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954 lines
33 KiB
954 lines
33 KiB
/*++
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Copyright (c) 1995 Microsoft Corporation
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Module Name:
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OHCIroot.c
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Abstract:
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The module manages the Root Hub of the OpenHCI controller.
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Environment:
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kernel mode only
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Notes:
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Revision History:
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03-22-96 : created jfuller
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05-25-96 : reworked kenray
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--*/
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#include "OpenHCI.h"
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// This is the data packet that the upper levels of the stack believe
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// are sending to a real hub. We intercept and interpret this packet.
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typedef struct _SETUP_PACKET {
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union {
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struct {
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UCHAR Recipient:
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5; // entity to recieve command
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UCHAR Type:
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2; // type of command
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UCHAR DirectionIn:
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1; // data transfer direction
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};
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struct {
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UCHAR RequestType; // request type code
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};
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};
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UCHAR Request; // command code
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USHORT wValue; // parameter
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USHORT wIndex; // another parameter
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USHORT wLength; // transfer length (same as
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// TransferBufferLength?)
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} SETUP_PACKET, *PSETUP_PACKET;
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#define SPrequest_GetStatus 0x0
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#define SPrequest_ClearFeature 0x1
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#define SPrequest_SetFeature 0x3
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#define SPrequest_SetAddress 0x5
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#define SPrequest_GetDescriptor 0x6
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#define SPrequest_SetDescriptor 0x7
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#define SPrequest_GetConfiguration 0x8
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#define SPrequest_SetConfiguration 0x9
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#define SPrequest_GetInterface 0xA
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#define SPrequest_SetInterface 0xB
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#define SPrequest_SyncFrame 0xC
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#define SPrecipient_Device 0
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#define SPrecipient_Interface 1
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#define SPrecipient_Endpoint 2
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#define SPrecipient_Other 3
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#define SPtype_Standard 0
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#define SPtype_Class 1
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#define SPtype_Vendor 2
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#define SPbmrt_In_Standard_Device 0x80 // 1000 0000
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#define SPbmrt_In_Standard_Interface 0x81 // 1000 0001
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#define SPbmrt_In_Standard_Endpoint 0x82 // 1000 0010
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#define SPbmrt_Out_Standard_Device 0x00 // 0000 0000
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#define SPbmrt_Out_Standard_Interface 0x01 // 0000 0001
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#define SPbmrt_Out_Standard_Endpoint 0x02 // 0000 0010
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#define SPbmrt_In_Class_Device 0xA0 // 1010 0000
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#define SPbmrt_In_Class_Other 0xA3 // 1010 0011
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#define SPbmrt_Out_Class_Device 0x20 // 0010 0000
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#define SPbmrt_Out_Class_Other 0x23 // 0010 0011
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//
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// Hub Class Feature Selectors, see Table 11-13 in the
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// Universal Serial Bus Specification Revision 1.0
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//
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//
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// Recipient Hub
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//
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#define C_HUB_LOCAL_POWER 0
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#define C_HUB_OVER_CURRENT 1
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//
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// Recipient Port
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//
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#define PORT_CONNECTION 0
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#define PORT_ENABLE 1
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#define PORT_SUSPEND 2
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#define PORT_OVER_CURRENT 3
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#define PORT_RESET 4
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#define PORT_POWER 8
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#define PORT_LOW_SPEED 9
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#define C_PORT_CONNECTION 16
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#define C_PORT_ENABLE 17
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#define C_PORT_SUSPEND 18
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#define C_PORT_OVER_CURRENT 19
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#define C_PORT_RESET 20
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// default descriptors for root hub
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UCHAR RH_DeviceDescriptor[] = {0x12, //bLength
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0x01, //bDescrpitorType
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0x00, 0x01, //bcdUSB
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0x09, //bDeviceClass
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0x01, //bDeviceSubClass
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0x00, //bDeviceProtocol
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0x08, //bMaxPacketSize0
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0x00, 0x00, //idVendor
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0x00, 0x00, //idProduct
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0x00, 0x00, //bcdDevice
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0x00, //iManufacturer
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0x00, //iProduct
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0x00, //iSerialNumber
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0x01};//bNumConfigurations
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UCHAR RH_ConfigurationDescriptor[] =
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/* Config Descriptor */
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{0x09, //bLength
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0x02, //bDescriptorType
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0x19, 0x00, //wTotalLength
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0x01, //bNumInterfaces
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0x01, //iConfigurationValue
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0x00, //iConfiguration
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0x40, //bmAttributes
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0x00, //MaxPower
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/* Interface Descriptor */
