diff options
| author | vanjeff <vanjeff@6f19259b-4bc3-4df7-8a09-765794883524> | 2007-04-12 09:07:01 +0000 |
|---|---|---|
| committer | vanjeff <vanjeff@6f19259b-4bc3-4df7-8a09-765794883524> | 2007-04-12 09:07:01 +0000 |
| commit | 98419ef4b972aade5ff5201ff6dd99561872e52c (patch) | |
| tree | 10d09fb865831fc0f3b9d6402744af13c7fd6786 /EdkModulePkg/Library/EdkPciIncompatibleDeviceSupportLib/EdkPciIncompatibleDeviceSupportLib.c | |
| parent | 0eaa1933bc16010889cb39a8b91cbd0a48d985b2 (diff) | |
| download | edk2-platforms-98419ef4b972aade5ff5201ff6dd99561872e52c.tar.xz | |
1. Added EdkPciIncompatibleDeviceSupportLib in EdkModulePkg, this library is used for PciBus driver and includes 3 Incompatible device lists.
2. Used EdkPciIncompatibleDeviceSupportLib in PciBus driver.
3. Redirect all Pci Configuration access to new APIs added in PciLib.c for PciBus driver.
4. Added one PCD PcdIncompatibleDeviceSupportMask in EdkModulePkg.spd to provide mask of PCI devices incompatibility check.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2562 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'EdkModulePkg/Library/EdkPciIncompatibleDeviceSupportLib/EdkPciIncompatibleDeviceSupportLib.c')
| -rw-r--r-- | EdkModulePkg/Library/EdkPciIncompatibleDeviceSupportLib/EdkPciIncompatibleDeviceSupportLib.c | 388 |
1 files changed, 388 insertions, 0 deletions
diff --git a/EdkModulePkg/Library/EdkPciIncompatibleDeviceSupportLib/EdkPciIncompatibleDeviceSupportLib.c b/EdkModulePkg/Library/EdkPciIncompatibleDeviceSupportLib/EdkPciIncompatibleDeviceSupportLib.c new file mode 100644 index 0000000000..f6638c1607 --- /dev/null +++ b/EdkModulePkg/Library/EdkPciIncompatibleDeviceSupportLib/EdkPciIncompatibleDeviceSupportLib.c @@ -0,0 +1,388 @@ +/** @file
+ The implementation of PCI incompatible device support libary.
+
+Copyright (c) 2007 Intel Corporation. All rights reserved. <BR>
+This software and associated documentation (if any) is furnished
+under a license and may only be used or copied in accordance
+with the terms of the license. Except as permitted by such
+license, no part of this software or documentation may be
+reproduced, stored in a retrieval system, or transmitted in any
+form or by any means without the express written consent of
+Intel Corporation.
+
+**/
+
+#include "IncompatiblePciDeviceList.h"
+
+/**
+ Check whether two PCI devices matched
+
+ @param PciDeviceInfo A pointer to EFI_PCI_DEVICE_INFO.
+ @param Header A pointer to EFI_PCI_DEVICE_INFO.
+
+ @retval returns EFI_SUCCESS if two PCI device matched.
+**/
+STATIC
+EFI_STATUS
+DeviceCheck (
+ IN EFI_PCI_DEVICE_INFO *PciDeviceInfo,
+ IN EFI_PCI_DEVICE_INFO *Header
+ )
+{
+ //
+ // See if the Header matches the parameters passed in
+ //
+ if (Header->VendorID != DEVICE_ID_NOCARE) {
+ if (PciDeviceInfo->VendorID != Header->VendorID) {
+ return EFI_UNSUPPORTED;
+ }
+ }
+
+ if (Header->DeviceID != DEVICE_ID_NOCARE) {
+ if (PciDeviceInfo->DeviceID != Header->DeviceID) {
+ return EFI_UNSUPPORTED;
+ }
+ }
+
+ if (Header->RevisionID != DEVICE_ID_NOCARE) {
+ if (PciDeviceInfo->RevisionID != Header->RevisionID) {
+ return EFI_UNSUPPORTED;
+ }
+ }
+
+ if (Header->SubsystemVendorID != DEVICE_ID_NOCARE) {
+ if (PciDeviceInfo->SubsystemVendorID != Header->SubsystemVendorID) {
+ return EFI_UNSUPPORTED;
+ }
+ }
+
+ if (Header->SubsystemID != DEVICE_ID_NOCARE) {
+ if (PciDeviceInfo->SubsystemID != Header->SubsystemID) {
+ return EFI_UNSUPPORTED;
+ }
+ }
+
+ return EFI_SUCCESS;
+}
+
+
+/**
+ Check the incompatible device list for ACPI resource update and return
+ the configuration
+
+ This function searches the incompatible device list according to request
+ information. If the PCI device belongs to the devices list, corresponding
+ configuration informtion will be returned, in the meantime return EFI_SUCCESS.
