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USB_Host_Shield_2.0/XBOXRECV.cpp

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/* Copyright (C) 2012 Kristian Lauszus, TKJ Electronics. All rights reserved.
This software may be distributed and modified under the terms of the GNU
General Public License version 2 (GPL2) as published by the Free Software
Foundation and appearing in the file GPL2.TXT included in the packaging of
this file. Please note that GPL2 Section 2[b] requires that all works based
on this software must also be made publicly available under the terms of
the GPL2 ("Copyleft").
Contact information
-------------------
Kristian Lauszus, TKJ Electronics
Web : http://www.tkjelectronics.com
e-mail : kristianl@tkjelectronics.com
getBatteryLevel and checkStatus functions made by timstamp.co.uk found using BusHound from Perisoft.net
*/
#include "XBOXRECV.h"
#define DEBUG // Uncomment to print data for debugging
//#define EXTRADEBUG // Uncomment to get even more debugging data
//#define PRINTREPORT // Uncomment to print the report send by the Xbox 360 Controller
XBOXRECV::XBOXRECV(USB *p) :
pUsb(p), // pointer to USB class instance - mandatory
bAddress(0), // device address - mandatory
bPollEnable(false) { // don't start polling before dongle is connected
for (uint8_t i = 0; i < XBOX_MAX_ENDPOINTS; i++) {
epInfo[i].epAddr = 0;
epInfo[i].maxPktSize = (i) ? 0 : 8;
epInfo[i].epAttribs = 0;
epInfo[i].bmNakPower = (i) ? USB_NAK_NOWAIT : USB_NAK_MAX_POWER;
}
if (pUsb) // register in USB subsystem
pUsb->RegisterDeviceClass(this); //set devConfig[] entry
}
uint8_t XBOXRECV::Init(uint8_t parent, uint8_t port, bool lowspeed) {
uint8_t buf[sizeof (USB_DEVICE_DESCRIPTOR)];
uint8_t rcode;
UsbDevice *p = NULL;
EpInfo *oldep_ptr = NULL;
uint16_t PID;
uint16_t VID;
// get memory address of USB device address pool
AddressPool &addrPool = pUsb->GetAddressPool();
#ifdef EXTRADEBUG
Notify(PSTR("\r\nXBOXRECV Init"), 0x80);
#endif
// check if address has already been assigned to an instance
if (bAddress) {
#ifdef DEBUG
Notify(PSTR("\r\nAddress in use"), 0x80);
#endif
return USB_ERROR_CLASS_INSTANCE_ALREADY_IN_USE;
}
// Get pointer to pseudo device with address 0 assigned
p = addrPool.GetUsbDevicePtr(0);
if (!p) {
#ifdef DEBUG
Notify(PSTR("\r\nAddress not found"), 0x80);
#endif
return USB_ERROR_ADDRESS_NOT_FOUND_IN_POOL;
}
if (!p->epinfo) {
#ifdef DEBUG
Notify(PSTR("\r\nepinfo is null"), 0x80);
#endif
return USB_ERROR_EPINFO_IS_NULL;
}
// Save old pointer to EP_RECORD of address 0
oldep_ptr = p->epinfo;
// Temporary assign new pointer to epInfo to p->epinfo in order to avoid toggle inconsistence
p->epinfo = epInfo;
p->lowspeed = lowspeed;
// Get device descriptor
rcode = pUsb->getDevDescr(0, 0, sizeof (USB_DEVICE_DESCRIPTOR), (uint8_t*)buf); // Get device descriptor - addr, ep, nbytes, data
// Restore p->epinfo
