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Commit | Line | Data |
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f8cd287b | 1 | /**@file\r |
c3902377 | 2 | \r |
3 | Discovers all the ISA Controllers and their resources by using the ISA PnP \r | |
4 | Protocol, produces an instance of the ISA I/O Protocol for every ISA \r | |
5 | Controller found, loads and initializes all ISA Device Drivers, matches ISA\r | |
6 | Device Drivers with their respective ISA Controllers in a deterministic \r | |
7 | manner, and informs a ISA Device Driver when it is to start managing an ISA\r | |
8 | Controller. \r | |
f8cd287b | 9 | \r |
10 | Copyright (c) 2006 - 2007, Intel Corporation.<BR>\r | |
11 | All rights reserved. This program and the accompanying materials\r | |
12 | are licensed and made available under the terms and conditions of the BSD License\r | |
13 | which accompanies this distribution. The full text of the license may be found at\r | |
14 | http://opensource.org/licenses/bsd-license.php\r | |
15 | \r | |
16 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
17 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
c3902377 | 18 | \r |
f8cd287b | 19 | **/\r |
c3902377 | 20 | \r |
c3902377 | 21 | \r |
22 | #include "InternalIsaBus.h"\r | |
23 | \r | |
24 | //\r | |
25 | // ISA Bus Driver Global Variables\r | |
26 | //\r | |
27 | EFI_DRIVER_BINDING_PROTOCOL gIsaBusControllerDriver = {\r | |
28 | IsaBusControllerDriverSupported,\r | |
29 | IsaBusControllerDriverStart,\r | |
30 | IsaBusControllerDriverStop,\r | |
31 | 0xa,\r | |
32 | NULL,\r | |
33 | NULL\r | |
34 | };\r | |
35 | \r | |
c55fa8cc | 36 | /**\r |
37 | The user Entry Point for module IsaBus. The user code starts with this function.\r | |
38 | \r | |
39 | @param[in] ImageHandle The firmware allocated handle for the EFI image. \r | |
40 | @param[in] SystemTable A pointer to the EFI System Table.\r | |
41 | \r | |
42 | @retval EFI_SUCCESS The entry point is executed successfully.\r | |
43 | @retval other Some error occurs when executing this entry point.\r | |
44 | \r | |
45 | **/\r | |
46 | EFI_STATUS\r | |
47 | EFIAPI\r | |
48 | InitializeIsaBus(\r | |
49 | IN EFI_HANDLE ImageHandle,\r | |
50 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
51 | )\r | |
52 | {\r | |
53 | EFI_STATUS Status;\r | |
54 | \r | |
55 | //\r | |
56 | // Install driver model protocol(s).\r | |
57 | //\r | |
f3d08ccf | 58 | Status = EfiLibInstallDriverBindingComponentName2 (\r |
c55fa8cc | 59 | ImageHandle,\r |
60 | SystemTable,\r | |
61 | &gIsaBusControllerDriver,\r | |
62 | ImageHandle,\r | |
63 | &gIsaBusComponentName,\r | |
f3d08ccf | 64 | &gIsaBusComponentName2\r |
c55fa8cc | 65 | );\r |
66 | ASSERT_EFI_ERROR (Status);\r | |
67 | \r | |
68 | \r | |
69 | return Status;\r | |
70 | }\r | |
71 | \r | |
72 | \r | |
c3902377 | 73 | EFI_STATUS\r |
74 | EFIAPI\r | |
75 | IsaBusControllerDriverSupported (\r | |
