usb hubs, hotplug support, unplug support, saving log files to disk, smt
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maksw committed
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@@ -125,7 +125,7 @@ void XhciArmAllHid(XHCI_CONTROLLER* xhci) {
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}
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void XhciHandleAsyncTransferEvent(XHCI_CONTROLLER* xhci, uint64_t trbPhys,
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static void XhciHandleLegacyHidTransferEvent(XHCI_CONTROLLER* xhci, uint64_t trbPhys,
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uint32_t completionCode, uint8_t slotId,
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uint8_t endpointId, uint32_t residue) {
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if (slotId == 0 || slotId > XHCI_MAX_TRACKED_SLOTS) return;
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@@ -158,11 +158,10 @@ void XhciHandleAsyncTransferEvent(XHCI_CONTROLLER* xhci, uint64_t trbPhys,
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KSTATUS XhciStartHidInterrupts(XHCI_CONTROLLER* xhci) {
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if (xhci->HidDeviceCount == 0)
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if (!xhci || xhci->HidDeviceCount == 0)
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return STATUS_SUCCESS;
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XhciArmAllHid(xhci);
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DbgPrint("usb: HID interrupt input armed devices=%u\n", xhci->HidDeviceCount);
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DbgPrint("usb: HID interrupt URBs active devices=%u\n", xhci->HidDeviceCount);
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return STATUS_SUCCESS;
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}
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@@ -365,3 +364,412 @@ KSTATUS UsbHidBind(IO_PUBLISHED_DEVICE* pub, void* context) {
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}
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return st;
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}
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// -------------------------------------------------------------------------
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// PDO/FDO boot HID function driver path.
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// -------------------------------------------------------------------------
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DRIVER_OBJECT gUsbHidDriver;
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static const IO_DEVICE_ID gUsbHidIds[] = {
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{ IoBusUsb, { "USB\\CLASS_03&SUBCLASS_01&PROT_01", sizeof("USB\\CLASS_03&SUBCLASS_01&PROT_01") - 1 } },
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{ IoBusUsb, { "USB\\CLASS_03&SUBCLASS_01&PROT_02", sizeof("USB\\CLASS_03&SUBCLASS_01&PROT_02") - 1 } },
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};
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static const IO_DRIVER_ID_TABLE gUsbHidIdTable = {
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gUsbHidIds,
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sizeof(gUsbHidIds) / sizeof(gUsbHidIds[0]),
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};
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static const USB_ENDPOINT_DESCRIPTOR* UsbHidFindInterruptInPdo(const USB_PDO_EXTENSION* ext) {
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if (!ext) return (const USB_ENDPOINT_DESCRIPTOR*)0;
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for (uint8_t i = 0; i < ext->EndpointCount; i++) {
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const USB_ENDPOINT_DESCRIPTOR* ep = &ext->Endpoints[i];
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uint8_t type = ep->bmAttributes & USB_ENDPOINT_ATTR_TYPE_MASK;
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bool in = (ep->bEndpointAddress & USB_ENDPOINT_DIR_IN) != 0;
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if (type == USB_ENDPOINT_TYPE_INTERRUPT && in)
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return ep;
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}
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return (const USB_ENDPOINT_DESCRIPTOR*)0;
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}
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static void UsbHidProcessBootKeyboardReport(USB_HID_EXTENSION* ext, const uint8_t* report, uint16_t len) {
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if (!ext || len < 8) return;
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uint8_t modifiers = report[0];
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for (uint8_t bit = 0; bit < 8; bit++) {
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uint8_t mask = (uint8_t)(1u << bit);
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bool wasDown = (ext->LastModifiers & mask) != 0;
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bool isDown = (modifiers & mask) != 0;
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if (wasDown != isDown)
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XhciSubmitHidKey(XhciHidModifierKey(bit), isDown);
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}
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const uint8_t* keys = &report[2];
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for (uint8_t i = 0; i < 6; i++) {
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uint8_t oldKey = ext->LastKeys[i];
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if (oldKey > 1 && !XhciHidKeyInReport(keys, oldKey))
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XhciSubmitHidKey((INPUT_KEY)oldKey, false);
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}
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for (uint8_t i = 0; i < 6; i++) {
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uint8_t newKey = keys[i];
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if (newKey > 1 && !XhciHidKeyInReport(ext->LastKeys, newKey))
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XhciSubmitHidKey((INPUT_KEY)newKey, true);
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}
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ext->LastModifiers = modifiers;
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memcpy(ext->LastKeys, keys, sizeof(ext->LastKeys));
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}
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static void UsbHidProcessBootMouseReport(USB_HID_EXTENSION* ext, const uint8_t* report, uint16_t len) {
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if (!ext || len < 3) return;
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int dx = (int)(int8_t)report[1];
