diff options
Diffstat (limited to 'network/radio/HidSwitchDriverSample/hid.c')
| -rw-r--r-- | network/radio/HidSwitchDriverSample/hid.c | 659 |
1 files changed, 0 insertions, 659 deletions
diff --git a/network/radio/HidSwitchDriverSample/hid.c b/network/radio/HidSwitchDriverSample/hid.c deleted file mode 100644 index 2421b88f..00000000 --- a/network/radio/HidSwitchDriverSample/hid.c +++ /dev/null @@ -1,659 +0,0 @@ -#include "RadioSwitchHidUsbFx2.h" -#include "hid.tmh" - -// Radio Management Collection - Scenario 1 control collection (Button only) -// -const HID_REPORT_DESCRIPTOR c_ButtonDescriptor[] = { - 0x05, GENERIC_DESKTOP_USAGE_PAGE, // USAGE_PAGE (Generic Desktop) - 0x09, WIRELESS_RADIO_CONTROLS_USAGE,// USAGE (Wireless Radio Controls) - 0xA1, 0x01, // COLLECTION (Application) - 0x85, GENERIC_DESKTOP_REPORT_ID, // REPORT_ID - 0x15, 0x00, // LOGICAL_MINIMUM(0) - 0x25, 0x01, // LOGICAL_MAXIMUM(1) - // - 0x09, WIRELESS_RADIO_BUTTON_USAGE, // USAGE (Wireless Radio Button) - 0x95, 0x01, // REPORT_COUNT (1) - 0x75, 0x01, // REPORT_SIZE (1) - 0x81, 0x06, // INPUT (Data, Variable, Rel) - button bit - 0x75, 0x07, // REPORT_SIZE (7) - 0x81, 0x03, // INPUT (const, var, abs) -7 bits of padding - 0xC0 // END_COLLECTION -}; - - -// Radio Management Collection - Scenario 2 control collection (Button with LED) -// -const HID_REPORT_DESCRIPTOR c_ButtonWithLedDescriptor[] = { - 0x05, GENERIC_DESKTOP_USAGE_PAGE, // USAGE_PAGE (Generic Desktop) - 0x09, WIRELESS_RADIO_CONTROLS_USAGE,// USAGE (Wireless Radio Controls) - 0xA1, 0x01, // COLLECTION (Application) - 0x85, GENERIC_DESKTOP_REPORT_ID, // REPORT_ID - 0x15, 0x00, // LOGICAL_MINIMUM(0) - 0x25, 0x01, // LOGICAL_MAXIMUM(1) - // - 0x09, WIRELESS_RADIO_BUTTON_USAGE, // USAGE (Wireless Radio Button) - 0x95, 0x01, // REPORT_COUNT (1) - 0x75, 0x01, // REPORT_SIZE (1) - 0x81, 0x06, // INPUT (Data, Variable, Rel) - button bit - 0x75, 0x07, // REPORT_SIZE (7) - 0x81, 0x03, // INPUT (const, var, abs) -7 bits of padding - // - 0x09, WIRELESS_RADIO_LED_USAGE, // USAGE (Wireless Radio LED) - 0x75, 0x01, // REPORT_SIZE (1) - 0x91, 0x02, // OUTPUT (Data, Variable, Rel) -led bit - 0x75, 0x07, // REPORT_SIZE (7) - 0x91, 0x03, // OUTPUT (const, var, abs) -7 bits of padding - 0xC0 // END_COLLECTION -}; - - -// Radio Management Collection - Scenario 3 control collection (Slider Switch) -// -const HID_REPORT_DESCRIPTOR c_SliderSwitchDescriptor[] = { - 0x05, GENERIC_DESKTOP_USAGE_PAGE, // USAGE_PAGE (Generic Desktop) - 0x09, WIRELESS_RADIO_CONTROLS_USAGE,// USAGE (Wireless Radio Controls) - 0xA1, 0x01, // COLLECTION (Application) - 0x85, GENERIC_DESKTOP_REPORT_ID, // REPORT_ID - 0x15, 0x00, // LOGICAL_MINIMUM(0) - 0x25, 0x01, // LOGICAL_MAXIMUM(1) - // - 0x09, WIRELESS_RADIO_SLIDER_USAGE, // USAGE (Wireless