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1 | /** @file\r | |
2 | SCSI Bus driver that layers on every SCSI Pass Thru and\r | |
3 | Extended SCSI Pass Thru protocol in the system.\r | |
4 | \r | |
5 | Copyright (c) 2006 - 2008, Intel Corporation. <BR>\r | |
6 | All rights reserved. This program and the accompanying materials\r | |
7 | are licensed and made available under the terms and conditions of the BSD License\r | |
8 | which accompanies this distribution. The full text of the license may be found at\r | |
9 | http://opensource.org/licenses/bsd-license.php\r | |
10 | \r | |
11 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
12 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
13 | \r | |
14 | **/\r | |
15 | \r | |
16 | \r | |
17 | #include "ScsiBus.h"\r | |
18 | \r | |
19 | \r | |
20 | EFI_DRIVER_BINDING_PROTOCOL gSCSIBusDriverBinding = {\r | |
21 | SCSIBusDriverBindingSupported,\r | |
22 | SCSIBusDriverBindingStart,\r | |
23 | SCSIBusDriverBindingStop,\r | |
24 | 0xa,\r | |
25 | NULL,\r | |
26 | NULL\r | |
27 | };\r | |
28 | \r | |
29 | \r | |
30 | //\r | |
31 | // The ScsiBusProtocol is just used to locate ScsiBusDev\r | |
32 | // structure in the SCSIBusDriverBindingStop(). Then we can\r | |
33 | // Close all opened protocols and release this structure.\r | |
34 | //\r | |
35 | EFI_GUID mScsiBusProtocolGuid = EFI_SCSI_BUS_PROTOCOL_GUID;\r | |
36 | \r | |
37 | VOID *mWorkingBuffer;\r | |
38 | \r | |
39 | /**\r | |
40 | Convert EFI_SCSI_IO_SCSI_REQUEST_PACKET packet to EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET packet.\r | |
41 | \r | |
42 | @param Packet The pointer of EFI_SCSI_IO_SCSI_REQUEST_PACKET\r | |
43 | @param CommandPacket The pointer of EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET\r | |
44 | \r | |
45 | **/\r | |
46 | EFI_STATUS\r | |
47 | EFIAPI\r | |
48 | ScsiioToPassThruPacket (\r | |
49 | IN EFI_SCSI_IO_SCSI_REQUEST_PACKET *Packet,\r | |
50 | OUT EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *CommandPacket\r | |
51 | );\r | |
52 | \r | |
53 | /**\r | |
54 | Convert EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET packet to EFI_SCSI_IO_SCSI_REQUEST_PACKET packet.\r | |
55 | \r | |
56 | @param ScsiPacket The pointer of EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET\r | |
57 | @param Packet The pointer of EFI_SCSI_IO_SCSI_REQUEST_PACKET\r | |
58 | \r | |
59 | **/\r | |
60 | EFI_STATUS\r | |
61 | EFIAPI\r | |
62 | PassThruToScsiioPacket (\r | |
63 | IN EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *ScsiPacket,\r | |
64 | OUT EFI_SCSI_IO_SCSI_REQUEST_PACKET *Packet\r | |
65 | );\r | |
66 | \r | |
67 | /**\r | |
68 | Notify Function in which convert EFI1.0 PassThru Packet back to UEF2.0\r | |
69 | SCSI IO Packet.\r | |
70 | \r | |
71 | @param Event The instance of EFI_EVENT.\r | |
72 | @param Context The parameter passed in.\r | |
73 | \r | |
74 | **/\r | |
75 | VOID\r | |
76 | EFIAPI\r | |
77 | NotifyFunction (\r | |
78 | IN EFI_EVENT Event,\r | |
79 | IN VOID *Context\r | |
80 | );\r | |
81 | \r | |
82 | /**\r | |
83 | The user Entry Point for module ScsiBus. The user code starts with this function.\r | |
84 | \r | |
85 | @param ImageHandle The firmware allocated handle for the EFI image.\r | |
86 | @param SystemTable A pointer to the EFI System Table.\r | |
87 | \r | |
88 | @retval EFI_SUCCESS The entry point is executed successfully.\r | |
89 | @retval other Some error occurs when executing this entry point.\r | |
90 | \r | |
91 | **/\r | |
92 | EFI_STATUS\r | |
93 | EFIAPI\r | |
94 | InitializeScsiBus(\r | |
95 | IN EFI_HANDLE ImageHandle,\r | |
96 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
97 | )\r | |
98 | {\r | |
99 | EFI_STATUS Status;\r | |
100 | \r | |
101 | //\r | |
102 | // Install driver model protocol(s).\r | |
103 | //\r | |
104 | Status = EfiLibInstallDriverBindingComponentName2 (\r | |
105 | ImageHandle,\r | |
106 | SystemTable,\r | |
107 | &gSCSIBusDriverBinding,\r | |
108 | ImageHandle,\r | |
109 | &gScsiBusComponentName,\r | |
110 | &gScsiBusComponentName2\r | |
111 | );\r | |
112 | ASSERT_EFI_ERROR (Status);\r | |
113 | \r | |
114 | return Status;\r | |
115 | }\r | |
116 | \r | |
117 | \r | |
118 | /**\r | |
119 | Test to see if this driver supports ControllerHandle.\r | |
120 | \r | |
121 | This service is called by the EFI boot service ConnectController(). In order\r | |
122 | to make drivers as small as possible, there are a few calling restrictions for\r | |
