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Diffstat (limited to 'spb/SkeletonI2C/driver.cpp')
| -rw-r--r-- | spb/SkeletonI2C/driver.cpp | 454 |
1 files changed, 0 insertions, 454 deletions
diff --git a/spb/SkeletonI2C/driver.cpp b/spb/SkeletonI2C/driver.cpp deleted file mode 100644 index e6c58771..00000000 --- a/spb/SkeletonI2C/driver.cpp +++ /dev/null @@ -1,454 +0,0 @@ -/*++ - -Copyright (c) Microsoft Corporation. All rights reserved. - -Module Name: - - driver.cpp - -Abstract: - - This module contains the WDF driver initialization - functions for the controller driver. - -Environment: - - kernel-mode only - -Revision History: - ---*/ - -#include "internal.h" -#include "driver.h" -#include "device.h" -#include "ntstrsafe.h" - -#include "driver.tmh" - -NTSTATUS -#pragma prefast(suppress:__WARNING_DRIVER_FUNCTION_TYPE, "thanks, i know this already") -DriverEntry( - _In_ PDRIVER_OBJECT DriverObject, - _In_ PUNICODE_STRING RegistryPath - ) -{ - WDF_DRIVER_CONFIG driverConfig; - WDF_OBJECT_ATTRIBUTES driverAttributes; - - WDFDRIVER fxDriver; - - NTSTATUS status; - - WPP_INIT_TRACING(DriverObject, RegistryPath); - - FuncEntry(TRACE_FLAG_WDFLOADING); - - WDF_DRIVER_CONFIG_INIT(&driverConfig, OnDeviceAdd); - driverConfig.DriverPoolTag = SI2C_POOL_TAG; - - WDF_OBJECT_ATTRIBUTES_INIT(&driverAttributes); - driverAttributes.EvtCleanupCallback = OnDriverCleanup; - - status = WdfDriverCreate( - DriverObject, - RegistryPath, - &driverAttributes, - &driverConfig, - &fxDriver); - - if (!NT_SUCCESS(status)) - { - Trace( - TRACE_LEVEL_ERROR, - TRACE_FLAG_WDFLOADING, - "Error creating WDF driver object - %!STATUS!", - status); - - goto exit; - } - - Trace( - TRACE_LEVEL_VERBOSE, - TRACE_FLAG_WDFLOADING, - "Created WDFDRIVER %p", - fxDriver); - -exit: - - FuncExit(TRACE_FLAG_WDFLOADING); - - return status; -} - -VOID -OnDriverCleanup( - _In_ WDFOBJECT Object - ) -{ - UNREFERENCED_PARAMETER(Object); - - WPP_CLEANUP(NULL); -} - -NTSTATUS -OnDeviceAdd( - _In_ WDFDRIVER FxDriver, - _Inout_ PWDFDEVICE_INIT FxDeviceInit - ) -/*++ - - Routine Description: - - This routine creates the device object for an SPB - controller and the device's child objects. - - Arguments: - - FxDriver - the WDF driver object handle - FxDeviceInit - information about the PDO that we are loading on - - Return Value: - - Status - ---*/ -{ - FuncEntry(TRACE_FLAG_WDFLOADING); - - PPBC_DEVICE pDevice; - NTSTATUS status; - - UNREFERENCED_PARAMETER(FxDriver); - - // - // Configure DeviceInit structure - // - - status = SpbDeviceInitConfig(FxDeviceInit); - - if (!NT_SUCCESS(status)) - { - Trace( - TRACE_LEVEL_ERROR, - TRACE_FLAG_WDFLOADING, - "Failed SpbDeviceInitConfig() for WDFDEVICE_INIT %p - %!STATUS!", - FxDeviceInit, - status); - - goto exit; - } - - // - // Setup PNP/Power callbacks. - // - - { - WDF_PNPPOWER_EVENT_CALLBACKS pnpCallbacks; - WDF_PNPPOWER_EVENT_CALLBACKS_INIT(&pnpCallbacks); - - pnpCallbacks.EvtDevicePrepareHardware = OnPrepareHardware; - pnpCallbacks.EvtDeviceReleaseHardware = OnReleaseHardware; - pnpCallbacks.EvtDeviceD0Entry = OnD0Entry; - pnpCallbacks.EvtDeviceD0Exit = OnD0Exit; - pnpCallbacks.EvtDeviceSelfManagedIoInit = OnSelfManagedIoInit; - pnpCallbacks.EvtDeviceSelfManagedIoCleanup = OnSelfManagedIoCleanup; - - WdfDeviceInitSetPnpPowerEventCallbacks(FxDeviceInit, &pnpCallbacks); - } - - // - // Note: The SPB class extension sets a default - // security descriptor to allow access to - // user-mode drivers. This can be overridden - // by calling WdfDeviceInitAssignSDDLString() - // with the desired setting. This must be done - // after calling SpbDeviceInitConfig() but - // before WdfDeviceCreate(). - // - - - // - // Create the device. - // - - { - WDF_OBJECT_ATTRIBUTES deviceAttributes; - WDF_OBJECT_ATTRIBUTES_INIT_CONTEXT_TYPE(&deviceAttributes, PBC_DEVICE); - WDFDEVICE fxDevice; - - status = WdfDeviceCreate( - &FxDeviceInit, - &deviceAttributes, - &fxDevice); - - if (!NT_SUCCESS(status)) - { - Trace( - TRACE_LEVEL_ERROR, - TRACE_FLAG_WDFLOADING, - "Failed to create WDFDEVICE from WDFDEVICE_INIT %p - %!STATUS!", - FxDeviceInit, - status); - - goto exit; - } - - pDevice = GetDeviceContext(fxDevice); - NT_ASSERT(pDevice != NULL); - - pDevice->FxDevice = fxDevice; - } - - // - // Ensure device is disable-able - // - - { - WDF_DEVICE_STATE deviceState; - WDF_DEVICE_STATE_INIT(&deviceState); - - deviceState.NotDisableable = WdfFalse; - WdfDeviceSetDeviceState(pDevice->FxDevice, &deviceState); - } - - // - // Bind a SPB controller object to the device. - // - - { - SPB_CONTROLLER_CONFIG spbConfig; - SPB_CONTROLLER_CONFIG_INIT(&spbConfig); - - // - // Register for target connect callback. The driver - // does not need to respond to target disconnect. - // - - spbConfig.EvtSpbTargetConnect = OnTargetConnect; - - // - // Register for IO callbacks. - // - - spbConfig.ControllerDispatchType = WdfIoQueueDispatchSequential; - spbConfig.PowerManaged = WdfTrue; - spbConfig.EvtSpbIoRead = OnRead; - spbConfig.EvtSpbIoWrite = OnWrite; - spbConfig.EvtSpbIoSequence = OnSequence; - spbConfig.EvtSpbControllerLock = OnControllerLock; - spbConfig.EvtSpbControllerUnlock = OnControllerUnlock; - - status = SpbDeviceInitialize(pDevice->FxDevice, &spbConfig); - - if (!NT_SUCCESS(status)) - { - Trace( - TRACE_LEVEL_ERROR, - TRACE_FLAG_WDFLOADING, - "Failed SpbDeviceInitialize() for WDFDEVICE %p - %!STATUS!", - pDevice->FxDevice, - status); - - goto exit; - } - - // - // Register for IO other callbacks. - // - - SpbControllerSetIoOtherCallback( - pDevice->FxDevice, - OnOther, - OnOtherInCallerContext); - } - - // - // Set target object attributes. - // - - { - WDF_OBJECT_ATTRIBUTES targetAttributes; - WDF_OBJECT_ATTRIBUTES_INIT_CONTEXT_TYPE(&targetAttributes, PBC_TARGET); - - SpbControllerSetTargetAttributes(pDevice->FxDevice, &targetAttributes); - } - - // - // Set request object attributes. - // - - { - WDF_OBJECT_ATTRIBUTES requestAttributes; - WDF_OBJECT_ATTRIBUTES_INIT_CONTEXT_TYPE(&requestAttributes, PBC_REQUEST); - - // - // NOTE: Be mindful when registering for EvtCleanupCallback or - // EvtDestroyCallback. IO requests arriving in the class - // extension, but not presented to the driver (due to - // cancellation), will still have their cleanup and destroy - // callbacks