76 | IN EFI_DRIVER_BINDING_PROTOCOL * This,\r | |
77 | IN EFI_HANDLE Controller,\r | |
78 | IN EFI_DEVICE_PATH_PROTOCOL * RemainingDevicePath OPTIONAL\r | |
79 | )\r | |
bcd70414 | 80 | /**\r |
c3902377 | 81 | \r |
82 | Routine Description:\r | |
83 | \r | |
84 | This function checks to see if a controller can be managed by the ISA Bus \r | |
85 | Driver. This is done by checking to see if the controller supports the \r | |
86 | EFI_PCI_IO_PROTOCOL protocol, and then looking at the PCI Configuration \r | |
87 | Header to see if the device is a PCI to ISA bridge. The class code of \r | |
88 | PCI to ISA bridge: Base class 06h, Sub class 01h Interface 00h \r | |
89 | \r | |
90 | Arguments:\r | |
91 | \r | |
92 | This - The EFI_DRIVER_BINDING_PROTOCOL instance.\r | |
93 | Controller - The handle of the device to check.\r | |
94 | RemainingDevicePath - A pointer to the remaining portion of a device path.\r | |
95 | \r | |
96 | Returns:\r | |
97 | \r | |
98 | EFI_SUCCESS - The device is supported by this driver.\r | |
99 | EFI_UNSUPPORTED - The device is not supported by this driver.\r | |
100 | \r | |
bcd70414 | 101 | **/\r |
c3902377 | 102 | {\r |
103 | EFI_STATUS Status;\r | |
104 | EFI_ISA_ACPI_PROTOCOL *IsaAcpi;\r | |
105 | \r | |
106 | //\r | |
107 | // If RemainingDevicePath is not NULL, it should verify that the first device\r | |
108 | // path node in RemainingDevicePath is an ACPI Device path node\r | |
109 | //\r | |
110 | if (RemainingDevicePath != NULL) {\r | |
111 | if (RemainingDevicePath->Type != ACPI_DEVICE_PATH) {\r | |
112 | return EFI_UNSUPPORTED;\r | |
113 | } else if (RemainingDevicePath->SubType == ACPI_DP) {\r | |
114 | if (DevicePathNodeLength (RemainingDevicePath) != sizeof (ACPI_HID_DEVICE_PATH)) {\r | |
115 | return EFI_UNSUPPORTED;\r | |
116 | }\r | |
117 | } else if (RemainingDevicePath->SubType == ACPI_EXTENDED_DP) {\r | |
118 | if (DevicePathNodeLength (RemainingDevicePath) != sizeof (ACPI_EXTENDED_HID_DEVICE_PATH)) {\r | |
119 | return EFI_UNSUPPORTED;\r | |
120 | }\r | |
121 | } else {\r | |
122 | return EFI_UNSUPPORTED;\r | |
123 | }\r | |
124 | }\r | |
125 | //\r | |
126 | // Test the existence of DEVICE_PATH protocol\r | |
127 | //\r | |
128 | Status = gBS->OpenProtocol (\r | |
129 | Controller,\r | |
130 | &gEfiDevicePathProtocolGuid,\r | |
131 | NULL,\r | |
132 | This->DriverBindingHandle,\r | |
133 | Controller,\r | |
134 | EFI_OPEN_PROTOCOL_TEST_PROTOCOL\r | |
135 | );\r | |
136 | if (EFI_ERROR (Status)) {\r | |
137 | return Status;\r | |
138 | }\r | |
139 | //\r | |
140 | // Get the Isa Acpi protocol\r | |
141 | //\r | |
142 | Status = gBS->OpenProtocol (\r | |
143 | Controller,\r | |
144 | &gEfiIsaAcpiProtocolGuid,\r | |
145 | (VOID **) &IsaAcpi,\r | |
146 | This->DriverBindingHandle,\r | |
147 | Controller,\r | |
148 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
149 | );\r | |
