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9060e3ec 1/** @file\r
2 Internal library declaration for PCI Bus module.\r
3\r
306bbe82 4Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>\r
cd5ebaa0 5This program and the accompanying materials\r
9060e3ec 6are licensed and made available under the terms and conditions of the BSD License\r
7which accompanies this distribution. The full text of the license may be found at\r
8http://opensource.org/licenses/bsd-license.php\r
9\r
10THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
11WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
12\r
13**/\r
14\r
15#ifndef _EFI_PCI_LIB_H_\r
16#define _EFI_PCI_LIB_H_\r
17\r
18\r
19typedef struct {\r
20 EFI_HANDLE Handle;\r
21} EFI_DEVICE_HANDLE_EXTENDED_DATA_PAYLOAD;\r
22\r
23typedef struct {\r
24 UINT32 Bar;\r
25 UINT16 DevicePathSize;\r
26 UINT16 ReqResSize;\r
27 UINT16 AllocResSize;\r
28 UINT8 *DevicePath;\r
29 UINT8 *ReqRes;\r
30 UINT8 *AllocRes;\r
31} EFI_RESOURCE_ALLOC_FAILURE_ERROR_DATA_PAYLOAD;\r
32\r
33\r
34/**\r
35 Retrieve the PCI Card device BAR information via PciIo interface.\r
36\r
37 @param PciIoDevice PCI Card device instance.\r
38\r
39**/\r
40VOID\r
41GetBackPcCardBar (\r
42 IN PCI_IO_DEVICE *PciIoDevice\r
43 );\r
44\r
45/**\r
46 Remove rejected pci device from specific root bridge\r
47 handle.\r
48\r
49 @param RootBridgeHandle Specific parent root bridge handle.\r
50 @param Bridge Bridge device instance.\r
51\r
52**/\r
53VOID\r
54RemoveRejectedPciDevices (\r
55 IN EFI_HANDLE RootBridgeHandle,\r
56 IN PCI_IO_DEVICE *Bridge\r
57 );\r
58\r
59/**\r
60 Submits the I/O and memory resource requirements for the specified PCI Host Bridge.\r
61\r
62 @param PciResAlloc Point to protocol instance of EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL.\r
63\r
64 @retval EFI_SUCCESS Successfully finished resource allocation.\r
65 @retval EFI_NOT_FOUND Cannot get root bridge instance.\r
66 @retval EFI_OUT_OF_RESOURCES Platform failed to program the resources if no hot plug supported.\r
67 @retval other Some error occurred when allocating resources for the PCI Host Bridge.\r
68\r
69 @note Feature flag PcdPciBusHotplugDeviceSupport determine whether need support hotplug.\r
70\r
71**/\r
72EFI_STATUS\r
73PciHostBridgeResourceAllocator (\r
74 IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *PciResAlloc\r
75 );\r
76\r
306bbe82 77/**\r
78 Allocate NumberOfBuses buses and return the next available PCI bus number.\r
79\r
80 @param Bridge Bridge device instance.\r
81 @param StartBusNumber Current available PCI bus number.\r
82 @param NumberOfBuses Number of buses enumerated below the StartBusNumber.\r
83 @param NextBusNumber Next available PCI bus number.\r
84\r
85 @retval EFI_SUCCESS Available bus number resource is enough. Next available PCI bus number\r
86 is returned in NextBusNumber.\r
87 @retval EFI_OUT_OF_RESOURCES Available bus number resource is not enough for allocation.\r
88\r
89**/\r
90EFI_STATUS\r
91PciAllocateBusNumber (\r
92 IN PCI_IO_DEVICE *Bridge,\r
93 IN UINT8 StartBusNumber,\r
94 IN UINT8 NumberOfBuses,\r
95 OUT UINT8 *NextBusNumber\r
96 );\r
97\r
9060e3ec 98/**\r
99 Scan pci bus and assign bus number to the given PCI bus system.\r
100\r
101 @param Bridge Bridge device instance.\r
102 @param StartBusNumber start point.\r
103 @param SubBusNumber Point to sub bus number.\r
104 @param PaddedBusRange Customized bus number.\r
105\r
106 @retval EFI_SUCCESS Successfully scanned and assigned bus number.\r
107 @retval other Some error occurred when scanning pci bus.\r
108\r
109 @note Feature flag PcdPciBusHotplugDeviceSupport determine whether need support hotplug.\r
110\r
111**/\r
112EFI_STATUS\r
113PciScanBus (\r
114 IN PCI_IO_DEVICE *Bridge,\r
115 IN UINT8 StartBusNumber,\r
116 OUT UINT8 *SubBusNumber,\r
117 OUT UINT8 *PaddedBusRange\r
118 );\r
119\r
120/**\r
121 Process Option Rom on the specified root bridge.\r
122\r
123 @param Bridge Pci root bridge device instance.\r
124\r
125 @retval EFI_SUCCESS Success process.\r
126 @retval other Some error occurred when processing Option Rom on the root bridge.\r
127\r
128**/\r
129EFI_STATUS\r
130PciRootBridgeP2CProcess (\r
131 IN PCI_IO_DEVICE *Bridge\r
132 );\r
133\r
134/**\r
135 Process Option Rom on the specified host bridge.\r
136\r
137 @param PciResAlloc Pointer to instance of EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL.\r
138\r
139 @retval EFI_SUCCESS Success process.\r
140 @retval EFI_NOT_FOUND Can not find the root bridge instance.\r
141 @retval other Some error occurred when processing Option Rom on the host bridge.\r
142\r
143**/\r
144EFI_STATUS\r
145PciHostBridgeP2CProcess (\r
146 IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *PciResAlloc\r
147 );\r
148\r
149/**\r
150 This function is used to enumerate the entire host bridge\r
151 in a given platform.\r
152\r
153 @param PciResAlloc A pointer to the PCI Host Resource Allocation protocol.\r
154\r
155 @retval EFI_SUCCESS Successfully enumerated the host bridge.\r
156 @retval EFI_OUT_OF_RESOURCES No enough memory available.\r
157 @retval other Some error occurred when enumerating the host bridge.\r
158\r
159**/\r
160EFI_STATUS\r
161PciHostBridgeEnumerator (\r
162 IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *PciResAlloc\r
163 );\r
164\r
165#endif\r