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1 | /** @file\r | |
2 | Set up ROM Table for PCI Bus module.\r | |
3 | \r | |
4 | Copyright (c) 2006 - 2017, Intel Corporation. All rights reserved.<BR>\r | |
5 | 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 | **/\r | |
14 | \r | |
15 | #include "PciBus.h"\r | |
16 | \r | |
17 | //\r | |
18 | // PCI ROM image information\r | |
19 | //\r | |
20 | typedef struct {\r | |
21 | EFI_HANDLE ImageHandle;\r | |
22 | UINTN Seg;\r | |
23 | UINT8 Bus;\r | |
24 | UINT8 Dev;\r | |
25 | UINT8 Func;\r | |
26 | VOID *RomImage;\r | |
27 | UINT64 RomSize;\r | |
28 | } PCI_ROM_IMAGE;\r | |
29 | \r | |
30 | UINTN mNumberOfPciRomImages = 0;\r | |
31 | UINTN mMaxNumberOfPciRomImages = 0;\r | |
32 | PCI_ROM_IMAGE *mRomImageTable = NULL;\r | |
33 | \r | |
34 | /**\r | |
35 | Add the Rom Image to internal database for later PCI light enumeration.\r | |
36 | \r | |
37 | @param ImageHandle Option Rom image handle.\r | |
38 | @param Seg Segment of PCI space.\r | |
39 | @param Bus Bus NO of PCI space.\r | |
40 | @param Dev Dev NO of PCI space.\r | |
41 | @param Func Func NO of PCI space.\r | |
42 | @param RomImage Option Rom buffer.\r | |
43 | @param RomSize Size of Option Rom buffer.\r | |
44 | **/\r | |
45 | VOID\r | |
46 | PciRomAddImageMapping (\r | |
47 | IN EFI_HANDLE ImageHandle,\r | |
48 | IN UINTN Seg,\r | |
49 | IN UINT8 Bus,\r | |
50 | IN UINT8 Dev,\r | |
51 | IN UINT8 Func,\r | |
52 | IN VOID *RomImage,\r | |
53 | IN UINT64 RomSize\r | |
54 | )\r | |
55 | {\r | |
56 | UINTN Index;\r | |
57 | PCI_ROM_IMAGE *NewTable;\r | |
58 | \r | |
59 | for (Index = 0; Index < mNumberOfPciRomImages; Index++) {\r | |
60 | if (mRomImageTable[Index].Seg == Seg &&\r | |
61 | mRomImageTable[Index].Bus == Bus &&\r | |
62 | mRomImageTable[Index].Dev == Dev &&\r | |
63 | mRomImageTable[Index].Func == Func) {\r | |
64 | //\r | |
65 | // Expect once RomImage and RomSize are recorded, they will be passed in\r | |
66 | // later when updating ImageHandle\r | |
67 | //\r | |
68 | ASSERT ((mRomImageTable[Index].RomImage == NULL) || (RomImage == mRomImageTable[Index].RomImage));\r | |
69 | ASSERT ((mRomImageTable[Index].RomSize == 0 ) || (RomSize == mRomImageTable[Index].RomSize ));\r | |
70 | break;\r | |
71 | }\r | |
72 | }\r | |
73 | \r | |
74 | if (Index == mNumberOfPciRomImages) {\r | |
75 | //\r | |
76 | // Rom Image Table buffer needs to grow.\r | |
77 | //\r | |
78 | if (mNumberOfPciRomImages == mMaxNumberOfPciRomImages) {\r | |
79 | NewTable = ReallocatePool (\r | |
80 | mMaxNumberOfPciRomImages * sizeof (PCI_ROM_IMAGE),\r | |
81 | (mMaxNumberOfPciRomImages + 0x20) * sizeof (PCI_ROM_IMAGE),\r | |
82 | mRomImageTable\r | |
83 | );\r | |
84 | if (NewTable == NULL) {\r | |
85 | return ;\r | |
86 | }\r | |
87 | \r | |
88 | mRomImageTable = NewTable;\r | |
89 | mMaxNumberOfPciRomImages += 0x20;\r | |
90 | }\r | |
91 | //\r | |
92 | // Record the new PCI device\r | |
93 | //\r | |
94 | mRomImageTable[Index].Seg = Seg;\r | |
95 | mRomImageTable[Index].Bus = Bus;\r | |
96 | mRomImageTable[Index].Dev = Dev;\r | |
97 | mRomImageTable[Index].Func = Func;\r | |
98 | mNumberOfPciRomImages++;\r | |
99 | }\r | |
100 | \r | |
101 | mRomImageTable[Index].ImageHandle = ImageHandle;\r | |
102 | mRomImageTable[Index].RomImage = RomImage;\r | |
103 | mRomImageTable[Index].RomSize = RomSize;\r | |
104 | }\r | |
105 | \r | |
106 | /**\r | |
107 | Get Option rom driver's mapping for PCI device.\r | |
108 | \r | |
109 | @param PciIoDevice Device instance.\r | |
110 | \r | |
111 | @retval TRUE Found Image mapping.\r | |
112 | @retval FALSE Cannot found image mapping.\r | |
113 | \r | |
114 | **/\r | |
115 | BOOLEAN\r | |
116 | PciRomGetImageMapping (\r | |
117 | IN PCI_IO_DEVICE *PciIoDevice\r | |
118 | )\r | |
119 | {\r | |
120 | EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *PciRootBridgeIo;\r | |
121 | UINTN Index;\r | |
122 | \r | |
123 | PciRootBridgeIo = PciIoDevice->PciRootBridgeIo;\r | |
124 | \r | |
125 | for (Index = 0; Index < mNumberOfPciRomImages; Index++) {\r | |
126 | if (mRomImageTable[Index].Seg == PciRootBridgeIo->SegmentNumber &&\r | |
127 | mRomImageTable[Index].Bus == PciIoDevice->BusNumber &&\r | |
128 | mRomImageTable[Index].Dev == PciIoDevice->DeviceNumber &&\r | |
129 | mRomImageTable[Index].Func == PciIoDevice->FunctionNumber ) {\r | |
130 | \r | |
131 | if (mRomImageTable[Index].ImageHandle != NULL) {\r | |
132 | AddDriver (PciIoDevice, mRomImageTable[Index].ImageHandle, NULL);\r | |
133 | }\r | |
134 | PciIoDevice->PciIo.RomImage = mRomImageTable[Index].RomImage;\r | |
135 | PciIoDevice->PciIo.RomSize = mRomImageTable[Index].RomSize;\r | |
136 | return TRUE;\r | |
137 | }\r | |
138 | }\r | |
139 | \r | |
140 | return FALSE;\r | |
141 | }\r |