p->epinfo = oldep_ptr;
if (rcode)
goto FailGetDevDescr;
VID = ((USB_DEVICE_DESCRIPTOR*)buf)->idVendor;
PID = ((USB_DEVICE_DESCRIPTOR*)buf)->idProduct;
if (VID != XBOX_VID && VID != MADCATZ_VID) // We just check if it's a xbox receiver using the Vendor ID
goto FailUnknownDevice;
else if (PID != XBOX_WIRELESS_RECEIVER_PID && PID != XBOX_WIRELESS_RECEIVER_THIRD_PARTY_PID) {
#ifdef DEBUG
Notify(PSTR("\r\nYou'll need a wireless receiver for this libary to work"), 0x80);
#endif
goto FailUnknownDevice;
}
// Allocate new address according to device class
bAddress = addrPool.AllocAddress(parent, false, port);
if (!bAddress)
return USB_ERROR_OUT_OF_ADDRESS_SPACE_IN_POOL;
// Extract Max Packet Size from device descriptor
epInfo[0].maxPktSize = (uint8_t)((USB_DEVICE_DESCRIPTOR*)buf)->bMaxPacketSize0;
// Assign new address to the device
rcode = pUsb->setAddr(0, 0, bAddress);
if (rcode) {
p->lowspeed = false;
addrPool.FreeAddress(bAddress);
bAddress = 0;
#ifdef DEBUG
Notify(PSTR("\r\nsetAddr: "), 0x80);
#endif
PrintHex<uint8_t > (rcode, 0x80);
return rcode;
}
#ifdef EXTRADEBUG
Notify(PSTR("\r\nAddr: "), 0x80);
PrintHex<uint8_t > (bAddress, 0x80);
#endif
p->lowspeed = false;
//get pointer to assigned address record
p = addrPool.GetUsbDevicePtr(bAddress);
if (!p)
return USB_ERROR_ADDRESS_NOT_FOUND_IN_POOL;
p->lowspeed = lowspeed;
// Assign epInfo to epinfo pointer - only EP0 is known
rcode = pUsb->setEpInfoEntry(bAddress, 1, epInfo);
if (rcode)
goto FailSetDevTblEntry;
/* The application will work in reduced host mode, so we can save program and data
memory space. After verifying the VID we will use known values for the
configuration values for device, interface, endpoints and HID for the XBOX360 Wireless receiver */
/* Initialize data structures for endpoints of device */
epInfo[ XBOX_INPUT_PIPE_1 ].epAddr = 0x01; // XBOX 360 report endpoint - poll interval 1ms
epInfo[ XBOX_INPUT_PIPE_1 ].epAttribs = EP_INTERRUPT;
epInfo[ XBOX_INPUT_PIPE_1 ].bmNakPower = USB_NAK_NOWAIT; // Only poll once for interrupt endpoints
epInfo[ XBOX_INPUT_PIPE_1 ].maxPktSize = EP_MAXPKTSIZE;
epInfo[ XBOX_INPUT_PIPE_1 ].bmSndToggle = bmSNDTOG0;
epInfo[ XBOX_INPUT_PIPE_1 ].bmRcvToggle = bmRCVTOG0;
epInfo[ XBOX_OUTPUT_PIPE_1 ].epAddr = 0x01; // XBOX 360 output endpoint - poll interval 8ms
epInfo[ XBOX_OUTPUT_PIPE_1 ].epAttribs = EP_INTERRUPT;
epInfo[ XBOX_OUTPUT_PIPE_1 ].bmNakPower = USB_NAK_NOWAIT; // Only poll once for interrupt endpoints
epInfo[ XBOX_OUTPUT_PIPE_1 ].maxPktSize = EP_MAXPKTSIZE;
epInfo[ XBOX_OUTPUT_PIPE_1 ].bmSndToggle = bmSNDTOG0;
epInfo[ XBOX_OUTPUT_PIPE_1 ].bmRcvToggle = bmRCVTOG0;
epInfo[ XBOX_INPUT_PIPE_2 ].epAddr = 0x03; // XBOX 360 report endpoint - poll interval 1ms
epInfo[ XBOX_INPUT_PIPE_2 ].epAttribs = EP_INTERRUPT;
epInfo[ XBOX_INPUT_PIPE_2 ].bmNakPower = USB_NAK_NOWAIT; // Only poll once for interrupt endpoints
epInfo[ XBOX_INPUT_PIPE_2 ].maxPktSize = EP_MAXPKTSIZE;
