diff options
Diffstat (limited to 'EdkCompatibilityPkg/Compatiblity/PciCfg2ToPciCfgThunk/PciCfg2ToPciCfgThunk.c')
| -rw-r--r-- | EdkCompatibilityPkg/Compatiblity/PciCfg2ToPciCfgThunk/PciCfg2ToPciCfgThunk.c | 219 |
1 files changed, 219 insertions, 0 deletions
diff --git a/EdkCompatibilityPkg/Compatiblity/PciCfg2ToPciCfgThunk/PciCfg2ToPciCfgThunk.c b/EdkCompatibilityPkg/Compatiblity/PciCfg2ToPciCfgThunk/PciCfg2ToPciCfgThunk.c new file mode 100644 index 0000000..9cdf65a --- /dev/null +++ b/EdkCompatibilityPkg/Compatiblity/PciCfg2ToPciCfgThunk/PciCfg2ToPciCfgThunk.c @@ -0,0 +1,219 @@ +/*++
+
+Copyright (c) 2006 - 2008 Intel Corporation. <BR>
+All rights reserved. This program and the accompanying materials
+are licensed and made available under the terms and conditions of the BSD License
+which accompanies this distribution. The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+Module Name:
+
+ Variable.c
+
+Abstract:
+
+ PEIM to provide the Variable functionality
+
+--*/
+
+#include <PiPei.h>
+#include <Ppi/PciCfg.h>
+#include <Ppi/PciCfg2.h>
+#include <Ppi/EcpPciCfg.h>
+#include <Library/DebugLib.h>
+
+//
+// Function Prototypes - Callbacks
+//
+EFI_STATUS
+EFIAPI
+EcpPciCfgPpiNotifyCallback (
+ IN EFI_PEI_SERVICES **PeiServices,
+ IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,
+ IN VOID *Ppi
+ );
+
+//
+// Function Prototypes
+//
+EFI_STATUS
+EFIAPI
+PciCfg2Read (
+ IN CONST EFI_PEI_SERVICES **PeiServices,
+ IN CONST EFI_PEI_PCI_CFG2_PPI *This,
+ IN EFI_PEI_PCI_CFG_PPI_WIDTH Width,
+ IN UINT64 Address,
+ IN OUT VOID *Buffer
+ );
+
+EFI_STATUS
+EFIAPI
+PciCfg2Write (
+ IN CONST EFI_PEI_SERVICES **PeiServices,
+ IN CONST EFI_PEI_PCI_CFG2_PPI *This,
+ IN EFI_PEI_PCI_CFG_PPI_WIDTH Width,
+ IN UINT64 Address,
+ IN OUT VOID *Buffer
+ );
+
+EFI_STATUS
+EFIAPI
+PciCfg2Modify (
+ IN CONST EFI_PEI_SERVICES **PeiServices,
+ IN CONST EFI_PEI_PCI_CFG2_PPI *This,
+ IN EFI_PEI_PCI_CFG_PPI_WIDTH Width,
+ IN UINT64 Address,
+ IN CONST VOID *SetBits,
+ IN CONST VOID *ClearBits
+ );
+
+//
+// Module globals
+//
+EFI_PEI_NOTIFY_DESCRIPTOR mNotifyOnEcpPciCfgList = {
+ (EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
+ &gEcpPeiPciCfgPpiGuid,
+ EcpPciCfgPpiNotifyCallback
+};
+
+EFI_PEI_PCI_CFG2_PPI mPciCfg2Ppi = {
+ PciCfg2Read,
+ PciCfg2Write,
+ PciCfg2Modify,
+ 0
+};
+
+EFI_PEI_PPI_DESCRIPTOR mPpiListPciCfg2 = {
+ (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
+ &gEfiPciCfg2PpiGuid,
+ &mPciCfg2Ppi
+};
+
+
+EFI_STATUS
+EFIAPI
+PeimInitializePciCfg2 (
+ IN EFI_FFS_FILE_HEADER *FfsHeader,
+ IN CONST EFI_PEI_SERVICES **PeiServices
+ )
+/*++
+
+Routine Description:
+
+ Provide the functionality of the variable services.
