON_C, nunchuk_prefix + "C"));
AddInput(new Button<u8>(&m_nunchuk_state.buttons, Nunchuk::BUTTON_Z, nunchuk_prefix + "Z"));
// Stick.
static constexpr const char* const nunchuk_stick_names[] = {"X", "Y"};
for (std::size_t i = 0; i != std::size(nunchuk_stick_names); ++i)
{
AddInput(new SignedAnalogInput(&m_nunchuk_state.stick.data[i],
nunchuk_prefix + nunchuk_stick_names[i], -1.f));
AddInput(new SignedAnalogInput(&m_nunchuk_state.stick.data[i],
nunchuk_prefix + nunchuk_stick_names[i], 1.f));
}
// Raw accelerometer.
for (std::size_t i = 0; i != m_accel_data.data.size(); ++i)
{
AddInput(new UndetectableAnalogInput<float>(&m_nunchuk_state.accel.data[i],
nunchuk_prefix + accel_names[i][0], 1));
AddInput(new UndetectableAnalogInput<float>(&m_nunchuk_state.accel.data[i],
nunchuk_prefix + accel_names[i][1], -1));
}
using WiimoteEmu::Classic;
const std::string classic_prefix = "Classic ";
// Buttons.
static constexpr u16 classic_dpad_masks[] = {
Classic::PAD_UP,
Classic::PAD_DOWN,
Classic::PAD_LEFT,
Classic::PAD_RIGHT,
};
for (std::size_t i = 0; i != std::size(classic_dpad_masks); ++i)
AddInput(new Button<u16>(&m_classic_state.buttons, classic_dpad_masks[i],
classic_prefix + named_directions[i]));
static constexpr u16 classic_button_masks[] = {
Classic::BUTTON_A, Classic::BUTTON_B, Classic::BUTTON_X, Classic::BUTTON_Y,
Classic::TRIGGER_L, Classic::TRIGGER_R, Classic::BUTTON_ZL, Classic::BUTTON_ZR,
Classic::BUTTON_MINUS, Classic::BUTTON_PLUS, Classic::BUTTON_HOME,
};
static constexpr const char* const classic_button_names[] = {
"A", "B", "X", "Y", "L", "R", "ZL", "ZR", "-", "+", "HOME",
};
for (std::size_t i = 0; i != std::size(classic_button_masks); ++i)
AddInput(new Button<u16>(&m_classic_state.buttons, classic_button_masks[i],
classic_prefix + classic_button_names[i]));
// Sticks.
static constexpr const char* const classic_stick_names[][2] = {{"Left X", "Left Y"},
{"Right X", "Right Y"}};
for (std::size_t s = 0; s != std::size(m_classic_state.sticks); ++s)
{
for (std::size_t i = 0; i != std::size(m_classic_state.sticks[0].data); ++i)
{
AddInput(new SignedAnalogInput(&m_classic_state.sticks[s].data[i],
classic_prefix + classic_stick_names[s][i], -1.f));
AddInput(new SignedAnalogInput(&m_classic_state.sticks[s].data[i],
classic_prefix + classic_stick_names[s][i], 1.f));
}
}
// Triggers.
AddInput(new AnalogInput<float>(&m_classic_state.triggers[0], classic_prefix + "L-Analog", 1.f));
AddInput(new AnalogInput<float>(&m_classic_state.triggers[1], classic_prefix + "R-Analog", 1.f));
// Specialty inputs:
AddInput(new UndetectableAnalogInput<float>(&m_battery, "Battery", 1.f));
AddInput(new UndetectableAnalogInput<WiimoteEmu::ExtensionNumber>(
&m_extension_number_input, "Attached Extension", WiimoteEmu::ExtensionNumber(1)));
AddInput(new UndetectableAnalogInput<bool>(&m_mplus_attached_input, "Attached MotionPlus", 1));
AddOutput(new Motor(&m_rumble_level));
}
Device::~Device()
{
if (!m_wiimote->IsConnected())
return;
m_wiimote->EmuStop();
INFO_LOG_FMT(WIIMOTE, "WiiRemote: Returning remote to pool.");
WiimoteReal::AddWiimoteToPool(std::move(m_wiimote));
}
std::string Device::GetName() const
{
return "Wii Remote";
}
std::string Device::GetSource() const
{
return SOURCE_NAME;
}
// Always add these at the end, given their hotplug nature
int Device::GetSortPriority() const
{
return -1;
}
void Device::RunTasks()
{
if (IsPerformingTask())
return;
// Request status.
if (Clock::now() >= m_status_outdated_time)
{
QueueReport(OutputReportRequestStatus());
AddReportHandler(std::function<void(const InputReportStatus& status)>(
[this](const InputReportStatus& status) {
DEBUG_LOG_FMT(WIIMOTE, "WiiRemote: Received requested status.");
ProcessStatusReport(status);
}));
return;
}
// Set LEDs.
const auto desired_leds = GetDesiredLEDValue();
if (m_leds != desired_leds)
{
OutputReportLeds rpt = {};
rpt.ack = 1;
rpt.leds = desired_leds;
QueueReport(rpt, [this, desired_leds](ErrorCode result) {
if (result != ErrorCode::Success)
{
WARN_LOG_FMT(WIIMOTE, "WiiRemote: Failed to set LEDs.");
return;
}
DEBUG_LOG_FMT(WIIMOTE, "WiiRemote: Set LEDs.");
m_leds = desired_leds;
});
return;
}
// Set reporting mode to one that supports every component.
static constexpr auto desired_reporting_mode = InputReportID::ReportCoreAccelIR10Ext6;
if (m_reporting_mode != desired_reporting_mode)
{
OutputReportMode mode = {};
mode.ack = 1;
mode.mode = desired_reporting_mode;
QueueReport(mode, [this](ErrorCode error) {
if (error != ErrorCode::Success)
{
WARN_LOG_FMT(WIIMOTE, "WiiRemote: Failed to set reporting mode.");
return;
}
m_reporting_mode = desired_reporting_mode;
DEBUG_LOG_FMT(WIIMOTE, "WiiRemote: Set reporting mode.");
});
return;
}
// Read accelerometer calibration.