150 | if (Status == EFI_ALREADY_STARTED) {\r | |
151 | return EFI_SUCCESS;\r | |
152 | }\r | |
153 | \r | |
154 | if (EFI_ERROR (Status)) {\r | |
155 | return Status;\r | |
156 | }\r | |
157 | \r | |
158 | gBS->CloseProtocol (\r | |
159 | Controller,\r | |
160 | &gEfiIsaAcpiProtocolGuid,\r | |
161 | This->DriverBindingHandle,\r | |
162 | Controller\r | |
163 | );\r | |
164 | \r | |
165 | return Status;\r | |
166 | }\r | |
167 | \r | |
168 | EFI_STATUS\r | |
169 | EFIAPI\r | |
170 | IsaBusControllerDriverStart (\r | |
171 | IN EFI_DRIVER_BINDING_PROTOCOL * This,\r | |
172 | IN EFI_HANDLE Controller,\r | |
173 | IN EFI_DEVICE_PATH_PROTOCOL * RemainingDevicePath OPTIONAL\r | |
174 | )\r | |
bcd70414 | 175 | /**\r |
c3902377 | 176 | \r |
177 | Routine Description:\r | |
178 | \r | |
179 | This function tells the ISA Bus Driver to start managing a PCI to ISA \r | |
180 | Bridge controller. \r | |
181 | \r | |
182 | Arguments:\r | |
183 | \r | |
184 | This - The EFI_DRIVER_BINDING_PROTOCOL instance.\r | |
185 | Controller - A handle to the device being started. \r | |
186 | RemainingDevicePath - A pointer to the remaining portion of a device path.\r | |
187 | \r | |
188 | Returns:\r | |
189 | \r | |
190 | EFI_SUCCESS - The device was started.\r | |
191 | EFI_UNSUPPORTED - The device is not supported.\r | |
192 | EFI_DEVICE_ERROR - The device could not be started due to a device error.\r | |
193 | EFI_ALREADY_STARTED - The device has already been started.\r | |
194 | EFI_INVALID_PARAMETER - One of the parameters has an invalid value.\r | |
195 | EFI_OUT_OF_RESOURCES - The request could not be completed due to a lack of \r | |
196 | resources.\r | |
197 | \r | |
bcd70414 | 198 | **/\r |
c3902377 | 199 | {\r |
200 | EFI_STATUS Status;\r | |
201 | EFI_PCI_IO_PROTOCOL *PciIo;\r | |
202 | EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath;\r | |
203 | EFI_ISA_ACPI_PROTOCOL *IsaAcpi;\r | |
204 | EFI_ISA_ACPI_DEVICE_ID *IsaDevice;\r | |
205 | EFI_ISA_ACPI_RESOURCE_LIST *ResourceList;\r | |
206 | EFI_GENERIC_MEMORY_TEST_PROTOCOL *GenMemoryTest;\r | |
207 | \r | |
208 | //\r | |
209 | // Local variables declaration for StatusCode reporting\r | |
210 | //\r | |
211 | EFI_RESOURCE_ALLOC_FAILURE_ERROR_DATA AllocFailExtendedData;\r | |
212 | EFI_DEVICE_PATH_PROTOCOL *DevicePathData;\r | |
213 | \r | |
c3902377 | 214 | //\r |
215 | // Initialize status code structure\r | |
216 | //\r | |
217 | AllocFailExtendedData.DataHeader.HeaderSize = sizeof (EFI_STATUS_CODE_DATA);\r | |
218 | AllocFailExtendedData.DataHeader.Size = sizeof (EFI_RESOURCE_ALLOC_FAILURE_ERROR_DATA) - sizeof (EFI_STATUS_CODE_DATA);\r | |
219 | CopyMem (\r | |
220 | &AllocFailExtendedData.DataHeader.Type,\r | |
221 | &gEfiStatusCodeSpecificDataGuid,\r | |
222 | sizeof (EFI_GUID)\r | |
223 | );\r | |
224 | \r | |
225 | //\r | |
226 | // Open Device Path Protocol\r | |
227 | //\r | |
