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1 | /*++\r |
2 | \r |
3 | Copyright (c) 2006, Intel Corporation \r |
4 | All rights reserved. This program and the accompanying materials \r |
5 | are licensed and made available under the terms and conditions of the BSD License \r |
6 | which accompanies this distribution. The full text of the license may be found at \r |
7 | http://opensource.org/licenses/bsd-license.php \r |
8 | \r |
9 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r |
10 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r |
11 | \r |
12 | \r |
13 | Module Name:\r |
14 | \r |
15 | PcatIsaAcpi.c\r |
16 | \r |
17 | Abstract:\r |
18 | \r |
19 | EFI PCAT ISA ACPI Driver for a Generic PC Platform\r |
20 | \r |
21 | Revision History\r |
22 | \r |
23 | --*/\r |
24 | \r |
25 | #include "PcatIsaAcpi.h"\r |
26 | \r |
27 | //\r |
28 | // PcatIsaAcpi Driver Binding Protocol\r |
29 | //\r |
30 | EFI_DRIVER_BINDING_PROTOCOL gPcatIsaAcpiDriverBinding = {\r |
31 | PcatIsaAcpiDriverBindingSupported,\r |
32 | PcatIsaAcpiDriverBindingStart,\r |
33 | PcatIsaAcpiDriverBindingStop,\r |
34 | 0xa,\r |
35 | NULL,\r |
36 | NULL\r |
37 | };\r |
38 | \r |
39 | EFI_STATUS\r |
40 | EFIAPI\r |
41 | PcatIsaAcpiDriverEntryPoint (\r |
42 | IN EFI_HANDLE ImageHandle,\r |
43 | IN EFI_SYSTEM_TABLE *SystemTable\r |
44 | )\r |
45 | /*++\r |
46 | \r |
47 | Routine Description:\r |
48 | the entry point of the PcatIsaAcpi driver\r |
49 | \r |
50 | Arguments:\r |
51 | \r |
52 | Returns:\r |
53 | \r |
54 | --*/ \r |
55 | {\r |
56 | return EfiLibInstallDriverBindingComponentName2 (\r |
57 | ImageHandle, \r |
58 | SystemTable, \r |
59 | &gPcatIsaAcpiDriverBinding,\r |
60 | ImageHandle,\r |
61 | &gPcatIsaAcpiComponentName,\r |
62 | &gPcatIsaAcpiComponentName2\r |
63 | );\r |
64 | }\r |
65 | \r |
66 | EFI_STATUS\r |
67 | EFIAPI\r |
68 | PcatIsaAcpiDriverBindingSupported (\r |
69 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r |
70 | IN EFI_HANDLE Controller,\r |
71 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r |
72 | )\r |
73 | /*++\r |
74 | \r |
75 | Routine Description:\r |
76 | \r |
77 | ControllerDriver Protocol Method\r |
78 | \r |
79 | Arguments:\r |
80 | \r |
81 | Returns:\r |
82 | \r |
83 | --*/\r |
84 | {\r |
85 | EFI_STATUS Status;\r |
86 | EFI_PCI_IO_PROTOCOL *PciIo;\r |
87 | PCI_TYPE00 Pci;\r |
88 | \r |
89 | //\r |
90 | // Get PciIo protocol instance\r |
91 | // \r |
92 | Status = gBS->OpenProtocol (\r |
93 | Controller, \r |
94 | &gEfiPciIoProtocolGuid, \r |
95 | &PciIo,\r |
96 | This->DriverBindingHandle,\r |
97 | Controller,\r |
98 | EFI_OPEN_PROTOCOL_BY_DRIVER\r |
99 | );\r |
100 | if (EFI_ERROR(Status)) {\r |
101 | return Status;\r |
102 | }\r |
103 | \r |
104 | Status = PciIo->Pci.Read (\r |
105 | PciIo,\r |
106 | EfiPciIoWidthUint32,\r |
107 | 0,\r |
108 | sizeof(Pci) / sizeof(UINT32), \r |
109 | &Pci);\r |
110 | \r |
111 | if (!EFI_ERROR (Status)) {\r |
112 | Status = EFI_UNSUPPORTED;\r |
113 | if ((Pci.Hdr.Command & 0x03) == 0x03) {\r |
114 | if (Pci.Hdr.ClassCode[2] == PCI_CLASS_BRIDGE) {\r |
115 | //\r |
116 | // See if this is a standard PCI to ISA Bridge from the Base Code and Class Code\r |
117 | //\r |