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int dy = (int)(int8_t)report[2];
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int wheel = (len >= 4) ? (int)(int8_t)report[3] : 0;
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uint8_t buttons = report[0] & 0x07u;
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if (dx || dy || wheel || buttons != ext->LastButtons) {
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INPUT_MOUSE_EVENT ev;
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ev.dx = dx;
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ev.dy = dy;
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ev.wheel = wheel;
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ev.buttons = buttons;
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KeInputSubmitMouse(&ev);
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}
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ext->LastButtons = buttons;
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}
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static KSTATUS UsbHidArmInterrupt(USB_HID_EXTENSION* ext);
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static void UsbHidInterruptComplete(USB_URB* urb, void* context) {
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USB_HID_EXTENSION* ext = (USB_HID_EXTENSION*)context;
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if (!ext || urb != &ext->InterruptUrb)
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return;
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ext->InterruptPending = false;
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if (ext->SurpriseRemoved || ext->Removed || !ext->Started)
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return;
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if (KSUCCESS(urb->Status)) {
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uint16_t length = (uint16_t)urb->ActualLength;
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if (length > ext->ReportLength) length = ext->ReportLength;
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if (ext->Keyboard)
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UsbHidProcessBootKeyboardReport(ext, ext->ReportBuffer, length);
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else if (ext->Mouse)
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UsbHidProcessBootMouseReport(ext, ext->ReportBuffer, length);
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} else if (urb->Status != STATUS_CANCELLED) {
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DbgPrint("usb: HID interrupt URB failed slot=%u if=%u ep=%02x st=0x%x\n",
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ext->Device ? ext->Device->SlotId : 0,
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ext->InterfaceNumber,
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ext->EndpointAddress,
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urb->Status);
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}
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if (!ext->SurpriseRemoved && !ext->Removed)
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(void)UsbHidArmInterrupt(ext);
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}
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static KSTATUS UsbHidSendBootProtocol(USB_HID_EXTENSION* ext) {
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if (!ext || !ext->LowerDevice || !ext->Device)
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return STATUS_INVALID_PARAMETER;
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USB_URB urb;
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memset(&urb, 0, sizeof(urb));
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urb.Function = UrbFunctionControlTransfer;
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urb.Direction = UsbTransferNoData;
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urb.Device = ext->Device;
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urb.Setup.bmRequestType = USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE;
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urb.Setup.bRequest = USB_REQ_SET_PROTOCOL;
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urb.Setup.wValue = 0;
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urb.Setup.wIndex = ext->InterfaceNumber;
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urb.Setup.wLength = 0;
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KSTATUS st = UsbSubmitUrbSync(ext->LowerDevice, &urb);
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if (!KSUCCESS(st)) {
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DbgPrint("usb: HID SET_PROTOCOL boot failed slot=%u if=%u st=0x%x\n",
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ext->Device->SlotId, ext->InterfaceNumber, st);
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return st;
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}
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memset(&urb, 0, sizeof(urb));
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urb.Function = UrbFunctionControlTransfer;
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urb.Direction = UsbTransferNoData;
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urb.Device = ext->Device;
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urb.Setup.bmRequestType = USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE;
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urb.Setup.bRequest = USB_REQ_SET_IDLE;
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urb.Setup.wValue = 0;
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urb.Setup.wIndex = ext->InterfaceNumber;
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urb.Setup.wLength = 0;
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st = UsbSubmitUrbSync(ext->LowerDevice, &urb);
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if (!KSUCCESS(st)) {
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DbgPrint("usb: HID SET_IDLE failed slot=%u if=%u st=0x%x; continuing\n",
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ext->Device->SlotId, ext->InterfaceNumber, st);
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}
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DbgPrint("usb: HID boot protocol selected slot=%u if=%u proto=%u\n",
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ext->Device->SlotId, ext->InterfaceNumber, ext->Protocol);
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return STATUS_SUCCESS;
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}
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static KSTATUS UsbHidArmInterrupt(USB_HID_EXTENSION* ext) {
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if (!ext || !ext->Started || ext->SurpriseRemoved || ext->Removed)
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return STATUS_OBJECT_DEAD;