if (!m_accel_calibration.has_value())
{
static constexpr u16 ACCEL_CALIBRATION_ADDR = 0x16;
ReadData(AddressSpace::EEPROM, 0, ACCEL_CALIBRATION_ADDR, sizeof(AccelCalibrationData),
[this](ReadResponse response) {
if (!response)
{
WARN_LOG_FMT(WIIMOTE, "WiiRemote: Failed to read accelerometer calibration.");
return;
}
DEBUG_LOG_FMT(WIIMOTE, "WiiRemote: Read accelerometer calibration.");
auto& calibration_data = *response;
const AccelCalibrationData accel_calibration =
Common::BitCastPtr<AccelCalibrationData>(calibration_data.data());
m_accel_calibration = accel_calibration.GetCalibration();
WiimoteEmu::UpdateCalibrationDataChecksum(calibration_data, 1);
// We could potentially try the second block at 0x26 if the checksum is bad.
if (accel_calibration.checksum != calibration_data.back())
WARN_LOG_FMT(WIIMOTE, "WiiRemote: Bad accelerometer calibration checksum.");
});
return;
}
if (!m_ir_state.IsFullyConfigured())
{
ConfigureIRCamera();
return;
}
if (!m_speaker_configured)
{
ConfigureSpeaker();
return;
}
// Perform the following tasks only after M+ is settled.
if (IsWaitingForMotionPlus())
return;
// Read the "active" extension ID. (This also gives us the current M+ mode)
// This will fail on an un-intialized other extension.
// But extension initialization is the same as M+ de-activation so we must try this first.
if (m_extension_port == true &&
(!IsMotionPlusStateKnown() || (!IsMotionPlusActive() && !m_extension_id.has_value())))
{
static constexpr u16 ENCRYPTION_ADDR = 0xfb;
static constexpr u8 ENCRYPTION_VALUE = 0x00;
// First disable encryption. Note this is a no-op when performed on the M+.
WriteData(AddressSpace::I2CBus, WiimoteEmu::ExtensionPort::REPORT_I2C_SLAVE, ENCRYPTION_ADDR,
{ENCRYPTION_VALUE}, [this](ErrorCode error) {
if (error != ErrorCode::Success)
return;
ReadActiveExtensionID();
});
return;
}
static constexpr u16 INIT_ADDR = 0xf0;
static constexpr u8 INIT_VALUE = 0x55;
// Initialize "active" extension if ID was not recognized.
// Note this is done before M+ setup to determine the required passthrough mode.
if (m_extension_id == ExtensionID::Unsupported)
{
// Note that this signal also DE-activates a M+.
WriteData(AddressSpace::I2CBus, WiimoteEmu::ExtensionPort::REPORT_I2C_SLAVE, INIT_ADDR,
{INIT_VALUE}, [this](ErrorCode result) {
DEBUG_LOG_FMT(WIIMOTE, "WiiRemote: Initialized extension: {}.", int(result));
m_extension_id = std::nullopt;
});
return;
}
// The following tasks require a known M+ state.
if (!IsMotionPlusStateKnown())
return;
// We now know the status of the M+.
// Updating it too frequently results off/on flashes on mode change.
m_mplus_attached_input = IsMotionPlusActive();
// Extension removal status is known here. Attachment status is updated after the ID is read.
if (m_extension_port != true)
m_extension_number_input = WiimoteEmu::ExtensionNumber::NONE;
// Periodically try to initialize and activate an inactive M+.
if (!IsMotionPlusActive() && m_mplus_desired_mode.has_value() &&
m_mplus_state.current_mode != m_mplus_desired_mode)
{
static constexpr u16 MPLUS_POLL_ADDR = WiimoteEmu::MotionPlus::PASSTHROUGH_MODE_OFFSET;
ReadData(AddressSpace::I2CBus, WiimoteEmu::MotionPlus::INACTIVE_DEVICE_ADDR, MPLUS_POLL_ADDR, 1,
[this](ReadResponse response) {
if (!response)
{
DEBUG_LOG_FMT(WIIMOTE, "WiiRemote: M+ poll failed.");
HandleMotionPlusNonResponse();
return;
}
WriteData(AddressSpace::I2CBus, WiimoteEmu::MotionPlus::INACTIVE_DEVICE_ADDR,
INIT_ADDR, {INIT_VALUE}, [this](ErrorCode result) {
DEBUG_LOG_FMT(WIIMOTE, "WiiRemote: M+ initialization: {}.", int(result));
if (result != ErrorCode::Success)
{
HandleMotionPlusNonResponse();
return;
}
TriggerMotionPlusModeChange();
});
});
return;
}
// Change active M+ passthrough mode.
if (IsMotionPlusActive() && m_mplus_desired_mode.has_value() &&
m_mplus_state.current_mode != m_mplus_desired_mode)
{
TriggerMotionPlusModeChange();
return;
}
// Read passthrough extension ID.
// This will also give us a desired M+ passthrough mode.
if (IsMotionPlusActive() && m_mplus_state.passthrough_port == true && !m_extension_id.has_value())
{
// The M+ reads the passthrough ext ID and stores it at 0xf6,f8,f9.
static constexpr u16 PASSTHROUGH_EXT_ID_ADDR = 0xf6;
ReadData(AddressSpace::I2CBus, WiimoteEmu::MotionPlus::ACTIVE_DEVICE_ADDR,
PASSTHROUGH_EXT_ID_ADDR, 4, [this](ReadResponse response) {
if (!response)
return;
// Port status may have changed since the read was sent.
// In which case this data read would succeed but be useless.
if (m_mplus_state.passthrough_port != true)
return;
auto& identifier = *response;
ProcessExtensionID(identifier[2], identifier[0], identifier[3]);
});
return;
}
// The following tasks require M+ configuration to be done.
if (!IsMotionPlusInDesiredMode())
return;
// Now that M+ config has settled we can update the extension number.
// Updating it too frequently results off/on flashes on M+ mode change.
UpdateExtensionNumberInput();
static constexpr u16 NORMAL_CALIBRATION_ADDR = 0x20;
// Read M+ calibration.
if (IsMotionPlusActive() && !m_mplus_state.calibration.has_value())
{
ReadData(AddressSpace::I2CBus, WiimoteEmu::MotionPlus::ACTIVE_DEVICE_ADDR,
NORMAL_CALIBRATION_ADDR, sizeof(WiimoteEmu::MotionPlus::CalibrationData),
[this](ReadResponse response) {
if (!response)
return;
DEBUG_LOG_FMT(WIIMOTE, "WiiRemote: Read M+ calibration.");
WiimoteEmu::MotionPlus::CalibrationData calibration =
Common::BitCastPtr<WiimoteEmu::MotionPlus::CalibrationData>(response->data());
const auto read_checksum = std::pair(calibration.crc32_lsb, calibration.crc32_msb);
calibration.UpdateChecksum();
m_mplus_state.SetCalibrationData(calibration);
if (read_checksum != std::pair(calibration.crc32_lsb, calibration.crc32_msb))
{
// We could potentially try another read or call the M+ unusable.