228 | Status = gBS->OpenProtocol (\r | |
229 | Controller,\r | |
230 | &gEfiDevicePathProtocolGuid,\r | |
231 | (VOID **) &ParentDevicePath,\r | |
232 | This->DriverBindingHandle,\r | |
233 | Controller,\r | |
234 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
235 | );\r | |
236 | if (EFI_ERROR (Status) && Status != EFI_ALREADY_STARTED) {\r | |
237 | return Status;\r | |
238 | }\r | |
239 | //\r | |
240 | // Open Pci IO Protocol\r | |
241 | //\r | |
242 | Status = gBS->OpenProtocol (\r | |
243 | Controller,\r | |
244 | &gEfiPciIoProtocolGuid,\r | |
245 | (VOID **) &PciIo,\r | |
246 | This->DriverBindingHandle,\r | |
247 | Controller,\r | |
248 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
249 | );\r | |
250 | if (EFI_ERROR (Status)) {\r | |
251 | //\r | |
252 | // Close opened protocol\r | |
253 | //\r | |
254 | gBS->CloseProtocol (\r | |
255 | Controller,\r | |
256 | &gEfiDevicePathProtocolGuid,\r | |
257 | This->DriverBindingHandle,\r | |
258 | Controller\r | |
259 | );\r | |
260 | return Status;\r | |
261 | }\r | |
262 | //\r | |
263 | // Open ISA Acpi Protocol\r | |
264 | //\r | |
265 | Status = gBS->OpenProtocol (\r | |
266 | Controller,\r | |
267 | &gEfiIsaAcpiProtocolGuid,\r | |
268 | (VOID **) &IsaAcpi,\r | |
269 | This->DriverBindingHandle,\r | |
270 | Controller,\r | |
271 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
272 | );\r | |
273 | if (EFI_ERROR (Status) && Status != EFI_ALREADY_STARTED) {\r | |
274 | //\r | |
275 | // Close opened protocol\r | |
276 | //\r | |
277 | gBS->CloseProtocol (\r | |
278 | Controller,\r | |
279 | &gEfiDevicePathProtocolGuid,\r | |
280 | This->DriverBindingHandle,\r | |
281 | Controller\r | |
282 | );\r | |
283 | gBS->CloseProtocol (\r | |
284 | Controller,\r | |
285 | &gEfiPciIoProtocolGuid,\r | |
286 | This->DriverBindingHandle,\r | |
287 | Controller\r | |
288 | );\r | |
289 | return Status;\r | |
290 | }\r | |
291 | //\r | |
292 | // The IsaBus driver will use memory below 16M, which is not tested yet,\r | |
293 | // so call CompatibleRangeTest to test them. Since memory below 1M should\r | |
294 | // be reserved to CSM, and 15M~16M might be reserved for Isa hole, test 1M\r | |
295 | // ~15M here\r | |
296 | //\r | |
297 | Status = gBS->LocateProtocol (\r | |
298 | &gEfiGenericMemTestProtocolGuid,\r | |
299 | NULL,\r | |
300 | (VOID **) &GenMemoryTest\r | |
301 | );\r | |
302 | \r | |
303 | if (!EFI_ERROR (Status)) {\r | |
304 | Status = GenMemoryTest->CompatibleRangeTest (\r | |
305 | GenMemoryTest,\r | |
306 | 0x100000,\r | |
307 | 0xE00000\r | |
308 | );\r | |
309 | }\r | |
310 | //\r | |
311 | // Report Status Code here since we will initialize the host controller\r | |
312 | //\r | |
313 | REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r | |
314 | EFI_PROGRESS_CODE,\r | |
315 | (EFI_IO_BUS_LPC | EFI_IOB_PC_INIT),\r | |
316 | ParentDevicePath\r | |
317 | );\r | |
