/* FUNCTIONS ******************************************************************/
+BOOLEAN
+NTAPI
+PciComputeNewCurrentSettings(IN PPCI_PDO_EXTENSION PdoExtension,
+ IN PCM_RESOURCE_LIST ResourceList)
+{
+ PCM_PARTIAL_RESOURCE_DESCRIPTOR Partial, InterruptResource;
+ PCM_PARTIAL_RESOURCE_DESCRIPTOR BaseResource, CurrentDescriptor;
+ PCM_PARTIAL_RESOURCE_DESCRIPTOR PreviousDescriptor;
+ CM_PARTIAL_RESOURCE_DESCRIPTOR ResourceArray[7];
+ PCM_FULL_RESOURCE_DESCRIPTOR FullList;
+ BOOLEAN DrainPartial, RangeChange;
+ ULONG i, j;
+ PPCI_FUNCTION_RESOURCES PciResources;
+ PAGED_CODE();
+
+ /* Make sure we have either no resources, or at least one */
+ ASSERT((ResourceList == NULL) || (ResourceList->Count == 1));
+
+ /* Initialize no partial, interrupt descriptor, or range change */
+ Partial = NULL;
+ InterruptResource = NULL;
+ RangeChange = FALSE;
+
+ /* Check if there's not actually any resources */
+ if (!(ResourceList) || !(ResourceList->Count))
+ {
+ /* Then just return the hardware update state */
+ return PdoExtension->UpdateHardware;
+ }
+
+ /* Print the new specified resource list */
+ PciDebugPrintCmResList(ResourceList);
+
+ /* Clear the temporary resource array */
+ for (i = 0; i < 7; i++) ResourceArray[i].Type = CmResourceTypeNull;
+
+ /* Loop the full resource descriptor */
+ FullList = ResourceList->List;
+ for (i = 0; i < ResourceList->Count; i++)
+ {
+ /* Initialize loop variables */
+ DrainPartial = FALSE;
+ BaseResource = NULL;
+
+ /* Loop the partial descriptors */
+ Partial = FullList->PartialResourceList.PartialDescriptors;
+ for (j = 0; j < FullList->PartialResourceList.Count; j++)
+ {
+ /* Check if we were supposed to drain a partial due to device data */
+ if (DrainPartial)
+ {
+ /* Draining complete, move on to the next descriptor then */
+ DrainPartial--;
+ continue;
+ }
+
+ /* Check what kind of descriptor this was */
+ switch (Partial->Type)
+ {
+ /* Base BAR resources */
+ case CmResourceTypePort:
+ case CmResourceTypeMemory:
+
+ /* Set it as the base */
+ ASSERT(BaseResource == NULL);
+ BaseResource = Partial;
+ break;
+
+ /* Interrupt resource */
+ case CmResourceTypeInterrupt:
+
+ /* Make sure it's a compatible (and the only) PCI interrupt */
+ ASSERT(InterruptResource == NULL);
+ ASSERT(Partial->u.Interrupt.Level == Partial->u.Interrupt.Vector);
+ InterruptResource = Partial;
+
+ /* Only 255 interrupts on x86/x64 hardware */
+ if (Partial->u.Interrupt.Level < 256)
+ {
+ /* Use the passed interrupt line */
+ PdoExtension->AdjustedInterruptLine = Partial->u.Interrupt.Level;
+ }
+ else
+ {
+ /* Invalid vector, so ignore it */
+ PdoExtension->AdjustedInterruptLine = 0;
+ }
+
+ break;
+
+ /* Check for specific device data */
+ case CmResourceTypeDevicePrivate:
+
+ /* Check what kind of data this was */
+ switch (Partial->u.DevicePrivate.Data[0])
+ {
+ /* Not used in the driver yet */
+ case 1:
+ UNIMPLEMENTED;
+ while (TRUE);
+ break;
+
+ /* Not used in the driver yet */
+ case 2:
+ UNIMPLEMENTED;
+ while (TRUE);
+ break;
+
+ /* A drain request */
+ case 3:
+ /* Shouldn't be a base resource, this is a drain */
+ ASSERT(BaseResource == NULL);
+ DrainPartial = Partial->u.DevicePrivate.Data[1];
+ ASSERT(DrainPartial == TRUE);
+ break;
+ }
+ break;
+ }
+
+ /* Move to the next descriptor */
+ Partial = PciNextPartialDescriptor(Partial);
+ }
+
+ /* We should be starting a new list now */
