MickGyver
3 years ago
6 changed files with 411 additions and 3 deletions
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/* Gamepad.cpp
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*
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* Based on the advanced HID library for Arduino:
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* https://github.com/NicoHood/HID
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* Copyright (c) 2014-2015 NicoHood |
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*
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* Copyright (c) 2020 Mikael Norrgård <http://daemonbite.com>
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* |
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* GNU GENERAL PUBLIC LICENSE |
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* Version 3, 29 June 2007 |
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*
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation, either version 3 of the License, or |
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* (at your option) any later version. |
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*
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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*
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* You should have received a copy of the GNU General Public License |
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*
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*/ |
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#include "Gamepad.h" |
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static const uint8_t _hidReportDescriptor[] PROGMEM = { |
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0x05, 0x01, // USAGE_PAGE (Generic Desktop)
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0x09, 0x04, // USAGE (Joystick) (Maybe change to gamepad? I don't think so but...)
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0xa1, 0x01, // COLLECTION (Application)
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0xa1, 0x00, // COLLECTION (Physical)
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0x05, 0x09, // USAGE_PAGE (Button)
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0x19, 0x01, // USAGE_MINIMUM (Button 1)
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0x29, 0x04, // USAGE_MAXIMUM (Button 4)
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0x15, 0x00, // LOGICAL_MINIMUM (0)
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0x25, 0x01, // LOGICAL_MAXIMUM (1)
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0x95, 0x04, // REPORT_COUNT (4)
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0x75, 0x01, // REPORT_SIZE (1)
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0x81, 0x02, // INPUT (Data,Var,Abs)
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0x95, 0x01, // REPORT_COUNT (1) ; pad out the bits into a number divisible by 8
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0x75, 0x04, // REPORT_SIZE (4)
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0x81, 0x03, // INPUT (Const,Var,Abs)
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0x05, 0x01, // USAGE_PAGE (Generic Desktop)
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0x09, 0x01, // USAGE (pointer)
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0xa1, 0x00, // COLLECTION (Physical)
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0x09, 0x30, // USAGE (X)
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0x09, 0x31, // USAGE (Y)
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0x15, 0xff, // LOGICAL_MINIMUM (-1)
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0x25, 0x01, // LOGICAL_MAXIMUM (1)
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0x95, 0x02, // REPORT_COUNT (2)
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0x75, 0x08, // REPORT_SIZE (8)
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0x81, 0x02, // INPUT (Data,Var,Abs)
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0xc0, // END_COLLECTION
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0xc0, // END_COLLECTION
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0xc0, // END_COLLECTION
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}; |
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Gamepad_::Gamepad_(void) : PluggableUSBModule(1, 1, epType), protocol(HID_REPORT_PROTOCOL), idle(1) |
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{ |
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epType[0] = EP_TYPE_INTERRUPT_IN; |
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PluggableUSB().plug(this); |
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} |
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int Gamepad_::getInterface(uint8_t* interfaceCount) |
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{ |
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*interfaceCount += 1; // uses 1
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HIDDescriptor hidInterface = { |
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D_INTERFACE(pluggedInterface, 1, USB_DEVICE_CLASS_HUMAN_INTERFACE, HID_SUBCLASS_NONE, HID_PROTOCOL_NONE), |
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D_HIDREPORT(sizeof(_hidReportDescriptor)), |
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D_ENDPOINT(USB_ENDPOINT_IN(pluggedEndpoint), USB_ENDPOINT_TYPE_INTERRUPT, USB_EP_SIZE, 0x01) |
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}; |
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return USB_SendControl(0, &hidInterface, sizeof(hidInterface)); |
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} |
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int Gamepad_::getDescriptor(USBSetup& setup) |
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{ |
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// Check if this is a HID Class Descriptor request
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if (setup.bmRequestType != REQUEST_DEVICETOHOST_STANDARD_INTERFACE) { return 0; } |
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if (setup.wValueH != HID_REPORT_DESCRIPTOR_TYPE) { return 0; } |
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// In a HID Class Descriptor wIndex cointains the interface number
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if (setup.wIndex != pluggedInterface) { return 0; } |
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// Reset the protocol on reenumeration. Normally the host should not assume the state of the protocol
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// due to the USB specs, but Windows and Linux just assumes its in report mode.