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if (!ext->LowerDevice || !ext->InterruptPipe || !ext->ReportBuffer || !ext->ReportBufferPhys)
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return STATUS_INVALID_PARAMETER;
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if (ext->InterruptPending)
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return STATUS_SUCCESS;
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memset(ext->ReportBuffer, 0, ext->ReportLength);
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memset(&ext->InterruptUrb, 0, sizeof(ext->InterruptUrb));
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ext->InterruptUrb.Function = UrbFunctionInterruptTransfer;
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ext->InterruptUrb.Direction = UsbTransferIn;
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ext->InterruptUrb.Device = ext->Device;
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ext->InterruptUrb.Pipe = ext->InterruptPipe;
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ext->InterruptUrb.Buffer = ext->ReportBuffer;
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ext->InterruptUrb.BufferPhys = ext->ReportBufferPhys;
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ext->InterruptUrb.Length = ext->ReportLength;
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ext->InterruptUrb.Complete = UsbHidInterruptComplete;
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ext->InterruptUrb.CompleteContext = ext;
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KSTATUS st = UsbSubmitUrbAsync(ext->LowerDevice, &ext->InterruptUrb);
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if (st != STATUS_PENDING && !KSUCCESS(st))
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return st;
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if (ext->InterruptUrb.Status != STATUS_PENDING && ext->InterruptUrb.Status != STATUS_SUCCESS)
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return ext->InterruptUrb.Status;
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ext->InterruptPending = true;
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return STATUS_SUCCESS;
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}
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static KSTATUS UsbHidStartDevice(DEVICE_OBJECT* device, USB_HID_EXTENSION* ext) {
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if (!device || !ext || !ext->Device || !ext->InterfacePdo)
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return STATUS_INVALID_PARAMETER;
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if (ext->Started)
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return STATUS_SUCCESS;
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if (ext->SurpriseRemoved || ext->Removed)
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return STATUS_OBJECT_DEAD;
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USB_PDO_EXTENSION* pdoExt = (USB_PDO_EXTENSION*)ext->InterfacePdo->DeviceExtension;
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if (!pdoExt || pdoExt->Kind != UsbPdoInterface)
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return STATUS_INVALID_PARAMETER;
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const USB_ENDPOINT_DESCRIPTOR* ep = UsbHidFindInterruptInPdo(pdoExt);
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if (!ep)
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return STATUS_NOT_FOUND;
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ext->Keyboard = (pdoExt->InterfaceDescriptor.bInterfaceProtocol == USB_HID_PROTOCOL_KEYBOARD);
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ext->Mouse = (pdoExt->InterfaceDescriptor.bInterfaceProtocol == USB_HID_PROTOCOL_MOUSE);
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ext->InterfaceNumber = pdoExt->InterfaceDescriptor.bInterfaceNumber;
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ext->Protocol = pdoExt->InterfaceDescriptor.bInterfaceProtocol;
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ext->EndpointAddress = ep->bEndpointAddress;
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ext->MaxPacketSize = ep->wMaxPacketSize;
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ext->Interval = ep->bInterval;
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uint16_t reportLength = ext->MaxPacketSize & 0x07FFu;
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if (reportLength == 0) reportLength = ext->Keyboard ? 8u : 4u;
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if (ext->Keyboard && reportLength < 8) reportLength = 8;
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if (ext->Mouse && reportLength < 3) reportLength = 3;
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if (reportLength > XHCI_MAX_HID_REPORT) reportLength = XHCI_MAX_HID_REPORT;
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ext->ReportLength = reportLength;
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ext->ReportBuffer = (uint8_t*)UsbAllocateDmaBuffer(ext->Device, 1, &ext->ReportBufferPhys);
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if (!ext->ReportBuffer)
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return STATUS_NO_MEMORY;
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KSTATUS st = UsbCreatePipe(ext->Device,
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UsbPipeInterrupt,
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ext->EndpointAddress,
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ext->MaxPacketSize,
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ext->Interval,
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&ext->InterruptPipe);
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if (!KSUCCESS(st))
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return st;
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st = UsbHidSendBootProtocol(ext);
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if (!KSUCCESS(st))
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return st;
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memset(ext->LastKeys, 0, sizeof(ext->LastKeys));
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ext->LastModifiers = 0;
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ext->LastButtons = 0;
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KeInputRegisterDevice(ext->Keyboard ? "usb-hid-keyboard" : "usb-hid-mouse", 0, &ext->InputDeviceId);
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ext->Started = true;
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device->PnpState = DevicePnpStarted;
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if (ext->InterfacePdo)
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ext->InterfacePdo->PnpState = DevicePnpStarted;
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XHCI_CONTROLLER* xhci = ext->Device && ext->Device->Hcd ?