+ ASSERT(BaseResource == NULL);
+ FullList = (PVOID)Partial;
+ }
+
+ /* Check the current assigned PCI resources */
+ PciResources = PdoExtension->Resources;
+ if (!PciResources) return FALSE;
+
+ //if... // MISSING CODE
+ UNIMPLEMENTED;
+ DPRINT1("Missing sanity checking code!\n");
+
+ /* Loop all the PCI function resources */
+ for (i = 0; i < 7; i++)
+ {
+ /* Get the current function resource descriptor, and the new one */
+ CurrentDescriptor = &PciResources->Current[i];
+ Partial = &ResourceArray[i];
+
+ /* Previous is current during the first loop iteration */
+ PreviousDescriptor = &PciResources->Current[(i == 0) ? (0) : (i - 1)];
+
+ /* Check if this new descriptor is different than the old one */
+ if (((Partial->Type != CurrentDescriptor->Type) ||
+ (Partial->Type != CmResourceTypeNull)) &&
+ ((Partial->u.Generic.Start.QuadPart !=
+ CurrentDescriptor->u.Generic.Start.QuadPart) ||
+ (Partial->u.Generic.Length != CurrentDescriptor->u.Generic.Length)))
+ {
+ /* Record a change */
+ RangeChange = TRUE;
+
+ /* Was there a range before? */
+ if (CurrentDescriptor->Type != CmResourceTypeNull)
+ {
+ /* Print it */
+ DbgPrint(" Old range-\n");
+ PciDebugPrintPartialResource(CurrentDescriptor);
+ }
+ else
+ {
+ /* There was no range */
+ DbgPrint(" Previously unset range\n");
+ }
+
+ /* Print new one */
+ DbgPrint(" changed to\n");
+ PciDebugPrintPartialResource(Partial);
+
+ /* Update to new range */
+ CurrentDescriptor->Type = Partial->Type;
+ PreviousDescriptor->u.Generic.Start = Partial->u.Generic.Start;
+ PreviousDescriptor->u.Generic.Length = Partial->u.Generic.Length;
+ CurrentDescriptor = PreviousDescriptor;
+ }
+ }
+
+ /* Either the hardware was updated, or a resource range changed */
+ return ((RangeChange) || (PdoExtension->UpdateHardware));
+}
+
+VOID
+NTAPI
+PcipUpdateHardware(IN PVOID Context,
+ IN PVOID Context2)
+{
+ PPCI_PDO_EXTENSION PdoExtension = Context;
+ PPCI_COMMON_HEADER PciData = Context2;
+
+ /* Check if we're allowed to disable decodes */
+ PciData->Command = PdoExtension->CommandEnables;
+ if (!(PdoExtension->HackFlags & PCI_HACK_PRESERVE_COMMAND))
+ {
+ /* Disable all decodes */
+ PciData->Command &= ~(PCI_ENABLE_IO_SPACE |
+ PCI_ENABLE_MEMORY_SPACE |
+ PCI_ENABLE_BUS_MASTER |
+ PCI_ENABLE_WRITE_AND_INVALIDATE);
+ }
+
+ /* Update the device configuration */
+ PciData->Status = 0;
+ PciWriteDeviceConfig(PdoExtension, PciData, 0, PCI_COMMON_HDR_LENGTH);
+
+ /* Turn decodes back on */
+ PciDecodeEnable(PdoExtension, TRUE, &PdoExtension->CommandEnables);
+}
+
+VOID
+NTAPI
+PciUpdateHardware(IN PPCI_PDO_EXTENSION PdoExtension,
+ IN PPCI_COMMON_HEADER PciData)
+{
+ PCI_IPI_CONTEXT Context;
+
+ /* Check for critical devices and PCI Debugging devices */
+ if ((PdoExtension->HackFlags & PCI_HACK_CRITICAL_DEVICE) ||
+ (PdoExtension->OnDebugPath))
+ {
+ /* Build the context and send an IPI */
+ Context.RunCount = 1;
+ Context.Barrier = 1;
+ Context.Context = PciData;
+ Context.Function = PcipUpdateHardware;
+ Context.DeviceExtension = PdoExtension;
+ KeIpiGenericCall(PciExecuteCriticalSystemRoutine, (ULONG_PTR)&Context);
+ }
+ else
+ {
+ /* Just to the update inline */
+ PcipUpdateHardware(PdoExtension, PciData);
+ }
+}
+
PIO_RESOURCE_REQUIREMENTS_LIST
NTAPI
PciAllocateIoRequirementsList(IN ULONG Count,
* Controller to Native Mode" in the Storage section of the
* Windows Driver Kit for more details.