epInfo[ XBOX_INPUT_PIPE_2 ].bmSndToggle = bmSNDTOG0;
epInfo[ XBOX_INPUT_PIPE_2 ].bmRcvToggle = bmRCVTOG0;
epInfo[ XBOX_OUTPUT_PIPE_2 ].epAddr = 0x03; // XBOX 360 output endpoint - poll interval 8ms
epInfo[ XBOX_OUTPUT_PIPE_2 ].epAttribs = EP_INTERRUPT;
epInfo[ XBOX_OUTPUT_PIPE_2 ].bmNakPower = USB_NAK_NOWAIT; // Only poll once for interrupt endpoints
epInfo[ XBOX_OUTPUT_PIPE_2 ].maxPktSize = EP_MAXPKTSIZE;
epInfo[ XBOX_OUTPUT_PIPE_2 ].bmSndToggle = bmSNDTOG0;
epInfo[ XBOX_OUTPUT_PIPE_2 ].bmRcvToggle = bmRCVTOG0;
epInfo[ XBOX_INPUT_PIPE_3 ].epAddr = 0x05; // XBOX 360 report endpoint - poll interval 1ms
epInfo[ XBOX_INPUT_PIPE_3 ].epAttribs = EP_INTERRUPT;
epInfo[ XBOX_INPUT_PIPE_3 ].bmNakPower = USB_NAK_NOWAIT; // Only poll once for interrupt endpoints
epInfo[ XBOX_INPUT_PIPE_3 ].maxPktSize = EP_MAXPKTSIZE;
epInfo[ XBOX_INPUT_PIPE_3 ].bmSndToggle = bmSNDTOG0;
epInfo[ XBOX_INPUT_PIPE_3 ].bmRcvToggle = bmRCVTOG0;
epInfo[ XBOX_OUTPUT_PIPE_3 ].epAddr = 0x05; // XBOX 360 output endpoint - poll interval 8ms
epInfo[ XBOX_OUTPUT_PIPE_3 ].epAttribs = EP_INTERRUPT;
epInfo[ XBOX_OUTPUT_PIPE_3 ].bmNakPower = USB_NAK_NOWAIT; // Only poll once for interrupt endpoints
epInfo[ XBOX_OUTPUT_PIPE_3 ].maxPktSize = EP_MAXPKTSIZE;
epInfo[ XBOX_OUTPUT_PIPE_3 ].bmSndToggle = bmSNDTOG0;
epInfo[ XBOX_OUTPUT_PIPE_3 ].bmRcvToggle = bmRCVTOG0;
epInfo[ XBOX_INPUT_PIPE_4 ].epAddr = 0x07; // XBOX 360 report endpoint - poll interval 1ms
epInfo[ XBOX_INPUT_PIPE_4 ].epAttribs = EP_INTERRUPT;
epInfo[ XBOX_INPUT_PIPE_4 ].bmNakPower = USB_NAK_NOWAIT; // Only poll once for interrupt endpoints
epInfo[ XBOX_INPUT_PIPE_4 ].maxPktSize = EP_MAXPKTSIZE;
epInfo[ XBOX_INPUT_PIPE_4 ].bmSndToggle = bmSNDTOG0;
epInfo[ XBOX_INPUT_PIPE_4 ].bmRcvToggle = bmRCVTOG0;
epInfo[ XBOX_OUTPUT_PIPE_4 ].epAddr = 0x07; // XBOX 360 output endpoint - poll interval 8ms
epInfo[ XBOX_OUTPUT_PIPE_4 ].epAttribs = EP_INTERRUPT;
epInfo[ XBOX_OUTPUT_PIPE_4 ].bmNakPower = USB_NAK_NOWAIT; // Only poll once for interrupt endpoints
epInfo[ XBOX_OUTPUT_PIPE_4 ].maxPktSize = EP_MAXPKTSIZE;
epInfo[ XBOX_OUTPUT_PIPE_4 ].bmSndToggle = bmSNDTOG0;
epInfo[ XBOX_OUTPUT_PIPE_4 ].bmRcvToggle = bmRCVTOG0;
rcode = pUsb->setEpInfoEntry(bAddress, 9, epInfo);
if (rcode)
goto FailSetDevTblEntry;
delay(200); //Give time for address change
rcode = pUsb->setConf(bAddress, epInfo[ XBOX_CONTROL_PIPE ].epAddr, 1);
if (rcode)
goto FailSetConfDescr;
#ifdef DEBUG
Notify(PSTR("\r\nXbox Wireless Receiver Connected\r\n"), 0x80);
#endif
XboxReceiverConnected = true;
bPollEnable = true;
return 0; // successful configuration
/* diagnostic messages */
FailGetDevDescr:
NotifyFailGetDevDescr();
goto Fail;
FailSetDevTblEntry:
NotifyFailSetDevTblEntry();
goto Fail;
FailSetConfDescr:
NotifyFailSetConfDescr();
goto Fail;
FailUnknownDevice:
NotifyFailUnknownDevice(VID,PID);
rcode = USB_DEV_CONFIG_ERROR_DEVICE_NOT_SUPPORTED;