318 | \r | |
319 | //\r | |
320 | // first init ISA interface\r | |
321 | //\r | |
322 | IsaAcpi->InterfaceInit (IsaAcpi);\r | |
323 | \r | |
324 | //\r | |
325 | // Report Status Code here since we will enable the host controller\r | |
326 | //\r | |
327 | REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r | |
328 | EFI_PROGRESS_CODE,\r | |
329 | (EFI_IO_BUS_LPC | EFI_IOB_PC_ENABLE),\r | |
330 | ParentDevicePath\r | |
331 | );\r | |
332 | \r | |
333 | //\r | |
334 | // Create each ISA device handle in this ISA bus\r | |
335 | //\r | |
336 | IsaDevice = NULL;\r | |
337 | do {\r | |
338 | Status = IsaAcpi->DeviceEnumerate (IsaAcpi, &IsaDevice);\r | |
339 | if (EFI_ERROR (Status)) {\r | |
340 | break;\r | |
341 | }\r | |
342 | //\r | |
343 | // Get current resource of this ISA device\r | |
344 | //\r | |
345 | ResourceList = NULL;\r | |
346 | Status = IsaAcpi->GetCurResource (IsaAcpi, IsaDevice, &ResourceList);\r | |
347 | if (EFI_ERROR (Status)) {\r | |
348 | continue;\r | |
349 | }\r | |
350 | \r | |
351 | //\r | |
352 | // Create handle for this ISA device\r | |
353 | //\r | |
354 | Status = IsaCreateDevice (\r | |
355 | This,\r | |
356 | Controller,\r | |
357 | PciIo,\r | |
358 | ParentDevicePath,\r | |
359 | ResourceList,\r | |
360 | &DevicePathData\r | |
361 | //&AllocFailExtendedData.DevicePath\r | |
362 | );\r | |
363 | \r | |
364 | if (EFI_ERROR (Status)) {\r | |
365 | continue;\r | |
366 | }\r | |
367 | //\r | |
368 | // Initialize ISA device\r | |
369 | //\r | |
370 | IsaAcpi->InitDevice (IsaAcpi, IsaDevice);\r | |
371 | \r | |
372 | //\r | |
373 | // Set resources for this ISA device\r | |
374 | //\r | |
375 | Status = IsaAcpi->SetResource (IsaAcpi, IsaDevice, ResourceList);\r | |
376 | \r | |
377 | //\r | |
378 | // Report Status Code here when failed to resource conflicts\r | |
379 | //\r | |
380 | if (EFI_ERROR (Status) && (Status != EFI_UNSUPPORTED)) {\r | |
381 | //\r | |
382 | // It's hard to tell which resource conflicts\r | |
383 | //\r | |
384 | AllocFailExtendedData.Bar = 0;\r | |
385 | AllocFailExtendedData.ReqRes = NULL;\r | |
386 | AllocFailExtendedData.AllocRes = NULL;\r | |
387 | REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r | |
388 | EFI_ERROR_CODE,\r | |
389 | (EFI_IO_BUS_LPC | EFI_IOB_EC_RESOURCE_CONFLICT),\r | |
390 | DevicePathData\r | |
391 | );\r | |
392 | \r | |
393 | }\r | |
394 | //\r | |
395 | // Set power for this ISA device\r | |
396 | //\r | |
397 | IsaAcpi->SetPower (IsaAcpi, IsaDevice, TRUE);\r | |
398 | \r | |
399 | //\r | |
400 | // Enable this ISA device\r | |
401 | //\r | |
402 | IsaAcpi->EnableDevice (IsaAcpi, IsaDevice, TRUE);\r | |
403 | \r | |
404 | } while (TRUE);\r | |
405 | \r | |
c3902377 | 406 | return EFI_SUCCESS;\r |
407 | }\r | |
408 | \r | |
409 | EFI_STATUS\r | |
410 | EFIAPI\r | |
411 | IsaBusControllerDriverStop (\r | |
412 | IN EFI_DRIVER_BINDING_PROTOCOL * This,\r | |