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0x09, //bLength
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0x04, //bDescriptorType
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0x00, //bInterfaceNumber
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0x00, //bAlternateSetting
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0x01, //bNumEndpoints
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0x09, //bInterfaceClass
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0x01, //bInterfaceSubClass
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0x00, //bInterfaceProtocol
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0x00, //iInterface
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/* Endpoint Descriptor */
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0x07, //bLength
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0x05, //bDescriptorType
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0x81, //bEndpointAddress
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0x03, //bmAttributes
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0x08, 0x00, //wMaxPacketSize
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0x0a};//bInterval
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UCHAR RH_HubDescriptor[] =
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{0x09, //bLength
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0x29, //bDescriptorType
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0x02, //bNbrPorts
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0x00, 0x00, //wHubCharacteristics
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0x00, // bPwrOn2PwrGood
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0x00}; // bHubContrCurrent
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void OpenHCI_CancelRootInterrupt(PDEVICE_OBJECT, PIRP);
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NTSTATUS
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OpenHCI_RootHubStartXfer(
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PDEVICE_OBJECT DeviceObject,
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PHCD_DEVICE_DATA DeviceData,
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PIRP Irp,
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PHCD_URB UsbRequest,
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PHCD_ENDPOINT Endpoint
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)
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{
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PSETUP_PACKET Pkt;
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PCHAR Buffer;
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KIRQL oldIrql;
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PHC_OPERATIONAL_REGISTER HC = DeviceData->HC;
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struct _URB_HCD_COMMON_TRANSFER *trans =
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&UsbRequest->HcdUrbCommonTransfer;
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ASSERT(NULL == Endpoint->HcdED);
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if (Endpoint->Type == USB_ENDPOINT_TYPE_CONTROL
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&& Endpoint->EndpointNumber == 0) {
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//
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// This is the default endpoint of the root hub
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//
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Pkt = (PSETUP_PACKET) & trans->Extension.u.SetupPacket[0];
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OpenHCI_KdPrintDD(DeviceData, OHCI_DBG_RH_TRACE,
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("'RootHub emulation: %02x %02x %04x %04x %04x\n",
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Pkt->RequestType, Pkt->Request,
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Pkt->wValue, Pkt->wIndex,
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Pkt->wLength));
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ASSERT(trans->TransferBufferLength == Pkt->wLength);
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if (trans->TransferBufferLength) {
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// This is cause an exception if any of the upper levels of the
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// USB stack (those that created this MDL) are misbehaving.
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Buffer = MmGetSystemAddressForMdl(trans->TransferBufferMDL);
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} else {
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Buffer = NULL;
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}
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switch (Pkt->Request) {
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case SPrequest_GetStatus:
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switch (Pkt->RequestType) {
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case SPbmrt_In_Class_Device:
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//
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// GetHubStatus
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//
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if (4 != trans->TransferBufferLength) {
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TRAP();
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break;
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}
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*((PULONG) Buffer) = ~HcRhS_DeviceRemoteWakeupEnable
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& READ_REGISTER_ULONG(&HC->HcRhStatus);
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trans->Status = USBD_STATUS_SUCCESS;
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return STATUS_SUCCESS;
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case SPbmrt_In_Class_Other:
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//
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// GetPortStatus
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//
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if (4 != trans->TransferBufferLength) {
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TRAP();
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break;
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}
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*((PULONG) Buffer) = ReadPortStatusFix(DeviceData,
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Pkt->wIndex - 1);
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LOGENTRY(G, 'gPRT', Pkt->wIndex, trans->TransferBufferLength, *((PULONG) Buffer));
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trans->TransferBufferLength = 4;
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trans->Status = USBD_STATUS_SUCCESS;
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return STATUS_SUCCESS;
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case SPbmrt_In_Standard_Device:
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if (0 == Pkt->wIndex && 2 == trans->TransferBufferLength) {
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Buffer[0] = 3; // Remote Wakeup & Self Powered
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Buffer[1] = 0;
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return STATUS_SUCCESS;
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}
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break;
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case SPbmrt_In_Standard_Interface:
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if (0 == Pkt->wIndex && 2 == trans->TransferBufferLength) {
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Buffer[0] = Buffer[0] = 0;
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return STATUS_SUCCESS;
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}
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break;
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case SPbmrt_In_Standard_Endpoint:
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if ((2 == trans->TransferBufferLength)
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&& ((1 == Pkt->wIndex) || (0 == Pkt->wIndex))) {
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Buffer[0] = Buffer[0] = 0;
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return STATUS_SUCCESS;
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}
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break;
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}
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break;
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case SPrequest_ClearFeature:
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if (SPbmrt_Out_Class_Other == Pkt->RequestType) {
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//
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// clear port feature
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//
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OpenHCI_KdPrintDD(DeviceData, OHCI_DBG_RH_TRACE,