Fail:
#ifdef DEBUG
Notify(PSTR("\r\nXbox 360 Init Failed, error code: "), 0x80);
#endif
NotifyFail(rcode);
Release();
return rcode;
}
/* Performs a cleanup after failed Init() attempt */
uint8_t XBOXRECV::Release() {
XboxReceiverConnected = false;
for (uint8_t i = 0; i < 4; i++)
Xbox360Connected[i] = 0x00;
pUsb->GetAddressPool().FreeAddress(bAddress);
bAddress = 0;
bPollEnable = false;
return 0;
}
uint8_t XBOXRECV::Poll() {
if (!bPollEnable)
return 0;
if (!timer || ((millis() - timer) > 3000)) { // Run checkStatus every 3 seconds
timer = millis();
checkStatus();
}
uint8_t inputPipe;
uint16_t bufferSize;
for (uint8_t i = 0; i < 4; i++) {
switch (i) {
case 0: inputPipe = XBOX_INPUT_PIPE_1;
break;
case 1: inputPipe = XBOX_INPUT_PIPE_2;
break;
case 2: inputPipe = XBOX_INPUT_PIPE_3;
break;
case 3: inputPipe = XBOX_INPUT_PIPE_4;
break;
}
bufferSize = EP_MAXPKTSIZE; // This is the maximum number of bytes we want to receive
pUsb->inTransfer(bAddress, epInfo[ inputPipe ].epAddr, &bufferSize, readBuf);
if (bufferSize > 0) { // The number of received bytes
#ifdef EXTRADEBUG
Notify(PSTR("Bytes Received: "), 0x80);
Serial.print(bufferSize);
Notify(PSTR("\r\n"), 0x80);
#endif
readReport(i);
#ifdef PRINTREPORT
printReport(i, bufferSize); // Uncomment "#define PRINTREPORT" to print the report send by the Xbox 360 Controller
#endif
}
}
return 0;
}
void XBOXRECV::readReport(uint8_t controller) {
if (readBuf == NULL)
return;
// This report is send when a controller is connected and disconnected
if (readBuf[0] == 0x08 && readBuf[1] != Xbox360Connected[controller]) {
Xbox360Connected[controller] = readBuf[1];
#ifdef DEBUG
Notify(PSTR("Controller "), 0x80);
Serial.print(controller);
#endif
if (Xbox360Connected[controller]) {
#ifdef DEBUG
char* str = 0;
switch (readBuf[1]) {
case 0x80: str = PSTR(" as controller\r\n");
break;
case 0x40: str = PSTR(" as headset\r\n");
break;
case 0xC0: str = PSTR(" as controller+headset\r\n");
break;
}
Notify(PSTR(": connected"), 0x80);
Notify(str, 0x80);
#endif
LED led;
switch (controller) {
case 0: led = LED1;
break;
case 1: led = LED2;
break;
case 2: led = LED3;
break;
case 3: led = LED4;
break;
}
setLedOn(controller, led);
}
#ifdef DEBUG
else
Notify(PSTR(": disconnected\r\n"), 0x80);
#endif
return;
}
// Controller status report
if (readBuf[1] == 0x00 && readBuf[3] & 0x13 && readBuf[4] >= 0x22) {
controllerStatus[controller] = ((uint16_t)readBuf[3] << 8) | readBuf[4];
return;
}
if (readBuf[1] != 0x01) // Check if it's the correct report - the receiver also sends different status reports
return;
// A controller must be connected if it's sending data
if (!Xbox360Connected[controller])
Xbox360Connected[controller] |= 0x80;
ButtonState[controller] = (uint32_t)(readBuf[9] | ((uint16_t)readBuf[8] << 8) | ((uint32_t)readBuf[7] << 16) | ((uint32_t)readBuf[6] << 24));