Radio Slider Switch) - 0x95, 0x01, // REPORT_COUNT (1) - 0x75, 0x01, // REPORT_SIZE (1) - 0x81, 0x02, // INPUT (Data, Variable, Abs) -switch bit - 0x75, 0x07, // REPORT_SIZE (7) - 0x81, 0x03, // INPUT (const, var, abs) -7 bits of padding - 0xC0 // END_COLLECTION -}; - - -// Radio Management Collection - Scenario 4 control collection (Slider Switch with LED) -// -const HID_REPORT_DESCRIPTOR c_SliderSwitchWithLedDescriptor[] = { - 0x05, GENERIC_DESKTOP_USAGE_PAGE, // USAGE_PAGE (Generic Desktop) - 0x09, WIRELESS_RADIO_CONTROLS_USAGE,// USAGE (Wireless Radio Controls) - 0xA1, 0x01, // COLLECTION (Application) - 0x85, GENERIC_DESKTOP_REPORT_ID, // REPORT_ID - 0x15, 0x00, // LOGICAL_MINIMUM(0) - 0x25, 0x01, // LOGICAL_MAXIMUM(1) - // - 0x09, WIRELESS_RADIO_SLIDER_USAGE, // USAGE (Wireless Radio Slider Switch) - 0x95, 0x01, // REPORT_COUNT (1) - 0x75, 0x01, // REPORT_SIZE (1) - 0x81, 0x02, // INPUT (Data, Variable, Abs) -switch bit - 0x75, 0x07, // REPORT_SIZE (7) - 0x81, 0x03, // INPUT (const, var, abs) -7 bits of padding - // - 0x09, WIRELESS_RADIO_LED_USAGE, // USAGE (Wireless Radio LED) - 0x75, 0x01, // REPORT_SIZE (1) - 0x91, 0x02, // OUTPUT (Data, Variable, Rel) -led bit - 0x75, 0x07, // REPORT_SIZE (7) - 0x91, 0x03, // OUTPUT (const, var, abs) -7 bits of padding - 0xC0 // END_COLLECTION -}; - - -// Radio Management Collection - Scenario 5 control collection (LED only) -// -const HID_REPORT_DESCRIPTOR c_LedOnlyDescriptor[] = { - 0x05, GENERIC_DESKTOP_USAGE_PAGE, // USAGE_PAGE (Generic Desktop) - 0x09, WIRELESS_RADIO_CONTROLS_USAGE,// USAGE (Wireless Radio Controls) - 0xA1, 0x01, // COLLECTION (Application) - 0x85, GENERIC_DESKTOP_REPORT_ID, // REPORT_ID - 0x15, 0x00, // LOGICAL_MINIMUM(0) - 0x25, 0x01, // LOGICAL_MAXIMUM(1) - // - 0x09, WIRELESS_RADIO_LED_USAGE, // USAGE (Wireless Radio LED) - 0x95, 0x01, // REPORT_COUNT (1) - 0x75, 0x01, // REPORT_SIZE (1) - 0x91, 0x02, // OUTPUT (Data, Variable, Rel) -led bit - 0x75, 0x07, // REPORT_SIZE (7) - 0x91, 0x03, // OUTPUT (const, var, abs) -7 bits of padding - 0xC0 // END_COLLECTION -}; - - -#ifdef ALLOC_PRAGMA - #pragma alloc_text(PAGE, HidFx2SetOutput) - #pragma alloc_text(PAGE, HidFx2GetInput) - #pragma alloc_text(PAGE, SendVendorCommand) -#endif - - -// This event is called when the framework receives IRP_MJ_INTERNAL DEVICE_CONTROL requests from the system. -// -void HidFx2EvtInternalDeviceControl( - _In_ WDFQUEUE hQueue, - _In_ WDFREQUEST hRequest, - _In_ size_t cOutputBufferLength, - _In_ size_t cInputBufferLength, - _In_ ULONG ulIoControlCode - ) -{ - NTSTATUS status = STATUS_SUCCESS; - WDFDEVICE hDevice; - PDEVICE_EXTENSION pDevContext = NULL; - - UNREFERENCED_PARAMETER(cOutputBufferLength); - UNREFERENCED_PARAMETER(cInputBufferLength); - - TraceVerbose(DBG_IOCTL, "(%!FUNC!) Enter\n"); - - hDevice = WdfIoQueueGetDevice(hQueue); - pDevContext = GetDeviceContext(hDevice); - - TraceInfo(DBG_IOCTL, "(%!FUNC!) Queue:0x%p, Request:0x%p\n", hQueue, hRequest); - - switch (ulIoControlCode) - { - case IOCTL_HID_GET_DEVICE_DESCRIPTOR: - TraceInfo(DBG_IOCTL, "IOCTL_HID_GET_DEVICE_DESCRIPTOR\n"); - status = HidFx2GetHidDescriptor(hDevice, hRequest); - WdfRequestComplete(hRequest, status); - break; - - case IOCTL_HID_GET_DEVICE_ATTRIBUTES: - TraceInfo(DBG_IOCTL, "IOCTL_HID_GET_DEVICE_ATTRIBUTES\n"); - status = HidFx2GetDeviceAttributes(hRequest); - WdfRequestComplete(hRequest, status); - break; - - case IOCTL_HID_GET_REPORT_DESCRIPTOR: - TraceInfo(DBG_IOCTL, "IOCTL_HID_GET_REPORT_DESCRIPTOR\n"); - status = HidFx2GetReportDescriptor(hDevice, hRequest); - WdfRequestComplete(hRequest, status); - break; - - case IOCTL_HID_READ_REPORT: - TraceInfo(DBG_IOCTL, "IOCTL_HID_READ_REPORT\n"); - status = WdfRequestForwardToIoQueue(hRequest, pDevContext->hInterruptMsgQueue); - if (!NT_SUCCESS(status)) - { - TraceErr(DBG_IOCTL, "WdfRequestForwardToIoQueue failed with status: %!STATUS!\n", status); - WdfRequestComplete(hRequest, status); - } - break; - - case IOCTL_HID_SEND_IDLE_NOTIFICATION_REQUEST: - TraceInfo(DBG_IOCTL, "IOCTL_HID_SEND_IDLE_NOTIFICATION_REQUEST\n"); - status = HidFx2SendIdleNotification(hRequest); - if (!NT_SUCCESS(status)) - { - TraceErr(DBG_IOCTL, "SendIdleNotification failed with status: %!STATUS!\n", status); - WdfRequestComplete(hRequest, status); - } - break; - - case IOCTL_HID_GET_INPUT_REPORT: - TraceInfo(DBG_IOCTL, "IOCTL_HID_GET_INPUT_REPORT\n"); - HidFx2GetInput(hRequest); - WdfRequestComplete(hRequest, status); - break; - - case IOCTL_HID_SET_OUTPUT_REPORT: - TraceInfo(DBG_IOCTL, "IOCTL_HID_SET_OUTPUT_REPORT\n"); - status = HidFx2SetOutput(hRequest); - WdfRequestComplete(hRequest, status); - break; - - default: - TraceInfo(DBG_IOCTL, "IOCTL Not Supported 0x%X\n", ulIoControlCode); - status = STATUS_NOT_SUPPORTED; - WdfRequestComplete(hRequest, status); - break; - } - - TraceVerbose(DBG_IOCTL, "(%!FUNC!) Exit\n"); - return; -} - - - -NTSTATUS HidFx2GetInput(_In_ WDFREQUEST hRequest) -{ - NTSTATUS status = STATUS_SUCCESS; - WDF_REQUEST_PARAMETERS params; - WDFDEVICE hDevice; - PHID_XFER_PACKET pTransferPacket = NULL; - PHIDFX2_IO_REPORT pOutputReport = NULL; - unsigned char bSwitchState = 0; - - PAGED_CODE(); - - TraceVerbose(DBG_IOCTL, "(%!FUNC!) Enter\n"); - - hDevice = WdfIoQueueGetDevice(WdfRequestGetIoQueue(hRequest)); - - WDF_REQUEST_PARAMETERS_INIT(¶ms); - WdfRequestGetParameters(hRequest, ¶ms); - - - if (params.Parameters.DeviceIoControl.OutputBufferLength < sizeof(HID_XFER_PACKET)) - { - status = STATUS_BUFFER_TOO_SMALL; - TraceErr(DBG_IOCTL, "(%!FUNC!) Userbuffer is small %!STATUS!