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("'Clear Feature wValue = %x index = %x\n",
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Pkt->wValue, Pkt->wIndex));
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switch (Pkt->wValue) {
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case PORT_ENABLE:
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WRITE_REGISTER_ULONG(&HC->HcRhPortStatus[Pkt->wIndex - 1],
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HcRhPS_ClearPortEnable);
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break;
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case PORT_SUSPEND:
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WRITE_REGISTER_ULONG(&HC->HcRhPortStatus[Pkt->wIndex - 1],
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HcRhPS_ClearPortSuspend);
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break;
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case PORT_POWER:
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WRITE_REGISTER_ULONG(&HC->HcRhPortStatus[Pkt->wIndex - 1],
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HcRhPS_ClearPortPower);
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break;
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case C_PORT_CONNECTION:
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WRITE_REGISTER_ULONG(&HC->HcRhPortStatus[Pkt->wIndex - 1],
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HcRhPS_ClearConnectStatusChange);
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#if FAKEPORTCHANGE
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DeviceData->FakePortChange &= ~(1 << (Pkt->wIndex - 1));
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#endif
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break;
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case C_PORT_ENABLE:
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WRITE_REGISTER_ULONG(&HC->HcRhPortStatus[Pkt->wIndex - 1],
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HcRhPS_ClearPortEnableStatusChange);
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break;
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case C_PORT_SUSPEND:
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WRITE_REGISTER_ULONG(&HC->HcRhPortStatus[Pkt->wIndex - 1],
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HcRhPS_ClearPortSuspendStatusChange);
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break;
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case C_PORT_OVER_CURRENT:
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WRITE_REGISTER_ULONG(&HC->HcRhPortStatus[Pkt->wIndex - 1],
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HcRhPS_ClearPortOverCurrentChange);
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break;
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case C_PORT_RESET:
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WRITE_REGISTER_ULONG(&HC->HcRhPortStatus[Pkt->wIndex - 1],
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HcRhPS_ClearPortResetStatusChange);
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break;
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default:
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break;
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}
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trans->TransferBufferLength = 0;
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trans->Status = USBD_STATUS_SUCCESS;
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return STATUS_SUCCESS;
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} else if (SPbmrt_Out_Class_Device == Pkt->RequestType) {
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//
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// clear hub feature
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//
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switch (Pkt->wValue) {
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case C_HUB_LOCAL_POWER:
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// The OpenHCI Root Hub does not support the local power
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// status feature. The Local Power Status Change bit is
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// always read as '0'. See section 7.4.3 hcRhStatus in
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// the OpenHCI specification.
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break;
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case C_HUB_OVER_CURRENT:
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WRITE_REGISTER_ULONG(&HC->HcRhStatus, HcRhS_ClearOverCurrentIndicatorChange);
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break;
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default:
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break;
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}
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trans->TransferBufferLength = 0;
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trans->Status = USBD_STATUS_SUCCESS;
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return STATUS_SUCCESS;
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}
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break;
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case SPrequest_SetFeature:
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if (SPbmrt_Out_Class_Other == Pkt->RequestType) {
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//
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// set port feature
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//
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switch (Pkt->wValue) {
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case PORT_ENABLE:
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WRITE_REGISTER_ULONG(&HC->HcRhPortStatus[Pkt->wIndex - 1],
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HcRhPS_SetPortEnable);
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break;
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case PORT_SUSPEND:
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WRITE_REGISTER_ULONG(&HC->HcRhPortStatus[Pkt->wIndex - 1],
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HcRhPS_SetPortSuspend);
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break;
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case PORT_RESET:
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WRITE_REGISTER_ULONG(&HC->HcRhPortStatus[Pkt->wIndex - 1],
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HcRhPS_SetPortReset);
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break;
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case PORT_POWER:
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WRITE_REGISTER_ULONG(&HC->HcRhPortStatus[Pkt->wIndex - 1],
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HcRhPS_SetPortPower);
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break;
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}
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trans->TransferBufferLength = 0;
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trans->Status = USBD_STATUS_SUCCESS;
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return STATUS_SUCCESS;
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} else if (SPbmrt_Out_Class_Device == Pkt->RequestType) {
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//
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// set hub feature (no hub features can be set)
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//
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switch (Pkt->wValue) {
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default:
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break;
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}
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trans->TransferBufferLength = 0;
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trans->Status = USBD_STATUS_SUCCESS;
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return STATUS_SUCCESS;
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}
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break;
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case SPrequest_SetAddress:
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;
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if (SPbmrt_Out_Standard_Device == Pkt->RequestType) {
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if (DeviceData->RootHubAddress != (char) Pkt->wValue) {
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Endpoint->EpFlags &= ~EP_ROOT_HUB;
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ASSERT(NULL == DeviceData->RootHubInterrupt);
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//
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// If you change the address while there is an open
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// endpoint
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// to the root hub interrupt than you strand that
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// endpoint.
