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GamepadHIDSub.cpp
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GamepadHIDSub.cpp
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// https://hardwaretester.com/gamepad
//#define USE_TRIGGERS
// #define USE_TRIGGERS2
#define MAX_REPORT_DESCRIPTOR_BYTES 150
#include <NimBLEDevice.h>
#include <NimBLEUtils.h>
#include <NimBLEServer.h>
#include "NimBLEHIDDevice.h"
#include "HIDTypes.h"
#include "HIDKeyboardTypes.h"
#include <driver/adc.h>
#include "sdkconfig.h"
#include "BleConnectionStatus.h"
#include "GamepadHIDSub.h"
#include "GamepadConfiguration.h"
#if defined(CONFIG_ARDUHAL_ESP_LOG)
#include "esp32-hal-log.h"
#define LOG_TAG "GamepadHIDSub"
#else
#include "esp_log.h"
static const char *LOG_TAG = "GamepadHIDSub";
#endif
uint8_t tempHidReportDescriptor[MAX_REPORT_DESCRIPTOR_BYTES];
int hidReportDescriptorSize = 0;
uint8_t reportSize = 0;
uint8_t numOfButtonBytes = 0;
uint16_t vid;
uint16_t pid;
uint16_t guidVersion;
uint16_t axesMin;
uint16_t axesMax;
uint16_t simulationMin;
uint16_t simulationMax;
std::string modelNumber;
std::string softwareRevision;
std::string serialNumber;
std::string firmwareRevision;
std::string hardwareRevision;
// Pointer to callback funcion which receives output reports (e.g. force feedback)
GamepadCallback PGamepadOutputReportReceiver=0;
GamepadHIDSub::GamepadHIDSub() : _buttons(),
_specialButtons(0),
_x(0),
_y(0),
_z(0),
_rZ(0),
_rX(0),
_rY(0),
_slider1(0),
_slider2(0),
_rudder(0),
_throttle(0),
_accelerator(0),
_brake(0),
_steering(0),
_hat1(0),
_hat2(0),
_hat3(0),
_hat4(0)
{
this->resetButtons();
}
void GamepadHIDSub::resetButtons()
{
memset(_buttons, 0, sizeof(_buttons));
memset(TriggerButtons, 0, sizeof(TriggerButtons));
}
#ifdef USE_TRIGGERS
// Add 2 Trigger buttons
uint8_t TriggerButtonsDescription[] =
{
// 0x05, 0x09, // USAGE_PAGE (Button)
0x05, 0x02, // USAGE_PAGE (Simulation Control) // 94 Index trigger? C0?
0x15, 0x00, // LOGICAL_MINIMUM (0)
0x26, 0xFF, 0x00, // LOGICAL_MAXIMUM (255)
// 0x09, 0xC4, // USAGE(Acceleration)
0x09, 0xC0, // USAGE(Trigger)
0x09, 0xC0, // USAGE(Trigger)
0x75, 0x08, // REPORT_SIZE (8)
0x95, 0x02, // REPORT_COUNT (2)
0x81, 0x02, // INPUT (Data,Var,Abs)
};
const int numOfTriggerBytes=2;
#else
const int numOfTriggerBytes=0;
#endif
uint8_t OutputReport[] =
{
0x09, 0x3B, // UsageId(Byte Count[0x003B])
0x15, 0x80, // LogicalMinimum(-128)
0x25, 0x7F, // LogicalMaximum(127)
0x95, 0x08, // ReportCount(8)
0x75, 0x08, // ReportSize(8)
0x91, 0x02, // Output(Data, Variable, Absolute, NoWrap, Linear, PreferredState, NoNullPosition, NonVolatile, BitField)
};
void GamepadHIDSub::Configure(GamepadConfiguration *config, GamepadCallback pGPCallback)
{
configuration = *config; // we make a copy, so the user can't change actual values midway through operation, without calling the begin function again
PGamepadOutputReportReceiver = pGPCallback;
//----------------------------------------------------
// Calculate the final size of the REPORT (not the descriptor!)