+
+ @param PciDeviceInfo A pointer to PCI device information.
+ @param Configuration Returned information.
+
+ @retval returns EFI_SUCCESS if check incompatible device ok.
+ Otherwise return EFI_UNSUPPORTED.
+**/
+RETURN_STATUS
+EFIAPI
+PciResourceUpdateCheck (
+ IN EFI_PCI_DEVICE_INFO *PciDeviceInfo,
+ OUT VOID *Configuration
+ )
+{
+ UINT64 Tag;
+ UINT64 *ListPtr;
+ UINT64 *TempListPtr;
+ EFI_PCI_DEVICE_INFO *Header;
+ EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *AcpiPtr;
+ EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *OldAcpiPtr;
+ EFI_PCI_RESOUCE_DESCRIPTOR *Dsc;
+ EFI_ACPI_END_TAG_DESCRIPTOR *PtrEnd;
+ UINTN Index;
+
+ ASSERT (PciDeviceInfo != NULL);
+
+ //
+ // Initialize the return value to NULL
+ //
+ * (VOID **) Configuration = NULL;
+
+ ListPtr = IncompatiblePciDeviceListForResource;
+ while (*ListPtr != LIST_END_TAG) {
+
+ Tag = *ListPtr;
+
+ switch (Tag) {
+ case DEVICE_INF_TAG:
+ Header = (EFI_PCI_DEVICE_INFO *) (ListPtr + 1);
+ ListPtr = ListPtr + 1 + sizeof (EFI_PCI_DEVICE_INFO) / sizeof (UINT64);
+
+ if (DeviceCheck (PciDeviceInfo, Header) != EFI_SUCCESS) {
+ continue;
+ }
+
+ //
+ // Matched an item, so construct the ACPI descriptor for the resource.
+ //
+ //
+ // Count the resource items so that to allocate space
+ //
+ for (Index = 0, TempListPtr = ListPtr; *TempListPtr == DEVICE_RES_TAG; Index++) {
+ TempListPtr = TempListPtr + 1 + ((sizeof (EFI_PCI_RESOUCE_DESCRIPTOR)) / sizeof (UINT64));
+ }
+ //
+ // If there is at least one type of resource request,
+ // allocate a acpi resource node
+ //
+ if (Index == 0) {
+ return EFI_ABORTED;
+ }
+
+ AcpiPtr = AllocateZeroPool (
+ sizeof (EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR) * Index + sizeof (EFI_ACPI_END_TAG_DESCRIPTOR)
+ );
+
+ OldAcpiPtr = AcpiPtr;
+
+ //
+ // Fill the EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR structure
+ // according to the EFI_PCI_RESOUCE_DESCRIPTOR structure
+ //
+ for (; *ListPtr == DEVICE_RES_TAG;) {
+
+ Dsc = (EFI_PCI_RESOUCE_DESCRIPTOR *) (ListPtr + 1);
+
+ AcpiPtr->Desc = ACPI_ADDRESS_SPACE_DESCRIPTOR;
+ AcpiPtr->Len = sizeof (EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR);
+ AcpiPtr->ResType = (UINT8) Dsc->ResType;
+ AcpiPtr->GenFlag = (UINT8) Dsc->GenFlag;
+ AcpiPtr->SpecificFlag = (UINT8) Dsc->SpecificFlag;
+ AcpiPtr->AddrSpaceGranularity = Dsc->AddrSpaceGranularity;;
+ AcpiPtr->AddrRangeMin = Dsc->AddrRangeMin;
+ AcpiPtr->AddrRangeMax = Dsc->AddrRangeMax;
+ AcpiPtr->AddrTranslationOffset = Dsc->AddrTranslationOffset;
+ AcpiPtr->AddrLen = Dsc->AddrLen;
+
+ ListPtr = ListPtr + 1 + ((sizeof (EFI_PCI_RESOUCE_DESCRIPTOR)) / sizeof (UINT64));
+ AcpiPtr++;
+ }
+ //
+ // put the checksum
+ //
+ PtrEnd = (EFI_ACPI_END_TAG_DESCRIPTOR *) (AcpiPtr);
+ PtrEnd->Desc = ACPI_END_TAG_DESCRIPTOR;
+ PtrEnd->Checksum = 0;
+
+ *(VOID **) Configuration = OldAcpiPtr;
+
+ return EFI_SUCCESS;
+
+ case DEVICE_RES_TAG:
+ //
+ // Adjust the pointer to the next PCI resource descriptor item
+ //
+ ListPtr = ListPtr + 1 + ((sizeof (EFI_PCI_RESOUCE_DESCRIPTOR)) / sizeof (UINT64));
+ break;
+
+ default:
+ return EFI_UNSUPPORTED;
+ }
+ }
+
+ return EFI_UNSUPPORTED;
+
+}
+
+/**
+ Check the incompatible device list and return configuraton register mask values.