\n", status); - return status; - } - - pTransferPacket = (PHID_XFER_PACKET) WdfRequestWdmGetIrp(hRequest)->UserBuffer; - if (pTransferPacket == NULL) - { - status = STATUS_INVALID_DEVICE_REQUEST; - TraceErr(DBG_IOCTL, "(%!FUNC!) Irp->UserBuffer is NULL %!STATUS!\n", status); - return status; - } - - if (pTransferPacket->reportBufferLen == 0) - { - status = STATUS_BUFFER_TOO_SMALL; - TraceErr(DBG_IOCTL, "(%!FUNC!) HID_XFER_PACKET->reportBufferLen is 0, %!STATUS!\n", status); - return status; - } - - if (pTransferPacket->reportBufferLen < sizeof(UCHAR)) - { - status = STATUS_BUFFER_TOO_SMALL; - TraceErr(DBG_IOCTL, "(%!FUNC!) HID_XFER_PACKET->reportBufferLen is too small, %!STATUS!\n", status); - return status; - } - - if (pTransferPacket->reportId != GENERIC_DESKTOP_REPORT_ID) - { - status = STATUS_INVALID_DEVICE_REQUEST; - TraceErr(DBG_IOCTL, "(%!FUNC!) Incorrect report ID, %!STATUS!\n", status); - return status; - } - - pOutputReport = (PHIDFX2_IO_REPORT)pTransferPacket->reportBuffer; - - // Get the switch state directly from the hardware - status = HidFx2GetSwitchState(hDevice, &bSwitchState); - TraceVerbose(DBG_IOCTL, "(%!FUNC!) switch state 0x%x\n", bSwitchState); - - //Mask off everything except the actual switch bit - bSwitchState &= RADIO_SWITCH_BUTTONS_BIT_MASK; - TraceVerbose(DBG_IOCTL, "(%!FUNC!) maskedswitch state 0x%x\n", bSwitchState); - - pOutputReport->bReportId = GENERIC_DESKTOP_REPORT_ID; - pOutputReport->bData = bSwitchState; - - TraceVerbose(DBG_IOCTL, "(%!FUNC!) Exit status %!STATUS!\n", status); - return status; -} - - - -NTSTATUS HidFx2SetOutput(_In_ WDFREQUEST hRequest) -{ - NTSTATUS status = STATUS_SUCCESS; - PHID_XFER_PACKET pTransferPacket = NULL; - WDF_REQUEST_PARAMETERS params; - PHIDFX2_IO_REPORT pOutputReport = NULL; - WDFDEVICE hDevice; - - PAGED_CODE(); - - TraceVerbose(DBG_IOCTL, "(%!FUNC!) Enter\n"); - - hDevice = WdfIoQueueGetDevice(WdfRequestGetIoQueue(hRequest)); - - WDF_REQUEST_PARAMETERS_INIT(¶ms); - WdfRequestGetParameters(hRequest, ¶ms); - - if (params.Parameters.DeviceIoControl.InputBufferLength < sizeof(HID_XFER_PACKET)) - { - status = STATUS_BUFFER_TOO_SMALL; - TraceErr(DBG_IOCTL, "(%!FUNC!) Userbuffer is small %!STATUS!\n", status); - return status; - } - - pTransferPacket = (PHID_XFER_PACKET) WdfRequestWdmGetIrp(hRequest)->UserBuffer; - if (pTransferPacket == NULL) - { - status = STATUS_INVALID_DEVICE_REQUEST; - TraceErr(DBG_IOCTL, "(%!FUNC!) Irp->UserBuffer is NULL %!STATUS!\n", status); - return status; - } - - if (pTransferPacket->reportBufferLen == 0) - { - status = STATUS_BUFFER_TOO_SMALL; - TraceErr(DBG_IOCTL, "(%!FUNC!) HID_XFER_PACKET->reportBufferLen is 0, %!STATUS!