123 | this service. ConnectController() must follow these calling restrictions. If\r | |
124 | any other agent wishes to call Supported() it must also follow these calling\r | |
125 | restrictions.\r | |
126 | \r | |
127 | @param This Protocol instance pointer.\r | |
128 | @param ControllerHandle Handle of device to test\r | |
129 | @param RemainingDevicePath Optional parameter use to pick a specific child\r | |
130 | device to start.\r | |
131 | \r | |
132 | @retval EFI_SUCCESS This driver supports this device\r | |
133 | @retval EFI_ALREADY_STARTED This driver is already running on this device\r | |
134 | @retval other This driver does not support this device\r | |
135 | \r | |
136 | **/\r | |
137 | EFI_STATUS\r | |
138 | EFIAPI\r | |
139 | SCSIBusDriverBindingSupported (\r | |
140 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
141 | IN EFI_HANDLE Controller,\r | |
142 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r | |
143 | )\r | |
144 | {\r | |
145 | EFI_STATUS Status;\r | |
146 | EFI_SCSI_PASS_THRU_PROTOCOL *PassThru;\r | |
147 | EFI_EXT_SCSI_PASS_THRU_PROTOCOL *ExtPassThru;\r | |
148 | //\r | |
149 | // Check for the existence of Extended SCSI Pass Thru Protocol and SCSI Pass Thru Protocol\r | |
150 | //\r | |
151 | Status = gBS->OpenProtocol (\r | |
152 | Controller,\r | |
153 | &gEfiExtScsiPassThruProtocolGuid,\r | |
154 | (VOID **)&ExtPassThru,\r | |
155 | This->DriverBindingHandle,\r | |
156 | Controller,\r | |
157 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
158 | );\r | |
159 | \r | |
160 | if (Status == EFI_ALREADY_STARTED) {\r | |
161 | return EFI_SUCCESS;\r | |
162 | }\r | |
163 | \r | |
164 | if (EFI_ERROR (Status)) {\r | |
165 | Status = gBS->OpenProtocol (\r | |
166 | Controller,\r | |
167 | &gEfiScsiPassThruProtocolGuid,\r | |
168 | (VOID **)&PassThru,\r | |
169 | This->DriverBindingHandle,\r | |
170 | Controller,\r | |
171 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
172 | );\r | |
173 | \r | |
174 | if (Status == EFI_ALREADY_STARTED) {\r | |
175 | return EFI_SUCCESS;\r | |
176 | }\r | |
177 | \r | |
178 | if (EFI_ERROR (Status)) {\r | |
179 | return Status;\r | |
180 | }\r | |
181 | \r | |
182 | gBS->CloseProtocol (\r | |
183 | Controller,\r | |
184 | &gEfiScsiPassThruProtocolGuid,\r | |
185 | This->DriverBindingHandle,\r | |
186 | Controller\r | |
187 | );\r | |
188 | return EFI_SUCCESS;\r | |
189 | }\r | |
190 | \r | |
191 | gBS->CloseProtocol (\r | |
192 | Controller,\r | |
193 | &gEfiExtScsiPassThruProtocolGuid,\r | |
194 | This->DriverBindingHandle,\r | |
195 | Controller\r | |
196 | );\r | |
197 | \r | |
198 | return EFI_SUCCESS;\r | |
199 | }\r | |
200 | \r | |
201 | \r | |
202 | /**\r | |
203 | Start this driver on ControllerHandle.\r | |
204 | \r | |
205 | This service is called by the EFI boot service ConnectController(). In order\r | |
206 | to make drivers as small as possible, there are a few calling restrictions for\r | |
207 | this service. ConnectController() must follow these calling restrictions. If\r | |
208 | any other agent wishes to call Start() it must also follow these calling\r | |
209 | restrictions.\r | |
210 | \r | |
211 | @param This Protocol instance pointer.\r | |
212 | @param ControllerHandle Handle of device to bind driver to\r | |
213 | @param RemainingDevicePath Optional parameter use to pick a specific child\r | |
214 | device to start.\r | |
215 | \r | |
216 | @retval EFI_SUCCESS This driver is added to ControllerHandle\r | |
217 | @retval EFI_ALREADY_STARTED This driver is already running on ControllerHandle\r | |
218 | @retval other This driver does not support this device\r | |
219 | \r | |
220 | **/\r | |
221 | EFI_STATUS\r | |
222 | EFIAPI\r | |
223 | SCSIBusDriverBindingStart (\r | |
224 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
225 | IN EFI_HANDLE Controller,\r | |
226 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r | |
227 | )\r | |
228 | {\r | |
229 | UINT64 Lun;\r | |
230 | UINT8 *TargetId;\r | |
231 | BOOLEAN ScanOtherPuns;\r | |
232 | BOOLEAN FromFirstTarget;\r | |
233 | BOOLEAN ExtScsiSupport;\r | |
234 | EFI_STATUS Status;\r | |
235 | EFI_STATUS DevicePathStatus;\r | |
236 | EFI_STATUS PassThruStatus;\r | |
237 | SCSI_BUS_DEVICE *ScsiBusDev;\r | |
238 | SCSI_TARGET_ID *ScsiTargetId;\r | |
239 | EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath;\r | |
240 | EFI_SCSI_PASS_THRU_PROTOCOL *ScsiInterface;\r | |