+
+ This function searches the incompatible device list according to request
+ information. If the PCI device belongs to the devices list, corresponding
+ configuration informtion will be returned, in the meantime return EFI_SUCCESS.
+
+ @param PciDeviceInfo A pointer to EFI_PCI_DEVICE_INFO.
+ @param AccessType Access Type, READ or WRITE.
+ @param Offset The address within the PCI configuration space.
+ @param Configuration Returned information.
+
+ @retval returns EFI_SUCCESS if check incompatible device ok.
+ Otherwise return EFI_UNSUPPORTED.
+**/
+RETURN_STATUS
+EFIAPI
+PciRegisterUpdateCheck (
+ IN EFI_PCI_DEVICE_INFO *PciDeviceInfo,
+ IN UINT64 AccessType,
+ IN UINT64 Offset,
+ OUT VOID *Configuration
+ )
+{
+ EFI_PCI_DEVICE_INFO *Header;
+ UINT64 Tag;
+ UINT64 *ListPtr;
+ EFI_PCI_REGISTER_VALUE_DATA *RegisterPtr;
+ EFI_PCI_REGISTER_VALUE_DATA *Dsc;
+
+ ASSERT (PciDeviceInfo != NULL);
+
+ ListPtr = IncompatiblePciDeviceListForRegister;
+
+ //
+ // Initialize the return value to NULL
+ //
+ * (VOID **) Configuration = NULL;
+
+ while (*ListPtr != LIST_END_TAG) {
+
+ Tag = *ListPtr;
+
+ switch (Tag) {
+ case DEVICE_INF_TAG:
+ Header = (EFI_PCI_DEVICE_INFO *) (ListPtr + 1);
+ ListPtr = ListPtr + 1 + sizeof (EFI_PCI_DEVICE_INFO) / sizeof (UINT64);
+
+ //
+ // Check whether the PCI device matches the device in the incompatible devices list?
+ // If not, ship next
+ //
+ if (DeviceCheck (PciDeviceInfo, Header) != EFI_SUCCESS) {
+ continue;
+ }
+
+ //
+ // Matched an item, check whether access matches?
+ //
+ for (; *ListPtr == DEVICE_RES_TAG;) {
+ ListPtr ++;
+ if (((EFI_PCI_REGISTER_VALUE_DESCRIPTOR *)ListPtr)->Offset == (Offset & 0xfc)) {
+ if (((EFI_PCI_REGISTER_VALUE_DESCRIPTOR *)ListPtr)->AccessType == AccessType) {
+
+ Dsc = (EFI_PCI_REGISTER_VALUE_DATA *) (ListPtr + 2);
+ RegisterPtr = AllocateZeroPool (sizeof (EFI_PCI_REGISTER_VALUE_DATA));
+
+ RegisterPtr->AndValue = Dsc->AndValue;
+ RegisterPtr->OrValue = Dsc->OrValue;
+
+ *(VOID **) Configuration = RegisterPtr;
+
+ return EFI_SUCCESS;
+ }
+ }
+ ListPtr += sizeof (EFI_PCI_REGISTER_VALUE_DESCRIPTOR) / (sizeof (UINT64));
+ }
+ return EFI_UNSUPPORTED;
+
+ case DEVICE_RES_TAG:
+ //
+ // Adjust the pointer to the next item
+ //
+ ListPtr = ListPtr + 1 + ((sizeof (EFI_PCI_REGISTER_VALUE_DESCRIPTOR)) / sizeof (UINT64));
+ break;
+
+ default:
+ return EFI_UNSUPPORTED;
+ }
+ }
+
+ return EFI_UNSUPPORTED;
+}
+
+/**
+ Check the incompatible device list for access width incompatibility and
+ return the configuration
+
+ This function searches the incompatible device list for access width
+ incompatibility according to request information. If the PCI device
+ belongs to the devices list, corresponding configuration informtion
+ will be returned, in the meantime return EFI_SUCCESS.