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protocol = HID_REPORT_PROTOCOL; |
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return USB_SendControl(TRANSFER_PGM, _hidReportDescriptor, sizeof(_hidReportDescriptor)); |
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} |
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bool Gamepad_::setup(USBSetup& setup) |
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{ |
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if (pluggedInterface != setup.wIndex) { |
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return false; |
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} |
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uint8_t request = setup.bRequest; |
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uint8_t requestType = setup.bmRequestType; |
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if (requestType == REQUEST_DEVICETOHOST_CLASS_INTERFACE) |
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{ |
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if (request == HID_GET_REPORT) { |
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// TODO: HID_GetReport();
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return true; |
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} |
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if (request == HID_GET_PROTOCOL) { |
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// TODO: Send8(protocol);
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return true; |
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} |
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} |
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if (requestType == REQUEST_HOSTTODEVICE_CLASS_INTERFACE) |
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{ |
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if (request == HID_SET_PROTOCOL) { |
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protocol = setup.wValueL; |
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return true; |
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} |
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if (request == HID_SET_IDLE) { |
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idle = setup.wValueL; |
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return true; |
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} |
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if (request == HID_SET_REPORT) |
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{ |
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} |
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} |
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return false; |
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} |
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void Gamepad_::reset() |
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{ |
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_GamepadReport.X = 0; |
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_GamepadReport.Y = 0; |
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_GamepadReport.buttons = 0; |
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this->send(); |
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} |
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void Gamepad_::send()
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{ |
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USB_Send(pluggedEndpoint | TRANSFER_RELEASE, &_GamepadReport, sizeof(GamepadReport)); |
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} |
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uint8_t Gamepad_::getShortName(char *name) |
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{ |
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if(!next)
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{ |
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strcpy(name, gp_serial); |
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return strlen(name); |
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} |
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return 0; |
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} |
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/* Gamepad.h
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*
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* Based on the advanced HID library for Arduino:
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* https://github.com/NicoHood/HID
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* Copyright (c) 2014-2015 NicoHood |
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*
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* Copyright (c) 2020 Mikael Norrgård <http://daemonbite.com>
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* |
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* GNU GENERAL PUBLIC LICENSE |
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* Version 3, 29 June 2007 |
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*
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation, either version 3 of the License, or |
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* (at your option) any later version. |
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*
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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*
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* You should have received a copy of the GNU General Public License |
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*
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*/ |
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#pragma once |
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#include <Arduino.h> |
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#include "HID.h" |
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extern const char* gp_serial; |
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// The numbers after colon are bit fields, meaning how many bits the field uses.
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// Remove those if there are problems
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typedef struct { |
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uint8_t buttons : 4; |
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int8_t X; |
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int8_t Y;
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} GamepadReport; |
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class Gamepad_ : public PluggableUSBModule |
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{
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private: |
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uint8_t reportId; |
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protected: |
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int getInterface(uint8_t* interfaceCount); |
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int getDescriptor(USBSetup& setup); |
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uint8_t getShortName(char *name); |
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bool setup(USBSetup& setup); |
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uint8_t epType[1]; |
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uint8_t protocol; |
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uint8_t idle; |
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public: |
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GamepadReport _GamepadReport; |
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Gamepad_(void); |
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void reset(void); |
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void send(); |
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}; |
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/* DaemonBite PC Engine / TurboGrafx-16 controllers to USB Adapter
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* Author: Mikael Norrgård <mick@daemonbite.com> |
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* |
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* Copyright (c) 2020 Mikael Norrgård <http://daemonbite.com>
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*
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* GNU GENERAL PUBLIC LICENSE |
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* Version 3, 29 June 2007 |
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*
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation, either version 3 of the License, or |
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* (at your option) any later version. |
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*
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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*
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* You should have received a copy of the GNU General Public License |
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*
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*/ |
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#include "Gamepad.h" |
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#define GAMEPAD_COUNT 2 // Set to 1 or 2 depending if you want to make a 1 or 2 port adapter
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#define SELECT_PAUSE 20 // How many microseconds to wait after setting select/enable lines?
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#define FRAME_TIME 16667 // The time of one "frame" in µs (used for turbo functionality)
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#define UP 0x01 |
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#define DOWN 0x04 |
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#define LEFT 0x08 |
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#define RIGHT 0x02 |
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#define UP_SH 0 |
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#define DOWN_SH 2 |
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#define LEFT_SH 3 |
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#define RIGHT_SH 1 |
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// ATT: 20 chars max (including NULL at the end) according to Arduino source code.
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// Additionally serial number is used to differentiate arduino projects to have different button maps!
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const char *gp_serial = "PC Engine to USB"; |
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/* -------------------------------------------------------------------------
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PC Engine / TurboGrafx-16 controller wiring |
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PC Engine (P1) Arduino Pro Micro |
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-------------------------------------- |
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1 VCC VCC |
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2 UP/I 3 PD0 |
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3 RIGHT/II 2 PD1 |
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4 DOWN/SELECT RXI PD2 |
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5 LEFT/START TXO PD3 |
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6 DSELECT 15 PB1 (Shared with P2) |
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7 ENABLE 14 PB3 (Shared with P2) |
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8 GND GND |
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PC Engine (P2) Arduino Pro Micro |
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-------------------------------------- |
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1 VCC VCC |
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2 UP/I A3 PF4 |
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3 RIGHT/II A2 PF5 |
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4 DOWN/SELECT A1 PF6 |
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5 LEFT/START A0 PF7 |
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6 DSELECT 15 PB1 (Shared with P1) |
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7 ENABLE 14 PB3 (Shared with P1) |
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8 GND GND |
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------------------------------------------------------------------------- */ |
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// Set up USB HID gamepads
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Gamepad_ Gamepad[GAMEPAD_COUNT]; |
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// Controllers
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uint8_t buttons[2][2] = {{0,0},{0,0}}; |
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uint8_t buttonsPrev[2][2] = {{0,0},{0,0}}; |
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uint8_t gp = 0; |
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// Turbo timing
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uint32_t microsNow = 0; |
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uint32_t microsEnable = 0; |
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void setup() |
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{
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// Set D0-D3 as inputs and enable pull-up resistors (port1 data pins)
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DDRD &= ~B00001111; |
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PORTD |= B00001111; |
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// Set F4-F7 as inputs and enable pull-up resistors (port2 data pins)
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DDRF &= ~B11110000; |
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PORTF |= B11110000; |
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// Set B1 and B3 as outputs and set them LOW
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PORTB &= ~B00001010; |
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DDRB |= B00001010; |
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// Wait for the controller(s) to settle
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delay(100); |
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} |
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void loop() { while(1) |
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{ |
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// Handle clock for turbo functionality
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microsNow = micros(); |
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if((microsNow-microsEnable) >= FRAME_TIME)
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{ |
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PORTB |= B00001000; // Set enable pin HIGH to increase clock for turbo
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delayMicroseconds(SELECT_PAUSE); // Wait a while...