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// You really should close this endpoint before changing
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// the
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// address.
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//
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// if (DeviceData->RootHubInterrupt)
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// {
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// ExFreePool (DeviceData->RootHubInterrupt);
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// DeviceData->RootHubInterrupt = 0;
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// }
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}
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DeviceData->RootHubAddress = (char) Pkt->wValue;
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trans->TransferBufferLength = 0;
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trans->Status = USBD_STATUS_SUCCESS;
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return STATUS_SUCCESS;
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}
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break;
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case SPrequest_GetDescriptor:
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{
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union {
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UCHAR rc[4];
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ULONG rl;
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USHORT rs;
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} ports;
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ULONG length;
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switch (Pkt->RequestType) {
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case SPbmrt_In_Class_Device:
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{
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UCHAR scratch[100];
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PUSB_HUB_DESCRIPTOR hubDescriptor;
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HC_RH_DESCRIPTOR_A descrA;
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//
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// Get Descriptor, Hub
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//
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OHCI_ASSERT(sizeof(scratch)>sizeof(RH_HubDescriptor));
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hubDescriptor = (PUSB_HUB_DESCRIPTOR) scratch;
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RtlCopyMemory(scratch,
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RH_HubDescriptor,
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sizeof(RH_DeviceDescriptor));
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descrA.ul =
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READ_REGISTER_ULONG(&HC->HcRhDescriptorA.ul);
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// this will set
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// bNumberOfPorts, wHubCharacteristics & bPowerOnToPowerGood
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RtlCopyMemory(&hubDescriptor->bNumberOfPorts,
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&descrA,
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sizeof(descrA));
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LOGENTRY(G, 'rhCH', DeviceData, descrA.ul, 0);
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hubDescriptor->bHubControlCurrent = 0;
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ports.rl = READ_REGISTER_ULONG(&HC->HcRhDescriptorB.ul);
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if (hubDescriptor->bNumberOfPorts < 8) {
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hubDescriptor->bDescriptorLength = 9;
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hubDescriptor->bRemoveAndPowerMask[0] = ports.rc[0];
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hubDescriptor->bRemoveAndPowerMask[1] = ports.rc[2];
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} else {
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hubDescriptor->bDescriptorLength = 11;
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RtlCopyMemory(&hubDescriptor->bRemoveAndPowerMask[0],
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&ports,
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sizeof(ports));
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}
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trans->TransferBufferLength
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= MIN(hubDescriptor->bDescriptorLength, trans->TransferBufferLength);
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RtlCopyMemory(Buffer, scratch, trans->TransferBufferLength);
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trans->Status = USBD_STATUS_SUCCESS;
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return STATUS_SUCCESS;
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}
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case SPbmrt_In_Standard_Device:
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{
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PUSB_DEVICE_DESCRIPTOR deviceDescriptor;
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PUSB_CONFIGURATION_DESCRIPTOR configDescriptor;
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UCHAR scratch[100];
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OHCI_ASSERT(sizeof(scratch)>sizeof(RH_DeviceDescriptor));
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OHCI_ASSERT(sizeof(scratch)>sizeof(RH_ConfigurationDescriptor));
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//
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// Get Descriptor
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//
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switch(Pkt->wValue) {
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case 0x100:
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{ // Device Descriptor
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deviceDescriptor = (PUSB_DEVICE_DESCRIPTOR) scratch;
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RtlCopyMemory(scratch,
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RH_DeviceDescriptor,
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sizeof(RH_DeviceDescriptor));
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length =
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MIN(sizeof(RH_DeviceDescriptor), Pkt->wLength);
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deviceDescriptor->idVendor =
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DeviceData->VendorID;
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deviceDescriptor->idProduct =
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DeviceData->DeviceID;
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// deviceDescriptor->bcdDevice =
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// DeviceData->RevisionID;
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}
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break;
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case 0x200:
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{ // Configuration Descriptor
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configDescriptor = (PUSB_CONFIGURATION_DESCRIPTOR) scratch;
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RtlCopyMemory(scratch,
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RH_ConfigurationDescriptor,
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sizeof(RH_ConfigurationDescriptor));
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length = MIN(sizeof(RH_ConfigurationDescriptor),
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Pkt->wLength);
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}
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break;
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default:
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TRAP(); // should not get here, if we do then
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// it is probably a bug in the hub driver
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trans->Status = USBD_STATUS_STALL_PID;
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trans->TransferBufferLength = 0; // No data transferred
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return STATUS_IO_DEVICE_ERROR;
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}
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RtlCopyMemory(Buffer, scratch, length);
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trans->TransferBufferLength = length;
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trans->Status = USBD_STATUS_SUCCESS;
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return STATUS_SUCCESS;
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}
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default:
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;
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}
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break;
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}
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case SPrequest_GetConfiguration:
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if (SPbmrt_In_Standard_Device == Pkt->RequestType &&
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1 == trans->TransferBufferLength) {
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*Buffer = (CHAR) DeviceData->RootHubConfig;
|
|
trans->Status = USBD_STATUS_SUCCESS;
|
|
return STATUS_SUCCESS;
|
|
}
|
|
break;
|
|
|
|
case SPrequest_SetConfiguration:
|
|
if (SPbmrt_Out_Standard_Device == Pkt->RequestType &&
|
|
0 == trans->TransferBufferLength &&
|
|
0 == (Pkt->wValue & ~1)) { // Only configs of 0 and 1
|
|
// supported.
