| 1 | /** @file\r |
| 2 | This file declares the PciCfg PPI used to access the PCI configuration space in PEI\r |
| 3 | \r |
| 4 | Copyright (c) 2006 - 2009, Intel Corporation \r |
| 5 | All rights reserved. This program and the accompanying materials \r |
| 6 | are licensed and made available under the terms and conditions of the BSD License \r |
| 7 | which accompanies this distribution. The full text of the license may be found at \r |
| 8 | http://opensource.org/licenses/bsd-license.php \r |
| 9 | \r |
| 10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r |
| 11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r |
| 12 | \r |
| 13 | @par Revision Reference:\r |
| 14 | This PPI is defined in PEI CIS\r |
| 15 | Version 0.91.\r |
| 16 | \r |
| 17 | **/\r |
| 18 | \r |
| 19 | #ifndef __PEI_PCI_CFG_H__\r |
| 20 | #define __PEI_PCI_CFG_H__\r |
| 21 | \r |
| 22 | #include <Ppi/PciCfg2.h>\r |
| 23 | //\r |
| 24 | // Get the common definitions for EFI_PEI_PCI_CFG_PPI_WIDTH.\r |
| 25 | //\r |
| 26 | \r |
| 27 | #define EFI_PEI_PCI_CFG_PPI_INSTALLED_GUID \\r |
| 28 | { \\r |
| 29 | 0xe1f2eba0, 0xf7b9, 0x4a26, {0x86, 0x20, 0x13, 0x12, 0x21, 0x64, 0x2a, 0x90 } \\r |
| 30 | }\r |
| 31 | \r |
| 32 | typedef struct _EFI_PEI_PCI_CFG_PPI EFI_PEI_PCI_CFG_PPI;\r |
| 33 | \r |
| 34 | #define PEI_PCI_CFG_ADDRESS(bus, dev, func, reg) ( \\r |
| 35 | (UINT64) ((((UINTN) bus) << 24) + (((UINTN) dev) << 16) + (((UINTN) func) << 8) + ((UINTN) reg)) \\r |
| 36 | ) & 0x00000000ffffffff\r |
| 37 | \r |
| 38 | /**\r |
| 39 | PCI read and write operation.\r |
| 40 | \r |
| 41 | @param PeiServices An indirect pointer to the PEI Services Table\r |
| 42 | published by the PEI Foundation.\r |
| 43 | @param This Pointer to local data for the interface.\r |
| 44 | @param Width The width of the access. Enumerated in bytes.\r |
| 45 | @param Address The physical address of the access.\r |
| 46 | @param Buffer A pointer to the buffer of data.\r |
| 47 | \r |
| 48 | @retval EFI_SUCCESS The function completed successfully.\r |
| 49 | @retval EFI_NOT_YET_AVAILABLE The service has not been installed.\r |
| 50 | \r |
| 51 | **/\r |
| 52 | typedef\r |
| 53 | EFI_STATUS\r |
| 54 | (EFIAPI *EFI_PEI_PCI_CFG_PPI_IO)(\r |
| 55 | IN EFI_PEI_SERVICES **PeiServices,\r |
| 56 | IN EFI_PEI_PCI_CFG_PPI *This,\r |
| 57 | IN EFI_PEI_PCI_CFG_PPI_WIDTH Width,\r |
| 58 | IN UINT64 Address,\r |
| 59 | IN OUT VOID *Buffer\r |
| 60 | );\r |
| 61 | \r |
| 62 | /**\r |
| 63 | PCI read-modify-write operation.\r |
| 64 | \r |
| 65 | @param PeiServices An indirect pointer to the PEI Services Table\r |
| 66 | published by the PEI Foundation.\r |
| 67 | @param This Pointer to local data for the interface.\r |
| 68 | @param Width The width of the access. Enumerated in bytes.\r |
| 69 | @param Address The physical address of the access.\r |
| 70 | @param SetBits Value of the bits to set.\r |
| 71 | @param ClearBits Value of the bits to clear.\r |
| 72 | \r |
| 73 | @retval EFI_SUCCESS The function completed successfully.\r |
| 74 | \r |
| 75 | **/\r |
| 76 | typedef\r |
| 77 | EFI_STATUS\r |
| 78 | (EFIAPI *EFI_PEI_PCI_CFG_PPI_RW)(\r |
| 79 | IN EFI_PEI_SERVICES **PeiServices,\r |
| 80 | IN EFI_PEI_PCI_CFG_PPI *This,\r |
| 81 | IN EFI_PEI_PCI_CFG_PPI_WIDTH Width,\r |
| 82 | IN UINT64 Address,\r |
| 83 | IN UINTN SetBits,\r |
| 84 | IN UINTN ClearBits\r |
| 85 | );\r |
| 86 | \r |
| 87 | /**\r |
| 88 | The EFI_PEI_PCI_CFG_PPI interfaces are used to abstract accesses to PCI \r |
| 89 | controllers behind a PCI root bridge controller.\r |
| 90 | **/\r |
| 91 | struct _EFI_PEI_PCI_CFG_PPI {\r |
| 92 | ///\r |
| 93 | /// PCI read services. See the Read() function description.\r |
| 94 | ///\r |
| 95 | EFI_PEI_PCI_CFG_PPI_IO Read;\r |
| 96 | \r |
| 97 | ///\r |
| 98 | /// PCI write services. See the Write() function description.\r |
| 99 | ///\r |
| 100 | EFI_PEI_PCI_CFG_PPI_IO Write;\r |
| 101 | \r |
| 102 | ///\r |
| 103 | /// PCI read-modify-write services. See the Modify() function description.\r |
| 104 | ///\r |
| 105 | EFI_PEI_PCI_CFG_PPI_RW Modify;\r |
| 106 | };\r |
| 107 | \r |
| 108 | extern EFI_GUID gEfiPciCfgPpiInServiceTableGuid;\r |
| 109 | \r |
| 110 | #endif\r |