*/
- PdoExtension->SwitchedIDEToNativeMode =
- PciConfigureIdeController(PdoExtension, PciData, 1);
+ PdoExtension->IDEInNativeMode =
+ PciConfigureIdeController(PdoExtension, PciData, TRUE);
}
/* Is native mode enabled after all? */
VOID
NTAPI
PciWriteLimitsAndRestoreCurrent(IN PVOID Reserved,
- IN PPCI_CONFIGURATOR_CONTEXT Context)
+ IN PVOID Context2)
{
+ PPCI_CONFIGURATOR_CONTEXT Context = Context2;
PPCI_COMMON_HEADER PciData, Current;
PPCI_PDO_EXTENSION PdoExtension;
/* For these devices, an IPI must be sent to force high-IRQL discovery */
IpiContext.Barrier = 1;
IpiContext.RunCount = 1;
- IpiContext.PdoExtension = PdoExtension;
+ IpiContext.DeviceExtension = PdoExtension;
IpiContext.Function = PciWriteLimitsAndRestoreCurrent;
IpiContext.Context = Context;
KeIpiGenericCall(PciExecuteCriticalSystemRoutine, (ULONG_PTR)&IpiContext);
return STATUS_SUCCESS;
}
+NTSTATUS
+NTAPI
+PciSetResources(IN PPCI_PDO_EXTENSION PdoExtension,
+ IN BOOLEAN DoReset,
+ IN BOOLEAN SomethingSomethingDarkSide)
+{
+ PPCI_FDO_EXTENSION FdoExtension;
+ UCHAR NewCacheLineSize, NewLatencyTimer;
+ PCI_COMMON_HEADER PciData;
+ BOOLEAN Native;
+ PPCI_CONFIGURATOR Configurator;
+
+ /* Get the FDO and read the configuration data */
+ FdoExtension = PdoExtension->ParentFdoExtension;
+ PciReadDeviceConfig(PdoExtension, &PciData, 0, PCI_COMMON_HDR_LENGTH);
+
+ /* Make sure this is still the same device */
+ if (!PcipIsSameDevice(PdoExtension, &PciData))
+ {
+ /* Fail */
+ ASSERTMSG(FALSE, "PCI Set resources - not same device");
+ return STATUS_DEVICE_DOES_NOT_EXIST;
+ }
+
+ /* Nothing to set for a host bridge */
+ if ((PdoExtension->BaseClass == PCI_CLASS_BRIDGE_DEV) &&
+ (PdoExtension->SubClass == PCI_SUBCLASS_BR_HOST))
+ {
+ /* Fake success */
+ return STATUS_SUCCESS;
+ }
+
+ /* Check if an IDE controller is being reset */
+ if ((DoReset) &&
+ (PdoExtension->BaseClass == PCI_CLASS_MASS_STORAGE_CTLR) &&
+ (PdoExtension->SubClass == PCI_SUBCLASS_MSC_IDE_CTLR))
+ {
+ /* Turn off native mode */
+ Native = PciConfigureIdeController(PdoExtension, &PciData, FALSE);
+ ASSERT(Native == PdoExtension->IDEInNativeMode);
+ }
+
+ /* Check for update of a hotplug device, or first configuration of one */
+ if ((PdoExtension->NeedsHotPlugConfiguration) &&
+ (FdoExtension->HotPlugParameters.Acquired))
+ {
+ /* Don't have hotplug devices to test with yet, QEMU 0.14 should */
+ UNIMPLEMENTED;
+ while (TRUE);
+ }
+
+ /* Locate the correct resource configurator for this type of device */
+ Configurator = &PciConfigurators[PdoExtension->HeaderType];