uint8_t buttonPaddingBits = 8 - (configuration.getButtonCount() % 8);
if (buttonPaddingBits == 8)
{
buttonPaddingBits = 0;
}
uint8_t specialButtonPaddingBits = 8 - (configuration.getTotalSpecialButtonCount() % 8);
if (specialButtonPaddingBits == 8)
{
specialButtonPaddingBits = 0;
}
uint8_t numOfAxisBytes = configuration.getAxisCount() * 2;
uint8_t numOfSimulationBytes = configuration.getSimulationCount() * 2;
numOfButtonBytes = configuration.getButtonCount() / 8;
if (buttonPaddingBits > 0)
{
numOfButtonBytes++;
}
uint8_t numOfSpecialButtonBytes = configuration.getTotalSpecialButtonCount() / 8;
if (specialButtonPaddingBits > 0)
{
numOfSpecialButtonBytes++;
}
reportSize = numOfButtonBytes + numOfSpecialButtonBytes + numOfTriggerBytes + numOfAxisBytes + numOfSimulationBytes + configuration.getHatSwitchCount();
//----------------------------------------------------
// Build the report descriptor
// USAGE_PAGE (Generic Desktop)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x05; // Gamepad
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x01; // 3D game controller
// USAGE (Joystick - 0x04; Gamepad - 0x05; Multi-axis Controller - 0x08)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x09;
tempHidReportDescriptor[hidReportDescriptorSize++] = configuration.getControllerType();
// COLLECTION (Application)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0xa1; //?
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x01; //?
// REPORT_ID (Default: 5, Gamepad)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x85;
tempHidReportDescriptor[hidReportDescriptorSize++] = GAMEPAD_REPORT_ID; // configuration.getHidReportId();
if (configuration.getButtonCount() > 0)
{
// USAGE_PAGE (Button)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x05;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x09;
// LOGICAL_MINIMUM (0)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x15;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x00;
// LOGICAL_MAXIMUM (1)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x25;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x01;
// REPORT_SIZE (1)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x75;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x01;
// USAGE_MINIMUM (Button 1)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x19;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x01;
// USAGE_MAXIMUM (Up to 128 buttons possible)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x29;
tempHidReportDescriptor[hidReportDescriptorSize++] = configuration.getButtonCount();
// REPORT_COUNT (# of buttons)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x95;
tempHidReportDescriptor[hidReportDescriptorSize++] = configuration.getButtonCount();
// INPUT (Data,Var,Abs)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x81;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x02;
if (buttonPaddingBits > 0)
{
// REPORT_SIZE (1)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x75;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x01;
// REPORT_COUNT (# of padding bits)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x95;
tempHidReportDescriptor[hidReportDescriptorSize++] = buttonPaddingBits;
// INPUT (Const,Var,Abs)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x81;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x03;
} // Padding Bits Needed
} // Buttons
if (configuration.getTotalSpecialButtonCount() > 0)
{
// LOGICAL_MINIMUM (0)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x15;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x00;
// LOGICAL_MAXIMUM (1)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x25;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x01;
// REPORT_SIZE (1)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x75;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x01;
if (configuration.getDesktopSpecialButtonCount() > 0)
{
// USAGE_PAGE (Generic Desktop)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x05;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x01;
// REPORT_COUNT
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x95;
tempHidReportDescriptor[hidReportDescriptorSize++] = configuration.getDesktopSpecialButtonCount();
if (configuration.getIncludeStart())
{
// USAGE (Start)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x09;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x3D;
}
if (configuration.getIncludeSelect())
{
// USAGE (Select)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x09;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x3E;
}
if (configuration.getIncludeMenu())
{
// USAGE (App Menu)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x09;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x86;
}
// INPUT (Data,Var,Abs)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x81;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x02;
}
