STM32 USB 驱动原码

// I2cAnalyzerDevice.cpp // // Generated by DriverWizard 3.2.0 (Build 2485) // Requires DDK and DriverWorks // File created on 7/27/2009 // // This source file contains the implementation of a subclass of KDevice. // WDM drivers implement a subclass of KPnpDevice and override member // functions to handle requests (IRPs) from the system. // #include <vdw.h> #include <kusb.h> #include <kusbbusintf.h> #include "I2cAnalyzerDriver.h" #include "I2cAnalyzerDevice.h" #include "..\\intrface.h" #pragma hdrstop("I2cAnalyzer.pch") // Global driver trace object // TODO: Use KDebugOnlyTrace if you want trace messages // to appear only in checked builds. Use KTrace if // you want trace messages to always appear. Call // method SetOutputLevel to set the output threshold. extern KDebugOnlyTrace T; /////////////////////////////////////////////////////////////////////////////////////////////////// // I2cAnalyzerDevice::I2cAnalyzerDevice // This is the constructor for the class representing the Functional // Device Object, or FDO. It is derived from KPnpDevice, which builds // in automatic dispatching of subfunctions of IRP_MJ_POWER and IRP_MJ_PNP // to virtual member functions. // The object being constructed contains a data member (m_Lower) of type // KPnpLowerDevice. By initializing it, the driver binds the FDO to the // PDO and creates an interface to the upper edge of the system class driver. // // Arguments: // IN Pdo // Physical Device Object. This is a pointer to a system // device object that represents the physical device. // // IN Unit // Unit number to append to the device's base device name // to distinguish multiple units of this device type. // // Return Value: // none // I2cAnalyzerDevice::I2cAnalyzerDevice(PDEVICE_OBJECT Pdo, ULONG Unit) : KPnpDevice(Pdo, &GUID_DEVINTERFACE_I2CANALYZER) { if (!NT_SUCCESS(m_ConstructorStatus)) { T.Trace(TraceError, __FUNCTION__": Failed to create device I2cAnalyzerDevice" " unit number %d status %x\n", Unit, m_ConstructorStatus); ASSERT(FALSE); return; } // Initialize the lower device m_Lower.Initialize(this, Pdo); // Initialize the interface object. The wizard generates code // to support a single interface. You may create and add additional // interfaces. By default, the wizard uses InterfaceNumber 0 (the // first interface descriptor), ConfigurationValue 1 (the first // configuration descriptor), and initial interface alternate // setting of 0. If your device has multiple interfaces or alternate // settings for an interface, you can add additional KUsbInterface // objects or adjust the parameters passed to this function. m_Interface.Initialize( m_Lower, //KUsbLowerDevice 0, //InterfaceNumber 1, //ConfigurationValue 0 //Initial Interface Alternate Setting ); // Initialize each Pipe object Ep1In.Initialize(m_Lower, 0x81); //16); Ep1Out.Initialize(m_Lower, 0x01); // 16); Ep2In.Initialize(m_Lower, 0x82); //, 4096); //64); Ep3Out.Initialize(m_Lower, 0x03); //, 4096); //64); #if (_WDM_ && (WDM_MAJORVERSION > 1 ||((WDM_MAJORVERSION == 1) && (WDM_MINORVERSION >= 0x20)))) // Initialize USB direct client access interface if (STATUS_SUCCESS == m_BusIntf.Initialize(m_Lower.TopOfStack())) m_fBusIntfAvailable = TRUE; else m_fBusIntfAvailable = FALSE; #endif // Inform the base class of the lower edge device object SetLowerDevice(&m_Lower); // Initialize the PnP Policy settings to the "standard" policy SetPnpPolicy(); // TODO: Customize the PnP Policy for this device by setting // flags in m_Policies. // Initialize the Power Policy settings to the "standard" policy SetPowerPolicy(); // TODO: Customize the Power Policy for this device by setting // flags in m_PowerPolicies. } /////////////////////////////////////////////////////////////////////////////////////////////////// // I2cAnalyzerDevice::~I2cAnalyzerDevice // This is the destructor for the class. // // Arguments: // none // // Return Value: // none // I2cAnalyzerDevice::~I2cAnalyzerDevice() { } /////////////////////////////////////////////////////////////////////////////////////////////////// // I2cAnalyzerDevice::DefaultPnp // Default handler for IRP_MJ_PNP. // This routine just passes the IRP through to the lower device. IRPs // that correspond to any virtual members of KpnpDevice that handle // minor functions of IRP_MJ_PNP and that are not overridden get // passed to this routine. // // Arguments: // IN I // the plug and play IRP // // Return Value: // NTSTATUS // Result returned from lower device // NTSTATUS I2cAnalyzerDevice::DefaultPnp(KIrp I) { T.Trace(TraceInfo, __FUNCTION__"++. IRP %p\n", I); T << I; I.ForceReuseOfCurrentStackLocationInCalldown(); NTSTATUS status = m_Lower.PnpCall(this, I); T.Trace(TraceInfo, __FUNCTION__"--. IRP %p, STATUS %x\n", I, status); return status; } /////////////////////////////////////////////////////////////////////////////////////////////////// // I2cAnalyzerDevice::DefaultPower // Default handler for IRP_MJ_POWER. // This routine just passes the IRP through to the lower device. IRPs // that correspond to any virtual members of KpnpDevice that handle // minor functions of IRP_MJ_POWER and that are not overridden get // passed to this routine. // // Arguments: // IN I // the power IRP // // Return Value: // NTSTATUS // Result returned from lower device // NTSTATUS I2cAnalyzerDevice::DefaultPower(KIrp I) { T.Trace(TraceInfo, __FUNCTION__"++. IRP %p\n", I); T << I; I.IndicatePowerIrpProcessed(); I.CopyParametersDown(); NTSTATUS status = m_Lower.PnpPowerCall(this, I); T.Trace(TraceInfo, __FUNCTION__"--. IRP %p, STATUS %x\n", I, status); return status; } /////////////////////////////////////////////////////////////////////////////////////////////////// // I2cAnalyzerDevice::SystemControl // Default handler for IRP_MJ_SYSTEM_CONTROL. // This routine just passes the IRP through to the next device since // this driver is not a WMI provider. // // Arguments: // IN I // the system control (WMI) IRP // // Return Value: // NTSTATUS // Result returned from lower device // NTSTATUS I2cAnalyzerDevice::SystemControl(KIrp I) { T.Trace(TraceInfo, __FUNCTION__"++. IRP %p\n", I); T << I; NTSTATUS status = STATUS_SUCCESS; I.ForceReuseOfCurrentStackLocationInCalldown(); status = m_Lower.PnpCall(this, I); T.Trace(TraceInfo, __FUNCTION__"--. IRP %p, STATUS %x\n", I, status); return status; } /////////////////////////////////////////////////////////////////////////////////////////////////// // I2cAnalyzerDevice::OnStartDevice // Handler for IRP_MJ_PNP subfcn IRP_MN_START_DEVICE. // Initialize the hardware device. Typically, the driver initializes // physical resources here. Call I.AllocatedResources() for a list // of the raw resources that the system has assigned to the device, // or I.TranslatedResources() for the translated resource list. // // Arguments: // IN I // the start device IRP // // Return Value: // NTSTATUS // NTSTATUS I2cAnalyzerDevice::OnStartDevice(KIrp I) { T.Trace(TraceInfo, __FUNCTION__"++. IRP %p\n", I); NTSTATUS status = STATUS_SUCCESS; I.Information() = 0; status = STATUS_UNSUCCESSFUL; AC_STATUS acStatus = AC_SUCCESS; // By default, the wizard passes a ConfigurationValue of 1 to // ActivateConfiguration(). This corresponds to the first configuration // that the device reports in its configuration descriptor. If the device // supports multiple configurations, pass the appropriate // ConfigurationValue of the configuration to activate here. acStatus = m_Lower.ActivateConfiguration( 1 // ConfigurationValue 1 (the first configuration)