invoked. - // - - SpbControllerSetRequestAttributes(pDevice->FxDevice, &requestAttributes); - } - - // - // Create an interrupt object, interrupt spinlock, - // and register callbacks. - // - - { - // - // Create the interrupt spinlock. - // - - WDF_OBJECT_ATTRIBUTES attributes; - WDF_OBJECT_ATTRIBUTES_INIT(&attributes); - attributes.ParentObject = pDevice->FxDevice; - - WDFSPINLOCK interruptLock; - - status = WdfSpinLockCreate( - &attributes, - &interruptLock); - - if (!NT_SUCCESS(status)) - { - Trace( - TRACE_LEVEL_ERROR, - TRACE_FLAG_WDFLOADING, - "Failed to create interrupt spinlock for WDFDEVICE %p - %!STATUS!", - pDevice->FxDevice, - status); - - goto exit; - } - - // - // Create the interrupt object. - // - - WDF_INTERRUPT_CONFIG interruptConfig; - - WDF_INTERRUPT_CONFIG_INIT( - &interruptConfig, - OnInterruptIsr, - OnInterruptDpc); - - interruptConfig.SpinLock = interruptLock; - - status = WdfInterruptCreate( - pDevice->FxDevice, - &interruptConfig, - WDF_NO_OBJECT_ATTRIBUTES, - &pDevice->InterruptObject); - - if (!NT_SUCCESS(status)) - { - Trace( - TRACE_LEVEL_ERROR, - TRACE_FLAG_WDFLOADING, - "Failed to create interrupt object for WDFDEVICE %p - %!STATUS!", - pDevice->FxDevice, - status); - - goto exit; - } - } - - // - // Create the delay timer to stall between transfers. - // - { - WDF_TIMER_CONFIG wdfTimerConfig; - WDF_OBJECT_ATTRIBUTES timerAttributes; - - WDF_TIMER_CONFIG_INIT(&wdfTimerConfig, OnDelayTimerExpired); - WDF_OBJECT_ATTRIBUTES_INIT(&timerAttributes); - timerAttributes.ParentObject = pDevice->FxDevice; - - status = WdfTimerCreate( - &wdfTimerConfig, - &timerAttributes, - &(pDevice->DelayTimer) - ); - - if (!NT_SUCCESS(status)) - { - Trace( - TRACE_LEVEL_ERROR, - TRACE_FLAG_WDFLOADING, - "Failed to create delay timer for WDFDEVICE %p - %!STATUS!", - pDevice->FxDevice, - status); - - goto exit; - } - } - - // - // Create the spin lock to synchronize access - // to the controller driver. - // - - WDF_OBJECT_ATTRIBUTES attributes; - WDF_OBJECT_ATTRIBUTES_INIT(&attributes); - attributes.ParentObject = pDevice->FxDevice; - - status = WdfSpinLockCreate( - &attributes, - &pDevice->Lock); - - if (!NT_SUCCESS(status)) - { - Trace( - TRACE_LEVEL_ERROR, - TRACE_FLAG_WDFLOADING, - "Failed to create device spinlock for WDFDEVICE %p - %!STATUS!", - pDevice->FxDevice, - status); - - goto exit; - } - - // - // Configure idle settings to use system - // managed idle timeout. - // - { - WDF_DEVICE_POWER_POLICY_IDLE_SETTINGS idleSettings; - WDF_DEVICE_POWER_POLICY_IDLE_SETTINGS_INIT( - &idleSettings, - IdleCannotWakeFromS0); - - // - // Explicitly set initial idle timeout delay. - // - - idleSettings.IdleTimeoutType = SystemManagedIdleTimeoutWithHint; - idleSettings.IdleTimeout = IDLE_TIMEOUT_MONITOR_ON; - - status = WdfDeviceAssignS0IdleSettings( - pDevice->FxDevice, - &idleSettings); - - if (!NT_SUCCESS(status)) - { - Trace( - TRACE_LEVEL_ERROR, - TRACE_FLAG_WDFLOADING, - "Failed to initalize S0 idle settings for WDFDEVICE %p- %!STATUS!", - pDevice->FxDevice, - status); - - goto exit; - } - } - -exit: - - FuncExit(TRACE_FLAG_WDFLOADING); - - return status; -} |