241 | EFI_EXT_SCSI_PASS_THRU_PROTOCOL *ExtScsiInterface;\r | |
242 | EFI_SCSI_BUS_PROTOCOL *BusIdentify;\r | |
243 | \r | |
244 | TargetId = NULL;\r | |
245 | ScsiTargetId = NULL;\r | |
246 | ScanOtherPuns = TRUE;\r | |
247 | FromFirstTarget = FALSE;\r | |
248 | ExtScsiSupport = FALSE;\r | |
249 | PassThruStatus = EFI_SUCCESS;\r | |
250 | \r | |
251 | ScsiTargetId = AllocateZeroPool(sizeof(SCSI_TARGET_ID));\r | |
252 | if (ScsiTargetId == NULL) {\r | |
253 | return EFI_OUT_OF_RESOURCES;\r | |
254 | }\r | |
255 | \r | |
256 | TargetId = &ScsiTargetId->ScsiId.ExtScsi[0];\r | |
257 | \r | |
258 | DevicePathStatus = gBS->OpenProtocol (\r | |
259 | Controller,\r | |
260 | &gEfiDevicePathProtocolGuid,\r | |
261 | (VOID **) &ParentDevicePath,\r | |
262 | This->DriverBindingHandle,\r | |
263 | Controller,\r | |
264 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
265 | );\r | |
266 | if (EFI_ERROR (DevicePathStatus) && (DevicePathStatus != EFI_ALREADY_STARTED)) {\r | |
267 | return DevicePathStatus;\r | |
268 | }\r | |
269 | \r | |
270 | //\r | |
271 | // To keep backward compatibility, UEFI ExtPassThru Protocol is supported as well as \r | |
272 | // EFI PassThru Protocol. From priority perspective, ExtPassThru Protocol is firstly\r | |
273 | // tried to open on host controller handle. If fails, then PassThru Protocol is tried instead.\r | |
274 | //\r | |
275 | Status = gBS->OpenProtocol (\r | |
276 | Controller,\r | |
277 | &gEfiExtScsiPassThruProtocolGuid,\r | |
278 | (VOID **) &ExtScsiInterface,\r | |
279 | This->DriverBindingHandle,\r | |
280 | Controller,\r | |
281 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
282 | );\r | |
283 | //\r | |
284 | // Fail to open UEFI ExtendPassThru Protocol, then try to open EFI PassThru Protocol instead.\r | |
285 | //\r | |
286 | if (EFI_ERROR(Status) && (Status != EFI_ALREADY_STARTED)) {\r | |
287 | Status = gBS->OpenProtocol (\r | |
288 | Controller,\r | |
289 | &gEfiScsiPassThruProtocolGuid,\r | |
290 | (VOID **) &ScsiInterface,\r | |
291 | This->DriverBindingHandle,\r | |
292 | Controller,\r | |
293 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
294 | );\r | |
295 | //\r | |
296 | // Fail to open EFI PassThru Protocol, Close the DevicePathProtocol if it is opened by this time.\r | |
297 | //\r | |
298 | if (EFI_ERROR (Status) && (Status != EFI_ALREADY_STARTED)) {\r | |
299 | if (!EFI_ERROR(DevicePathStatus)) {\r | |
300 | gBS->CloseProtocol (\r | |
301 | Controller,\r | |
302 | &gEfiDevicePathProtocolGuid,\r | |
303 | This->DriverBindingHandle,\r | |
304 | Controller\r | |
305 | );\r | |
306 | } \r | |
307 | return Status;\r | |
308 | } \r | |
309 | } else {\r | |
310 | //\r | |
311 | // Succeed to open ExtPassThru Protocol, and meanwhile open PassThru Protocol \r | |
312 | // with BY_DRIVER if it is also present on the handle. The intent is to prevent \r | |
313 | // another SCSI Bus Driver to work on the same host handle.\r | |
314 | //\r | |
315 | ExtScsiSupport = TRUE;\r | |
316 | PassThruStatus = gBS->OpenProtocol (\r | |
317 | Controller,\r | |
318 | &gEfiScsiPassThruProtocolGuid,\r | |
319 | (VOID **) &ScsiInterface,\r | |
320 | This->DriverBindingHandle,\r | |
321 | Controller,\r | |
322 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
323 | );\r | |
324 | }\r | |
325 | \r | |
326 | if (Status != EFI_ALREADY_STARTED) {\r | |
327 | //\r | |
328 | // Go through here means either ExtPassThru or PassThru Protocol is successfully opened\r | |
329 | // on this handle for this time. Then construct Host controller private data.\r | |
330 | //\r | |
331 | ScsiBusDev = NULL;\r | |
332 | ScsiBusDev = AllocateZeroPool(sizeof(SCSI_BUS_DEVICE));\r | |
333 | if (ScsiBusDev == NULL) {\r | |
334 | Status = EFI_OUT_OF_RESOURCES;\r | |
335 | goto ErrorExit;\r | |
336 | }\r | |
337 | ScsiBusDev->Signature = SCSI_BUS_DEVICE_SIGNATURE;\r | |
338 | ScsiBusDev->ExtScsiSupport = ExtScsiSupport;\r | |
339 | ScsiBusDev->DevicePath = ParentDevicePath;\r | |
340 | if (ScsiBusDev->ExtScsiSupport) {\r | |
341 | ScsiBusDev->ExtScsiInterface = ExtScsiInterface;\r | |
342 | } else {\r | |
343 | ScsiBusDev->ScsiInterface = ScsiInterface; \r | |
344 | }\r | |
345 | \r | |
346 | //\r | |
347 | // Install EFI_SCSI_BUS_PROTOCOL to the controller handle, So ScsiBusDev could be\r | |
348 | // retrieved on this controller handle. With ScsiBusDev, we can know which PassThru\r | |
349 | // Protocol is present on the handle, UEFI ExtPassThru Protocol or EFI PassThru Protocol.\r | |