hatValue[controller][LeftHatX] = (int16_t)(((uint16_t)readBuf[11] << 8) | readBuf[10]);
hatValue[controller][LeftHatY] = (int16_t)(((uint16_t)readBuf[13] << 8) | readBuf[12]);
hatValue[controller][RightHatX] = (int16_t)(((uint16_t)readBuf[15] << 8) | readBuf[14]);
hatValue[controller][RightHatY] = (int16_t)(((uint16_t)readBuf[17] << 8) | readBuf[16]);
//Notify(PSTR("\r\nButtonState: "), 0x80);
//PrintHex<uint32_t>(ButtonState[controller], 0x80);
if (ButtonState[controller] != OldButtonState[controller]) {
buttonStateChanged[controller] = true;
ButtonClickState[controller] = (ButtonState[controller] >> 16) & ((~OldButtonState[controller]) >> 16); // Update click state variable, but don't include the two trigger buttons L2 and R2
if (((uint8_t)OldButtonState[controller]) == 0 && ((uint8_t)ButtonState[controller]) != 0) // The L2 and R2 buttons are special as they are analog buttons
R2Clicked[controller] = true;
if ((uint8_t)(OldButtonState[controller] >> 8) == 0 && (uint8_t)(ButtonState[controller] >> 8) != 0)
L2Clicked[controller] = true;
OldButtonState[controller] = ButtonState[controller];
}
}
void XBOXRECV::printReport(uint8_t controller, uint8_t nBytes) { //Uncomment "#define PRINTREPORT" to print the report send by the Xbox 360 Controller
#ifdef PRINTREPORT
if (readBuf == NULL)
return;
Notify(PSTR("Controller "), 0x80);
Serial.print(controller);
Notify(PSTR(": "), 0x80);
for (uint8_t i = 0; i < nBytes; i++) {
PrintHex<uint8_t > (readBuf[i], 0x80);
Serial.print(" ");
}
Serial.println();
#endif
}
uint8_t XBOXRECV::getButtonPress(uint8_t controller, Button b) {
if (b == L2) // These are analog buttons
return (uint8_t)(ButtonState[controller] >> 8);
else if (b == R2)
return (uint8_t)ButtonState[controller];
return (ButtonState[controller] & ((uint32_t)pgm_read_word(&XBOXBUTTONS[(uint8_t)b]) << 16));
}
bool XBOXRECV::getButtonClick(uint8_t controller, Button b) {
if (b == L2) {
if (L2Clicked[controller]) {
L2Clicked[controller] = false;
return true;
}
return false;
} else if (b == R2) {
if (R2Clicked[controller]) {
R2Clicked[controller] = false;
return true;
}
return false;
}
uint16_t button = pgm_read_word(&XBOXBUTTONS[(uint8_t)b]);
bool click = (ButtonClickState[controller] & button);
ButtonClickState[controller] &= ~button; // clear "click" event
return click;
}
int16_t XBOXRECV::getAnalogHat(uint8_t controller, AnalogHat a) {
return hatValue[controller][a];
}
bool XBOXRECV::buttonChanged(uint8_t controller) {
bool state = buttonStateChanged[controller];
buttonStateChanged[controller] = false;
return state;
}
/*
ControllerStatus Breakdown
ControllerStatus[controller] & 0x0001 // 0
ControllerStatus[controller] & 0x0002 // normal batteries, no rechargeable battery pack
ControllerStatus[controller] & 0x0004 // controller starting up / settling
ControllerStatus[controller] & 0x0008 // headset adapter plugged in, but no headphones connected (mute?)