+
+ /* Apply the settings change */
+ Configurator->ChangeResourceSettings(PdoExtension, &PciData);
+
+ /* Assume no update needed */
+ PdoExtension->UpdateHardware = FALSE;
+
+ /* Check if a reset is needed */
+ if (DoReset)
+ {
+ /* Reset resources */
+ Configurator->ResetDevice(PdoExtension, &PciData);
+ PciData.u.type0.InterruptLine = PdoExtension->RawInterruptLine;
+ }
+
+ /* Check if the latency timer changed */
+ NewLatencyTimer = PdoExtension->SavedLatencyTimer;
+ if (PciData.LatencyTimer != NewLatencyTimer)
+ {
+ /* Debug notification */
+ DPRINT1("PCI (pdox %08x) changing latency from %02x to %02x.\n",
+ PdoExtension,
+ PciData.LatencyTimer,
+ NewLatencyTimer);
+ }
+
+ /* Check if the cache line changed */
+ NewCacheLineSize = PdoExtension->SavedCacheLineSize;
+ if (PciData.CacheLineSize != NewCacheLineSize)
+ {
+ /* Debug notification */
+ DPRINT1("PCI (pdox %08x) changing cache line size from %02x to %02x.\n",
+ PdoExtension,
+ PciData.CacheLineSize,
+ NewCacheLineSize);
+ }
+
+ /* Inherit data from PDO extension */
+ PciData.LatencyTimer = PdoExtension->SavedLatencyTimer;
+ PciData.CacheLineSize = PdoExtension->SavedCacheLineSize;
+ PciData.u.type0.InterruptLine = PdoExtension->RawInterruptLine;
+
+ /* Apply any resource hacks required */
+ PciApplyHacks(FdoExtension,
+ &PciData,
+ PdoExtension->Slot,
+ PCI_HACK_FIXUP_BEFORE_UPDATE,
+ PdoExtension);
+
+ /* Check if I/O space was disabled by administrator or driver */
+ if (PdoExtension->IoSpaceNotRequired)
+ {
+ /* Don't turn on the decode */
+ PdoExtension->CommandEnables &= ~PCI_ENABLE_IO_SPACE;
+ }
+
+ /* Update the device with the new settings */
+ PciUpdateHardware(PdoExtension, &PciData);
+
+ /* Update complete */
+ PdoExtension->RawInterruptLine = PciData.u.type0.InterruptLine;
+ PdoExtension->NeedsHotPlugConfiguration = FALSE;
+ return STATUS_SUCCESS;
+}
+
/* EOF */
BOOLEAN MovedDevice;
BOOLEAN DisablePowerDown;
BOOLEAN NeedsHotPlugConfiguration;
- BOOLEAN SwitchedIDEToNativeMode;
+ BOOLEAN IDEInNativeMode;
BOOLEAN BIOSAllowsIDESwitchToNativeMode;
BOOLEAN IoSpaceUnderNativeIdeControl;
BOOLEAN OnDebugPath;
+ BOOLEAN IoSpaceNotRequired;
PCI_POWER_STATE PowerState;
PCI_HEADER_TYPE_DEPENDENT Dependent;
ULONGLONG HackFlags;
);
typedef VOID (NTAPI *PCI_CONFIGURATOR_CHANGE_RESOURCE_SETTINGS)(
- IN struct _PCI_CONFIGURATOR_CONTEXT* Context
+ IN PPCI_PDO_EXTENSION PdoExtension,
+ IN PPCI_COMMON_HEADER PciData
);
typedef VOID (NTAPI *PCI_CONFIGURATOR_GET_ADDITIONAL_RESOURCE_DESCRIPTORS)(
);