\n", status); - return status; - } - - if (pTransferPacket->reportBufferLen < sizeof(UCHAR)) - { - status = STATUS_BUFFER_TOO_SMALL; - TraceErr(DBG_IOCTL, "(%!FUNC!) HID_XFER_PACKET->reportBufferLen is too small, %!STATUS!\n", status); - return status; - } - - if (pTransferPacket->reportId != GENERIC_DESKTOP_REPORT_ID) - { - status = STATUS_INVALID_DEVICE_REQUEST; - TraceErr(DBG_IOCTL, "(%!FUNC!) Incorrect report ID, %!STATUS!\n", status); - return status; - } - - pOutputReport = (PHIDFX2_IO_REPORT)pTransferPacket->reportBuffer; - - if (pOutputReport->bData == 0) - { - status = SendVendorCommand(hDevice, HIDFX2_SET_BARGRAPH_DISPLAY, BARGRAPH_LED_ALL_OFF); - } - else - { - status = SendVendorCommand(hDevice, HIDFX2_SET_BARGRAPH_DISPLAY, BARGRAPH_LED_ALL_ON); - } - - TraceVerbose(DBG_IOCTL, "(%!FUNC!) Exit status %!STATUS!\n", status); - return status; -} - - - -//This routine sets the state of the Feature: in this case Segment Display on the USB FX2 board. -NTSTATUS SendVendorCommand(_In_ WDFDEVICE hDevice, _In_ unsigned char bVendorCommand, _In_ unsigned char bCommandData) -{ - NTSTATUS status = STATUS_SUCCESS; - ULONG cBytesTransferred = 0; - PDEVICE_EXTENSION pDevContext = NULL; - WDF_MEMORY_DESCRIPTOR memDesc; - WDF_USB_CONTROL_SETUP_PACKET controlSetupPacket; - WDF_REQUEST_SEND_OPTIONS sendOptions; - - PAGED_CODE(); - - TraceVerbose(DBG_IOCTL, "(%!FUNC!) Enter\n"); - - pDevContext = GetDeviceContext(hDevice); - - TraceInfo(DBG_IOCTL, "(%!FUNC!): Command:0x%x, data: 0x%x\n", bVendorCommand, bCommandData); - - // Send the I/O with a timeout. - // We do that because we send the I/O in the context of the user thread and if it gets stuck, it would prevent the user process from existing. - WDF_REQUEST_SEND_OPTIONS_INIT(&sendOptions, WDF_REQUEST_SEND_OPTION_TIMEOUT); - - WDF_REQUEST_SEND_OPTIONS_SET_TIMEOUT(&sendOptions, WDF_REL_TIMEOUT_IN_SEC(5)); - - WDF_USB_CONTROL_SETUP_PACKET_INIT_VENDOR(&controlSetupPacket, - BmRequestHostToDevice, - BmRequestToDevice, - bVendorCommand, // Request - 0, // Value - 0); // Index - - WDF_MEMORY_DESCRIPTOR_INIT_BUFFER(&memDesc, &bCommandData, sizeof(bCommandData)); - - status = WdfUsbTargetDeviceSendControlTransferSynchronously(pDevContext->hUsbDevice, - WDF_NO_HANDLE, // Optional WDFREQUEST - &sendOptions, // PWDF_REQUEST_SEND_OPTIONS - &controlSetupPacket, - &memDesc, - &cBytesTransferred); - if (!NT_SUCCESS(status)) - { - TraceErr(DBG_IOCTL, "(%!FUNC!): Failed to set Segment Display state - %!STATUS!