|
|
|
|
DeviceData->RootHubConfig = (char) Pkt->wValue;
|
|
trans->Status = USBD_STATUS_SUCCESS;
|
|
return STATUS_SUCCESS;
|
|
}
|
|
case SPrequest_SetDescriptor:
|
|
case SPrequest_GetInterface: // We support only one interface.
|
|
case SPrequest_SetInterface: // We support only one interface.
|
|
case SPrequest_SyncFrame:
|
|
default:
|
|
;
|
|
}
|
|
trans->Status = USBD_STATUS_STALL_PID;
|
|
trans->TransferBufferLength = 0; // No data transferred
|
|
return STATUS_IO_DEVICE_ERROR;
|
|
|
|
} else if (Endpoint->Type == USB_ENDPOINT_TYPE_INTERRUPT
|
|
&& Endpoint->EndpointNumber == 1
|
|
&& DeviceData->RootHubConfig != 0) {
|
|
|
|
NTSTATUS status;
|
|
OpenHCI_KdPrintDD(DeviceData, OHCI_DBG_RH_TRACE,
|
|
("'***** Insert REQUEST for Interrupt \n\n"));
|
|
|
|
ASSERT(DeviceData->RootHubInterrupt == Endpoint);
|
|
|
|
status = CheckRootHub(DeviceData,
|
|
HC,
|
|
UsbRequest);
|
|
|
|
if (status == STATUS_PENDING) {
|
|
KeAcquireSpinLock(&Endpoint->QueueLock, &oldIrql);
|
|
trans->Status = HCD_PENDING_STATUS_QUEUED;
|
|
InsertTailList(&Endpoint->RequestQueue, &trans->hca.HcdListEntry);
|
|
KeReleaseSpinLock(&Endpoint->QueueLock, oldIrql);
|
|
|
|
if (NULL == trans->UrbLink) {
|
|
Irp->IoStatus.Status = STATUS_PENDING;
|
|
IoMarkIrpPending(Irp);
|
|
IoSetCancelRoutine(Irp, OpenHCI_CancelRootInterrupt);
|
|
if (Irp->Cancel) {
|
|
struct _URB_HCD_COMMON_TRANSFER *nextTrans;
|
|
if (IoSetCancelRoutine(Irp, NULL)) {
|
|
while (trans) {
|
|
nextTrans = &trans->UrbLink->HcdUrbCommonTransfer;
|
|
KeAcquireSpinLock(&Endpoint->QueueLock, &oldIrql);
|
|
RemoveEntryList(&trans->hca.HcdListEntry);
|
|
trans->Status = USBD_STATUS_CANCELED;
|
|
KeReleaseSpinLock(&Endpoint->QueueLock, oldIrql);
|
|
trans = nextTrans;
|
|
}
|
|
OpenHCI_CompleteIrp(DeviceObject, Irp, STATUS_CANCELLED);
|
|
return STATUS_CANCELLED;
|
|
} else {
|
|
return STATUS_CANCELLED;
|
|
}
|
|
}
|
|
}
|
|
WRITE_REGISTER_ULONG(&HC->HcInterruptEnable, HcInt_RootHubStatusChange);
|
|
}
|
|
return status;
|
|
}
|
|
//
|
|
// Unknown transfer to root hub
|
|
//
|
|
trans->Status = USBD_STATUS_DEV_NOT_RESPONDING;
|
|
trans->TransferBufferLength = 0;
|
|
return STATUS_IO_DEVICE_ERROR;
|
|
}
|
|
|
|
ULONG
|
|
OpenHCI_BuildRootHubStatusChange(
|
|
PHCD_DEVICE_DATA DeviceData,
|
|
PHC_OPERATIONAL_REGISTER HC
|
|
)
|
|
/*++
|
|
Routine Description:
|
|
Builds and returns a bitmap of the current root hub status changes.