WARN_LOG_FMT(WIIMOTE, "WiiRemote: Bad M+ calibration checksum.");
}
});
return;
}
// Read normal extension calibration.
if ((m_extension_id == ExtensionID::Nunchuk && !m_nunchuk_state.calibration) ||
(m_extension_id == ExtensionID::Classic && !m_classic_state.calibration))
{
// Extension calibration is normally at 0x20 but M+ reads and stores it at 0x40.
static constexpr u16 PASSTHROUGH_CALIBRATION_ADDR = 0x40;
const u16 calibration_addr =
IsMotionPlusActive() ? PASSTHROUGH_CALIBRATION_ADDR : NORMAL_CALIBRATION_ADDR;
static constexpr u16 CALIBRATION_SIZE = 0x10;
ReadData(
AddressSpace::I2CBus, WiimoteEmu::ExtensionPort::REPORT_I2C_SLAVE, calibration_addr,
CALIBRATION_SIZE, [this](ReadResponse response) {
if (!response)
return;
DEBUG_LOG_FMT(WIIMOTE, "WiiRemote: Read extension calibration.");
auto& calibration_data = *response;
const auto read_checksum = std::pair(calibration_data[CALIBRATION_SIZE - 2],
calibration_data[CALIBRATION_SIZE - 1]);
WiimoteEmu::UpdateCalibrationDataChecksum(calibration_data, 2);
Checksum checksum = Checksum::Good;
if (read_checksum != std::pair(calibration_data[CALIBRATION_SIZE - 2],
calibration_data[CALIBRATION_SIZE - 1]))
{
// We could potentially try another block or call the extension unusable.
WARN_LOG_FMT(WIIMOTE, "WiiRemote: Bad extension calibration checksum.");
checksum = Checksum::Bad;
}
if (m_extension_id == ExtensionID::Nunchuk)
{
m_nunchuk_state.SetCalibrationData(
Common::BitCastPtr<WiimoteEmu::Nunchuk::CalibrationData>(calibration_data.data()),
checksum);
}
else if (m_extension_id == ExtensionID::Classic)
{
m_classic_state.SetCalibrationData(
Common::BitCastPtr<WiimoteEmu::Classic::CalibrationData>(calibration_data.data()),
checksum);
}
});
return;
}
}
void Device::HandleMotionPlusNonResponse()
{
// No need for additional checks if an extension is attached.
// (not possible for M+ to become attached)
if (m_extension_port == true)
m_mplus_desired_mode = MotionPlusState::PassthroughMode{};
else
WaitForMotionPlus();
}
// Produce LED bitmask for remotes.
// Remotes 1-4 are normal. Additional remotes LED labels will add up to their assigned ID.
u8 Device::GetDesiredLEDValue() const
{
const auto index = GetId();
// Normal LED behavior for remotes 1-4.
if (index < 4)
return 1 << index;
// Light LED 4 and LEDs 1 through 3 for remotes 5-7. (Add up the numbers on the remote)
if (index < 7)
return 1 << (index - 4) | 8;
// Light LED 4+3 and LEDs 1 or 2 for remotes 8 or 9. (Add up the numbers on the remote)
if (index < 9)
return 1 << (index - 7) | 8 | 4;
// For remotes 10 and up just light all LEDs.
return 0xf;
}
void Device::UpdateExtensionNumberInput()
{
switch (m_extension_id.value_or(ExtensionID::Unsupported))
{
case ExtensionID::Nunchuk:
m_extension_number_input = WiimoteEmu::ExtensionNumber::NUNCHUK;
break;
case ExtensionID::Classic:
m_extension_number_input = WiimoteEmu::ExtensionNumber::CLASSIC;
break;
case ExtensionID::Unsupported:
default:
m_extension_number_input = WiimoteEmu::ExtensionNumber::NONE;
break;
}
}
void Device::ProcessExtensionEvent(bool connected)
{
// Reset extension state.
m_nunchuk_state = {};
m_classic_state = {};
m_extension_id = std::nullopt;
// We won't know the desired mode until we get the extension ID.
if (connected)
m_mplus_desired_mode = std::nullopt;
}
void Device::ProcessExtensionID(u8 id_0, u8 id_4, u8 id_5)
{
if (id_4 == 0x00 && id_5 == 0x00)
{
INFO_LOG_FMT(WIIMOTE, "WiiRemote: Nunchuk is attached.");
m_extension_id = ExtensionID::Nunchuk;
m_mplus_desired_mode = MotionPlusState::PassthroughMode::Nunchuk;
}
else if (id_4 == 0x01 && id_5 == 0x01)
{
INFO_LOG_FMT(WIIMOTE, "WiiRemote: Classic Controller is attached.");
m_extension_id = ExtensionID::Classic;
m_mplus_desired_mode = MotionPlusState::PassthroughMode::Classic;
}
else
{
// This is a normal occurance before extension initialization.
DEBUG_LOG_FMT(WIIMOTE, "WiiRemote: Unknown extension: {} {} {}.", id_0, id_4, id_5);
m_extension_id = ExtensionID::Unsupported;
}
}
void Device::MotionPlusState::SetCalibrationData(
const WiimoteEmu::MotionPlus::CalibrationData& data)
{
DEBUG_LOG_FMT(WIIMOTE, "WiiRemote: Set M+ calibration.");
calibration.emplace();
calibration->fast = data.fast;
calibration->slow = data.slow;
}
Device::NunchukState::Calibration::Calibration() : accel{}, stick{}
{
accel.zero.data.fill(1 << (accel.BITS_OF_PRECISION - 1));
// Approximate 1G value per WiiBrew:
accel.max.data.fill(740);
stick.zero.data.fill(1 << (stick.BITS_OF_PRECISION - 1));
stick.max.data.fill((1 << stick.BITS_OF_PRECISION) - 1);
}
void Device::NunchukState::SetCalibrationData(const WiimoteEmu::Nunchuk::CalibrationData& data,
Checksum checksum)
{
DEBUG_LOG_FMT(WIIMOTE, "WiiRemote: Set Nunchuk calibration.");
calibration.emplace();
if (checksum == Checksum::Bad)
return;
// Genuine Nunchuks have been observed with "min" and "max" values of zero.