350 | // \r | |
351 | Status = gBS->InstallProtocolInterface (\r | |
352 | &Controller,\r | |
353 | &mScsiBusProtocolGuid,\r | |
354 | EFI_NATIVE_INTERFACE,\r | |
355 | &ScsiBusDev->BusIdentify\r | |
356 | );\r | |
357 | if (EFI_ERROR (Status)) {\r | |
358 | goto ErrorExit;\r | |
359 | }\r | |
360 | } else {\r | |
361 | //\r | |
362 | // Go through here means Start() is re-invoked again, nothing special is required to do except\r | |
363 | // picking up Host controller private information.\r | |
364 | //\r | |
365 | Status = gBS->OpenProtocol (\r | |
366 | Controller,\r | |
367 | &mScsiBusProtocolGuid,\r | |
368 | (VOID **) &BusIdentify,\r | |
369 | This->DriverBindingHandle,\r | |
370 | Controller,\r | |
371 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
372 | );\r | |
373 | \r | |
374 | if (EFI_ERROR (Status)) {\r | |
375 | return Status;\r | |
376 | }\r | |
377 | ScsiBusDev = SCSI_BUS_CONTROLLER_DEVICE_FROM_THIS (BusIdentify);\r | |
378 | }\r | |
379 | \r | |
380 | if (RemainingDevicePath == NULL) {\r | |
381 | SetMem (ScsiTargetId, TARGET_MAX_BYTES,0xFF);\r | |
382 | Lun = 0;\r | |
383 | FromFirstTarget = TRUE;\r | |
384 | } else {\r | |
385 | if (ScsiBusDev->ExtScsiSupport) {\r | |
386 | ScsiBusDev->ExtScsiInterface->GetTargetLun (ScsiBusDev->ExtScsiInterface, RemainingDevicePath, &TargetId, &Lun); \r | |
387 | } else {\r | |
388 | ScsiBusDev->ScsiInterface->GetTargetLun (ScsiBusDev->ScsiInterface, RemainingDevicePath, &ScsiTargetId->ScsiId.Scsi, &Lun);\r | |
389 | }\r | |
390 | }\r | |
391 | \r | |
392 | while(ScanOtherPuns) {\r | |
393 | if (FromFirstTarget) {\r | |
394 | //\r | |
395 | // Remaining Device Path is NULL, scan all the possible Puns in the\r | |
396 | // SCSI Channel.\r | |
397 | //\r | |
398 | if (ScsiBusDev->ExtScsiSupport) {\r | |
399 | Status = ScsiBusDev->ExtScsiInterface->GetNextTargetLun (ScsiBusDev->ExtScsiInterface, &TargetId, &Lun);\r | |
400 | } else {\r | |
401 | Status = ScsiBusDev->ScsiInterface->GetNextDevice (ScsiBusDev->ScsiInterface, &ScsiTargetId->ScsiId.Scsi, &Lun);\r | |
402 | }\r | |
403 | if (EFI_ERROR (Status)) {\r | |
404 | //\r | |
405 | // no legal Pun and Lun found any more\r | |
406 | //\r | |
407 | break;\r | |
408 | }\r | |
409 | } else {\r | |
410 | ScanOtherPuns = FALSE;\r | |
411 | }\r | |
412 | //\r | |
413 | // Avoid creating handle for the host adapter.\r | |
414 | //\r | |
415 | if (ScsiBusDev->ExtScsiSupport) {\r | |
416 | if ((ScsiTargetId->ScsiId.Scsi) == ScsiBusDev->ExtScsiInterface->Mode->AdapterId) {\r | |
417 | continue;\r | |
418 | }\r | |
419 | } else {\r | |
420 | if ((ScsiTargetId->ScsiId.Scsi) == ScsiBusDev->ScsiInterface->Mode->AdapterId) {\r | |
421 | continue;\r | |
422 | }\r | |
423 | }\r | |
424 | //\r | |
425 | // Scan for the scsi device, if it attaches to the scsi bus,\r | |
426 | // then create handle and install scsi i/o protocol.\r | |
427 | //\r | |
428 | Status = ScsiScanCreateDevice (This, Controller, ScsiTargetId, Lun, ScsiBusDev);\r | |
429 | }\r | |
430 | FreePool (ScsiTargetId);\r | |
431 | return EFI_SUCCESS;\r | |
432 | \r | |
433 | ErrorExit:\r | |
434 | \r | |
435 | if (ScsiBusDev != NULL) {\r | |
436 | FreePool (ScsiBusDev);\r | |
437 | }\r | |
438 | \r | |
439 | if (ExtScsiSupport) {\r | |
440 | gBS->CloseProtocol (\r | |
441 | Controller,\r | |
442 | &gEfiExtScsiPassThruProtocolGuid,\r | |
443 | This->DriverBindingHandle,\r | |
444 | Controller\r | |
445 | );\r | |
446 | if (!EFI_ERROR (PassThruStatus)) {\r | |
447 | gBS->CloseProtocol (\r | |
448 | Controller,\r | |
449 | &gEfiScsiPassThruProtocolGuid,\r | |
450 | This->DriverBindingHandle,\r | |
451 | Controller\r | |
452 | );\r | |
453 | }\r | |
454 | } else {\r | |
455 | gBS->CloseProtocol (\r | |
456 | Controller,\r | |
457 | &gEfiScsiPassThruProtocolGuid,\r | |
458 | This->DriverBindingHandle,\r | |
459 | Controller\r | |
460 | );\r | |
461 | }\r | |
462 | return Status;\r | |
463 | }\r | |
464 | \r | |
465 | /**\r | |
466 | Stop this driver on ControllerHandle.\r | |
467 | \r | |
468 | This service is called by the EFI boot service DisconnectController().\r | |
469 | In order to make drivers as small as possible, there are a few calling\r | |
470 | restrictions for this service. DisconnectController() must follow these\r | |
471 | calling restrictions. If any other agent wishes to call Stop() it must also\r | |
472 | follow these calling restrictions.\r | |