+
+ @param PciDeviceInfo A pointer to PCI device information.
+ @param AccessType Access type, READ or WRITE.
+ @param Offset The address within the PCI configuration space.
+ @param AccessWidth Access width needs to check incompatibility.
+ @param Configuration Returned information.
+
+ @retval returns EFI_SUCCESS if check incompatible device ok.
+ Otherwise return EFI_UNSUPPORTED.
+**/
+RETURN_STATUS
+EFIAPI
+PciRegisterAccessCheck (
+ IN EFI_PCI_DEVICE_INFO *PciDeviceInfo,
+ IN UINT64 AccessType,
+ IN UINT64 Offset,
+ IN UINT64 AccessWidth,
+ OUT VOID *Configuration
+ )
+{
+ EFI_PCI_DEVICE_INFO *Header;
+ UINT64 Tag;
+ UINT64 *ListPtr;
+ EFI_PCI_REGISTER_ACCESS_DATA *RegisterPtr;
+ EFI_PCI_REGISTER_ACCESS_DATA *Dsc;
+
+ ASSERT (PciDeviceInfo != NULL);
+
+ ListPtr = DeviceListForAccessWidth;
+
+ //
+ // Initialize the return value to NULL
+ //
+ * (VOID **) Configuration = NULL;
+
+ while (*ListPtr != LIST_END_TAG) {
+
+ Tag = *ListPtr;
+
+ switch (Tag) {
+ case DEVICE_INF_TAG:
+ Header = (EFI_PCI_DEVICE_INFO *) (ListPtr + 1);
+ ListPtr = ListPtr + 1 + sizeof (EFI_PCI_DEVICE_INFO) / sizeof (UINT64);
+
+ //
+ // Check whether the PCI device matches the device in the incompatible devices list?
+ // If not, ship next
+ //
+ if (DeviceCheck (PciDeviceInfo, Header) != EFI_SUCCESS) {
+ continue;
+ }
+
+ //
+ // Matched an item, check whether access matches?
+ //
+ for (; *ListPtr == DEVICE_RES_TAG;) {
+ ListPtr ++;
+ if (((EFI_PCI_REGISTER_ACCESS_DESCRIPTOR *) ListPtr)->AccessType == AccessType &&
+ ((EFI_PCI_REGISTER_ACCESS_DESCRIPTOR *) ListPtr)->AccessWidth == AccessWidth ) {
+
+ Dsc = (EFI_PCI_REGISTER_ACCESS_DATA *) (ListPtr + 2);
+
+ if((Dsc->StartOffset <= Offset) && (Dsc->EndOffset > Offset)) {
+
+ RegisterPtr = AllocateZeroPool (sizeof (EFI_PCI_REGISTER_ACCESS_DATA));
+
+ RegisterPtr->StartOffset = Dsc->StartOffset;
+ RegisterPtr->EndOffset = Dsc->EndOffset;
+ RegisterPtr->Width = Dsc->Width;
+
+ *(VOID **) Configuration = RegisterPtr;
+
+ return EFI_SUCCESS;
+ }
+ }
+ ListPtr += sizeof (EFI_PCI_REGISTER_ACCESS_DESCRIPTOR) / (sizeof (UINT64));
+ }
+ return EFI_UNSUPPORTED;
+
+ case DEVICE_RES_TAG:
+ //
+ // Adjust the pointer to the next item
+ //
+ ListPtr = ListPtr + 1 + ((sizeof (EFI_PCI_REGISTER_ACCESS_DESCRIPTOR)) / sizeof (UINT64));
+ break;
+
+ default:
+ return EFI_UNSUPPORTED;
+ }
+ }
+
+ return EFI_UNSUPPORTED;
+}
+
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