\n", status); - } - - TraceVerbose(DBG_IOCTL, "(%!FUNC!) Exit\n"); - - return status; -} - - - -// Finds the HID descriptor and copies it into the buffer provided by the Request. -// -NTSTATUS HidFx2GetHidDescriptor(_In_ WDFDEVICE hDevice, _In_ WDFREQUEST hRequest) -{ - NTSTATUS status = STATUS_SUCCESS; - size_t cBytesToCopy = 0; - WDFMEMORY memory; - PDEVICE_EXTENSION pDevContext = NULL; - HID_DESCRIPTOR hidDescriptor; - - - TraceVerbose(DBG_IOCTL, "(%!FUNC!) Entry\n"); - - status = WdfRequestRetrieveOutputMemory(hRequest, &memory); - if (NT_SUCCESS(status)) - { - hidDescriptor.bLength= sizeof(hidDescriptor); // length of HID descriptor - hidDescriptor.bDescriptorType= HID_HID_DESCRIPTOR_TYPE; // descriptor type == HID 0x21 - hidDescriptor.bcdHID= HID_CLASS_SPEC_RELEASE_1_00; // hid spec release - hidDescriptor.bCountry= HID_COUNTRY_NON_LOCALIZED; // country code - hidDescriptor.bNumDescriptors= 0x01; // number of HID class descriptors - hidDescriptor.DescriptorList[0].bReportType =HID_REPORT_DESCRIPTOR_TYPE; - hidDescriptor.DescriptorList[0].wReportLength = sizeof(c_ButtonDescriptor); - - pDevContext = GetDeviceContext(hDevice); - if (pDevContext != NULL) - { - // Set length of non default report descriptor - switch (pDevContext->driverMode) - { - case DM_BUTTON_AND_LED: - hidDescriptor.DescriptorList[0].wReportLength = sizeof(c_ButtonWithLedDescriptor); - break; - case DM_SLIDER_SWITCH: - hidDescriptor.DescriptorList[0].wReportLength = sizeof(c_SliderSwitchDescriptor); - break; - case DM_SLIDER_SWITCH_AND_LED: - hidDescriptor.DescriptorList[0].wReportLength = sizeof(c_SliderSwitchWithLedDescriptor); - break; - case DM_LED_ONLY: - hidDescriptor.DescriptorList[0].wReportLength = sizeof(c_LedOnlyDescriptor); - break; - default: - break; - } - } - cBytesToCopy = hidDescriptor.bLength; - if (cBytesToCopy != 0) - { - status = WdfMemoryCopyFromBuffer(memory, 0, (PVOID)&hidDescriptor, cBytesToCopy); - if (NT_SUCCESS(status)) - { - // Report how many bytes were copied - WdfRequestSetInformation(hRequest, cBytesToCopy); - } - else // WdfMemoryCopyFromBuffer failed - { - TraceErr(DBG_IOCTL, "(%!FUNC!) WdfMemoryCopyFromBuffer failed %!STATUS!\n", status); - return status; - } - } - else // length is zero - { - status = STATUS_INVALID_DEVICE_STATE; - TraceErr(DBG_IOCTL, "(%!FUNC!) c_DefaultHidDescriptor is zero, %!STATUS!\n", status); - return status; - } - - } - else // WdfRequestRetrieveOutputMemory failed - { - TraceErr(DBG_IOCTL, " (%!FUNC!) WdfRequestRetrieveOutputMemory failed %!STATUS!\n", status); - return status; - } - - TraceVerbose(DBG_IOCTL, " (%!FUNC!) HidFx2GetHidDescriptor Exit = %!STATUS!\n", status); - return status; -} - - - -// Finds the Report descriptor and copies it into the buffer provided by the Request. -// -NTSTATUS HidFx2GetReportDescriptor(_In_ WDFDEVICE hDevice, _In_ WDFREQUEST hRequest) -{ - NTSTATUS status = STATUS_SUCCESS; - WDFMEMORY memory; - PDEVICE_EXTENSION pDevContext = NULL; - PVOID pBuffer = (PVOID)c_ButtonDescriptor; - size_t cBytesToCopy = sizeof(c_ButtonDescriptor); - - - TraceVerbose(DBG_IOCTL, "(%!FUNC!) Entry\n"); - - status = WdfRequestRetrieveOutputMemory(hRequest, &memory); - if (NT_SUCCESS(status)) - { - pDevContext = GetDeviceContext(hDevice); - if (pDevContext != NULL) - { - // Select a non default report descriptor - switch (pDevContext->driverMode) - { - case DM_BUTTON_AND_LED: - pBuffer = (PVOID)c_ButtonWithLedDescriptor; - cBytesToCopy = sizeof(c_ButtonWithLedDescriptor); - break; - case DM_SLIDER_SWITCH: - pBuffer = (PVOID)c_SliderSwitchDescriptor; - cBytesToCopy = sizeof(c_SliderSwitchDescriptor); - break; - case DM_SLIDER_SWITCH_AND_LED: - pBuffer = (PVOID)c_SliderSwitchWithLedDescriptor; - cBytesToCopy = sizeof(c_SliderSwitchWithLedDescriptor); - break; - case DM_LED_ONLY: - pBuffer = (PVOID)c_LedOnlyDescriptor; - cBytesToCopy = sizeof(c_LedOnlyDescriptor); - break; - default: - break; - } - } - if (cBytesToCopy != 0) - { - status = WdfMemoryCopyFromBuffer(memory, 0, pBuffer, cBytesToCopy); - if (NT_SUCCESS(status)) - { - // Report how many bytes were copied - WdfRequestSetInformation(hRequest, cBytesToCopy); - } - else // WdfMemoryCopyFromBuffer failed - { - TraceErr(DBG_IOCTL, "(%!FUNC!) WdfMemoryCopyFromBuffer failed %!STATUS!\n", status); - } - } - else // report length is zero - { - status = STATUS_INVALID_DEVICE_STATE; - TraceErr(DBG_IOCTL, "(%!FUNC!) c_DefaultHidDescriptor's reportLength is zero, %!STATUS!\n", status); - } - } - else // WdfRequestRetrieveOutputMemory failed - { - TraceErr(DBG_IOCTL, "(%!FUNC!)WdfRequestRetrieveOutputMemory failed %!STATUS!\n", status); - - } - - TraceVerbose(DBG_IOCTL, "(%!FUNC!) Exit = %!STATUS!\n", status); - return status; -} - - - -// Fill in the given struct _HID_DEVICE_ATTRIBUTES -// -NTSTATUS HidFx2GetDeviceAttributes(_In_ WDFREQUEST hRequest) -{ - NTSTATUS status = STATUS_SUCCESS; - PHID_DEVICE_ATTRIBUTES pDeviceAttributes = NULL; - PUSB_DEVICE_DESCRIPTOR pUsbDeviceDescriptor = NULL; - PDEVICE_EXTENSION pDeviceInfo = NULL; - - TraceVerbose(DBG_IOCTL, "(%!FUNC!) Entry\n"); - - pDeviceInfo = GetDeviceContext(WdfIoQueueGetDevice(WdfRequestGetIoQueue(hRequest))); - status = WdfRequestRetrieveOutputBuffer(hRequest, sizeof (HID_DEVICE_ATTRIBUTES), &pDeviceAttributes, NULL); - if (NT_SUCCESS(status)) - { - // Retrieve USB device descriptor saved in device context - pUsbDeviceDescriptor = WdfMemoryGetBuffer(pDeviceInfo->hDeviceDescriptor, NULL); - pDeviceAttributes->Size = sizeof (HID_DEVICE_ATTRIBUTES); - pDeviceAttributes->VendorID = pUsbDeviceDescriptor->idVendor; - pDeviceAttributes->ProductID = pUsbDeviceDescriptor->idProduct; - pDeviceAttributes->VersionNumber = pUsbDeviceDescriptor->bcdDevice; - // Report how many bytes were copied - WdfRequestSetInformation(hRequest, sizeof (HID_DEVICE_ATTRIBUTES)); - } - else // WdfRequestRetrieveOutputBuffer failed - { - TraceErr(DBG_IOCTL, "(%!FUNC!) WdfRequestRetrieveOutputBuffer failed %!STATUS!