413 | IN EFI_HANDLE Controller,\r | |
414 | IN UINTN NumberOfChildren,\r | |
415 | IN EFI_HANDLE * ChildHandleBuffer OPTIONAL\r | |
416 | )\r | |
bcd70414 | 417 | /**\r |
c3902377 | 418 | \r |
419 | Routine Description:\r | |
420 | \r | |
421 | This function tells the ISA Bus Driver to stop managing a PCI to ISA \r | |
422 | Bridge controller. \r | |
423 | \r | |
424 | Arguments:\r | |
425 | \r | |
426 | This - The EFI_DRIVER_BINDING_PROTOCOL instance.\r | |
427 | Controller - A handle to the device being stopped.\r | |
428 | NumberOfChindren - The number of child device handles in ChildHandleBuffer.\r | |
429 | ChildHandleBuffer - An array of child handles to be freed.\r | |
430 | \r | |
431 | \r | |
432 | Returns:\r | |
433 | \r | |
434 | EFI_SUCCESS - The device was stopped.\r | |
435 | EFI_DEVICE_ERROR - The device could not be stopped due to a device error.\r | |
436 | EFI_NOT_STARTED - The device has not been started.\r | |
437 | EFI_INVALID_PARAMETER - One of the parameters has an invalid value.\r | |
438 | EFI_OUT_OF_RESOURCES - The request could not be completed due to a lack of \r | |
439 | resources.\r | |
440 | \r | |
bcd70414 | 441 | **/\r |
c3902377 | 442 | {\r |
443 | EFI_STATUS Status;\r | |
444 | UINTN Index;\r | |
445 | BOOLEAN AllChildrenStopped;\r | |
446 | ISA_IO_DEVICE *IsaIoDevice;\r | |
447 | EFI_ISA_IO_PROTOCOL *IsaIo;\r | |
448 | \r | |
449 | if (NumberOfChildren == 0) {\r | |
450 | //\r | |
451 | // Close the bus driver\r | |
452 | //\r | |
453 | Status = gBS->CloseProtocol (\r | |
454 | Controller,\r | |
455 | &gEfiPciIoProtocolGuid,\r | |
456 | This->DriverBindingHandle,\r | |
457 | Controller\r | |
458 | );\r | |
459 | if (EFI_ERROR (Status)) {\r | |
460 | return Status;\r | |
461 | }\r | |
462 | \r | |
463 | Status = gBS->CloseProtocol (\r | |
464 | Controller,\r | |
465 | &gEfiDevicePathProtocolGuid,\r | |
466 | This->DriverBindingHandle,\r | |
467 | Controller\r | |
468 | );\r | |
469 | if (EFI_ERROR (Status)) {\r | |
470 | return Status;\r | |
471 | }\r | |
472 | \r | |
473 | Status = gBS->CloseProtocol (\r | |
474 | Controller,\r | |
475 | &gEfiIsaAcpiProtocolGuid,\r | |
476 | This->DriverBindingHandle,\r | |
477 | Controller\r | |
478 | );\r | |
479 | if (EFI_ERROR (Status)) {\r | |
480 | return Status;\r | |
481 | }\r | |
482 | \r | |
483 | return EFI_SUCCESS;\r | |
484 | }\r | |
485 | //\r | |
486 | // Complete all outstanding transactions to Controller.\r | |
487 | // Don't allow any new transaction to Controller to be started.\r | |
488 | //\r | |
489 | //\r | |
490 | // Stop all the children\r | |
491 | // Find all the ISA devices that were discovered on this PCI to ISA Bridge\r | |
492 | // with the Start() function.\r | |
493 | //\r | |
494 | AllChildrenStopped = TRUE;\r | |
495 | \r | |
496 | for (Index = 0; Index < NumberOfChildren; Index++) {\r | |
497 | \r | |
498 | Status = gBS->OpenProtocol (\r | |