if (configuration.getConsumerSpecialButtonCount() > 0)
{
// USAGE_PAGE (Consumer Page)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x05;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x0C;
// REPORT_COUNT
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x95;
tempHidReportDescriptor[hidReportDescriptorSize++] = configuration.getConsumerSpecialButtonCount();
if (configuration.getIncludeHome())
{
// USAGE (Home)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x0A;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x23;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x02;
}
if (configuration.getIncludeBack())
{
// USAGE (Back)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x0A;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x24;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x02;
}
if (configuration.getIncludeVolumeInc())
{
// USAGE (Volume Increment)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x09;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0xE9;
}
if (configuration.getIncludeVolumeDec())
{
// USAGE (Volume Decrement)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x09;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0xEA;
}
if (configuration.getIncludeVolumeMute())
{
// USAGE (Mute)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x09;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0xE2;
}
// INPUT (Data,Var,Abs)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x81;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x02;
}
if (specialButtonPaddingBits > 0)
{
// REPORT_SIZE (1)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x75;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x01;
// REPORT_COUNT (# of padding bits)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x95;
tempHidReportDescriptor[hidReportDescriptorSize++] = specialButtonPaddingBits;
// INPUT (Const,Var,Abs)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x81;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x03;
} // Padding Bits Needed
} // Special Buttons
#ifdef USE_TRIGGERS
// Add 2 Trigger buttons
// TriggerButtonsDescription[3] = configuration.getButtonCount()+1;
// TriggerButtonsDescription[5] = configuration.getButtonCount()+2;
// Serial.printf("Adding %d bytes for triggers\n", sizeof(TriggerButtonsDescription));
memcpy(tempHidReportDescriptor+hidReportDescriptorSize, TriggerButtonsDescription, sizeof(TriggerButtonsDescription));
hidReportDescriptorSize += sizeof(TriggerButtonsDescription);
#endif
if (configuration.getAxisCount() > 0)
{
// USAGE_PAGE (Generic Desktop)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x05;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x01;
// USAGE (Pointer)
// tempHidReportDescriptor[hidReportDescriptorSize++] = 0x09;
// tempHidReportDescriptor[hidReportDescriptorSize++] = 0x01;
// LOGICAL_MINIMUM (-32767)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x16;
tempHidReportDescriptor[hidReportDescriptorSize++] = lowByte(configuration.getAxesMin());
tempHidReportDescriptor[hidReportDescriptorSize++] = highByte(configuration.getAxesMin());
//tempHidReportDescriptor[hidReportDescriptorSize++] = 0x00; // Use these two lines for 0 min
//tempHidReportDescriptor[hidReportDescriptorSize++] = 0x00;
//tempHidReportDescriptor[hidReportDescriptorSize++] = 0x01; // Use these two lines for -32767 min
//tempHidReportDescriptor[hidReportDescriptorSize++] = 0x80;
// LOGICAL_MAXIMUM (+32767)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x26;
tempHidReportDescriptor[hidReportDescriptorSize++] = lowByte(configuration.getAxesMax());
tempHidReportDescriptor[hidReportDescriptorSize++] = highByte(configuration.getAxesMax());
//tempHidReportDescriptor[hidReportDescriptorSize++] = 0xFF; // Use these two lines for 255 max
//tempHidReportDescriptor[hidReportDescriptorSize++] = 0x00;
//tempHidReportDescriptor[hidReportDescriptorSize++] = 0xFF; // Use these two lines for +32767 max
//tempHidReportDescriptor[hidReportDescriptorSize++] = 0x7F;
// Physical minimum
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x36;
tempHidReportDescriptor[hidReportDescriptorSize++] = lowByte(-32768);
tempHidReportDescriptor[hidReportDescriptorSize++] = highByte(-32767);
// Physical maximum
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x46;
tempHidReportDescriptor[hidReportDescriptorSize++] = lowByte(32768);
tempHidReportDescriptor[hidReportDescriptorSize++] = highByte(32767);
// REPORT_SIZE (16)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x75;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x10;
int InputSize;
InputSize = (configuration.getIncludeXAxis()?1:0) + (configuration.getIncludeYAxis()?1:0);
if (InputSize)
{
// USAGE (Pointer)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x09;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x01;
// COLLECTION (Physical)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0xA1;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x00;
