mirror of
https://github.com/cathery/sys-con.git
synced 2024-11-19 14:10:00 +00:00
286 lines
8.7 KiB
C++
286 lines
8.7 KiB
C++
#include "Controllers/Xbox360WirelessController.h"
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#include <cmath>
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static ControllerConfig _xbox360WControllerConfig{};
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static constexpr uint8_t reconnectPacket[]{0x08, 0x00, 0x0F, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
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static constexpr uint8_t poweroffPacket[]{0x00, 0x00, 0x08, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
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static constexpr uint8_t initDriverPacket[]{0x00, 0x00, 0x02, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
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static constexpr uint8_t ledPacketOn[]{0x00, 0x00, 0x08, 0x40 | XBOX360LED_TOPLEFT, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
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Xbox360WirelessController::Xbox360WirelessController(std::unique_ptr<IUSBDevice> &&interface)
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: IController(std::move(interface))
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{
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}
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Xbox360WirelessController::~Xbox360WirelessController()
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{
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Exit();
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}
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Result Xbox360WirelessController::Initialize()
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{
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Result rc;
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m_outputBuffer.clear();
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m_outputBuffer.reserve(4);
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rc = OpenInterfaces();
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if (R_FAILED(rc))
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return rc;
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rc = WriteToEndpoint(reconnectPacket, sizeof(reconnectPacket));
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if (R_FAILED(rc))
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return rc;
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SetLED(XBOX360LED_TOPLEFT);
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return rc;
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}
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void Xbox360WirelessController::Exit()
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{
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CloseInterfaces();
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}
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Result Xbox360WirelessController::OpenInterfaces()
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{
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Result rc;
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rc = m_device->Open();
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if (R_FAILED(rc))
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return rc;
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//This will open each interface and try to acquire Xbox 360 controller's in and out endpoints, if it hasn't already
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std::vector<std::unique_ptr<IUSBInterface>> &interfaces = m_device->GetInterfaces();
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for (auto &&interface : interfaces)
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{
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rc = interface->Open();
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if (R_FAILED(rc))
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return rc;
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if (interface->GetDescriptor()->bInterfaceProtocol != 129)
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continue;
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if (interface->GetDescriptor()->bNumEndpoints < 2)
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continue;
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if (!m_inPipe)
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{
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for (int i = 0; i != 15; ++i)
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{
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IUSBEndpoint *inEndpoint = interface->GetEndpoint(IUSBEndpoint::USB_ENDPOINT_IN, i);
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if (inEndpoint)
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{
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rc = inEndpoint->Open();
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if (R_FAILED(rc))
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return 55555;
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m_inPipe = inEndpoint;
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break;
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}
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}
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}
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if (!m_outPipe)
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{
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for (int i = 0; i != 15; ++i)
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{
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IUSBEndpoint *outEndpoint = interface->GetEndpoint(IUSBEndpoint::USB_ENDPOINT_OUT, i);
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if (outEndpoint)
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{
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rc = outEndpoint->Open();
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if (R_FAILED(rc))
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return 66666;
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m_outPipe = outEndpoint;
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break;
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}
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}
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}
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}
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if (!m_inPipe || !m_outPipe)
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return 3469;
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return rc;
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}
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void Xbox360WirelessController::CloseInterfaces()
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{
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if (m_presence)
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WriteToEndpoint(poweroffPacket, sizeof(poweroffPacket));
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//m_device->Reset();
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m_device->Close();
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}
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Result Xbox360WirelessController::GetInput()
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{
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uint8_t input_bytes[64];
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Result rc = m_inPipe->Read(input_bytes, sizeof(input_bytes));
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uint8_t type = input_bytes[0];
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if (input_bytes[0] & 0x08)
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{
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bool newPresence = (input_bytes[1] & 0x80) != 0;
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if (m_presence != newPresence)
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{
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m_presence = newPresence;
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if (m_presence)
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OnControllerConnect();
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else
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OnControllerDisconnect();
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}
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}
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if (input_bytes[1] != 0x1)
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return 1;
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if (type == XBOX360INPUT_BUTTON)
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{
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m_buttonData = *reinterpret_cast<Xbox360ButtonData *>(input_bytes + 4);
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}
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return rc;
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}
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float Xbox360WirelessController::NormalizeTrigger(uint8_t value)
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{
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uint16_t deadzone = (UINT8_MAX * _xbox360WControllerConfig.triggerDeadzonePercent) / 100;
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//If the given value is below the trigger zone, save the calc and return 0, otherwise adjust the value to the deadzone
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return value < deadzone
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? 0
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: static_cast<float>(value - deadzone) / (UINT8_MAX - deadzone);
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}
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void Xbox360WirelessController::NormalizeAxis(int16_t x,
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int16_t y,
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uint8_t deadzonePercent,
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float *x_out,
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float *y_out)
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{
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float x_val = x;
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float y_val = y;
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// Determine how far the stick is pushed.