|
|
|
|
Bit 0 = Hub change detected
|
|
Bit N = Port N change detected, where port N is one-based, not zero-based
|
|
--*/
|
|
{
|
|
ULONG changes;
|
|
ULONG portIndex;
|
|
ULONG mask;
|
|
ULONG portStatus;
|
|
|
|
// Loop over the ports and build a status change mask for each
|
|
// each port that has a current status change.
|
|
//
|
|
changes = 0;
|
|
|
|
for (portIndex = 0, mask = (1 << 1);
|
|
portIndex < DeviceData->NumberOfPorts;
|
|
portIndex++, mask <<= 1)
|
|
{
|
|
// Read the current port status
|
|
//
|
|
portStatus = ReadPortStatusFix(DeviceData, portIndex);
|
|
|
|
// Keep only the current port status change bits
|
|
//
|
|
portStatus &= (HcRhPS_ConnectStatusChange |
|
|
HcRhPS_PortEnableStatusChange |
|
|
HcRhPS_PortSuspendStatusChange |
|
|
HcRhPS_OverCurrentIndicatorChange |
|
|
HcRhPS_PortResetStatusChange);
|
|
|
|
if (portStatus)
|
|
{
|
|
changes |= mask;
|
|
}
|
|
|
|
LOGENTRY(G, 'prtS', changes, portStatus, portIndex);
|
|
}
|
|
|
|
// Read the current status of the hub itself
|
|
//
|
|
portStatus = READ_REGISTER_ULONG(&HC->HcRhStatus);
|
|
|
|
// Keep only the current hub status change bits
|
|
//
|
|
portStatus &= (HcRhS_LocalPowerStatusChange |
|
|
HcRhS_OverCurrentIndicatorChange);
|
|
|
|
if (portStatus)
|
|
{
|
|
changes |= 1; // Bit 0 is for the hub itself.
|
|
}
|
|
|
|
return changes;
|
|
}
|
|
|
|
|
|
void
|
|
EmulateRootHubInterruptXfer(
|
|
PHCD_DEVICE_DATA DeviceData,
|
|
PHC_OPERATIONAL_REGISTER HC
|
|
)
|
|
/*++
|
|
Routine Description:
|
|
Emulates an interupt pipe to the Root Hubs #1 Endpoint.
|
|
|
|
We Pop an entry off of the URB request queue and satisfy
|
|
it with the current state of the Root hub status registers.
|
|
If there is no outstanding request then disable this
|
|
interrupt.
|
|
|
|
--*/
|
|
{
|
|
PHCD_ENDPOINT Endpoint = DeviceData->RootHubInterrupt;
|
|
PLIST_ENTRY entry;
|
|
KIRQL oldIrql;
|
|
PHCD_URB UsbRequest;
|
|
ULONG changes;
|
|
PCHAR buffer;
|
|
PDRIVER_CANCEL oldCancel;
|
|
struct _URB_HCD_COMMON_TRANSFER *trans;
|
|
|
|
// mask off the interrupt status change
|
|
WRITE_REGISTER_ULONG(&HC->HcInterruptStatus, HcInt_RootHubStatusChange);
|
|
|
|
// Get a bitmap of the current root hub status changes
|
|
//
|
|
changes = OpenHCI_BuildRootHubStatusChange(DeviceData, HC);
|
|
|
|
if (0 == changes) {
|
|
OpenHCI_KdPrintDD(DeviceData, OHCI_DBG_RH_TRACE,
|
|
("'RH Interrupt no change \n\n"));
|
|
return;
|
|
}
|
|
KeAcquireSpinLock(&Endpoint->QueueLock, &oldIrql);
|
|
if (IsListEmpty(&Endpoint->RequestQueue)) {
|
|
|
|
// disable interrupts for rh status change
|
|
|
|
WRITE_REGISTER_ULONG(&HC->HcInterruptDisable,
|
|
HcInt_RootHubStatusChange);
|
|
|
|
KeReleaseSpinLock(&Endpoint->QueueLock, oldIrql);
|
|
|
|
OpenHCI_KdPrintDD(DeviceData, OHCI_DBG_RH_ERROR,
|
|
("'*******WARNING*****\n"));
|
|