// REPORT_COUNT (configuration.getAxisCount())
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x95;
tempHidReportDescriptor[hidReportDescriptorSize++] = InputSize;
if (configuration.getIncludeXAxis())
{
// USAGE (X)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x09;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x30;
}
if (configuration.getIncludeYAxis())
{
// USAGE (Y)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x09;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x31;
}
// INPUT (Data,Var,Abs)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x81;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x02;
// END_COLLECTION (Physical)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0xc0;
}
// COLLECTION (Physical)
InputSize = (configuration.getIncludeZAxis()?1:0) + (configuration.getIncludeRzAxis()?1:0);
if (InputSize)
{
// USAGE (Pointer)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x09;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x01;
// COLLECTION (Physical)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0xA1;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x00;
// REPORT_COUNT (configuration.getAxisCount())
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x95;
tempHidReportDescriptor[hidReportDescriptorSize++] = InputSize;
if (configuration.getIncludeZAxis())
{
// USAGE (Z)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x09;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x32;
InputSize++;
}
if (configuration.getIncludeRzAxis())
{
// USAGE (Rz)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x09;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x35;
InputSize++;
}
// INPUT (Data,Var,Abs)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x81;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x02;
// END_COLLECTION (Physical)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0xc0;
}
InputSize = (configuration.getIncludeRxAxis()?1:0) + (configuration.getIncludeRyAxis()?1:0);
if (InputSize)
{
// USAGE (Pointer)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x09;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x01;
// COLLECTION (Physical)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0xA1;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x00;
// REPORT_COUNT (configuration.getAxisCount())
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x95;
tempHidReportDescriptor[hidReportDescriptorSize++] = InputSize;
if (configuration.getIncludeRxAxis())
{
// USAGE (Rx)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x09;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x33;
InputSize++;
}
if (configuration.getIncludeRyAxis())
{
// USAGE (Ry)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x09;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x34;
InputSize++;
}
// INPUT (Data,Var,Abs)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x81;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x02;
// END_COLLECTION (Physical)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0xc0;
}
InputSize = (configuration.getIncludeSlider1()?1:0) + (configuration.getIncludeSlider2()?1:0);
if (InputSize)
{
// COLLECTION (Physical)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0xA1;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x00;
// REPORT_COUNT (configuration.getAxisCount())
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x95;
tempHidReportDescriptor[hidReportDescriptorSize++] = InputSize;
if (configuration.getIncludeSlider1())
{
// USAGE (Slider)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x09;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x36;
InputSize++;
}
if (configuration.getIncludeSlider2())
{
// USAGE (Slider)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x09;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x36;
InputSize++;
}
// INPUT (Data,Var,Abs)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x81;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x02;
// END_COLLECTION (Physical)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0xc0;
}
} // X, Y, Z, Rx, Ry, and Rz Axis
if (configuration.getSimulationCount() > 0)
{
// USAGE_PAGE (Simulation Controls)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x05;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x02;
// LOGICAL_MINIMUM (-32767)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x16;
tempHidReportDescriptor[hidReportDescriptorSize++] = lowByte(configuration.getSimulationMin());
tempHidReportDescriptor[hidReportDescriptorSize++] = highByte(configuration.getSimulationMin());
//tempHidReportDescriptor[hidReportDescriptorSize++] = 0x00; // Use these two lines for 0 min
//tempHidReportDescriptor[hidReportDescriptorSize++] = 0x00;
//tempHidReportDescriptor[hidReportDescriptorSize++] = 0x01; // Use these two lines for -32767 min