499 | ChildHandleBuffer[Index],\r | |
500 | &gEfiIsaIoProtocolGuid,\r | |
501 | (VOID **) &IsaIo,\r | |
502 | This->DriverBindingHandle,\r | |
503 | Controller,\r | |
504 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
505 | );\r | |
506 | if (!EFI_ERROR (Status)) {\r | |
507 | \r | |
508 | IsaIoDevice = ISA_IO_DEVICE_FROM_ISA_IO_THIS (IsaIo);\r | |
509 | \r | |
510 | Status = gBS->UninstallMultipleProtocolInterfaces (\r | |
511 | ChildHandleBuffer[Index],\r | |
512 | &gEfiDevicePathProtocolGuid,\r | |
513 | IsaIoDevice->DevicePath,\r | |
514 | &gEfiIsaIoProtocolGuid,\r | |
515 | &IsaIoDevice->IsaIo,\r | |
516 | NULL\r | |
517 | );\r | |
518 | \r | |
519 | if (!EFI_ERROR (Status)) {\r | |
520 | //\r | |
521 | // Close the child handle\r | |
522 | //\r | |
523 | Status = gBS->CloseProtocol (\r | |
524 | Controller,\r | |
525 | &gEfiPciIoProtocolGuid,\r | |
526 | This->DriverBindingHandle,\r | |
527 | ChildHandleBuffer[Index]\r | |
528 | );\r | |
529 | \r | |
530 | gBS->FreePool (IsaIoDevice->DevicePath);\r | |
531 | gBS->FreePool (IsaIoDevice);\r | |
532 | }\r | |
533 | }\r | |
534 | \r | |
535 | if (EFI_ERROR (Status)) {\r | |
536 | AllChildrenStopped = FALSE;\r | |
537 | }\r | |
538 | }\r | |
539 | \r | |
540 | if (!AllChildrenStopped) {\r | |
541 | return EFI_DEVICE_ERROR;\r | |
542 | }\r | |
543 | \r | |
544 | return EFI_SUCCESS;\r | |
545 | }\r | |
546 | //\r | |
547 | // Internal Function\r | |
548 | //\r | |
549 | EFI_STATUS\r | |
550 | IsaCreateDevice (\r | |
551 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
552 | IN EFI_HANDLE Controller,\r | |
553 | IN EFI_PCI_IO_PROTOCOL *PciIo,\r | |
554 | IN EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath,\r | |
555 | IN EFI_ISA_ACPI_RESOURCE_LIST *IsaDeviceResourceList,\r | |
556 | OUT EFI_DEVICE_PATH_PROTOCOL **ChildDevicePath\r | |
557 | )\r | |
bcd70414 | 558 | /**\r |
c3902377 | 559 | \r |
560 | Routine Description:\r | |
561 | \r | |
562 | Create ISA device found by IsaPnpProtocol \r | |
563 | \r | |
564 | Arguments:\r | |
565 | \r | |
566 | This - The EFI_DRIVER_BINDING_PROTOCOL instance.\r | |
567 | Controller - The handle of ISA bus controller(PCI to ISA bridge)\r | |
568 | PciIo - The Pointer to the PCI protocol \r | |
569 | ParentDevicePath - Device path of the ISA bus controller\r | |
570 | IsaDeviceResourceList - The resource list of the ISA device\r | |
571 | ChildDevicePath - The pointer to the child device.\r | |
572 | \r | |
573 | Returns:\r | |
574 | \r | |
575 | EFI_SUCCESS - Create the child device.\r | |
576 | EFI_OUT_OF_RESOURCES - The request could not be completed due to a lack of \r | |
577 | resources.\r | |
578 | EFI_DEVICE_ERROR - Can not create child device.\r | |
579 | \r | |
bcd70414 | 580 | **/\r |
c3902377 | 581 | {\r |
582 | EFI_STATUS Status;\r | |
583 | ISA_IO_DEVICE *IsaIoDevice;\r | |
584 | EFI_DEV_PATH Node;\r | |