typedef VOID (NTAPI *PCI_CONFIGURATOR_RESET_DEVICE)(
- IN struct _PCI_CONFIGURATOR_CONTEXT* Context
+ IN PPCI_PDO_EXTENSION PdoExtension,
+ IN PPCI_COMMON_HEADER PciData
);
//
//
typedef VOID (NTAPI *PCI_IPI_FUNCTION)(
IN PVOID Reserved,
- IN PPCI_CONFIGURATOR_CONTEXT Context
+ IN PVOID Context
);
//
{
LONG RunCount;
ULONG Barrier;
- PPCI_PDO_EXTENSION PdoExtension;
+ PVOID DeviceExtension;
PCI_IPI_FUNCTION Function;
PVOID Context;
} PCI_IPI_CONTEXT, *PPCI_IPI_CONTEXT;
IN OUT PDEVICE_CAPABILITIES DeviceCapability
);
+PCM_PARTIAL_RESOURCE_DESCRIPTOR
+NTAPI
+PciNextPartialDescriptor(
+ PCM_PARTIAL_RESOURCE_DESCRIPTOR CmDescriptor
+);
+
//
// Configuration Routines
//
IN PIO_RESOURCE_REQUIREMENTS_LIST Requirements
);
+VOID
+NTAPI
+PciDebugPrintCmResList(
+ IN PCM_RESOURCE_LIST ResourceList
+);
+
+VOID
+NTAPI
+PciDebugPrintPartialResource(
+ IN PCM_PARTIAL_RESOURCE_DESCRIPTOR PartialResource
+);
+
//
// Interface Support
//
IN OUT PIO_RESOURCE_REQUIREMENTS_LIST *RequirementsList
);
+BOOLEAN
+NTAPI
+PciComputeNewCurrentSettings(
+ IN PPCI_PDO_EXTENSION PdoExtension,
+ IN PCM_RESOURCE_LIST ResourceList
+);
+
+NTSTATUS
+NTAPI
+PciSetResources(
+ IN PPCI_PDO_EXTENSION PdoExtension,
+ IN BOOLEAN DoReset,
+ IN BOOLEAN SomethingSomethingDarkSide
+);
+
//
// Identification Functions
//
VOID
NTAPI
Cardbus_ResetDevice(
- IN PPCI_CONFIGURATOR_CONTEXT Context
+ IN PPCI_PDO_EXTENSION PdoExtension,
+ IN PPCI_COMMON_HEADER PciData
);
VOID
NTAPI
Cardbus_ChangeResourceSettings(
- IN PPCI_CONFIGURATOR_CONTEXT Context
+ IN PPCI_PDO_EXTENSION PdoExtension,
+ IN PPCI_COMMON_HEADER PciData
);
//
VOID
NTAPI
Device_ResetDevice(
- IN PPCI_CONFIGURATOR_CONTEXT Context
+ IN PPCI_PDO_EXTENSION PdoExtension,
+ IN PPCI_COMMON_HEADER PciData
);
VOID
NTAPI
Device_ChangeResourceSettings(
- IN PPCI_CONFIGURATOR_CONTEXT Context
+ IN PPCI_PDO_EXTENSION PdoExtension,
+ IN PPCI_COMMON_HEADER PciData
);
//
VOID
NTAPI
PPBridge_ResetDevice(
- IN PPCI_CONFIGURATOR_CONTEXT Context
+ IN PPCI_PDO_EXTENSION PdoExtension,
+ IN PPCI_COMMON_HEADER PciData
);
VOID
NTAPI
PPBridge_ChangeResourceSettings(
- IN PPCI_CONFIGURATOR_CONTEXT Context
+ IN PPCI_PDO_EXTENSION PdoExtension,
+ IN PPCI_COMMON_HEADER PciData
);
//
IN PIO_STACK_LOCATION IoStackLocation,
IN PPCI_PDO_EXTENSION DeviceExtension)
{
- UNIMPLEMENTED;
- while (TRUE);
- return STATUS_NOT_SUPPORTED;
+ NTSTATUS Status;
+ BOOLEAN Changed, DoReset;
+ POWER_STATE PowerState;
+ PAGED_CODE();
+
+ DoReset = FALSE;
+
+ /* Begin entering the start phase */
+ Status = PciBeginStateTransition((PVOID)DeviceExtension, PciStarted);