//tempHidReportDescriptor[hidReportDescriptorSize++] = 0x80;
// LOGICAL_MAXIMUM (+32767)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x26;
tempHidReportDescriptor[hidReportDescriptorSize++] = lowByte(configuration.getSimulationMax());
tempHidReportDescriptor[hidReportDescriptorSize++] = highByte(configuration.getSimulationMax());
//tempHidReportDescriptor[hidReportDescriptorSize++] = 0xFF; // Use these two lines for 255 max
//tempHidReportDescriptor[hidReportDescriptorSize++] = 0x00;
//tempHidReportDescriptor[hidReportDescriptorSize++] = 0xFF; // Use these two lines for +32767 max
//tempHidReportDescriptor[hidReportDescriptorSize++] = 0x7F;
// REPORT_SIZE (16)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x75;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x10;
// REPORT_COUNT (configuration.getSimulationCount())
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x95;
tempHidReportDescriptor[hidReportDescriptorSize++] = configuration.getSimulationCount();
// COLLECTION (Physical)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0xA1;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x00;
if (configuration.getIncludeRudder())
{
// USAGE (Rudder)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x09;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0xBA;
}
if (configuration.getIncludeThrottle())
{
// USAGE (Throttle)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x09;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0xBB;
}
if (configuration.getIncludeAccelerator())
{
// USAGE (Accelerator)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x09;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0xC4;
}
if (configuration.getIncludeBrake())
{
// USAGE (Brake)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x09;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0xC5;
}
if (configuration.getIncludeSteering())
{
// USAGE (Steering)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x09;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0xC8;
}
// INPUT (Data,Var,Abs)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x81;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x02;
// END_COLLECTION (Physical)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0xc0;
} // Simulation Controls
if (configuration.getHatSwitchCount() > 0)
{
// COLLECTION (Physical)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0xA1;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x00;
// USAGE_PAGE (Generic Desktop)
tempHidReportDescriptor[hidReportDescriptorSize++] = USAGE_PAGE(1);
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x01;
// USAGE (Hat Switch)
for (int currentHatIndex = 0; currentHatIndex < configuration.getHatSwitchCount(); currentHatIndex++)
{
tempHidReportDescriptor[hidReportDescriptorSize++] = USAGE(1);
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x39;
}
// Logical Min (1)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x15;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x01;
// Logical Max (8)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x25;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x08;
// Physical Min (0)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x35;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x00;
// Physical Max (315)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x46;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x3B;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x01;
// Unit (SI Rot : Ang Pos)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x65;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x12;
// Report Size (8)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x75;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x08;
// Report Count (4)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x95;
tempHidReportDescriptor[hidReportDescriptorSize++] = configuration.getHatSwitchCount();
// Input (Data, Variable, Absolute)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x81;
tempHidReportDescriptor[hidReportDescriptorSize++] = 0x42;
// END_COLLECTION (Physical)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0xc0;
}
// Add output report
int OutRepSize = sizeof(OutputReport);
memcpy(tempHidReportDescriptor+hidReportDescriptorSize, OutputReport, OutRepSize);
hidReportDescriptorSize += OutRepSize;
// END_COLLECTION (Application)
tempHidReportDescriptor[hidReportDescriptorSize++] = 0xc0;
if (hidReportDescriptorSize>MAX_REPORT_DESCRIPTOR_BYTES)
Serial.println("ERROR: Gamepad report descriptor is too long!");
Serial.printf("Gamepad HID descriptor size: %d\n", hidReportDescriptorSize);
for (int i=0; i<hidReportDescriptorSize; i++)
Serial.printf("%02x ", tempHidReportDescriptor[i]);
Serial.println();
}
void GamepadHIDSub::setAxes(int16_t x, int16_t y, int16_t z, int16_t rZ, int16_t rX, int16_t rY, int16_t slider1, int16_t slider2)
{
if (x == -32768)
{
x = -32767;
}
if (y == -32768)
{
y = -32767;
}
