]>
Commit | Line | Data |
---|---|---|
3db51098 | 1 | /**@file\r |
2 | Option Rom Support for PCI Bus Driver\r | |
ead42efc | 3 | \r |
4 | Copyright (c) 2006, 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 | |
3db51098 | 13 | **/\r |
ead42efc | 14 | \r |
03417d8d | 15 | #include "PciBus.h"\r |
ead42efc | 16 | #include "PciRomTable.h"\r |
17 | \r | |
18 | typedef struct {\r | |
19 | EFI_HANDLE ImageHandle;\r | |
20 | UINTN Seg;\r | |
21 | UINT8 Bus;\r | |
22 | UINT8 Dev;\r | |
23 | UINT8 Func;\r | |
24 | UINT64 RomAddress;\r | |
25 | UINT64 RomLength;\r | |
26 | } EFI_PCI_ROM_IMAGE_MAPPING;\r | |
27 | \r | |
819d1488 | 28 | UINTN mNumberOfPciRomImages = 0;\r |
29 | UINTN mMaxNumberOfPciRomImages = 0;\r | |
30 | EFI_PCI_ROM_IMAGE_MAPPING *mRomImageTable = NULL;\r | |
ead42efc | 31 | \r |
57076f45 | 32 | /**\r |
33 | Add the Rom Image to internal database for later PCI light enumeration\r | |
34 | \r | |
35 | @param ImageHandle Option Rom image handle\r | |
36 | @param Seg Segment of PCI space\r | |
37 | @param Bus Bus NO of PCI space\r | |
38 | @param Dev Dev NO of PCI space\r | |
39 | @param Func Func NO of PCI space\r | |
40 | @param RomAddress Base address of OptionRom\r | |
41 | @param RomLength Length of rom image.\r | |
42 | **/\r | |
ead42efc | 43 | VOID\r |
44 | PciRomAddImageMapping (\r | |
45 | IN EFI_HANDLE ImageHandle,\r | |
46 | IN UINTN Seg,\r | |
47 | IN UINT8 Bus,\r | |
48 | IN UINT8 Dev,\r | |
49 | IN UINT8 Func,\r | |
50 | IN UINT64 RomAddress,\r | |
51 | IN UINT64 RomLength\r | |
52 | )\r | |
ead42efc | 53 | {\r |
54 | EFI_PCI_ROM_IMAGE_MAPPING *TempMapping;\r | |
55 | \r | |
56 | if (mNumberOfPciRomImages >= mMaxNumberOfPciRomImages) {\r | |
57 | \r | |
58 | mMaxNumberOfPciRomImages += 0x20;\r | |
59 | \r | |
60 | TempMapping = NULL;\r | |
61 | TempMapping = AllocatePool (mMaxNumberOfPciRomImages * sizeof (EFI_PCI_ROM_IMAGE_MAPPING));\r | |
62 | if (TempMapping == NULL) {\r | |
63 | return ;\r | |
64 | }\r | |
65 | \r | |
66 | CopyMem (TempMapping, mRomImageTable, mNumberOfPciRomImages * sizeof (EFI_PCI_ROM_IMAGE_MAPPING));\r | |
67 | \r | |
68 | if (mRomImageTable != NULL) {\r | |
69 | gBS->FreePool (mRomImageTable);\r | |
70 | }\r | |
71 | \r | |
72 | mRomImageTable = TempMapping;\r | |
73 | }\r | |
74 | \r | |
75 | mRomImageTable[mNumberOfPciRomImages].ImageHandle = ImageHandle;\r | |
76 | mRomImageTable[mNumberOfPciRomImages].Seg = Seg;\r | |
77 | mRomImageTable[mNumberOfPciRomImages].Bus = Bus;\r | |
78 | mRomImageTable[mNumberOfPciRomImages].Dev = Dev;\r | |
79 | mRomImageTable[mNumberOfPciRomImages].Func = Func;\r | |
80 | mRomImageTable[mNumberOfPciRomImages].RomAddress = RomAddress;\r | |
81 | mRomImageTable[mNumberOfPciRomImages].RomLength = RomLength;\r | |
82 | mNumberOfPciRomImages++;\r | |
83 | }\r | |
84 | \r | |
57076f45 | 85 | /**\r |
86 | Load all option rom image to PCI driver list.\r | |
87 | \r | |
88 | @param This Pointer to protocol instance EFI_DRIVER_BINDING_PROTOCOL\r | |
89 | @param PciRootBridgeIo Root bridge Io instance\r | |
90 | @param PciIoDevice device instance\r | |
91 | **/\r | |
ead42efc | 92 | EFI_STATUS\r |
93 | PciRomGetRomResourceFromPciOptionRomTable (\r | |