// We catch that here and fall back to "full range" calibration.
const auto stick_calibration = data.GetStick();
if (stick_calibration.IsSane())
{
calibration->stick = stick_calibration;
}
else
{
WARN_LOG_FMT(WIIMOTE,
"WiiRemote: Nunchuk stick calibration is not sane. Using fallback values.");
}
// No known reports of bad accelerometer calibration but we'll handle it just in case.
const auto accel_calibration = data.GetAccel();
if (accel_calibration.IsSane())
{
calibration->accel = accel_calibration;
}
else
{
WARN_LOG_FMT(WIIMOTE,
"WiiRemote: Nunchuk accel calibration is not sane. Using fallback values.");
}
}
Device::ClassicState::Calibration::Calibration()
: left_stick{}, right_stick{}, left_trigger{}, right_trigger{}
{
left_stick.zero.data.fill(1 << (left_stick.BITS_OF_PRECISION - 1));
left_stick.max.data.fill((1 << left_stick.BITS_OF_PRECISION) - 1);
right_stick.zero.data.fill(1 << (right_stick.BITS_OF_PRECISION - 1));
right_stick.max.data.fill((1 << right_stick.BITS_OF_PRECISION) - 1);
left_trigger.max = (1 << left_trigger.BITS_OF_PRECISION) - 1;
right_trigger.max = (1 << right_trigger.BITS_OF_PRECISION) - 1;
}
void Device::ClassicState::SetCalibrationData(const WiimoteEmu::Classic::CalibrationData& data,
Checksum checksum)
{
DEBUG_LOG_FMT(WIIMOTE, "WiiRemote: Set Classic Controller calibration.");
calibration.emplace();
if (checksum == Checksum::Bad)
return;
const auto left_stick_calibration = data.GetLeftStick();
if (left_stick_calibration.IsSane())
{
calibration->left_stick = left_stick_calibration;
}
else
{
WARN_LOG_FMT(WIIMOTE,
"WiiRemote: CC left stick calibration is not sane. Using fallback values.");
}
const auto right_stick_calibration = data.GetRightStick();
if (right_stick_calibration.IsSane())
{
calibration->right_stick = right_stick_calibration;
}
else
{
WARN_LOG_FMT(WIIMOTE,
"WiiRemote: CC right stick calibration is not sane. Using fallback values.");
}
calibration->left_trigger = data.GetLeftTrigger();
calibration->right_trigger = data.GetRightTrigger();
}
void Device::ReadActiveExtensionID()
{
static constexpr u16 EXT_ID_ADDR = 0xfa;
static constexpr u16 EXT_ID_SIZE = 6;
ReadData(AddressSpace::I2CBus, WiimoteEmu::ExtensionPort::REPORT_I2C_SLAVE, EXT_ID_ADDR,
EXT_ID_SIZE, [this](ReadResponse response) {
if (!response)
return;
auto& identifier = *response;
// Check for M+ ID.
if (identifier[5] == 0x05)
{
const auto passthrough_mode = MotionPlusState::PassthroughMode(identifier[4]);
m_mplus_state.current_mode = passthrough_mode;
INFO_LOG_FMT(WIIMOTE, "WiiRemote: M+ is active in mode: {}.", int(passthrough_mode));
}
else
{
m_mplus_state.current_mode = MotionPlusState::PassthroughMode{};
ProcessExtensionID(identifier[0], identifier[4], identifier[5]);
}
});
}
bool Device::IRState::IsFullyConfigured() const
{
return enabled && mode_set && current_sensitivity == GetDesiredIRSensitivity();
}
u32 Device::IRState::GetDesiredIRSensitivity()
{
// Wii stores values from 1 to 5. (subtract 1)
const u32 configured_level = Config::Get(Config::SYSCONF_SENSOR_BAR_SENSITIVITY) - 1;
if (configured_level < IR_SENSITIVITY_LEVEL_COUNT)
return configured_level;
// Default to middle level on bad value.
return 2;
}
void Device::SetIRSensitivity(u32 level)
{
struct IRSensitivityConfig
{
std::array<u8, 9> block1;
std::array<u8, 2> block2;
};
// Data for Wii levels 1 to 5.
static constexpr std::array<IRSensitivityConfig, IR_SENSITIVITY_LEVEL_COUNT> sensitivity_configs =
{{
{{0x02, 0x00, 0x00, 0x71, 0x01, 0x00, 0x64, 0x00, 0xfe}, {0xfd, 0x05}},
{{0x02, 0x00, 0x00, 0x71, 0x01, 0x00, 0x96, 0x00, 0xb4}, {0xb3, 0x04}},
{{0x02, 0x00, 0x00, 0x71, 0x01, 0x00, 0xaa, 0x00, 0x64}, {0x63, 0x03}},
{{0x02, 0x00, 0x00, 0x71, 0x01, 0x00, 0xc8, 0x00, 0x36}, {0x35, 0x03}},
{{0x07, 0x00, 0x00, 0x71, 0x01, 0x00, 0x72, 0x00, 0x20}, {0x1f, 0x03}},
}};
static constexpr u16 BLOCK1_ADDR = 0x00;
static constexpr u16 BLOCK2_ADDR = 0x1a;
DEBUG_LOG_FMT(WIIMOTE, "WiiRemote: Setting IR sensitivity: {}.", level + 1);
const auto& sensitivity_config = sensitivity_configs[level];
WriteData(AddressSpace::I2CBus, WiimoteEmu::CameraLogic::I2C_ADDR, BLOCK1_ADDR,
sensitivity_config.block1, [&sensitivity_config, level, this](ErrorCode block_result) {
if (block_result != ErrorCode::Success)
{
WARN_LOG_FMT(WIIMOTE, "WiiRemote: Failed to write IR block 1.");
return;
}
WriteData(AddressSpace::I2CBus, WiimoteEmu::CameraLogic::I2C_ADDR, BLOCK2_ADDR,
sensitivity_config.block2, [&, level, this](ErrorCode block2_result) {
if (block2_result != ErrorCode::Success)
{
WARN_LOG_FMT(WIIMOTE, "WiiRemote: Failed to write IR block 2.");
return;
}
DEBUG_LOG_FMT(WIIMOTE, "WiiRemote: IR sensitivity set.");
m_ir_state.current_sensitivity = level;
});
});
}
void Device::ConfigureIRCamera()
{
if (!m_ir_state.enabled)
{
OutputReportIRLogicEnable2 ir_logic2 = {};
ir_logic2.ack = 1;
ir_logic2.enable = 1;
QueueReport(ir_logic2, [this](ErrorCode result) {
if (result != ErrorCode::Success)
{
WARN_LOG_FMT(WIIMOTE, "WiiRemote: Failed to enable IR.");
return;
}
OutputReportIRLogicEnable ir_logic = {};
ir_logic.ack = 1;
ir_logic.enable = 1;
QueueReport(ir_logic, [this](ErrorCode ir_result) {
if (ir_result != ErrorCode::Success)
{
WARN_LOG_FMT(WIIMOTE, "WiiRemote: Failed to enable IR.");
return;
}
DEBUG_LOG_FMT(WIIMOTE, "WiiRemote: IR enabled.");
m_ir_state.enabled = true;
});
});
return;
}
if (const u32 desired_level = IRState::GetDesiredIRSensitivity();
desired_level != m_ir_state.current_sensitivity)
{
SetIRSensitivity(desired_level);
return;
}
if (!m_ir_state.mode_set)
{
static constexpr u16 MODE_ADDR = 0x33;
// We only support "Basic" mode (it's all that fits in ReportCoreAccelIR10Ext6).
