void
JoystickProtocolHandler::AddHandlers(HIDDevice &device,
HIDCollection &collection, ProtocolHandler *&handlerList)
{
if (collection.UsagePage() != B_HID_USAGE_PAGE_GENERIC_DESKTOP
|| (collection.UsageID() != B_HID_UID_GD_JOYSTICK
&& collection.UsageID() != B_HID_UID_GD_GAMEPAD
&& collection.UsageID() != B_HID_UID_GD_MULTIAXIS)) {
TRACE("collection not a joystick or gamepad\n");
return;
}
HIDParser &parser = device.Parser();
uint32 maxReportCount = parser.CountReports(HID_REPORT_TYPE_INPUT);
if (maxReportCount == 0)
return;
uint32 inputReportCount = 0;
HIDReport *inputReports[maxReportCount];
collection.BuildReportList(HID_REPORT_TYPE_INPUT, inputReports,
inputReportCount);
for (uint32 i = 0; i < inputReportCount; i++) {
HIDReport *inputReport = inputReports[i];
// try to find at least one axis
bool foundAxis = false;
for (uint32 j = 0; j < inputReport->CountItems(); j++) {
HIDReportItem *item = inputReport->ItemAt(j);
if (item == NULL || !item->HasData())
continue;
if (item->UsagePage() != B_HID_USAGE_PAGE_GENERIC_DESKTOP)
continue;
if (item->UsageID() >= B_HID_UID_GD_X
&& item->UsageID() <= B_HID_UID_GD_RZ) {
foundAxis = true;
break;
}
}
if (!foundAxis)
continue;
ProtocolHandler *newHandler
= new(std::nothrow) JoystickProtocolHandler(*inputReport);
if (newHandler == NULL) {
TRACE("failed to allocated joystick protocol handler\n");
continue;
}
newHandler->SetNextHandler(handlerList);
handlerList = newHandler;
}
}
JoystickProtocolHandler::JoystickProtocolHandler(HIDReport &report)
:
ProtocolHandler(report.Device(), "joystick/usb/", 0),
fReport(report),
fAxisCount(0),
fAxis(NULL),
fHatCount(0),
fHats(NULL),
fButtonCount(0),
fMaxButton(0),
fButtons(NULL),
fOpenCount(0),
fUpdateThread(-1)
{
mutex_init(&fUpdateLock, "joystick update lock");
memset(&fJoystickModuleInfo, 0, sizeof(joystick_module_info));
memset(&fCurrentValues, 0, sizeof(variable_joystick));
for (uint32 i = 0; i < report.CountItems(); i++) {
HIDReportItem *item = report.ItemAt(i);
if (!item->HasData())
continue;
switch (item->UsagePage()) {
case B_HID_USAGE_PAGE_BUTTON:
{
if (item->UsageID() > INT16_MAX)
break;
HIDReportItem **newButtons = (HIDReportItem **)realloc(fButtons,
++fButtonCount * sizeof(HIDReportItem *));
if (newButtons == NULL) {
fButtonCount--;
break;
}
fButtons = newButtons;
fButtons[fButtonCount - 1] = item;
if (fMaxButton < item->UsageID())
fMaxButton = item->UsageID();
break;
}
case B_HID_USAGE_PAGE_GENERIC_DESKTOP:
{
if (item->UsageID() == B_HID_UID_GD_HAT_SWITCH) {
HIDReportItem **newHats = (HIDReportItem **)realloc(fHats,
++fHatCount * sizeof(HIDReportItem *));
if (newHats == NULL) {
fHatCount--;
break;
}
fHats = newHats;
fHats[fHatCount - 1] = item;
break;
}
// TODO: "axis" is set but not used!
// uint16 axis = 0;
if (item->UsageID() >= B_HID_UID_GD_X
&& item->UsageID() <= B_HID_UID_GD_WHEEL) {
// axis = item->UsageID() - B_HID_UID_GD_X;
} else if (item->UsageID() >= B_HID_UID_GD_VX
&& item->UsageID() <= B_HID_UID_GD_VNO) {
// axis = item->UsageID() - B_HID_UID_GD_VX;
} else
break;
HIDReportItem **newAxis = (HIDReportItem **)realloc(fAxis,
++fAxisCount * sizeof(HIDReportItem *));
if (newAxis == NULL) {
fAxisCount--;
break;
}
fAxis = newAxis;
fAxis[fAxisCount - 1] = item;
break;
}
}
}
fCurrentValues.initialize(fAxisCount, fHatCount, fMaxButton);
TRACE("joystick device with %lu buttons, %lu axes and %lu hats\n",
fButtonCount, fAxisCount, fHatCount);
TRACE("report id: %u\n", report.ID());
}
TabletProtocolHandler::TabletProtocolHandler(HIDReport &report,
HIDReportItem &xAxis, HIDReportItem &yAxis)
:
ProtocolHandler(report.Device(), "input/tablet/usb", 0),
fReport(report),
fXAxis(xAxis),
fYAxis(yAxis),
fWheel(NULL),
fPressure(NULL),
fRange(NULL),
fTip(NULL),
fBarrelSwitch(NULL),
fEraser(NULL),
fXTilt(NULL),
fYTilt(NULL),
fLastButtons(0),
fClickCount(0),
fLastClickTime(0),
fClickSpeed(250000)
{
uint32 buttonCount = 0;
for (uint32 i = 0; i < report.CountItems(); i++) {
HIDReportItem *item = report.ItemAt(i);
if (!item->HasData())
continue;
if (item->UsagePage() == B_HID_USAGE_PAGE_BUTTON
&& item->UsageID() - 1 < B_MAX_MOUSE_BUTTONS) {
fButtons[buttonCount++] = item;
}
}
fButtons[buttonCount] = NULL;
fWheel = report.FindItem(B_HID_USAGE_PAGE_GENERIC_DESKTOP,
B_HID_UID_GD_WHEEL);
fPressure = report.FindItem(B_HID_USAGE_PAGE_DIGITIZER,
B_HID_UID_DIG_TIP_PRESSURE);
fRange = report.FindItem(B_HID_USAGE_PAGE_DIGITIZER,
B_HID_UID_DIG_IN_RANGE);
fTip = report.FindItem(B_HID_USAGE_PAGE_DIGITIZER,
B_HID_UID_DIG_TIP_SWITCH);
fBarrelSwitch = report.FindItem(B_HID_USAGE_PAGE_DIGITIZER,
B_HID_UID_DIG_BARREL_SWITCH);
fEraser = report.FindItem(B_HID_USAGE_PAGE_DIGITIZER,
B_HID_UID_DIG_ERASER);
fXTilt = report.FindItem(B_HID_USAGE_PAGE_DIGITIZER,
B_HID_UID_DIG_X_TILT);
fYTilt = report.FindItem(B_HID_USAGE_PAGE_DIGITIZER,
B_HID_UID_DIG_Y_TILT);
TRACE("tablet device with %lu buttons, %stip, %seraser, "
"%spressure, and %stilt\n",
buttonCount,
fTip == NULL ? "no " : "",
fEraser == NULL ? "no " : "",
fPressure == NULL ? "no " : "",
fXTilt == NULL && fYTilt == NULL ? "no " : "");
TRACE("report id: %u\n", report.ID());
}