473 | \r | |
474 | @param This Protocol instance pointer.\r | |
475 | @param ControllerHandle Handle of device to stop driver on\r | |
476 | @param NumberOfChildren Number of Handles in ChildHandleBuffer. If number of\r | |
477 | children is zero stop the entire bus driver.\r | |
478 | @param ChildHandleBuffer List of Child Handles to Stop.\r | |
479 | \r | |
480 | @retval EFI_SUCCESS This driver is removed ControllerHandle\r | |
481 | @retval other This driver was not removed from this device\r | |
482 | \r | |
483 | **/\r | |
484 | EFI_STATUS\r | |
485 | EFIAPI\r | |
486 | SCSIBusDriverBindingStop (\r | |
487 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
488 | IN EFI_HANDLE Controller,\r | |
489 | IN UINTN NumberOfChildren,\r | |
490 | IN EFI_HANDLE *ChildHandleBuffer\r | |
491 | )\r | |
492 | {\r | |
493 | EFI_STATUS Status;\r | |
494 | BOOLEAN AllChildrenStopped;\r | |
495 | UINTN Index;\r | |
496 | EFI_SCSI_IO_PROTOCOL *ScsiIo;\r | |
497 | SCSI_IO_DEV *ScsiIoDevice;\r | |
498 | VOID *ScsiPassThru;\r | |
499 | EFI_SCSI_BUS_PROTOCOL *Scsidentifier;\r | |
500 | SCSI_BUS_DEVICE *ScsiBusDev;\r | |
501 | \r | |
502 | if (NumberOfChildren == 0) {\r | |
503 | //\r | |
504 | // Get the SCSI_BUS_DEVICE\r | |
505 | //\r | |
506 | Status = gBS->OpenProtocol (\r | |
507 | Controller,\r | |
508 | &mScsiBusProtocolGuid,\r | |
509 | (VOID **) &Scsidentifier,\r | |
510 | This->DriverBindingHandle,\r | |
511 | Controller,\r | |
512 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
513 | );\r | |
514 | \r | |
515 | if (EFI_ERROR (Status)) {\r | |
516 | return EFI_DEVICE_ERROR;\r | |
517 | }\r | |
518 | \r | |
519 | ScsiBusDev = SCSI_BUS_CONTROLLER_DEVICE_FROM_THIS (Scsidentifier);\r | |
520 | \r | |
521 | //\r | |
522 | // Uninstall SCSI Bus Protocol\r | |
523 | //\r | |
524 | gBS->UninstallProtocolInterface (\r | |
525 | Controller,\r | |
526 | &mScsiBusProtocolGuid,\r | |
527 | &ScsiBusDev->BusIdentify\r | |
528 | );\r | |
529 | \r | |
530 | //\r | |
531 | // Close the bus driver\r | |
532 | //\r | |
533 | if (ScsiBusDev->ExtScsiSupport) {\r | |
534 | gBS->CloseProtocol (\r | |
535 | Controller,\r | |
536 | &gEfiExtScsiPassThruProtocolGuid,\r | |
537 | This->DriverBindingHandle,\r | |
538 | Controller\r | |
539 | );\r | |
540 | } else {\r | |
541 | gBS->CloseProtocol (\r | |
542 | Controller,\r | |
543 | &gEfiScsiPassThruProtocolGuid,\r | |
544 | This->DriverBindingHandle,\r | |
545 | Controller\r | |
546 | );\r | |
547 | }\r | |
548 | \r | |
549 | gBS->CloseProtocol (\r | |
550 | Controller,\r | |
551 | &gEfiDevicePathProtocolGuid,\r | |
552 | This->DriverBindingHandle,\r | |
553 | Controller\r | |
554 | );\r | |
555 | FreePool (ScsiBusDev);\r | |
556 | return EFI_SUCCESS;\r | |
557 | }\r | |
558 | \r | |
559 | AllChildrenStopped = TRUE;\r | |
560 | \r | |
561 | for (Index = 0; Index < NumberOfChildren; Index++) {\r | |
562 | \r | |
563 | Status = gBS->OpenProtocol (\r | |
564 | ChildHandleBuffer[Index],\r | |
565 | &gEfiScsiIoProtocolGuid,\r | |
566 | (VOID **) &ScsiIo,\r | |
567 | This->DriverBindingHandle,\r | |
568 | Controller,\r | |
569 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
570 | );\r | |
571 | if (EFI_ERROR (Status)) {\r | |
572 | AllChildrenStopped = FALSE;\r | |
573 | continue;\r | |
574 | }\r | |
575 | \r | |
576 | ScsiIoDevice = SCSI_IO_DEV_FROM_THIS (ScsiIo);\r | |
577 | //\r | |
578 | // Close the child handle\r | |
579 | //\r | |
580 | if (ScsiIoDevice->ExtScsiSupport) {\r | |
581 | Status = gBS->CloseProtocol (\r | |
582 | Controller,\r | |
583 | &gEfiExtScsiPassThruProtocolGuid,\r | |
584 | This->DriverBindingHandle,\r | |
585 | ChildHandleBuffer[Index]\r | |
586 | );\r | |
587 | \r | |
588 | } else {\r | |
589 | Status = gBS->CloseProtocol (\r | |
590 | Controller,\r | |
591 | &gEfiScsiPassThruProtocolGuid,\r | |
592 | This->DriverBindingHandle,\r | |
593 | ChildHandleBuffer[Index]\r | |
594 | );\r | |
595 | }\r | |
596 | \r | |
597 | Status = gBS->UninstallMultipleProtocolInterfaces (\r | |
598 | ChildHandleBuffer[Index],\r | |
599 | &gEfiDevicePathProtocolGuid,\r | |
600 | ScsiIoDevice->DevicePath,\r | |
601 | &gEfiScsiIoProtocolGuid,\r | |
602 | &ScsiIoDevice->ScsiIo,\r | |
603 | NULL\r | |
604 | );\r | |
605 | if (EFI_ERROR (Status)) {\r | |
606 | AllChildrenStopped = FALSE;\r | |
607 | if (ScsiIoDevice->ExtScsiSupport) {\r | |
608 | gBS->OpenProtocol (\r | |
609 | Controller,\r | |
610 | &gEfiExtScsiPassThruProtocolGuid,\r | |