WriteData(AddressSpace::I2CBus, WiimoteEmu::CameraLogic::I2C_ADDR, MODE_ADDR,
{WiimoteEmu::CameraLogic::IR_MODE_BASIC}, [this](ErrorCode mode_result) {
if (mode_result != ErrorCode::Success)
{
WARN_LOG_FMT(WIIMOTE, "WiiRemote: Failed to set IR mode.");
return;
}
// This seems to enable object tracking.
static constexpr u16 ENABLE_ADDR = 0x30;
static constexpr u8 ENABLE_VALUE = 0x08;
WriteData(AddressSpace::I2CBus, WiimoteEmu::CameraLogic::I2C_ADDR, ENABLE_ADDR,
{ENABLE_VALUE}, [this](ErrorCode result) {
if (result != ErrorCode::Success)
{
WARN_LOG_FMT(WIIMOTE, "WiiRemote: Failed to enable object tracking.");
return;
}
DEBUG_LOG_FMT(WIIMOTE, "WiiRemote: IR mode set.");
m_ir_state.mode_set = true;
});
});
}
}
void Device::ConfigureSpeaker()
{
OutputReportSpeakerMute mute = {};
mute.enable = 1;
mute.ack = 1;
QueueReport(mute, [this](ErrorCode mute_result) {
if (mute_result != ErrorCode::Success)
{
WARN_LOG_FMT(WIIMOTE, "WiiRemote: Failed to mute speaker.");
return;
}
OutputReportSpeakerEnable spkr = {};
spkr.enable = 0;
spkr.ack = 1;
QueueReport(spkr, [this](ErrorCode enable_result) {
if (enable_result != ErrorCode::Success)
{
WARN_LOG_FMT(WIIMOTE, "WiiRemote: Failed to disable speaker.");
return;
}
DEBUG_LOG_FMT(WIIMOTE, "WiiRemote: Speaker muted and disabled.");
m_speaker_configured = true;
});
});
}
void Device::TriggerMotionPlusModeChange()
{
if (!m_mplus_desired_mode.has_value())
return;
const u8 passthrough_mode = u8(*m_mplus_desired_mode);
const u8 device_addr = IsMotionPlusActive() ? WiimoteEmu::MotionPlus::ACTIVE_DEVICE_ADDR :
WiimoteEmu::MotionPlus::INACTIVE_DEVICE_ADDR;
WriteData(AddressSpace::I2CBus, device_addr, WiimoteEmu::MotionPlus::PASSTHROUGH_MODE_OFFSET,
{passthrough_mode}, [this](ErrorCode activation_result) {
DEBUG_LOG_FMT(WIIMOTE, "WiiRemote: M+ activation: {}.", int(activation_result));
WaitForMotionPlus();
// Normally M+ will be seen performing a reset here. (extension port events)
// But sometimes (rarely) M+ activation does not cause an extension port event.
// We'll consider the mode unknown. It will be read back after some time.
m_mplus_state.current_mode = std::nullopt;
});
}
void Device::TriggerMotionPlusCalibration()
{
static constexpr u16 CALIBRATION_TRIGGER_ADDR = 0xf2;
static constexpr u8 CALIBRATION_TRIGGER_VALUE = 0x00;
// This triggers a hardware "zero" calibration.
// The effect is notiecable but output still strays from calibration data.
// It seems we're better off just manually determining "zero".
WriteData(AddressSpace::I2CBus, WiimoteEmu::MotionPlus::ACTIVE_DEVICE_ADDR,
CALIBRATION_TRIGGER_ADDR, {CALIBRATION_TRIGGER_VALUE}, [](ErrorCode result) {
DEBUG_LOG_FMT(WIIMOTE, "WiiRemote: M+ calibration trigger done: {}.", int(result));
});
}
bool Device::IsMotionPlusStateKnown() const
{
return m_mplus_state.current_mode.has_value();
}
bool Device::IsMotionPlusActive() const
{
return m_mplus_state.current_mode != MotionPlusState::PassthroughMode{};
}
bool Device::IsMotionPlusInDesiredMode() const
{
return m_mplus_state.current_mode.has_value() &&
(m_mplus_state.current_mode == m_mplus_desired_mode);
}
void Device::ProcessInputReport(WiimoteReal::Report& report)
{
if (report.size() < WiimoteReal::REPORT_HID_HEADER_SIZE)
{
WARN_LOG_FMT(WIIMOTE, "WiiRemote: Bad report size.");
return;
}
auto report_id = InputReportID(report[WiimoteReal::REPORT_HID_HEADER_SIZE]);
for (auto it = m_report_handlers.begin(); true;)
{
if (it == m_report_handlers.end())
{
if (report_id == InputReportID::Status)
{
if (report.size() - WiimoteReal::REPORT_HID_HEADER_SIZE <
sizeof(TypedInputData<InputReportStatus>))
{
WARN_LOG_FMT(WIIMOTE, "WiiRemote: Bad report size.");
}
else
{
ProcessStatusReport(Common::BitCastPtr<InputReportStatus>(report.data() + 2));
}
}
else if (report_id < InputReportID::ReportCore)
{
WARN_LOG_FMT(WIIMOTE, "WiiRemote: Unhandled input report: {}.",
ArrayToString(report.data(), u32(report.size())));
}
break;
}
if (it->IsExpired())
{
WARN_LOG_FMT(WIIMOTE, "WiiRemote: Removing expired handler.");
it = m_report_handlers.erase(it);
continue;
}
if (const auto result = it->TryToHandleReport(report);
result == ReportHandler::HandlerResult::Handled)
{
it = m_report_handlers.erase(it);
break;
}
++it;
}
if (report_id < InputReportID::ReportCore)
{
// Normal input reports can be processed as "ReportCore".