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//This will never exceed 32767 because if the stick is
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//horizontally maxed in one direction, vertically it must be neutral(0) and vice versa
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float real_magnitude = std::sqrt(x_val * x_val + y_val * y_val);
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float real_deadzone = (32767 * deadzonePercent) / 100;
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// Check if the controller is outside a circular dead zone.
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if (real_magnitude > real_deadzone)
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{
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// Clip the magnitude at its expected maximum value.
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float magnitude = std::min(32767.0f, real_magnitude);
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// Adjust magnitude relative to the end of the dead zone.
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magnitude -= real_deadzone;
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// Normalize the magnitude with respect to its expected range giving a
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// magnitude value of 0.0 to 1.0
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//ratio = (currentValue / maxValue) / realValue
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float ratio = (magnitude / (32767 - real_deadzone)) / real_magnitude;
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*x_out = x_val * ratio;
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*y_out = y_val * ratio;
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}
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else
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{
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// If the controller is in the deadzone zero out the magnitude.
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*x_out = *y_out = 0.0f;
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}
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}
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//Pass by value should hopefully be optimized away by RVO
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NormalizedButtonData Xbox360WirelessController::GetNormalizedButtonData()
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{
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NormalizedButtonData normalData;
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normalData.triggers[0] = NormalizeTrigger(m_buttonData.trigger_left);
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normalData.triggers[1] = NormalizeTrigger(m_buttonData.trigger_right);
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NormalizeAxis(m_buttonData.stick_left_x, m_buttonData.stick_left_y, _xbox360WControllerConfig.leftStickDeadzonePercent,
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&normalData.sticks[0].axis_x, &normalData.sticks[0].axis_y);
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NormalizeAxis(m_buttonData.stick_right_x, m_buttonData.stick_right_y, _xbox360WControllerConfig.rightStickDeadzonePercent,
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&normalData.sticks[1].axis_x, &normalData.sticks[1].axis_y);
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bool buttons[NUM_CONTROLLERBUTTONS]{
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m_buttonData.y,
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m_buttonData.b,
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m_buttonData.a,
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m_buttonData.x,
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m_buttonData.stick_left_click,
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m_buttonData.stick_right_click,
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m_buttonData.bumper_left,
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m_buttonData.bumper_right,
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normalData.triggers[0] > 0,
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normalData.triggers[1] > 0,
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m_buttonData.back,
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m_buttonData.start,
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m_buttonData.dpad_up,
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m_buttonData.dpad_right,
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m_buttonData.dpad_down,
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m_buttonData.dpad_left,
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false,
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m_buttonData.guide,
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};
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for (int i = 0; i != NUM_CONTROLLERBUTTONS; ++i)
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{
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ControllerButton button = _xbox360WControllerConfig.buttons[i];
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normalData.buttons[(button != NOT_SET ? button : i)] = buttons[i];
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}
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return normalData;
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}
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Result Xbox360WirelessController::SetRumble(uint8_t strong_magnitude, uint8_t weak_magnitude)
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{
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uint8_t rumbleData[]{0x00, 0x01, 0x0F, 0xC0, 0x00, strong_magnitude, weak_magnitude, 0x00, 0x00, 0x00, 0x00, 0x00};
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return WriteToEndpoint(rumbleData, sizeof(rumbleData));
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}
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Result Xbox360WirelessController::SetLED(Xbox360LEDValue value)
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{
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uint8_t customLEDPacket[]{0x00, 0x00, 0x08, static_cast<uint8_t>(value | 0x40), 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
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return WriteToEndpoint(customLEDPacket, sizeof(customLEDPacket));
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}
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void Xbox360WirelessController::LoadConfig(const ControllerConfig *config)
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{
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_xbox360WControllerConfig = *config;
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}
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ControllerConfig *Xbox360WirelessController::GetConfig()
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{
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return &_xbox360WControllerConfig;
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}
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Result Xbox360WirelessController::OnControllerConnect()
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{
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m_outputBuffer.push_back(OutputPacket{reconnectPacket, sizeof(reconnectPacket)});
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m_outputBuffer.push_back(OutputPacket{initDriverPacket, sizeof(initDriverPacket)});
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m_outputBuffer.push_back(OutputPacket{ledPacketOn, sizeof(ledPacketOn)});
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return 0;
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}
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Result Xbox360WirelessController::OnControllerDisconnect()
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{
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m_outputBuffer.push_back(OutputPacket{poweroffPacket, sizeof(poweroffPacket)});
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return 0;
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}
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Result Xbox360WirelessController::WriteToEndpoint(const uint8_t *buffer, size_t size)
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{
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return m_outPipe->Write(buffer, size);
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}
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Result Xbox360WirelessController::OutputBuffer()
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{
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if (m_outputBuffer.empty())
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return 1;
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Result rc;
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auto it = m_outputBuffer.begin();
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rc = WriteToEndpoint(it->packet, it->length);
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m_outputBuffer.erase(it);
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return rc;
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}
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