\n", status); - } - - TraceVerbose(DBG_IOCTL, "(%!FUNC!) Exit = %!STATUS!\n", status); - return status; -} - - - -// Pass down Idle notification request to lower driver -// -NTSTATUS HidFx2SendIdleNotification(_In_ WDFREQUEST hRequest) -{ - NTSTATUS status = STATUS_SUCCESS; - WDF_REQUEST_SEND_OPTIONS options; - WDFIOTARGET hNextLowerDriver; - WDFDEVICE hDevice; - PIO_STACK_LOCATION pCurrentIrpStack = NULL; - IO_STACK_LOCATION nextIrpStack; - - TraceVerbose(DBG_IOCTL, "(%!FUNC!) Entry\n"); - - hDevice = WdfIoQueueGetDevice(WdfRequestGetIoQueue(hRequest)); - pCurrentIrpStack = IoGetCurrentIrpStackLocation(WdfRequestWdmGetIrp(hRequest)); - - // Convert the request to corresponding USB Idle notification request - if (pCurrentIrpStack->Parameters.DeviceIoControl.InputBufferLength >= sizeof(HID_SUBMIT_IDLE_NOTIFICATION_CALLBACK_INFO)) - { - ASSERT(sizeof(HID_SUBMIT_IDLE_NOTIFICATION_CALLBACK_INFO) == sizeof(USB_IDLE_CALLBACK_INFO)); - #pragma warning(suppress :4127) // conditional expression is constant warning - if (sizeof(HID_SUBMIT_IDLE_NOTIFICATION_CALLBACK_INFO) == sizeof(USB_IDLE_CALLBACK_INFO)) - { - // prepare next stack location - RtlZeroMemory(&nextIrpStack, sizeof(IO_STACK_LOCATION)); - nextIrpStack.MajorFunction = pCurrentIrpStack->MajorFunction; - nextIrpStack.Parameters.DeviceIoControl.InputBufferLength = pCurrentIrpStack->Parameters.DeviceIoControl.InputBufferLength; - nextIrpStack.Parameters.DeviceIoControl.Type3InputBuffer = pCurrentIrpStack->Parameters.DeviceIoControl.Type3InputBuffer; - nextIrpStack.Parameters.DeviceIoControl.IoControlCode = IOCTL_INTERNAL_USB_SUBMIT_IDLE_NOTIFICATION; - nextIrpStack.DeviceObject = WdfIoTargetWdmGetTargetDeviceObject(WdfDeviceGetIoTarget(hDevice)); - - // Format the I/O request for the driver's local I/O target by using the contents of the specified WDM I/O stack location structure. - WdfRequestWdmFormatUsingStackLocation(hRequest, &nextIrpStack); - - // Send the request down using Fire and forget option. - WDF_REQUEST_SEND_OPTIONS_INIT(&options, WDF_REQUEST_SEND_OPTION_SEND_AND_FORGET); - hNextLowerDriver = WdfDeviceGetIoTarget(hDevice); - if (WdfRequestSend(hRequest, hNextLowerDriver, &options) == FALSE) - { - status = STATUS_UNSUCCESSFUL; - } - } - else // Incorrect DeviceIoControl.InputBufferLength - { - status = STATUS_INFO_LENGTH_MISMATCH; - TraceErr(DBG_IOCTL, "(%!FUNC!) Incorrect DeviceIoControl.InputBufferLength, %!STATUS!\n", status); - return status; - } - } - else // DeviceIoControl.InputBufferLength too small - { - status = STATUS_BUFFER_TOO_SMALL; - TraceErr(DBG_IOCTL, "(%!FUNC!) DeviceIoControl.InputBufferLength too small, %!STATUS!\n", status); - return status; - } - - TraceVerbose(DBG_IOCTL, "(%!FUNC!) Exit = %!STATUS!\n", status); - return status; -} - - - - - |