report_id = InputReportID::ReportCore;
}
else
{
// We can assume the last received input report is the current reporting mode.
// FYI: This logic fails to properly handle the (never used) "interleaved" reports.
m_reporting_mode = InputReportID(report_id);
}
auto manipulator = MakeDataReportManipulator(
report_id, report.data() + WiimoteReal::REPORT_HID_HEADER_SIZE + sizeof(InputReportID));
if (manipulator->GetDataSize() + WiimoteReal::REPORT_HID_HEADER_SIZE > report.size())
{
WARN_LOG_FMT(WIIMOTE, "WiiRemote: Bad report size.");
return;
}
// Read buttons.
manipulator->GetCoreData(&m_core_data);
// Process accel data.
if (manipulator->HasAccel() && m_accel_calibration.has_value())
{
// FYI: This logic fails to properly handle the (never used) "interleaved" reports.
AccelData accel_data = {};
manipulator->GetAccelData(&accel_data);
m_accel_data =
accel_data.GetNormalizedValue(*m_accel_calibration) * float(MathUtil::GRAVITY_ACCELERATION);
}
// Process IR data.
if (manipulator->HasIR() && m_ir_state.IsFullyConfigured())
{
m_ir_state.ProcessData(
Common::BitCastPtr<std::array<WiimoteEmu::IRBasic, 2>>(manipulator->GetIRDataPtr()));
}
// Process extension data.
if (IsMotionPlusStateKnown())
{
const auto ext_data = manipulator->GetExtDataPtr();
const auto ext_size = manipulator->GetExtDataSize();
if (IsMotionPlusActive())
ProcessMotionPlusExtensionData(ext_data, ext_size);
else
ProcessNormalExtensionData(ext_data, ext_size);
}
UpdateOrientation();
}
void Device::UpdateOrientation()
{
const auto current_report_time = Clock::now();
const auto elapsed_time = std::chrono::duration_cast<std::chrono::duration<float>>(
current_report_time - m_last_report_time);
m_last_report_time = current_report_time;
// Apply M+ gyro data to our orientation.
m_orientation =
WiimoteEmu::GetRotationFromGyroscope(m_mplus_state.gyro_data * -1 * elapsed_time.count()) *
m_orientation;
// When M+ data is not available give accel/ir data more weight.
// ComplementaryFilter will then just smooth out our data a bit.
const bool is_mplus_active = IsMotionPlusStateKnown() && IsMotionPlusActive();
// With non-zero acceleration data we can perform pitch and roll correction.
if (m_accel_data.LengthSquared())
{
const auto accel_weight = is_mplus_active ? 0.04 : 0.5f;
m_orientation = WiimoteEmu::ComplementaryFilter(m_orientation, m_accel_data, accel_weight);
}
// If IR objects are visible we can perform yaw and pitch correction.
if (!m_ir_state.is_hidden)
{
// FYI: We could do some roll correction from multiple IR objects.
const auto ir_rotation =
Common::Vec3(m_ir_state.center_position.y * WiimoteEmu::CameraLogic::CAMERA_FOV_Y, 0,
m_ir_state.center_position.x * WiimoteEmu::CameraLogic::CAMERA_FOV_X) /
2;
const auto ir_normal = Common::Vec3(0, 1, 0);
const auto ir_vector = WiimoteEmu::GetRotationFromGyroscope(-ir_rotation) * ir_normal;
// Pitch correction will be slightly wrong based on sensorbar height.
// Keep weight below accelerometer weight for that reason.
// Correction will only happen near pitch zero when the sensorbar is actually in view.
const auto ir_weight = is_mplus_active ? 0.035 : 0.45f;
m_orientation = WiimoteEmu::ComplementaryFilter(m_orientation, ir_vector, ir_weight, ir_normal);
}
// Normalize for floating point inaccuracies.
m_orientation = m_orientation.Normalized();
// Update our (pitch, roll, yaw) inputs now that orientation has been adjusted.
m_rotation_inputs =
Common::Vec3{WiimoteEmu::GetPitch(m_orientation), WiimoteEmu::GetRoll(m_orientation),
WiimoteEmu::GetYaw(m_orientation)} /
float(MathUtil::PI);
}
void Device::IRState::ProcessData(const std::array<WiimoteEmu::IRBasic, 2>& data)
{
// A better implementation might extrapolate points when they fall out of camera view.
// But just averaging visible points actually seems to work very well.
using IRObject = WiimoteEmu::IRBasic::IRObject;
MathUtil::RunningVariance<Common::Vec2> points;
const auto camera_max = IRObject(WiimoteEmu::CameraLogic::CAMERA_RES_X - 1,
WiimoteEmu::CameraLogic::CAMERA_RES_Y - 1);
const auto add_point = [&](IRObject point) {
// Non-visible points are 0xFF-filled.
if (point.y > camera_max.y)
return;
points.Push(Common::Vec2(point));
};
for (auto& block : data)
{
add_point(block.GetObject1());
add_point(block.GetObject2());
}
is_hidden = !points.Count();
if (points.Count() >= 2)
{
const auto variance = points.PopulationVariance();
// Adjusts Y coorinate to match horizontal FOV.