611 | &ScsiPassThru,\r | |
612 | This->DriverBindingHandle,\r | |
613 | ChildHandleBuffer[Index],\r | |
614 | EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER\r | |
615 | );\r | |
616 | } else {\r | |
617 | gBS->OpenProtocol (\r | |
618 | Controller,\r | |
619 | &gEfiScsiPassThruProtocolGuid,\r | |
620 | &ScsiPassThru,\r | |
621 | This->DriverBindingHandle,\r | |
622 | ChildHandleBuffer[Index],\r | |
623 | EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER\r | |
624 | );\r | |
625 | }\r | |
626 | } else {\r | |
627 | FreePool (ScsiIoDevice);\r | |
628 | }\r | |
629 | }\r | |
630 | \r | |
631 | if (!AllChildrenStopped) {\r | |
632 | return EFI_DEVICE_ERROR;\r | |
633 | }\r | |
634 | \r | |
635 | return EFI_SUCCESS;\r | |
636 | }\r | |
637 | \r | |
638 | \r | |
639 | /**\r | |
640 | Retrieves the device type information of the SCSI Controller.\r | |
641 | \r | |
642 | @param This Protocol instance pointer.\r | |
643 | @param DeviceType A pointer to the device type information retrieved from\r | |
644 | the SCSI Controller. \r | |
645 | \r | |
646 | @retval EFI_SUCCESS Retrieves the device type information successfully.\r | |
647 | @retval EFI_INVALID_PARAMETER The DeviceType is NULL.\r | |
648 | \r | |
649 | **/\r | |
650 | EFI_STATUS\r | |
651 | EFIAPI\r | |
652 | ScsiGetDeviceType (\r | |
653 | IN EFI_SCSI_IO_PROTOCOL *This,\r | |
654 | OUT UINT8 *DeviceType\r | |
655 | )\r | |
656 | {\r | |
657 | SCSI_IO_DEV *ScsiIoDevice;\r | |
658 | \r | |
659 | if (DeviceType == NULL) {\r | |
660 | return EFI_INVALID_PARAMETER;\r | |
661 | }\r | |
662 | \r | |
663 | ScsiIoDevice = SCSI_IO_DEV_FROM_THIS (This);\r | |
664 | *DeviceType = ScsiIoDevice->ScsiDeviceType;\r | |
665 | return EFI_SUCCESS;\r | |
666 | }\r | |
667 | \r | |
668 | \r | |
669 | /**\r | |
670 | Retrieves the device location in the SCSI channel.\r | |
671 | \r | |
672 | @param This Protocol instance pointer.\r | |
673 | @param Target A pointer to the Target ID of a SCSI device\r | |
674 | on the SCSI channel.\r | |
675 | @param Lun A pointer to the LUN of the SCSI device on\r | |
676 | the SCSI channel.\r | |
677 | \r | |
678 | @retval EFI_SUCCESS Retrieves the device location successfully.\r | |
679 | @retval EFI_INVALID_PARAMETER The Target or Lun is NULL.\r | |
680 | \r | |
681 | **/\r | |
682 | EFI_STATUS\r | |
683 | EFIAPI\r | |
684 | ScsiGetDeviceLocation (\r | |
685 | IN EFI_SCSI_IO_PROTOCOL *This,\r | |
686 | IN OUT UINT8 **Target,\r | |
687 | OUT UINT64 *Lun\r | |
688 | )\r | |
689 | {\r | |
690 | SCSI_IO_DEV *ScsiIoDevice;\r | |
691 | \r | |
692 | if (Target == NULL || Lun == NULL) {\r | |
693 | return EFI_INVALID_PARAMETER;\r | |
694 | }\r | |
695 | \r | |
696 | ScsiIoDevice = SCSI_IO_DEV_FROM_THIS (This);\r | |
697 | \r | |
698 | CopyMem (*Target,&ScsiIoDevice->Pun, TARGET_MAX_BYTES);\r | |
699 | \r | |
700 | *Lun = ScsiIoDevice->Lun;\r | |
701 | \r | |
702 | return EFI_SUCCESS;\r | |
703 | }\r | |
704 | \r | |
705 | /**\r | |
706 | Resets the SCSI Bus that the SCSI Controller is attached to.\r | |
707 | \r | |
708 | @param This Protocol instance pointer.\r | |
709 | \r | |
710 | @retval EFI_SUCCESS The SCSI bus is reset successfully.\r | |
711 | @retval EFI_DEVICE_ERROR Errors encountered when resetting the SCSI bus.\r | |
712 | @retval EFI_UNSUPPORTED The bus reset operation is not supported by the\r | |
713 | SCSI Host Controller.\r | |
714 | @retval EFI_TIMEOUT A timeout occurred while attempting to reset \r | |
715 | the SCSI bus.\r | |
716 | **/\r | |
717 | EFI_STATUS\r | |
718 | EFIAPI\r | |
719 | ScsiResetBus (\r | |
720 | IN EFI_SCSI_IO_PROTOCOL *This\r | |
721 | )\r | |
722 | {\r | |
723 | SCSI_IO_DEV *ScsiIoDevice;\r | |
724 | \r | |
725 | ScsiIoDevice = SCSI_IO_DEV_FROM_THIS (This);\r | |
726 | \r | |
727 | if (ScsiIoDevice->ExtScsiSupport){\r | |
728 | return ScsiIoDevice->ExtScsiPassThru->ResetChannel (ScsiIoDevice->ExtScsiPassThru);\r | |
729 | } else {\r | |
730 | return ScsiIoDevice->ScsiPassThru->ResetChannel (ScsiIoDevice->ScsiPassThru);\r | |
731 | }\r | |
732 | }\r | |
733 | \r | |
734 | \r | |
735 | /**\r | |
736 | Resets the SCSI Controller that the device handle specifies.\r | |
737 | \r | |
738 | @param This Protocol instance pointer.\r | |
739 | \r | |
740 | @retval EFI_SUCCESS Reset the SCSI controller successfully.\r | |
741 | @retval EFI_DEVICE_ERROR Errors are encountered when resetting the SCSI Controller.\r | |