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(XHCI_CONTROLLER*)ext->Device->Hcd->ControllerContext : (XHCI_CONTROLLER*)0;
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st = UsbHidArmInterrupt(ext);
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if (!KSUCCESS(st))
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return st;
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if (xhci)
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xhci->HidDeviceCount++;
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DbgPrint("usb: HID boot %s bound slot=%u if=%u ep=%02x maxpkt=%u interval=%u input=%u urb\n",
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ext->Keyboard ? "keyboard" : "mouse",
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ext->Device->SlotId,
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ext->InterfaceNumber,
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ext->EndpointAddress,
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ext->MaxPacketSize,
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ext->Interval,
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ext->InputDeviceId);
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return STATUS_SUCCESS;
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}
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KSTATUS UsbHidDispatchPnp(DEVICE_OBJECT* device, IRP* irp) {
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if (!device || !irp)
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return STATUS_INVALID_PARAMETER;
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IO_STACK_LOCATION* ios = IoGetCurrentIrpStackLocation(irp);
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if (!ios || ios->MajorFunction != IRP_MJ_PNP)
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return STATUS_INVALID_PARAMETER;
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USB_HID_EXTENSION* ext = (USB_HID_EXTENSION*)device->DeviceExtension;
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KSTATUS st = STATUS_SUCCESS;
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switch ((IO_PNP_MINOR_FUNCTION)ios->MinorFunction) {
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case IRP_MN_START_DEVICE:
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st = UsbHidStartDevice(device, ext);
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if (!KSUCCESS(st)) {
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IoCompleteRequest(irp, st, 0);
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return STATUS_PENDING;
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}
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return IoForwardIrpToLower(device, irp);
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case IRP_MN_QUERY_REMOVE_DEVICE:
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device->PnpState = DevicePnpRemovePending;
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return IoForwardIrpToLower(device, irp);
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case IRP_MN_CANCEL_REMOVE_DEVICE:
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if (!ext || !ext->SurpriseRemoved)
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device->PnpState = DevicePnpStarted;
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return IoForwardIrpToLower(device, irp);
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case IRP_MN_SURPRISE_REMOVAL:
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device->PnpState = DevicePnpSurpriseRemoved;
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if (ext) {
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ext->SurpriseRemoved = true;
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ext->Started = false;
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if (ext->InterruptPending)
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(void)UsbCancelUrb(&ext->InterruptUrb);
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}
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return IoForwardIrpToLower(device, irp);
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case IRP_MN_REMOVE_DEVICE: {
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device->PnpState = DevicePnpDeleted;
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if (ext) {
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ext->Removed = true;
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ext->Started = false;
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if (ext->InterruptPending)
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(void)UsbCancelUrb(&ext->InterruptUrb);
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if (ext->InterruptPipe) {
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ext->InterruptPipe->Open = false;
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UsbDereferencePipe(ext->InterruptPipe);
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ext->InterruptPipe = (USB_PIPE*)0;
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}
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if (ext->Device && ext->Device->Hcd) {
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XHCI_CONTROLLER* xhci = (XHCI_CONTROLLER*)ext->Device->Hcd->ControllerContext;
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if (xhci && xhci->HidDeviceCount)
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xhci->HidDeviceCount--;
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}
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if (ext->RemoveLockReady) {
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IoReleaseRemoveLockAndWait(&ext->RemoveLock, irp);
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IoDestroyRemoveLock(&ext->RemoveLock);
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ext->RemoveLockReady = false;