const auto separation =
Common::Vec2(std::sqrt(variance.x), std::sqrt(variance.y)) /
Common::Vec2(WiimoteEmu::CameraLogic::CAMERA_RES_X,
WiimoteEmu::CameraLogic::CAMERA_RES_Y * WiimoteEmu::CameraLogic::CAMERA_AR) *
2;
distance = WiimoteEmu::CameraLogic::SENSOR_BAR_LED_SEPARATION / separation.Length() / 2 /
std::tan(WiimoteEmu::CameraLogic::CAMERA_FOV_X / 2);
}
if (points.Count())
{
center_position = points.Mean() / Common::Vec2(camera_max) * 2.f - Common::Vec2(1, 1);
}
else
{
center_position = {};
}
}
void Device::ProcessMotionPlusExtensionData(const u8* ext_data, u32 ext_size)
{
if (ext_size < sizeof(WiimoteEmu::MotionPlus::DataFormat))
return;
const WiimoteEmu::MotionPlus::DataFormat mplus_data =
Common::BitCastPtr<WiimoteEmu::MotionPlus::DataFormat>(ext_data);
const bool is_ext_connected = mplus_data.extension_connected;
// Handle passthrough extension change.
if (is_ext_connected != m_mplus_state.passthrough_port)
{
m_mplus_state.passthrough_port = is_ext_connected;
DEBUG_LOG_FMT(WIIMOTE, "WiiRemote: M+ passthrough port event: {}.", is_ext_connected);
// With no passthrough extension we'll be happy with the current mode.
if (!is_ext_connected)
m_mplus_desired_mode = m_mplus_state.current_mode;
ProcessExtensionEvent(is_ext_connected);
}
if (mplus_data.is_mp_data)
{
m_mplus_state.ProcessData(mplus_data);
return;
}
if (!IsMotionPlusInDesiredMode())
{
DEBUG_LOG_FMT(WIIMOTE, "WiiRemote: Ignoring unwanted passthrough data.");
return;
}
std::array<u8, sizeof(WiimoteEmu::Nunchuk::DataFormat)> data;
std::copy_n(ext_data, ext_size, data.begin());
// Undo bit-hacks of M+ passthrough.
WiimoteEmu::MotionPlus::ReversePassthroughModifications(*m_mplus_state.current_mode, data.data());
ProcessNormalExtensionData(data.data(), u32(data.size()));
}
void Device::ProcessNormalExtensionData(const u8* ext_data, u32 ext_size)
{
if (m_extension_id == ExtensionID::Nunchuk)
{
if (ext_size < sizeof(WiimoteEmu::MotionPlus::DataFormat))
return;
const WiimoteEmu::Nunchuk::DataFormat nunchuk_data =
Common::BitCastPtr<WiimoteEmu::Nunchuk::DataFormat>(ext_data);
m_nunchuk_state.ProcessData(nunchuk_data);
}
else if (m_extension_id == ExtensionID::Classic)
{
if (ext_size < sizeof(WiimoteEmu::Classic::DataFormat))
return;
const WiimoteEmu::Classic::DataFormat cc_data =
Common::BitCastPtr<WiimoteEmu::Classic::DataFormat>(ext_data);
m_classic_state.ProcessData(cc_data);
}
}
void Device::UpdateRumble()
{
static constexpr auto rumble_period = std::chrono::milliseconds(100);
const auto on_time =
std::chrono::duration_cast<Clock::duration>(rumble_period * m_rumble_level.load());
const auto off_time = rumble_period - on_time;
const auto now = Clock::now();
if (m_rumble && (now < m_last_rumble_change + on_time || !off_time.count()))
return;
if (!m_rumble && (now < m_last_rumble_change + off_time || !on_time.count()))
return;
m_last_rumble_change = now;
m_rumble ^= true;
// Rumble flag will be set within QueueReport.
QueueReport(OutputReportRumble{});
}
void Device::UpdateInput()
{
if (!m_wiimote->IsConnected())
{
g_controller_interface.RemoveDevice(
[this](const Core::Device* device) { return device == this; });
return;
}
UpdateRumble();
RunTasks();
WiimoteReal::Report report;
while (m_wiimote->GetNextReport(&report))
{
ProcessInputReport(report);
RunTasks();
}
}
void Device::MotionPlusState::ProcessData(const WiimoteEmu::MotionPlus::DataFormat& data)
{
// We need the calibration block read to know the sensor orientations.
if (!calibration.has_value())
return;
gyro_data = data.GetData().GetAngularVelocity(*calibration);
}
bool Device::IsWaitingForMotionPlus() const
{
return Clock::now() < m_mplus_wait_time;
}
void Device::WaitForMotionPlus()
{
DEBUG_LOG_FMT(WIIMOTE, "WiiRemote: Wait for M+.");
m_mplus_wait_time = Clock::now() + std::chrono::seconds{2};
}
void Device::NunchukState::ProcessData(const WiimoteEmu::Nunchuk::DataFormat& data)
{
buttons = data.GetButtons();
// Stick/accel require calibration data.
if (!calibration.has_value())
return;
stick = data.GetStick().GetNormalizedValue(calibration->stick);
accel = data.GetAccel().GetNormalizedValue(calibration->accel) *
float(MathUtil::GRAVITY_ACCELERATION);
}
void Device::ClassicState::ProcessData(const WiimoteEmu::Classic::DataFormat& data)
{
buttons = data.GetButtons();
// Sticks/triggers require calibration data.
if (!calibration.has_value())
return;
sticks[0] = data.GetLeftStick().GetNormalizedValue(calibration->left_stick);
sticks[1] = data.GetRightStick().GetNormalizedValue(calibration->right_stick);
triggers[0] = data.GetLeftTrigger().GetNormalizedValue(calibration->left_trigger);
triggers[1] = data.GetRightTrigger().GetNormalizedValue(calibration->right_trigger);
}
void Device::ReadData(AddressSpace space, u8 slave, u16 address, u16 size,
std::function<void(ReadResponse)> callback)
{
OutputReportReadData read_data{};
read_data.space = u8(space);
read_data.slave_address = slave;
read_data.address[0] = u8(address >> 8);
read_data.address[1] = u8(address);
read_data.size[0] = u8(size >> 8);
read_data.size[1] = u8(size);
QueueReport(read_data);
AddReadDataReplyHandler(space, slave, address, size, {}, std::move(callback));
}
void Device::AddReadDataReplyHandler(AddressSpace space, u8 slave, u16 address, u16 size,
std::vector<u8> starting_data,
std::function<void(ReadResponse)> callback)
{
// Data read may return a busy ack.
auto ack_handler = MakeAckHandler(OutputReportID::ReadData, [callback](ErrorCode result) {
DEBUG_LOG_FMT(WIIMOTE, "WiiRemote: Read ack error: {}.", int(result));
callback(ReadResponse{});
});
// Or more normally a "ReadDataReply".
auto read_handler = [this, space, slave, address, size, data = std::move(starting_data),
callback =
std::move(callback)](const InputReportReadDataReply& reply) mutable {
if (Common::swap16(reply.address) != address)
return ReportHandler::HandlerResult::NotHandled;
if (reply.error != u8(ErrorCode::Success))
{
DEBUG_LOG_FMT(WIIMOTE, "WiiRemote: Read reply error: {}.", int(reply.error));
callback(ReadResponse{});
return ReportHandler::HandlerResult::Handled;
}
const auto read_count = reply.size_minus_one + 1;
data.insert(data.end(), reply.data, reply.data + read_count);
if (read_count < size)
{
// We have more data to acquire.