585 | \r | |
586 | //\r | |
587 | // Initialize the PCI_IO_DEVICE structure\r | |
588 | //\r | |
589 | IsaIoDevice = AllocateZeroPool (sizeof (ISA_IO_DEVICE));\r | |
590 | if (IsaIoDevice == NULL) {\r | |
591 | return EFI_OUT_OF_RESOURCES;\r | |
592 | }\r | |
593 | \r | |
594 | IsaIoDevice->Signature = ISA_IO_DEVICE_SIGNATURE;\r | |
595 | IsaIoDevice->Handle = NULL;\r | |
596 | IsaIoDevice->PciIo = PciIo;\r | |
597 | \r | |
598 | //\r | |
599 | // Initialize the ISA I/O instance structure\r | |
600 | //\r | |
601 | Status = InitializeIsaIoInstance (IsaIoDevice, IsaDeviceResourceList);\r | |
602 | if (EFI_ERROR (Status)) {\r | |
603 | gBS->FreePool (IsaIoDevice);\r | |
604 | return Status;\r | |
605 | }\r | |
606 | //\r | |
607 | // Build the child device path\r | |
608 | //\r | |
609 | Node.DevPath.Type = ACPI_DEVICE_PATH;\r | |
610 | Node.DevPath.SubType = ACPI_DP;\r | |
611 | SetDevicePathNodeLength (&Node.DevPath, sizeof (ACPI_HID_DEVICE_PATH));\r | |
612 | Node.Acpi.HID = IsaDeviceResourceList->Device.HID;\r | |
613 | Node.Acpi.UID = IsaDeviceResourceList->Device.UID;\r | |
614 | \r | |
615 | IsaIoDevice->DevicePath = AppendDevicePathNode (\r | |
616 | ParentDevicePath,\r | |
617 | &Node.DevPath\r | |
618 | );\r | |
619 | \r | |
620 | if (IsaIoDevice->DevicePath == NULL) {\r | |
621 | Status = EFI_DEVICE_ERROR;\r | |
622 | goto Done;\r | |
623 | }\r | |
624 | \r | |
625 | *ChildDevicePath = IsaIoDevice->DevicePath;\r | |
626 | \r | |
627 | //\r | |
628 | // Create a child handle and attach the DevicePath,\r | |
629 | // PCI I/O, and Controller State\r | |
630 | //\r | |
631 | Status = gBS->InstallMultipleProtocolInterfaces (\r | |
632 | &IsaIoDevice->Handle,\r | |
633 | &gEfiDevicePathProtocolGuid,\r | |
634 | IsaIoDevice->DevicePath,\r | |
635 | &gEfiIsaIoProtocolGuid,\r | |
636 | &IsaIoDevice->IsaIo,\r | |
637 | NULL\r | |
638 | );\r | |
639 | if (EFI_ERROR (Status)) {\r | |
640 | goto Done;\r | |
641 | }\r | |
642 | \r | |
643 | Status = gBS->OpenProtocol (\r | |
644 | Controller,\r | |
645 | &gEfiPciIoProtocolGuid,\r | |
646 | (VOID **) &PciIo,\r | |
647 | This->DriverBindingHandle,\r | |
648 | IsaIoDevice->Handle,\r | |
649 | EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER\r | |
650 | );\r | |
651 | if (EFI_ERROR (Status)) {\r | |
652 | gBS->UninstallMultipleProtocolInterfaces (\r | |
653 | IsaIoDevice->Handle,\r | |
654 | &gEfiDevicePathProtocolGuid,\r | |
655 | IsaIoDevice->DevicePath,\r | |
656 | &gEfiIsaIoProtocolGuid,\r | |
657 | &IsaIoDevice->IsaIo,\r | |
658 | NULL\r | |
659 | );\r | |
660 | }\r | |
661 | \r | |
662 | Done:\r | |
663 | \r | |
664 | if (EFI_ERROR (Status)) {\r | |
665 | if (IsaIoDevice->DevicePath != NULL) {\r | |
666 | gBS->FreePool (IsaIoDevice->DevicePath);\r | |
667 | }\r | |
668 | \r | |
669 | gBS->FreePool (IsaIoDevice);\r | |
670 | }\r | |
671 | \r | |
672 | return Status;\r | |
673 | }\r |