OpenHCI_KdPrintDD(DeviceData, OHCI_DBG_RH_ERROR,
|
|
("'!!! RH Interrupt no IRP QUEUED \n"));
|
|
OpenHCI_KdPrintDD(DeviceData, OHCI_DBG_RH_ERROR,
|
|
("'Disable RH interrupt\n"));
|
|
return;
|
|
}
|
|
entry = RemoveHeadList(&Endpoint->RequestQueue);
|
|
KeReleaseSpinLock(&Endpoint->QueueLock, oldIrql);
|
|
|
|
UsbRequest = CONTAINING_RECORD(entry,
|
|
HCD_URB,
|
|
HcdUrbCommonTransfer.hca.HcdListEntry);
|
|
trans = &UsbRequest->HcdUrbCommonTransfer;
|
|
|
|
OpenHCI_KdPrintDD(DeviceData, OHCI_DBG_RH_TRACE,
|
|
("'RH Interrupt completing URB %x\n", UsbRequest));
|
|
|
|
if (trans->TransferBufferLength &&
|
|
(buffer = MmGetSystemAddressForMdl(trans->TransferBufferMDL)) != NULL)
|
|
{
|
|
RtlCopyMemory(buffer, &changes, trans->TransferBufferLength);
|
|
}
|
|
else
|
|
{
|
|
ASSERT(0);
|
|
}
|
|
trans->Status = USBD_STATUS_SUCCESS;
|
|
if (0 == trans->UrbLink) {
|
|
oldCancel = IoSetCancelRoutine(trans->hca.HcdIrp, NULL);
|
|
if (oldCancel) {
|
|
OpenHCI_CompleteIrp(DeviceData->DeviceObject,
|
|
trans->hca.HcdIrp,
|
|
USBD_STATUS_SUCCESS);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
NTSTATUS
|
|
CheckRootHub(PHCD_DEVICE_DATA DeviceData,
|
|
PHC_OPERATIONAL_REGISTER HC,
|
|
PHCD_URB UsbRequest
|
|
)
|
|
/*++
|
|
Routine Description:
|
|
before an interrupt transfer is queued this function checks the change
|
|
bits in the root hub registers, if any are set the it processes the request
|
|
immediately.
|
|
--*/
|
|
{
|
|
PHCD_ENDPOINT Endpoint = DeviceData->RootHubInterrupt;
|
|
ULONG changes;
|
|
PCHAR buffer;
|
|
PDRIVER_CANCEL oldCancel;
|
|
struct _URB_HCD_COMMON_TRANSFER *trans;
|
|
|
|
// Get a bitmap of the current root hub status changes
|
|
//
|
|
changes = OpenHCI_BuildRootHubStatusChange(DeviceData, HC);
|
|
|
|
if (0 == changes) {
|
|
OpenHCI_KdPrintDD(DeviceData, OHCI_DBG_RH_TRACE,
|
|
("'RH Interrupt no change \n\n"));
|
|
|
|
return STATUS_PENDING;
|
|
}
|
|
|
|
trans = &UsbRequest->HcdUrbCommonTransfer;
|
|
|
|
OpenHCI_KdPrintDD(DeviceData, OHCI_DBG_RH_TRACE,
|
|
("'RH Interrupt completing URB %x\n", UsbRequest));
|
|
|
|
if (trans->TransferBufferLength &&
|
|
(buffer = MmGetSystemAddressForMdl(trans->TransferBufferMDL)) != NULL)
|
|
{
|
|
RtlCopyMemory(buffer, &changes, trans->TransferBufferLength);
|
|
}
|
|
else
|
|
{
|
|
ASSERT(0);
|
|
}
|
|
trans->Status = USBD_STATUS_SUCCESS;
|
|
if (0 == trans->UrbLink) {
|
|
oldCancel = IoSetCancelRoutine(trans->hca.HcdIrp, NULL);
|
|
// complete the request
|
|
return STATUS_SUCCESS;
|
|
}
|
|
|
|
return STATUS_PENDING;
|
|
}
|
|
|
|
|
|
void
|
|
OpenHCI_CancelRootInterrupt(
|
|
PDEVICE_OBJECT DeviceObject,
|
|
PIRP Irp
|
|
)
|
|
/*++
|
|
Routine Description:
|
|
cancel an Irp queued for Interrupt Transfer.
|
|
|
|
Args:
|
|
DeviceObject the object to which the irp was originally directed.
|
|
Irp the poor doomed packet.
