1 /** @file 2 3 Copyright (C) 2016, Linaro Ltd. All rights reserved.<BR> 4 5 This program and the accompanying materials are licensed and made available 6 under the terms and conditions of the BSD License which accompanies this 7 distribution. The full text of the license may be found at 8 http://opensource.org/licenses/bsd-license.php 9 10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, WITHOUT 11 WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 12 13 **/ 14 15 #ifndef __NON_DISCOVERABLE_PCI_DEVICE_IO_H__ 16 #define __NON_DISCOVERABLE_PCI_DEVICE_IO_H__ 17 18 #include <PiDxe.h> 19 20 #include <Library/BaseMemoryLib.h> 21 #include <Library/DebugLib.h> 22 #include <Library/MemoryAllocationLib.h> 23 #include <Library/UefiBootServicesTableLib.h> 24 #include <Library/UefiLib.h> 25 26 #include <IndustryStandard/Pci.h> 27 28 #include <Protocol/ComponentName.h> 29 #include <Protocol/NonDiscoverableDevice.h> 30 #include <Protocol/Cpu.h> 31 #include <Protocol/PciIo.h> 32 33 #define NON_DISCOVERABLE_PCI_DEVICE_SIG SIGNATURE_32 ('P', 'P', 'I', 'D') 34 35 #define NON_DISCOVERABLE_PCI_DEVICE_FROM_PCI_IO(PciIoPointer) \ 36 CR (PciIoPointer, NON_DISCOVERABLE_PCI_DEVICE, PciIo, \ 37 NON_DISCOVERABLE_PCI_DEVICE_SIG) 38 39 #define PCI_ID_VENDOR_UNKNOWN 0xffff 40 #define PCI_ID_DEVICE_DONTCARE 0x0000 41 42 #define PCI_MAX_BARS 6 43 44 extern EFI_CPU_ARCH_PROTOCOL *mCpu; 45 46 typedef struct { 47 // 48 // The linked-list next pointer 49 // 50 LIST_ENTRY List; 51 // 52 // The address of the uncached allocation 53 // 54 VOID *HostAddress; 55 // 56 // The number of pages in the allocation 57 // 58 UINTN NumPages; 59 // 60 // The attributes of the allocation 61 // 62 UINT64 Attributes; 63 } NON_DISCOVERABLE_DEVICE_UNCACHED_ALLOCATION; 64 65 typedef struct { 66 UINT32 Signature; 67 // 68 // The bound non-discoverable device protocol instance 69 // 70 NON_DISCOVERABLE_DEVICE *Device; 71 // 72 // The exposed PCI I/O protocol instance. 73 // 74 EFI_PCI_IO_PROTOCOL PciIo; 75 // 76 // The emulated PCI config space of the device. Only the minimally required 77 // items are assigned. 78 // 79 PCI_TYPE00 ConfigSpace; 80 // 81 // The first virtual BAR to assign based on the resources described 82 // by the non-discoverable device. 83 // 84 UINT32 BarOffset; 85 // 86 // The number of virtual BARs we expose based on the number of 87 // resources 88 // 89 UINT32 BarCount; 90 // 91 // The PCI I/O attributes for this device 92 // 93 UINT64 Attributes; 94 // 95 // Whether this device has been enabled 96 // 97 BOOLEAN Enabled; 98 // 99 // Linked list to keep track of uncached allocations performed 100 // on behalf of this device 101 // 102 LIST_ENTRY UncachedAllocationList; 103 } NON_DISCOVERABLE_PCI_DEVICE; 104 105 /** 106 Initialize PciIo Protocol. 107 108 @param Device Point to NON_DISCOVERABLE_PCI_DEVICE instance. 109 110 **/ 111 VOID 112 InitializePciIoProtocol ( 113 NON_DISCOVERABLE_PCI_DEVICE *Device 114 ); 115 116 extern EFI_COMPONENT_NAME_PROTOCOL gComponentName; 117 extern EFI_COMPONENT_NAME2_PROTOCOL gComponentName2; 118 119 #endif 120