+ if (!NT_SUCCESS(Status)) return Status;
+
+ /* Check if this is a VGA device */
+ if (((DeviceExtension->BaseClass == PCI_CLASS_PRE_20) &&
+ (DeviceExtension->SubClass == PCI_SUBCLASS_PRE_20_VGA)) ||
+ ((DeviceExtension->BaseClass == PCI_CLASS_DISPLAY_CTLR) &&
+ (DeviceExtension->SubClass -= PCI_SUBCLASS_VID_VGA_CTLR)))
+ {
+ /* Always force it on */
+ DeviceExtension->CommandEnables |= (PCI_ENABLE_IO_SPACE |
+ PCI_ENABLE_MEMORY_SPACE);
+ }
+
+ /* Check if native IDE is enabled and it owns the I/O ports */
+ if (DeviceExtension->IoSpaceUnderNativeIdeControl)
+ {
+ /* Then don't allow I/O access */
+ DeviceExtension->CommandEnables &= ~PCI_ENABLE_IO_SPACE;
+ }
+
+ /* Always enable bus mastering */
+ DeviceExtension->CommandEnables |= PCI_ENABLE_BUS_MASTER;
+
+ /* Check if the OS assigned resources differ from the PCI configuration */
+ Changed = PciComputeNewCurrentSettings(DeviceExtension,
+ IoStackLocation->Parameters.
+ StartDevice.AllocatedResources);
+ if (Changed)
+ {
+ /* Remember this for later */
+ DeviceExtension->MovedDevice = TRUE;
+ }
+ else
+ {
+ /* All good */
+ DPRINT1("PCI - START not changing resource settings.\n");
+ }
+
+ /* Check if the device was sleeping */
+ if (DeviceExtension->PowerState.CurrentDeviceState != PowerDeviceD0)
+ {
+ /* Power it up */
+ Status = PciSetPowerManagedDevicePowerState(DeviceExtension,
+ PowerDeviceD0,
+ FALSE);
+ if (!NT_SUCCESS(Status))
+ {
+ /* Powerup fail, fail the request */
+ PciCancelStateTransition((PVOID)DeviceExtension, PciStarted);
+ return STATUS_DEVICE_POWER_FAILURE;
+ }
+
+ /* Tell the power manager that the device is powered up */
+ PowerState.DeviceState = PowerDeviceD0;
+ PoSetPowerState(DeviceExtension->PhysicalDeviceObject,
+ DevicePowerState,
+ PowerState);
+
+ /* Update internal state */
+ DeviceExtension->PowerState.CurrentDeviceState = PowerDeviceD0;
+
+ /* This device's resources and decodes will need to be reset */
+ DoReset = TRUE;
+ }
+
+ /* Update resource information now that the device is powered up and active */
+ Status = PciSetResources(DeviceExtension, DoReset, TRUE);
+ if (!NT_SUCCESS(Status))
+ {
+ /* That failed, so cancel the transition */
+ PciCancelStateTransition((PVOID)DeviceExtension, PciStarted);
+ }
+ else
+ {
+ /* Fully commit, as the device is now started up and ready to go */
+ PciCommitStateTransition((PVOID)DeviceExtension, PciStarted);
+ }
+
+ /* Return the result of the start request */
+ return Status;
}
NTSTATUS
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