From: qhuang8 <qhuang8@6f19259b-4bc3-4df7-8a09-765794883524>
Date: Fri, 6 Jul 2007 02:21:15 +0000 (+0000)
Subject: Add PciCfg PPI definitions
X-Git-Tag: edk2-stable201903~22867
X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=commitdiff_plain;h=caf45c986f5f0e02c52f9e50b46c539ac41f80da;hp=a67d1f184441fd6392e1f23f25c6206d3a0e80d8;ds=sidebyside

Add PciCfg PPI definitions

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@3088 6f19259b-4bc3-4df7-8a09-765794883524
---

diff --git a/IntelFrameworkPkg/Include/Ppi/PciCfg.h b/IntelFrameworkPkg/Include/Ppi/PciCfg.h
new file mode 100644
index 0000000000..31a8b53fec
--- /dev/null
+++ b/IntelFrameworkPkg/Include/Ppi/PciCfg.h
@@ -0,0 +1,107 @@
+/** @file
+  This file declares PciCfg PPI used to access PCI configuration space in PEI
+
+  Copyright (c) 2006, 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.             
+
+  Module Name:  PciCfg.h
+
+  @par Revision Reference:
+  This PPI is defined in PEI CIS
+  Version 0.91.
+
+**/
+
+#ifndef __PEI_PCI_CFG_H__
+#define __PEI_PCI_CFG_H__
+
+#define EFI_PEI_PCI_CFG_PPI_INSTALLED_GUID \
+  { \
+    0xe1f2eba0, 0xf7b9, 0x4a26, {0x86, 0x20, 0x13, 0x12, 0x21, 0x64, 0x2a, 0x90 } \
+  }
+
+typedef struct _EFI_PEI_PCI_CFG_PPI   EFI_PEI_PCI_CFG_PPI;
+
+#define PEI_PCI_CFG_ADDRESS(bus, dev, func, reg)  ( \
+      (UINT64) ((((UINTN) bus) << 24) + (((UINTN) dev) << 16) + (((UINTN) func) << 8) + ((UINTN) reg)) \
+    ) & 0x00000000ffffffff
+
+/**
+  PCI read and write operation.
+
+  @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.
+  @param  Address        The physical address of the access.
+  @param  Buffer         A pointer to the buffer of data.
+
+  @retval EFI_SUCCESS           The function completed successfully.
+  @retval EFI_NOT_YET_AVAILABLE The service has not been installed.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EFI_PEI_PCI_CFG_PPI_IO) (
+  IN EFI_PEI_SERVICES             **PeiServices,
+  IN EFI_PEI_PCI_CFG_PPI          *This,
+  IN EFI_PEI_PCI_CFG_PPI_WIDTH    Width,
+  IN UINT64                       Address,
+  IN OUT VOID                     *Buffer
+  );
+
+/**
+  PCI read-modify-write operation.
+
+  @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.
+  @param  Address        The physical address of the access.
+  @param  SetBits        Value of the bits to set.
+  @param  ClearBits      Value of the bits to clear.
+
+  @retval EFI_SUCCESS           The function completed successfully.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EFI_PEI_PCI_CFG_PPI_RW) (
+  IN EFI_PEI_SERVICES             **PeiServices,
+  IN EFI_PEI_PCI_CFG_PPI          *This,
+  IN EFI_PEI_PCI_CFG_PPI_WIDTH    Width,
+  IN UINT64                       Address,
+  IN UINTN                        SetBits,
+  IN UINTN                        ClearBits
+  );
+
+/**
+  @par Ppi Description:
+  The EFI_PEI_PCI_CFG_PPI interfaces are used to abstract accesses to PCI 
+  controllers behind a PCI root bridge controller.
+
+  @param Read
+  PCI read services.  See the Read() function description.
+
+  @param Write
+  PCI write services.  See the Write() function description.
+
+  @param Modify
+  PCI read-modify-write services.  See the Modify() function description.
+
+**/
+struct _EFI_PEI_PCI_CFG_PPI {
+  EFI_PEI_PCI_CFG_PPI_IO  Read;
+  EFI_PEI_PCI_CFG_PPI_IO  Write;
+  EFI_PEI_PCI_CFG_PPI_RW  Modify;
+};
+
+extern EFI_GUID gEfiPciCfgPpiInServiceTableGuid;
+
+#endif