if (z == -32768)
{
z = -32767;
}
if (rZ == -32768)
{
rZ = -32767;
}
if (rX == -32768)
{
rX = -32767;
}
if (rY == -32768)
{
rY = -32767;
}
if (slider1 == -32768)
{
slider1 = -32767;
}
if (slider2 == -32768)
{
slider2 = -32767;
}
_x = x;
_y = y;
_z = z;
_rZ = rZ;
_rX = rX;
_rY = rY;
_slider1 = slider1;
_slider2 = slider2;
if (configuration.getAutoReport())
{
sendReport();
}
}
void GamepadHIDSub::setSimulationControls(int16_t rudder, int16_t throttle, int16_t accelerator, int16_t brake, int16_t steering)
{
if (rudder == -32768)
{
rudder = -32767;
}
if (throttle == -32768)
{
throttle = -32767;
}
if (accelerator == -32768)
{
accelerator = -32767;
}
if (brake == -32768)
{
brake = -32767;
}
if (steering == -32768)
{
steering = -32767;
}
_rudder = rudder;
_throttle = throttle;
_accelerator = accelerator;
_brake = brake;
_steering = steering;
if (configuration.getAutoReport())
{
sendReport();
}
}
void GamepadHIDSub::setHats(signed char hat1, signed char hat2, signed char hat3, signed char hat4)
{
_hat1 = hat1;
_hat2 = hat2;
_hat3 = hat3;
_hat4 = hat4;
if (configuration.getAutoReport())
{
sendReport();
}
}
void GamepadHIDSub::setSliders(int16_t slider1, int16_t slider2)
{
if (slider1 == -32768)
{
slider1 = -32767;
}
if (slider2 == -32768)
{
slider2 = -32767;
}
_slider1 = slider1;
_slider2 = slider2;
if (configuration.getAutoReport())
{
sendReport();
}
}
void GamepadHIDSub::sendReport(void)
{
if (IsConnected())
{
uint8_t currentReportIndex = 0;
uint8_t m[reportSize];
memset(&m, 0, sizeof(m));
memcpy(&m, &_buttons, sizeof(_buttons));
currentReportIndex += numOfButtonBytes;
if (configuration.getTotalSpecialButtonCount() > 0)
{
m[currentReportIndex++] = _specialButtons;
}
#ifdef USE_TRIGGERS
// 2 Trigger buttons
// Serial.printf("Adding %d bytes to report for triggers\n", numOfTriggerBytes);
for (int i=0; i<numOfTriggerBytes; i++)
m[currentReportIndex++] = TriggerButtons[i];
#else
currentReportIndex += numOfTriggerBytes;
#endif
// Axes
if (configuration.getIncludeXAxis())
{
m[currentReportIndex++] = _x;
m[currentReportIndex++] = (_x >> 8);
}
if (configuration.getIncludeYAxis())
{
m[currentReportIndex++] = _y;
m[currentReportIndex++] = (_y >> 8);
}
if (configuration.getIncludeZAxis())
{
m[currentReportIndex++] = _z;
m[currentReportIndex++] = (_z >> 8);
}
if (configuration.getIncludeRzAxis())
{
m[currentReportIndex++] = _rZ;
m[currentReportIndex++] = (_rZ >> 8);
}
if (configuration.getIncludeRxAxis())
{
m[currentReportIndex++] = _rX;
m[currentReportIndex++] = (_rX >> 8);
}
if (configuration.getIncludeRyAxis())
{
m[currentReportIndex++] = _rY;
m[currentReportIndex++] = (_rY >> 8);
}
if (configuration.getIncludeSlider1())
{
m[currentReportIndex++] = _slider1;
m[currentReportIndex++] = (_slider1 >> 8);
}
if (configuration.getIncludeSlider2())
{
m[currentReportIndex++] = _slider2;
m[currentReportIndex++] = (_slider2 >> 8);
}
if (configuration.getIncludeRudder())
{
m[currentReportIndex++] = _rudder;
m[currentReportIndex++] = (_rudder >> 8);
}
if (configuration.getIncludeThrottle())
{
m[currentReportIndex++] = _throttle;
m[currentReportIndex++] = (_throttle >> 8);
}
if (configuration.getIncludeAccelerator())
{
m[currentReportIndex++] = _accelerator;
m[currentReportIndex++] = (_accelerator >> 8);
}
if (configuration.getIncludeBrake())
{
m[currentReportIndex++] = _brake;
m[currentReportIndex++] = (_brake >> 8);
}
if (configuration.getIncludeSteering())
{
m[currentReportIndex++] = _steering;
m[currentReportIndex++] = (_steering >> 8);
}
if (configuration.getHatSwitchCount() > 0)
{
signed char hats[4];
hats[0] = _hat1;
hats[1] = _hat2;
hats[2] = _hat3;
hats[3] = _hat4;
for (int currentHatIndex = configuration.getHatSwitchCount() - 1; currentHatIndex >= 0; currentHatIndex--)
{
m[currentReportIndex++] = hats[currentHatIndex];
}
}
SendReport(m, sizeof(m), 0);
}
}
void GamepadHIDSub::press(uint8_t b)
{
uint8_t index = (b - 1) / 8;
uint8_t bit = (b - 1) % 8;
uint8_t bitmask = (1 << bit);
uint8_t result = _buttons[index] | bitmask;
if (result != _buttons[index])
{
_buttons[index] = result;
}
if (configuration.getAutoReport())
{
sendReport();
}
}
void GamepadHIDSub::release(uint8_t b)
{
uint8_t index = (b - 1) / 8;
uint8_t bit = (b - 1) % 8;
uint8_t bitmask = (1 << bit);
uint64_t result = _buttons[index] & ~bitmask;
if (result != _buttons[index])
{
_buttons[index] = result;
}
if (configuration.getAutoReport())
{
sendReport();
}
}
uint8_t GamepadHIDSub::specialButtonBitPosition(uint8_t b)
{
if (b >= POSSIBLESPECIALBUTTONS)
throw std::invalid_argument("Index out of range");
uint8_t bit = 0;
for (int i = 0; i < b; i++)
{
if (configuration.getWhichSpecialButtons()[i])
bit++;
}
return bit;
}
void GamepadHIDSub::pressSpecialButton(uint8_t b)
{
uint8_t button = specialButtonBitPosition(b);
uint8_t bit = button % 8;
uint8_t bitmask = (1 << bit);
uint64_t result = _specialButtons | bitmask;
if (result != _specialButtons)
{
_specialButtons = result;
}