|
|
|
|
--*/
|
|
{
|
|
PHCD_DEVICE_DATA DeviceData;
|
|
PHCD_ENDPOINT Endpoint;
|
|
KIRQL oldIrql;
|
|
BOOLEAN lastURB;
|
|
struct _URB_HCD_COMMON_TRANSFER *Trans;
|
|
|
|
DeviceData = (PHCD_DEVICE_DATA) DeviceObject->DeviceExtension;
|
|
ASSERT(TRUE == Irp->Cancel);
|
|
|
|
Trans = &((PHCD_URB) URB_FROM_IRP(Irp))->HcdUrbCommonTransfer;
|
|
ASSERT(URB_FUNCTION_BULK_OR_INTERRUPT_TRANSFER == Trans->Function);
|
|
|
|
LOGENTRY(G, 'rCan', Irp, Trans, Trans->Status);
|
|
|
|
Endpoint = Trans->hca.HcdEndpoint;
|
|
ASSERT(Endpoint->EpFlags & EP_ROOT_HUB);
|
|
|
|
ASSERT(URB_FUNCTION_BULK_OR_INTERRUPT_TRANSFER == Trans->Function);
|
|
ASSERT(Trans->hca.HcdEndpoint == Endpoint);
|
|
|
|
ASSERT(Trans->UrbLink == NULL);
|
|
|
|
ASSERT(USBD_STATUS_CANCELING != Trans->Status);
|
|
|
|
if (USBD_STATUS_CANCELED != Trans->Status)
|
|
{
|
|
KeAcquireSpinLock(&Endpoint->QueueLock, &oldIrql);
|
|
|
|
// the item may have already been removed
|
|
if (Trans->hca.HcdListEntry.Flink != NULL)
|
|
{
|
|
OHCI_ASSERT(Trans->hca.HcdListEntry.Blink != NULL);
|
|
RemoveEntryList(&Trans->hca.HcdListEntry);
|
|
}
|
|
|
|
Trans->Status = USBD_STATUS_CANCELED;
|
|
|
|
KeReleaseSpinLock(&Endpoint->QueueLock, oldIrql);
|
|
}
|
|
|
|
IoReleaseCancelSpinLock(Irp->CancelIrql);
|
|
|
|
OpenHCI_CompleteIrp(DeviceObject, Irp, STATUS_CANCELLED);
|
|
}
|
|
|
|
|
|
ULONG
|
|
ReadPortStatusFix(
|
|
PHCD_DEVICE_DATA DeviceData,
|
|
ULONG PortIndex
|
|
)
|
|
/*++
|
|
Routine Description:
|
|
|
|
Reads a HcRhPortStatus register, working around some known hardware
|
|
bugs in early revs of the AMD K7 chipset.
|
|
|
|
When a Port Status read is performed while Viper is mastering the PCI
|
|
bus during ED & TD reads, the Port Status read may return either all
|
|
'0's or an address of an ED or TD (upper bits will match the HcHCCA
|
|
base address).
|
|
|
|
Quick & Dirty fix:
|
|
|
|
If a Port status read data has '1's in its upper reserved bits, the
|
|
read is invalid and should be discarded. If a Port status read
|
|
returns all '0's, then it is safe to read it a few more times, and if
|
|
the status is truly 00h, then the reads should all return 00h.
|
|
Otherwise, the 00h was an invalid read and the data which is
|
|
subsequently returned (with '0's in its reserved bits) is valid.
|
|
|
|
--*/
|
|
{
|
|
PULONG pulRegister;
|
|
ULONG ulRegVal;
|
|
int x;
|
|
|
|
pulRegister = &DeviceData->HC->HcRhPortStatus[PortIndex];
|
|
|
|
for (x = 0; x < 10; x++)
|
|
{
|
|
ulRegVal = READ_REGISTER_ULONG(pulRegister);
|
|
|
|
if ((ulRegVal) && (!(ulRegVal & HcRhPS_RESERVED)))
|
|
{
|
|
break;
|
|
}
|
|
else
|
|
{
|
|
KeStallExecutionProcessor(5);
|
|
}
|
|
}
|
|
|
|
|
|
#if FAKEPORTCHANGE
|
|
|
|
#pragma message("NOTE: enabling fake port change hack")
|
|
|
|
if (DeviceData->FakePortChange & (1 << PortIndex))
|
|
{
|
|
ulRegVal |= HcRhPS_ConnectStatusChange;
|
|
}
|
|
|
|
if (DeviceData->FakePortDisconnect & (1 << PortIndex))
|
|
{
|
|
ulRegVal &= ~HcRhPS_CurrentConnectStatus;
|
|
}
|
|
|
|
#endif
|
|
|
|
return ulRegVal;
|
|
}
|