+
+Arguments:
+
+ FfsHeadher - The FFS file header
+ PeiServices - General purpose services available to every PEIM.
+
+Returns:
+
+ Status - EFI_SUCCESS if the interface could be successfully
+ installed
+
+--*/
+{
+ EFI_STATUS Status;
+
+ //
+ // Register a notification for ECP PCI CFG PPI
+ //
+ Status = (*PeiServices)->NotifyPpi (PeiServices, &mNotifyOnEcpPciCfgList);
+ ASSERT_EFI_ERROR (Status);
+ return Status;
+}
+
+EFI_STATUS
+EFIAPI
+EcpPciCfgPpiNotifyCallback (
+ IN EFI_PEI_SERVICES **PeiServices,
+ IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,
+ IN VOID *Ppi
+ )
+{
+ //
+ // When ECP PCI CFG PPI is installed, publish the PCI CFG2 PPI in the
+ // PEI Services Table and the PPI database
+ //
+ (*PeiServices)->PciCfg = &mPciCfg2Ppi;
+ return (*PeiServices)->InstallPpi ((CONST EFI_PEI_SERVICES **)PeiServices, &mPpiListPciCfg2);
+}
+
+EFI_STATUS
+EFIAPI
+PciCfg2Read (
+ IN CONST EFI_PEI_SERVICES **PeiServices,
+ IN CONST EFI_PEI_PCI_CFG2_PPI *This,
+ IN EFI_PEI_PCI_CFG_PPI_WIDTH Width,
+ IN UINT64 Address,
+ IN OUT VOID *Buffer
+ )
+{
+ EFI_STATUS Status;
+ EFI_PEI_PCI_CFG_PPI *PciCfg;
+
+ Status = (*PeiServices)->LocatePpi (
+ PeiServices,
+ &gEcpPeiPciCfgPpiGuid,
+ 0,
+ NULL,
+ (VOID **)&PciCfg
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ return PciCfg->Read ((EFI_PEI_SERVICES **)PeiServices, PciCfg, Width, Address, Buffer);
+}
+
+EFI_STATUS
+EFIAPI
+PciCfg2Write (
+ IN CONST EFI_PEI_SERVICES **PeiServices,
+ IN CONST EFI_PEI_PCI_CFG2_PPI *This,
+ IN EFI_PEI_PCI_CFG_PPI_WIDTH Width,
+ IN UINT64 Address,
+ IN OUT VOID *Buffer
+ )
+{
+ EFI_STATUS Status;
+ EFI_PEI_PCI_CFG_PPI *PciCfg;
+
+ Status = (*PeiServices)->LocatePpi (
+ PeiServices,
+ &gEcpPeiPciCfgPpiGuid,
+ 0,
+ NULL,
+ (VOID **)&PciCfg
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ return PciCfg->Write ((EFI_PEI_SERVICES **)PeiServices, PciCfg, Width, Address, Buffer);
+}
+
+EFI_STATUS
+EFIAPI
+PciCfg2Modify (
+ IN CONST EFI_PEI_SERVICES **PeiServices,
+ IN CONST EFI_PEI_PCI_CFG2_PPI *This,
+ IN EFI_PEI_PCI_CFG_PPI_WIDTH Width,
+ IN UINT64 Address,
+ IN CONST VOID *SetBits,
+ IN CONST VOID *ClearBits
+ )
+{
+ EFI_STATUS Status;
+ EFI_PEI_PCI_CFG_PPI *PciCfg;
+
+ Status = (*PeiServices)->LocatePpi (
+ PeiServices,
+ &gEcpPeiPciCfgPpiGuid,
+ 0,
+ NULL,
+ (VOID **)&PciCfg
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ return PciCfg->Modify ((EFI_PEI_SERVICES **)PeiServices, PciCfg, Width, Address, *(UINTN *)SetBits, *(UINTN *)ClearBits);
+}
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