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}
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}
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KSTATUS lower = ext && ext->LowerDevice ? IoForwardIrpToLower(device, irp) : STATUS_SUCCESS;
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if (ext && ext->LowerDevice) {
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IoDetachDevice(device);
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ext->LowerDevice = (DEVICE_OBJECT*)0;
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}
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IoDeleteDevice(device);
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if (lower == STATUS_NOT_SUPPORTED) {
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IoCompleteRequest(irp, STATUS_SUCCESS, 0);
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return STATUS_PENDING;
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}
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if (lower != STATUS_PENDING && !KSUCCESS(lower)) {
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IoCompleteRequest(irp, lower, 0);
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return STATUS_PENDING;
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}
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return lower;
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}
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default:
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return IoForwardIrpToLower(device, irp);
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}
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}
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KSTATUS UsbHidAddDevice(DRIVER_OBJECT* driver, DEVICE_OBJECT* physicalDeviceObject) {
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if (!driver || !physicalDeviceObject || physicalDeviceObject->Type != DeviceObjectPhysical)
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return STATUS_INVALID_PARAMETER;
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USB_PDO_EXTENSION* pdoExt = (USB_PDO_EXTENSION*)physicalDeviceObject->DeviceExtension;
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if (!pdoExt || pdoExt->Kind != UsbPdoInterface || !pdoExt->Device)
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return STATUS_INVALID_PARAMETER;
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if (pdoExt->InterfaceDescriptor.bInterfaceClass != USB_CLASS_HID ||
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pdoExt->InterfaceDescriptor.bInterfaceSubClass != USB_HID_SUBCLASS_BOOT)
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return STATUS_INVALID_PARAMETER;
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if (pdoExt->InterfaceDescriptor.bInterfaceProtocol != USB_HID_PROTOCOL_KEYBOARD &&
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pdoExt->InterfaceDescriptor.bInterfaceProtocol != USB_HID_PROTOCOL_MOUSE)
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return STATUS_INVALID_PARAMETER;
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if (!UsbHidFindInterruptInPdo(pdoExt))
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return STATUS_NOT_FOUND;
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DEVICE_OBJECT* fdo = (DEVICE_OBJECT*)0;
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KSTATUS st = IoCreateDevice(driver, sizeof(USB_HID_EXTENSION), &fdo);
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if (!KSUCCESS(st))
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return st;
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(void)IoSetDeviceName(fdo,
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pdoExt->InterfaceDescriptor.bInterfaceProtocol == USB_HID_PROTOCOL_KEYBOARD
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? SYS_SV_LITERAL("usb-hid-keyboard")
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: SYS_SV_LITERAL("usb-hid-mouse"));
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USB_HID_EXTENSION* ext = (USB_HID_EXTENSION*)fdo->DeviceExtension;
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ext->Self = fdo;
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ext->InterfacePdo = physicalDeviceObject;
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ext->Device = pdoExt->Device;
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st = IoInitializeRemoveLock(&ext->RemoveLock);
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if (!KSUCCESS(st)) {
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IoDeleteDevice(fdo);
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return st;
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}
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ext->RemoveLockReady = true;
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|
||||
ext->LowerDevice = IoAttachDeviceToDeviceStack(fdo, physicalDeviceObject);
|
||||
if (!ext->LowerDevice) {
|
||||
IoDestroyRemoveLock(&ext->RemoveLock);
|
||||
ext->RemoveLockReady = false;
|
||||
IoDeleteDevice(fdo);
|
||||
return STATUS_FAILURE;
|
||||
}
|
||||
|
||||
DbgPrint("usb: HID FDO attached slot=%u if=%u proto=%u\n",
|
||||
ext->Device->SlotId,
|
||||
pdoExt->InterfaceDescriptor.bInterfaceNumber,
|
||||
pdoExt->InterfaceDescriptor.bInterfaceProtocol);
|
||||
return STATUS_SUCCESS;
|
||||
}
|
||||
|
||||
KSTATUS UsbInitializeHidDriver(void) {
|
||||
memset(&gUsbHidDriver, 0, sizeof(gUsbHidDriver));
|
||||
IoInitializeDriverObject(&gUsbHidDriver, SYS_SV_LITERAL("usb-hid"));
|
||||
gUsbHidDriver.IdTable = &gUsbHidIdTable;
|
||||
gUsbHidDriver.DriverAddDevice = UsbHidAddDevice;
|
||||
gUsbHidDriver.MajorFunction[IRP_MJ_PNP] = UsbHidDispatchPnp;
|
||||
return IoRegisterDriverObject(&gUsbHidDriver);
|
||||
}
|
||||
Reference in new issue
Block a user