742 | @retval EFI_UNSUPPORTED The SCSI bus does not support a device reset operation.\r | |
743 | @retval EFI_TIMEOUT A timeout occurred while attempting to reset the\r | |
744 | SCSI Controller.\r | |
745 | **/\r | |
746 | EFI_STATUS\r | |
747 | EFIAPI\r | |
748 | ScsiResetDevice (\r | |
749 | IN EFI_SCSI_IO_PROTOCOL *This\r | |
750 | )\r | |
751 | {\r | |
752 | SCSI_IO_DEV *ScsiIoDevice;\r | |
753 | UINT8 Target[TARGET_MAX_BYTES];\r | |
754 | \r | |
755 | ScsiIoDevice = SCSI_IO_DEV_FROM_THIS (This);\r | |
756 | CopyMem (Target,&ScsiIoDevice->Pun, TARGET_MAX_BYTES);\r | |
757 | \r | |
758 | \r | |
759 | if (ScsiIoDevice->ExtScsiSupport) {\r | |
760 | return ScsiIoDevice->ExtScsiPassThru->ResetTargetLun (\r | |
761 | ScsiIoDevice->ExtScsiPassThru,\r | |
762 | Target,\r | |
763 | ScsiIoDevice->Lun\r | |
764 | );\r | |
765 | } else {\r | |
766 | return ScsiIoDevice->ScsiPassThru->ResetTarget (\r | |
767 | ScsiIoDevice->ScsiPassThru,\r | |
768 | ScsiIoDevice->Pun.ScsiId.Scsi,\r | |
769 | ScsiIoDevice->Lun\r | |
770 | );\r | |
771 | }\r | |
772 | }\r | |
773 | \r | |
774 | \r | |
775 | /**\r | |
776 | Sends a SCSI Request Packet to the SCSI Controller for execution.\r | |
777 | \r | |
778 | @param This Protocol instance pointer.\r | |
779 | @param CommandPacket The SCSI request packet to send to the SCSI \r | |
780 | Controller specified by the device handle.\r | |
781 | @param Event If the SCSI bus where the SCSI device is attached\r | |
782 | does not support non-blocking I/O, then Event is \r | |
783 | ignored, and blocking I/O is performed. \r | |
784 | If Event is NULL, then blocking I/O is performed.\r | |
785 | If Event is not NULL and non-blocking I/O is \r | |
786 | supported, then non-blocking I/O is performed,\r | |
787 | and Event will be signaled when the SCSI Request\r | |
788 | Packet completes.\r | |
789 | \r | |
790 | @retval EFI_SUCCESS The SCSI Request Packet was sent by the host \r | |
791 | successfully, and TransferLength bytes were \r | |
792 | transferred to/from DataBuffer.See \r | |
793 | HostAdapterStatus, TargetStatus, \r | |
794 | SenseDataLength, and SenseData in that order\r | |
795 | for additional status information.\r | |
796 | @retval EFI_BAD_BUFFER_SIZE The SCSI Request Packet was executed, \r | |
797 | but the entire DataBuffer could not be transferred.\r | |
798 | The actual number of bytes transferred is returned\r | |
799 | in TransferLength. See HostAdapterStatus, \r | |
800 | TargetStatus, SenseDataLength, and SenseData in \r | |
801 | that order for additional status information.\r | |
802 | @retval EFI_NOT_READY The SCSI Request Packet could not be sent because \r | |
803 | there are too many SCSI Command Packets already \r | |
804 | queued.The caller may retry again later.\r | |
805 | @retval EFI_DEVICE_ERROR A device error occurred while attempting to send \r | |
806 | the SCSI Request Packet. See HostAdapterStatus, \r | |
807 | TargetStatus, SenseDataLength, and SenseData in \r | |
808 | that order for additional status information.\r | |
809 | @retval EFI_INVALID_PARAMETER The contents of CommandPacket are invalid. \r | |
810 | The SCSI Request Packet was not sent, so no \r | |
811 | additional status information is available.\r | |
812 | @retval EFI_UNSUPPORTED The command described by the SCSI Request Packet\r | |
813 | is not supported by the SCSI initiator(i.e., SCSI \r | |
814 | Host Controller). The SCSI Request Packet was not\r | |
815 | sent, so no additional status information is \r | |
816 | available.\r | |
817 | @retval EFI_TIMEOUT A timeout occurred while waiting for the SCSI \r | |
818 | Request Packet to execute. See HostAdapterStatus,\r | |
819 | TargetStatus, SenseDataLength, and SenseData in \r | |
820 | that order for additional status information.\r | |
821 | **/\r | |
822 | EFI_STATUS\r | |
823 | EFIAPI\r | |
824 | ScsiExecuteSCSICommand (\r | |
825 | IN EFI_SCSI_IO_PROTOCOL *This,\r | |
826 | IN OUT EFI_SCSI_IO_SCSI_REQUEST_PACKET *Packet,\r | |
827 | IN EFI_EVENT Event OPTIONAL\r | |
828 | )\r | |
829 | {\r | |
830 | SCSI_IO_DEV *ScsiIoDevice;\r | |
831 | EFI_STATUS Status;\r | |
832 | UINT8 Target[TARGET_MAX_BYTES];\r | |
833 | EFI_EVENT PacketEvent;\r | |
834 | EFI_EXT_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *ExtRequestPacket;\r | |
835 | SCSI_EVENT_DATA EventData; \r | |
836 | \r | |
837 | PacketEvent = NULL;\r | |
838 | \r | |
839 | if (Packet == NULL) {\r | |
840 | return EFI_INVALID_PARAMETER;\r | |
841 | }\r | |