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118 | if (Pci.Hdr.ClassCode[1] == PCI_CLASS_BRIDGE_ISA) {\r |
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119 | Status = EFI_SUCCESS;\r |
120 | } \r |
121 | \r |
122 | //\r |
123 | // See if this is an Intel PCI to ISA bridge in Positive Decode Mode\r |
124 | //\r |
bc14bdb3 |
125 | if (Pci.Hdr.ClassCode[1] == PCI_CLASS_BRIDGE_ISA_PDECODE &&\r |
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126 | Pci.Hdr.VendorId == 0x8086 && \r |
127 | Pci.Hdr.DeviceId == 0x7110) {\r |
128 | Status = EFI_SUCCESS;\r |
129 | }\r |
130 | } \r |
131 | }\r |
132 | }\r |
133 | \r |
134 | gBS->CloseProtocol (\r |
135 | Controller, \r |
136 | &gEfiPciIoProtocolGuid, \r |
137 | This->DriverBindingHandle, \r |
138 | Controller \r |
139 | );\r |
140 | \r |
141 | return Status;\r |
142 | }\r |
143 | \r |
144 | EFI_STATUS\r |
145 | EFIAPI\r |
146 | PcatIsaAcpiDriverBindingStart (\r |
147 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r |
148 | IN EFI_HANDLE Controller,\r |
149 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r |
150 | )\r |
151 | /*++\r |
152 | \r |
153 | Routine Description:\r |
154 | Install EFI_ISA_ACPI_PROTOCOL\r |
155 | \r |
156 | Arguments:\r |
157 | \r |
158 | Returns:\r |
159 | \r |
160 | --*/\r |
161 | {\r |
162 | EFI_STATUS Status;\r |
163 | EFI_PCI_IO_PROTOCOL *PciIo;\r |
164 | PCAT_ISA_ACPI_DEV *PcatIsaAcpiDev;\r |
165 | \r |
166 | PcatIsaAcpiDev = NULL;\r |
167 | //\r |
168 | // Open the PCI I/O Protocol Interface\r |
169 | //\r |
170 | PciIo = NULL;\r |
171 | Status = gBS->OpenProtocol (\r |
172 | Controller, \r |
173 | &gEfiPciIoProtocolGuid, \r |
174 | &PciIo,\r |
175 | This->DriverBindingHandle, \r |
176 | Controller, \r |
177 | EFI_OPEN_PROTOCOL_BY_DRIVER \r |
178 | );\r |
179 | if (EFI_ERROR (Status)) {\r |
180 | goto Done;\r |
181 | }\r |
182 | \r |
183 | Status = PciIo->Attributes (\r |
184 | PciIo, \r |
185 | EfiPciIoAttributeOperationEnable, \r |
186 | EFI_PCI_DEVICE_ENABLE | EFI_PCI_IO_ATTRIBUTE_ISA_IO | EFI_PCI_IO_ATTRIBUTE_ISA_MOTHERBOARD_IO, \r |
187 | NULL \r |
188 | );\r |
189 | if (EFI_ERROR (Status)) {\r |
190 | goto Done;\r |
191 | }\r |
192 | \r |
193 | //\r |
194 | // Allocate memory for the PCAT ISA ACPI Device structure\r |
195 | //\r |
196 | PcatIsaAcpiDev = NULL;\r |
197 | Status = gBS->AllocatePool (\r |
198 | EfiBootServicesData,\r |
199 | sizeof(PCAT_ISA_ACPI_DEV),\r |
200 | &PcatIsaAcpiDev\r |
201 | );\r |
202 | if (EFI_ERROR (Status)) {\r |
203 | goto Done;\r |
204 | }\r |
205 | \r |
206 | //\r |
207 | // Initialize the PCAT ISA ACPI Device structure\r |
208 | //\r |
209 | PcatIsaAcpiDev->Signature = PCAT_ISA_ACPI_DEV_SIGNATURE;\r |
210 | PcatIsaAcpiDev->Handle = Controller;\r |
211 | PcatIsaAcpiDev->PciIo = PciIo;\r |
212 | \r |
213 | //\r |
214 | // IsaAcpi interface\r |
215 | //\r |
216 | (PcatIsaAcpiDev->IsaAcpi).DeviceEnumerate = IsaDeviceEnumerate;\r |
217 | (PcatIsaAcpiDev->IsaAcpi).SetPower = IsaDeviceSetPower;\r |
218 | (PcatIsaAcpiDev->IsaAcpi).GetCurResource = IsaGetCurrentResource;\r |
219 | (PcatIsaAcpiDev->IsaAcpi).GetPosResource = IsaGetPossibleResource;\r |
220 | (PcatIsaAcpiDev->IsaAcpi).SetResource = IsaSetResource;\r |
