diff options
| author | klu2 <klu2@6f19259b-4bc3-4df7-8a09-765794883524> | 2010-01-04 04:36:37 +0000 |
|---|---|---|
| committer | klu2 <klu2@6f19259b-4bc3-4df7-8a09-765794883524> | 2010-01-04 04:36:37 +0000 |
| commit | 8d415937c88a66b710e2a0cea7913a332d92cbe7 (patch) | |
| tree | c48e5a74a0089a533de670cd1f0660954809c08a /MdeModulePkg/Core/Pei/PciCfg2 | |
| parent | e2ea082665e3762270647363f7b283f02972d572 (diff) | |
| download | edk2-platforms-8d415937c88a66b710e2a0cea7913a332d92cbe7.tar.xz | |
Add default implementation of EFI_CPU_IO_PPI and EFI_PCI_CFG2_PPI for EFI_SERVICES_TABLE.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9662 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdeModulePkg/Core/Pei/PciCfg2')
| -rw-r--r-- | MdeModulePkg/Core/Pei/PciCfg2/PciCfg2.c | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/MdeModulePkg/Core/Pei/PciCfg2/PciCfg2.c b/MdeModulePkg/Core/Pei/PciCfg2/PciCfg2.c new file mode 100644 index 0000000000..419f96e4c9 --- /dev/null +++ b/MdeModulePkg/Core/Pei/PciCfg2/PciCfg2.c @@ -0,0 +1,128 @@ +/** @file
+ The default version of EFI_PEI_PCI_CFG2_PPI support published by PeiServices in
+ PeiCore initialization phase.
+
+ EFI_PEI_PCI_CFG2_PPI is installed by the PEIM which supports a PCI root bridge.
+ When PeiCore is started, the default version of EFI_PEI_PCI_CFG2_PPI will be assigned
+ to PeiServices table.
+
+Copyright (c) 2009, Intel Corporation
+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.
+
+**/
+
+#include "PeiMain.h"
+
+///
+/// This default instance of EFI_PEI_PCI_CFG2_PPI install assigned to EFI_PEI_SERVICE.PciCfg
+/// when PeiCore's initialization.
+///
+EFI_PEI_PCI_CFG2_PPI gPeiDefaultPciCfg2Ppi = {
+ PeiDefaultPciCfg2Read,
+ PeiDefaultPciCfg2Write,
+ PeiDefaultPciCfg2Modify
+};
+
+/**
+ Reads from a given location in the PCI configuration space.
+
+ If the EFI_PEI_PCI_CFG2_PPI is not installed by platform/chipset PEIM, then
+ return EFI_NOT_YET_AVAILABLE.
+
+ @param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
+ @param This Pointer to local data for the interface.
+ @param Width The width of the access. Enumerated in bytes.
+ See EFI_PEI_PCI_CFG_PPI_WIDTH above.
+ @param Address The physical address of the access. The format of
+ the address is described by EFI_PEI_PCI_CFG_PPI_PCI_ADDRESS.
+ @param Buffer A pointer to the buffer of data.
+
+ @retval EFI_SUCCESS The function completed successfully.
+ @retval EFI_INVALID_PARAMETER The invalid access width.
+ @retval EFI_NOT_YET_AVAILABLE If the EFI_PEI_PCI_CFG2_PPI is not installed by platform/chipset PEIM.
+
+**/
+EFI_STATUS
+EFIAPI
+PeiDefaultPciCfg2Read (
+ 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
+ )
+{
+ return EFI_NOT_AVAILABLE_YET;
+}
+
+/**
+ Write to a given location in the PCI configuration space.
+
+ If the EFI_PEI_PCI_CFG2_PPI is not installed by platform/chipset PEIM, then
+ return EFI_NOT_YET_AVAILABLE.
+
+ @param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
+ @param This Pointer to local data for the interface.
+ @param Width The width of the access. Enumerated in bytes.
+ See EFI_PEI_PCI_CFG_PPI_WIDTH above.
+ @param Address The physical address of the access. The format of
+ the address is described by EFI_PEI_PCI_CFG_PPI_PCI_ADDRESS.
+ @param Buffer A pointer to the buffer of data.
+
+ @retval EFI_SUCCESS The function completed successfully.
+ @retval EFI_INVALID_PARAMETER The invalid access width.
+ @retval EFI_NOT_YET_AVAILABLE If the EFI_PEI_PCI_CFG2_PPI is not installed by platform/chipset PEIM.
+**/
+EFI_STATUS
+EFIAPI
+PeiDefaultPciCfg2Write (
+ 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
+ )
+{
+ return EFI_NOT_AVAILABLE_YET;
+}
+
+/**
+ This function performs a read-modify-write operation on the contents from a given
+ location in the PCI configuration space.
+ If the EFI_PEI_PCI_CFG2_PPI is not installed by platform/chipset PEIM, then
+ return EFI_NOT_YET_AVAILABLE.
+
+ @param PeiServices An indirect pointer to the PEI Services Table
+ published by the PEI Foundation.
+ @param This Pointer to local data for the interface.
+ @param Width The width of the access. Enumerated in bytes. Type
+ EFI_PEI_PCI_CFG_PPI_WIDTH is defined in Read().
+ @param Address The physical address of the access.
+ @param SetBits Points to value to bitwise-OR with the read configuration value.
+ The size of the value is determined by Width.
+ @param ClearBits Points to the value to negate and bitwise-AND with the read configuration value.
+ The size of the value is determined by Width.
+
+ @retval EFI_SUCCESS The function completed successfully.
+ @retval EFI_INVALID_PARAMETER The invalid access width.
+ @retval EFI_NOT_YET_AVAILABLE If the EFI_PEI_PCI_CFG2_PPI is not installed by platform/chipset PEIM.
+**/
+EFI_STATUS
+EFIAPI
+PeiDefaultPciCfg2Modify (
+ 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 VOID *SetBits,
+ IN VOID *ClearBits
+ )
+{
+ return EFI_NOT_AVAILABLE_YET;
+}
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