ControllerStatus[controller] & 0x0010 // 0
ControllerStatus[controller] & 0x0020 // 1
ControllerStatus[controller] & 0x0040 // battery level (high bit)
ControllerStatus[controller] & 0x0080 // battery level (low bit)
ControllerStatus[controller] & 0x0100 // 1
ControllerStatus[controller] & 0x0200 // 1
ControllerStatus[controller] & 0x0400 // headset adapter plugged in
ControllerStatus[controller] & 0x0800 // 0
ControllerStatus[controller] & 0x1000 // 1
ControllerStatus[controller] & 0x2000 // 0
ControllerStatus[controller] & 0x4000 // 0
ControllerStatus[controller] & 0x8000 // 0
*/
uint8_t XBOXRECV::getBatteryLevel(uint8_t controller) {
uint8_t batteryLevel = ((controllerStatus[controller] & 0x00C0) >> 6) * 33;
if (batteryLevel == 99)
batteryLevel = 100;
return batteryLevel;
}
void XBOXRECV::XboxCommand(uint8_t controller, uint8_t* data, uint16_t nbytes) {
uint8_t rcode;
uint8_t outputPipe;
switch (controller) {
case 0: outputPipe = XBOX_OUTPUT_PIPE_1;
break;
case 1: outputPipe = XBOX_OUTPUT_PIPE_2;
break;
case 2: outputPipe = XBOX_OUTPUT_PIPE_3;
break;
case 3: outputPipe = XBOX_OUTPUT_PIPE_4;
break;
}
rcode = pUsb->outTransfer(bAddress, epInfo[ outputPipe ].epAddr, nbytes, data);
#ifdef EXTRADEBUG
if (rcode)
Notify(PSTR("Error sending Xbox message\r\n"), 0x80);
#endif
}
void XBOXRECV::setLedRaw(uint8_t controller, uint8_t value) {
writeBuf[0] = 0x00;
writeBuf[1] = 0x00;
writeBuf[2] = 0x08;
writeBuf[3] = value | 0x40;
XboxCommand(controller, writeBuf, 4);
}
void XBOXRECV::setLedOn(uint8_t controller, LED led) {
if (led != ALL) // All LEDs can't be on a the same time
setLedRaw(controller, (pgm_read_byte(&XBOXLEDS[(uint8_t)led])) + 4);
}
void XBOXRECV::setLedBlink(uint8_t controller, LED led) {
setLedRaw(controller, pgm_read_byte(&XBOXLEDS[(uint8_t)led]));
}
void XBOXRECV::setLedMode(uint8_t controller, LEDMode ledMode) { // This function is used to do some speciel LED stuff the controller supports
setLedRaw(controller, (uint8_t)ledMode);
}
/* PC runs this at interval of approx 2 seconds
Thanks to BusHound from Perisoft.net for the Windows USB Analysis output
Found by timstamp.co.uk
*/
void XBOXRECV::checkStatus() {
if (!bPollEnable)
return;
// Get controller info
writeBuf[0] = 0x08;
writeBuf[1] = 0x00;
writeBuf[2] = 0x0f;
writeBuf[3] = 0xc0;
for (uint8_t i = 0; i < 4; i++) {
XboxCommand(i, writeBuf, 4);
}
// Get battery status
writeBuf[0] = 0x00;
writeBuf[1] = 0x00;
writeBuf[2] = 0x00;
writeBuf[3] = 0x40;
for (uint8_t i = 0; i < 4; i++) {
if (Xbox360Connected[i])
XboxCommand(i, writeBuf, 4);
}
}
void XBOXRECV::setRumbleOn(uint8_t controller, uint8_t lValue, uint8_t rValue) {
writeBuf[0] = 0x00;
writeBuf[1] = 0x01;
writeBuf[2] = 0x0f;
writeBuf[3] = 0xc0;
writeBuf[4] = 0x00;
writeBuf[5] = lValue; // big weight
writeBuf[6] = rValue; // small weight
XboxCommand(controller, writeBuf, 7);
}
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