221 | (PcatIsaAcpiDev->IsaAcpi).EnableDevice = IsaEnableDevice;\r |
222 | (PcatIsaAcpiDev->IsaAcpi).InitDevice = IsaInitDevice;\r |
223 | (PcatIsaAcpiDev->IsaAcpi).InterfaceInit = IsaInterfaceInit;\r |
224 | \r |
225 | //\r |
226 | // Install the ISA ACPI Protocol interface\r |
227 | //\r |
228 | Status = gBS->InstallMultipleProtocolInterfaces (\r |
229 | &Controller,\r |
230 | &gEfiIsaAcpiProtocolGuid, &PcatIsaAcpiDev->IsaAcpi,\r |
231 | NULL\r |
232 | );\r |
233 | \r |
234 | Done:\r |
235 | if (EFI_ERROR (Status)) {\r |
236 | if (PciIo) {\r |
237 | PciIo->Attributes (\r |
238 | PciIo, \r |
239 | EfiPciIoAttributeOperationDisable, \r |
240 | EFI_PCI_DEVICE_ENABLE | EFI_PCI_IO_ATTRIBUTE_ISA_IO | EFI_PCI_IO_ATTRIBUTE_ISA_MOTHERBOARD_IO,\r |
241 | NULL \r |
242 | );\r |
243 | }\r |
244 | gBS->CloseProtocol (\r |
245 | Controller, \r |
246 | &gEfiPciIoProtocolGuid, \r |
247 | This->DriverBindingHandle, \r |
248 | Controller\r |
249 | );\r |
250 | if (PcatIsaAcpiDev != NULL) {\r |
251 | gBS->FreePool (PcatIsaAcpiDev);\r |
252 | }\r |
253 | return Status;\r |
254 | }\r |
255 | \r |
256 | return EFI_SUCCESS;\r |
257 | }\r |
258 | \r |
259 | EFI_STATUS\r |
260 | EFIAPI\r |
261 | PcatIsaAcpiDriverBindingStop (\r |
262 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r |
263 | IN EFI_HANDLE Controller,\r |
264 | IN UINTN NumberOfChildren,\r |
265 | IN EFI_HANDLE *ChildHandleBuffer\r |
266 | )\r |
267 | /*++\r |
268 | \r |
269 | Routine Description:\r |
270 | \r |
271 | Arguments:\r |
272 | \r |
273 | Returns:\r |
274 | \r |
275 | --*/\r |
276 | {\r |
277 | EFI_STATUS Status;\r |
278 | EFI_ISA_ACPI_PROTOCOL *IsaAcpi;\r |
279 | PCAT_ISA_ACPI_DEV *PcatIsaAcpiDev;\r |
280 | \r |
281 | //\r |
282 | // Get the ISA ACPI Protocol Interface\r |
283 | // \r |
284 | Status = gBS->OpenProtocol (\r |
285 | Controller, \r |
286 | &gEfiIsaAcpiProtocolGuid, \r |
287 | &IsaAcpi,\r |
288 | This->DriverBindingHandle, \r |
289 | Controller, \r |
290 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r |
291 | );\r |
292 | if (EFI_ERROR (Status)) {\r |
293 | return Status;\r |
294 | }\r |
295 | \r |
296 | //\r |
297 | // Get the PCAT ISA ACPI Device structure from the ISA ACPI Protocol\r |
298 | //\r |
299 | PcatIsaAcpiDev = PCAT_ISA_ACPI_DEV_FROM_THIS (IsaAcpi);\r |
300 | \r |
301 | PcatIsaAcpiDev->PciIo->Attributes (\r |
302 | PcatIsaAcpiDev->PciIo, \r |
303 | EfiPciIoAttributeOperationDisable, \r |
304 | EFI_PCI_DEVICE_ENABLE | EFI_PCI_IO_ATTRIBUTE_ISA_IO | EFI_PCI_IO_ATTRIBUTE_ISA_MOTHERBOARD_IO,\r |
305 | NULL \r |
306 | );\r |
307 | \r |
308 | //\r |
309 | // Uninstall protocol interface: EFI_ISA_ACPI_PROTOCOL\r |
310 | //\r |
311 | Status = gBS->UninstallProtocolInterface (\r |
312 | Controller,\r |
313 | &gEfiIsaAcpiProtocolGuid, &PcatIsaAcpiDev->IsaAcpi\r |
314 | );\r |
315 | if (EFI_ERROR (Status)) {\r |
316 | return Status;\r |
317 | }\r |
318 | \r |
319 | gBS->CloseProtocol (\r |
320 | Controller, \r |
321 | &gEfiPciIoProtocolGuid, \r |
322 | This->DriverBindingHandle, \r |
323 | Controller\r |
324 | );\r |
325 | \r |
326 | gBS->FreePool (PcatIsaAcpiDev);\r |
327 | \r |
328 | return EFI_SUCCESS;\r |
329 | }\r |