AddReadDataReplyHandler(space, slave, address + read_count, size - read_count,
std::move(data), std::move(callback));
}
else
{
// We have all the data.
callback(std::move(data));
}
return ReportHandler::HandlerResult::Handled;
};
AddReportHandler(
std::function<ReportHandler::HandlerResult(const InputReportReadDataReply& reply)>(
std::move(read_handler)),
std::move(ack_handler));
}
template <typename T, typename C>
void Device::WriteData(AddressSpace space, u8 slave, u16 address, T&& data, C&& callback)
{
OutputReportWriteData write_data = {};
write_data.space = u8(space);
write_data.slave_address = slave;
write_data.address[0] = u8(address >> 8);
write_data.address[1] = u8(address);
static constexpr auto MAX_DATA_SIZE = std::size(write_data.data);
write_data.size = u8(std::min(std::size(data), MAX_DATA_SIZE));
std::copy_n(std::begin(data), write_data.size, write_data.data);
// Writes of more than 16 bytes must be split into multiple reports.
if (std::size(data) > MAX_DATA_SIZE)
{
auto next_write = [this, space, slave, address,
additional_data =
std::vector<u8>(std::begin(data) + MAX_DATA_SIZE, std::end(data)),
callback = std::forward<C>(callback)](ErrorCode result) mutable {
if (result != ErrorCode::Success)
callback(result);
else
WriteData(space, slave, address + MAX_DATA_SIZE, additional_data, std::move(callback));
};
QueueReport(write_data, std::move(next_write));
}
else
{
QueueReport(write_data, std::forward<C>(callback));
}
}
Device::ReportHandler::ReportHandler(Clock::time_point expired_time) : m_expired_time(expired_time)
{
}
template <typename... T>
void Device::AddReportHandler(T&&... callbacks)
{
auto& handler = m_report_handlers.emplace_back(Clock::now() + std::chrono::seconds{5});
(handler.AddHandler(std::forward<T>(callbacks)), ...);
}
template <typename R, typename T>
void Device::ReportHandler::AddHandler(std::function<R(const T&)> handler)
{
m_callbacks.emplace_back([handler = std::move(handler)](const WiimoteReal::Report& report) {
if (report[WiimoteReal::REPORT_HID_HEADER_SIZE] != u8(T::REPORT_ID))
return ReportHandler::HandlerResult::NotHandled;
T data;
if (report.size() < sizeof(T) + WiimoteReal::REPORT_HID_HEADER_SIZE + 1)
{
// Off-brand "NEW 2in1" Wii Remote likes to shorten read data replies.
WARN_LOG_FMT(WIIMOTE, "WiiRemote: Bad report size ({}) for report {:#x}. Zero-filling.",
report.size(), int(T::REPORT_ID));
data = {};
std::memcpy(&data, report.data() + WiimoteReal::REPORT_HID_HEADER_SIZE + 1,
report.size() - WiimoteReal::REPORT_HID_HEADER_SIZE + 1);
}
else
{
data = Common::BitCastPtr<T>(report.data() + WiimoteReal::REPORT_HID_HEADER_SIZE + 1);
}
if constexpr (std::is_same_v<decltype(handler(data)), void>)
{
handler(data);
return ReportHandler::HandlerResult::Handled;
}
else
{
return handler(data);
}
});
}
auto Device::ReportHandler::TryToHandleReport(const WiimoteReal::Report& report) -> HandlerResult
{
for (auto& callback : m_callbacks)
{
if (const auto result = callback(report); result != HandlerResult::NotHandled)
return result;
}
return HandlerResult::NotHandled;
}
bool Device::ReportHandler::IsExpired() const
{
return Clock::now() >= m_expired_time;
}
auto Device::MakeAckHandler(OutputReportID report_id,
std::function<void(WiimoteCommon::ErrorCode)> callback)
-> AckReportHandler
{
return [report_id, callback = std::move(callback)](const InputReportAck& reply) {
if (reply.rpt_id != report_id)
return ReportHandler::HandlerResult::NotHandled;
callback(reply.error_code);
return ReportHandler::HandlerResult::Handled;
};
}
bool Device::IsPerformingTask() const
{
return !m_report_handlers.empty();
}
void Device::ProcessStatusReport(const InputReportStatus& status)
{
// Update status periodically to keep battery level value up to date.
m_status_outdated_time = Clock::now() + std::chrono::seconds(10);
m_battery = status.GetEstimatedCharge() * BATTERY_INPUT_MAX_VALUE;
m_leds = status.leds;
if (!status.ir)
m_ir_state = {};
const bool is_ext_connected = status.extension;
// Handle extension port state change.
if (is_ext_connected != m_extension_port)
{
DEBUG_LOG_FMT(WIIMOTE, "WiiRemote: Extension port event: {}.", is_ext_connected);
m_extension_port = is_ext_connected;
// Data reporting stops on an extension port event.
m_reporting_mode = InputReportID::ReportDisabled;
ProcessExtensionEvent(is_ext_connected);
// The M+ is now in an unknown state.
m_mplus_state = {};
if (is_ext_connected)
{
// We can assume the M+ is settled on an attachment event.
m_mplus_wait_time = Clock::now();
}
else
{
// "Nunchuk" will be the most used mode and also works with no passthrough extension.
m_mplus_desired_mode = MotionPlusState::PassthroughMode::Nunchuk;
// If an extension is not connected the M+ is either disabled or resetting.
m_mplus_state.current_mode = MotionPlusState::PassthroughMode{};
}
}
}
} // namespace ciface::WiimoteController
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