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PORTB &= ~B00001000; // Set enable pin LOW again
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microsEnable = microsNow; |
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} |
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// Clear button data
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buttons[0][0]=0; buttons[0][1]=0; |
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buttons[1][0]=0; buttons[1][1]=0; |
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// Read all button and axes states
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PORTB |= B00000010; // Set SELECT pin HIGH
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delayMicroseconds(SELECT_PAUSE); // Wait a while...
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buttons[0][0] = PIND & B00001111; // Read DPAD for controller 1
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if(GAMEPAD_COUNT==2) |
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buttons[1][0] = (PINF & B11110000) >> 4; // Read DPAD for controller 2
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PORTB &= ~B00000010; // Set SELECT pin LOW
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delayMicroseconds(SELECT_PAUSE); // Wait a while...
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buttons[0][1] = PIND & B00001111; // Read buttons for controller 1
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if(GAMEPAD_COUNT==2) |
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buttons[1][1] = (PINF & B11110000) >> 4; // Read buttons for controller 2
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// Invert the readings so a 1 means a pressed button
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buttons[0][0] = ~buttons[0][0]; buttons[0][1] = ~buttons[0][1]; |
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buttons[1][0] = ~buttons[1][0]; buttons[1][1] = ~buttons[1][1]; |
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// Send data to USB if values have changed
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for(gp=0; gp<GAMEPAD_COUNT; gp++) |
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{ |
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// Has any buttons changed state?
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if (buttons[gp][0] != buttonsPrev[gp][0] || buttons[gp][1] != buttonsPrev[gp][1] ) |
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{ |
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Gamepad[gp]._GamepadReport.buttons = buttons[gp][1]; |
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Gamepad[gp]._GamepadReport.Y = ((buttons[gp][0] & DOWN) >> DOWN_SH) - ((buttons[gp][0] & UP) >> UP_SH); |
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Gamepad[gp]._GamepadReport.X = ((buttons[gp][0] & RIGHT) >> RIGHT_SH) - ((buttons[gp][0] & LEFT) >> LEFT_SH); |
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buttonsPrev[gp][0] = buttons[gp][0]; |
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buttonsPrev[gp][1] = buttons[gp][1]; |
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Gamepad[gp].send(); |
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} |
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} |
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}} |
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# DaemonBite PC Engine / TurboGrafx-16 Controllers To USB Adapter |
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## Introduction |
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This is a simple to build adapter for connecting PC Engine / TurboGrafx-16 controllers to USB. |
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NOTE: This adapter is in BETA and not yet properly tested. |
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The input lag for this adapter is minimal (should be less 1ms average connected to MiSTer). |
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## Parts you need |
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- Arduino Pro Micro (ATMega32U4) |
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- Female connector end of controller extension cable or... |
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- Female DIN 8-pin and/or Female Mini-DIN 8-pin connector |
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- Micro USB cable |
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## Wiring |
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| PC Engine (P1) | Arduino Pro Micro | |
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| ------ | ------ | |
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| 1 VCC | VCC | |
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| 2 UP/I | 3 PD0 | |
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| 3 RIGHT/II | 2 PD1 | |
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| 4 DOWN/SELECT | RXI PD2 | |
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| 5 LEFT/START | TXO PD3 | |
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| 6 DSELECT | 15 PB1 (Shared with P2) | |
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| 7 ENABLE | 14 PB3 (Shared with P2) | |
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| 8 GND | GND | |
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| PC Engine (P2) | Arduino Pro Micro | |
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| ------ | ------ | |
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| 1 VCC | VCC | |
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| 2 UP/I | A3 PF4 | |
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| 3 RIGHT/II | A2 PF5 | |
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| 4 DOWN/SELECT | A1 PF6 | |
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| 5 LEFT/START | A0 PF7 | |
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| 6 DSELECT | 15 PB1 (Shared with P1) | |
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| 7 ENABLE | 14 PB3 (Shared with P1) | |
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| 8 GND | GND | |
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## License |
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This project is licensed under the GNU General Public License v3.0. |
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