94 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
95 | IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *PciRootBridgeIo,\r | |
96 | PCI_IO_DEVICE *PciIoDevice\r | |
97 | )\r | |
ead42efc | 98 | {\r |
99 | EFI_STATUS Status;\r | |
100 | EFI_PCI_OPTION_ROM_TABLE *PciOptionRomTable;\r | |
101 | EFI_PCI_OPTION_ROM_DESCRIPTOR *PciOptionRomDescriptor;\r | |
102 | UINTN Index;\r | |
103 | \r | |
104 | Status = EfiGetSystemConfigurationTable (&gEfiPciOptionRomTableGuid, (VOID **) &PciOptionRomTable);\r | |
105 | if (EFI_ERROR (Status)) {\r | |
106 | return EFI_NOT_FOUND;\r | |
107 | }\r | |
108 | \r | |
109 | for (Index = 0; Index < PciOptionRomTable->PciOptionRomCount; Index++) {\r | |
110 | PciOptionRomDescriptor = &PciOptionRomTable->PciOptionRomDescriptors[Index];\r | |
111 | if (PciOptionRomDescriptor->Seg == PciRootBridgeIo->SegmentNumber &&\r | |
112 | PciOptionRomDescriptor->Bus == PciIoDevice->BusNumber &&\r | |
113 | PciOptionRomDescriptor->Dev == PciIoDevice->DeviceNumber &&\r | |
114 | PciOptionRomDescriptor->Func == PciIoDevice->FunctionNumber ) {\r | |
115 | \r | |
116 | PciIoDevice->PciIo.RomImage = (VOID *) (UINTN) PciOptionRomDescriptor->RomAddress;\r | |
117 | PciIoDevice->PciIo.RomSize = (UINTN) PciOptionRomDescriptor->RomLength;\r | |
118 | }\r | |
119 | }\r | |
120 | \r | |
121 | for (Index = 0; Index < mNumberOfPciRomImages; Index++) {\r | |
122 | if (mRomImageTable[Index].Seg == PciRootBridgeIo->SegmentNumber &&\r | |
123 | mRomImageTable[Index].Bus == PciIoDevice->BusNumber &&\r | |
124 | mRomImageTable[Index].Dev == PciIoDevice->DeviceNumber &&\r | |
125 | mRomImageTable[Index].Func == PciIoDevice->FunctionNumber ) {\r | |
126 | \r | |
127 | AddDriver (PciIoDevice, mRomImageTable[Index].ImageHandle);\r | |
128 | }\r | |
129 | }\r | |
130 | \r | |
131 | return EFI_SUCCESS;\r | |
132 | }\r | |
133 | \r | |
57076f45 | 134 | /**\r |
135 | Get Option rom driver's mapping for PCI device.\r | |
136 | \r | |
137 | @param PciIoDevice Device instance.\r | |
138 | \r | |
139 | **/\r | |
ead42efc | 140 | EFI_STATUS\r |
141 | PciRomGetImageMapping (\r | |
142 | PCI_IO_DEVICE *PciIoDevice\r | |
143 | )\r | |
ead42efc | 144 | {\r |
145 | EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *PciRootBridgeIo;\r | |
146 | UINTN Index;\r | |
147 | \r | |
148 | PciRootBridgeIo = PciIoDevice->PciRootBridgeIo;\r | |
149 | \r | |
150 | for (Index = 0; Index < mNumberOfPciRomImages; Index++) {\r | |
151 | if (mRomImageTable[Index].Seg == PciRootBridgeIo->SegmentNumber &&\r | |
152 | mRomImageTable[Index].Bus == PciIoDevice->BusNumber &&\r | |
153 | mRomImageTable[Index].Dev == PciIoDevice->DeviceNumber &&\r | |
154 | mRomImageTable[Index].Func == PciIoDevice->FunctionNumber ) {\r | |
155 | \r | |
156 | if (mRomImageTable[Index].ImageHandle != NULL) {\r | |
157 | AddDriver (PciIoDevice, mRomImageTable[Index].ImageHandle);\r | |
158 | } else {\r | |
159 | PciIoDevice->PciIo.RomImage = (VOID *) (UINTN) mRomImageTable[Index].RomAddress;\r | |
160 | PciIoDevice->PciIo.RomSize = (UINTN) mRomImageTable[Index].RomLength;\r | |
161 | }\r | |
162 | }\r | |
163 | }\r | |
164 | \r | |
165 | return EFI_SUCCESS;\r | |
166 | }\r |