1 /*++ 2 3 Copyright (c) 2004 - 2014, Intel Corporation. All rights reserved.<BR> 4 5 This program and the accompanying materials are licensed and made available under 7 the terms and conditions of the BSD License that accompanies this distribution. 9 The full text of the license may be found at 11 http://opensource.org/licenses/bsd-license.php. 13 15 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 17 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 19 21 23 **/ 24 25 #ifndef __MMIO_DEVICE_H__ 26 #define __MMIO_DEVICE_H__ 27 28 // 29 // Protocol to define for the MMIO device 30 // 31 typedef struct { 32 // 33 // Address of a GUID 34 // 35 EFI_GUID *Guid; 36 37 // 38 // Context for the protocol 39 // 40 VOID *Context; 41 } EFI_MMIO_DEVICE_PROTOCOL_ITEM; 42 43 44 typedef struct _EFI_MMIO_DEVICE_PROTOCOL EFI_MMIO_DEVICE_PROTOCOL; 45 46 // 47 // The MMIO device protocol defines a memory mapped I/O device 48 // for use by the system. 49 // 50 struct _EFI_MMIO_DEVICE_PROTOCOL { 51 // 52 // Pointer to an ACPI_EXTENDED_HID_DEVICE_PATH structure 53 // containing HID/HidStr and CID/CidStr values. 54 // 55 // See the note below associated with the UnitIdentification 56 // field. 57 // 58 CONST ACPI_EXTENDED_HID_DEVICE_PATH *AcpiPath; 59 60 // 61 // Allow the use of a shared template for the AcpiPath. 62 // 63 // If this value is non-zero UID value then the AcpiPath must 64 // be a template which contains only the HID/HidStr and CID/CidStr 65 // values. The UID/UidStr values in the AcpiPath must be zero! 66 // 67 // If this value is zero then the AcpiPath is not shared and 68 // must contain either a non-zero UID value or a UidStr value. 69 // 70 UINT32 UnitIdentification; 71 72 // 73 // Hardware revision - ACPI _HRV value 74 // 75 UINT32 HardwareRevision; 76 77 // 78 // Pointer to a data structure containing the controller 79 // resources and configuration. At a minimum this points 80 // to an EFI_PHYSICAL_ADDRESS for the base address of the 81 // MMIO device. 82 // 83 CONST VOID *DriverResources; 84 85 // 86 // Number of protocols in the array 87 // 88 UINTN ProtocolCount; 89 90 // 91 // List of protocols to define 92 // 93 CONST EFI_MMIO_DEVICE_PROTOCOL_ITEM *ProtocolArray; 94 }; 95 96 extern EFI_GUID gEfiMmioDeviceProtocolGuid; 97 98 #endif // __MMIO_DEVICE_H__ 99