842 | \r | |
843 | ScsiIoDevice = SCSI_IO_DEV_FROM_THIS (This);\r | |
844 | CopyMem (Target,&ScsiIoDevice->Pun, TARGET_MAX_BYTES);\r | |
845 | \r | |
846 | if (ScsiIoDevice->ExtScsiSupport) {\r | |
847 | ExtRequestPacket = (EFI_EXT_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *) Packet;\r | |
848 | Status = ScsiIoDevice->ExtScsiPassThru->PassThru (\r | |
849 | ScsiIoDevice->ExtScsiPassThru,\r | |
850 | Target,\r | |
851 | ScsiIoDevice->Lun,\r | |
852 | ExtRequestPacket,\r | |
853 | Event\r | |
854 | );\r | |
855 | } else {\r | |
856 | \r | |
857 | mWorkingBuffer = AllocatePool (sizeof(EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET));\r | |
858 | \r | |
859 | if (mWorkingBuffer == NULL) {\r | |
860 | return EFI_DEVICE_ERROR;\r | |
861 | }\r | |
862 | \r | |
863 | //\r | |
864 | // Convert package into EFI1.0, EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET.\r | |
865 | //\r | |
866 | Status = ScsiioToPassThruPacket(Packet, (EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET*)mWorkingBuffer);\r | |
867 | if (EFI_ERROR(Status)) {\r | |
868 | FreePool(mWorkingBuffer);\r | |
869 | return Status;\r | |
870 | }\r | |
871 | \r | |
872 | if (((ScsiIoDevice->ScsiPassThru->Mode->Attributes & EFI_SCSI_PASS_THRU_ATTRIBUTES_NONBLOCKIO) != 0) && (Event != NULL)) {\r | |
873 | EventData.Data1 = (VOID*)Packet;\r | |
874 | EventData.Data2 = Event;\r | |
875 | //\r | |
876 | // Create Event\r | |
877 | //\r | |
878 | Status = gBS->CreateEvent (\r | |
879 | EVT_NOTIFY_SIGNAL,\r | |
880 | TPL_CALLBACK,\r | |
881 | NotifyFunction,\r | |
882 | &EventData,\r | |
883 | &PacketEvent\r | |
884 | );\r | |
885 | if (EFI_ERROR(Status)) {\r | |
886 | FreePool(mWorkingBuffer);\r | |
887 | return Status;\r | |
888 | }\r | |
889 | \r | |
890 | Status = ScsiIoDevice->ScsiPassThru->PassThru (\r | |
891 | ScsiIoDevice->ScsiPassThru,\r | |
892 | ScsiIoDevice->Pun.ScsiId.Scsi,\r | |
893 | ScsiIoDevice->Lun,\r | |
894 | mWorkingBuffer,\r | |
895 | PacketEvent\r | |
896 | );\r | |
897 | \r | |
898 | if (EFI_ERROR(Status)) {\r | |
899 | FreePool(mWorkingBuffer);\r | |
900 | gBS->CloseEvent(PacketEvent);\r | |
901 | return Status;\r | |
902 | }\r | |
903 | \r | |
904 | } else {\r | |
905 | //\r | |
906 | // If there's no event or SCSI Device doesn't support NON-BLOCKING, just convert\r | |
907 | // EFI1.0 PassThru packet back to UEFI2.0 SCSI IO Packet.\r | |
908 | //\r | |
909 | Status = ScsiIoDevice->ScsiPassThru->PassThru (\r | |
910 | ScsiIoDevice->ScsiPassThru,\r | |
911 | ScsiIoDevice->Pun.ScsiId.Scsi,\r | |
912 | ScsiIoDevice->Lun,\r | |
913 | mWorkingBuffer,\r | |
914 | Event\r | |
915 | );\r | |
916 | if (EFI_ERROR(Status)) {\r | |
917 | FreePool(mWorkingBuffer);\r | |
918 | return Status;\r | |
919 | }\r | |
920 | \r | |
921 | PassThruToScsiioPacket((EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET*)mWorkingBuffer,Packet);\r | |
922 | //\r | |
923 | // After converting EFI1.0 PassThru Packet back to UEFI2.0 SCSI IO Packet,\r | |
924 | // free mWorkingBuffer.\r | |
925 | //\r | |
926 | FreePool(mWorkingBuffer);\r | |
927 | }\r | |
928 | }\r | |
929 | return Status;\r | |
930 | }\r | |
931 | \r | |
932 | \r | |
933 | /**\r | |
934 | Scan SCSI Bus to discover the device, and attach ScsiIoProtocol to it.\r | |
935 | \r | |
936 | @param This Protocol instance pointer\r | |
937 | @param Controller Controller handle\r | |
938 | @param TargetId Tartget to be scanned\r | |
939 | @param Lun The Lun of the SCSI device on the SCSI channel.\r | |
940 | @param ScsiBusDev The pointer of SCSI_BUS_DEVICE\r | |
941 | \r | |
942 | @retval EFI_SUCCESS Successfully to discover the device and attach\r | |
943 | ScsiIoProtocol to it.\r | |
944 | @retval EFI_OUT_OF_RESOURCES Fail to discover the device.\r | |
945 | \r | |
946 | **/\r | |
947 | EFI_STATUS\r | |
948 | EFIAPI\r | |
949 | ScsiScanCreateDevice (\r | |
950 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
951 | IN EFI_HANDLE Controller,\r | |
952 | IN SCSI_TARGET_ID *TargetId,\r | |
953 | IN UINT64 Lun,\r | |
954 | IN OUT SCSI_BUS_DEVICE *ScsiBusDev\r | |
955 | )\r | |
956 | {\r | |
957 | EFI_STATUS Status;\r | |
958 | SCSI_IO_DEV *ScsiIoDevice;\r | |
959 | EFI_DEVICE_PATH_PROTOCOL *ScsiDevicePath;\r | |
960 | \r | |
961 | ScsiIoDevice = AllocateZeroPool (sizeof (SCSI_IO_DEV));\r | |
962 | if (ScsiIoDevice == NULL) {\r | |
963 | return EFI_OUT_OF_RESOURCES;\r | |
964 | }\r | |
965 | \r | |
966 | ScsiIoDevice->Signature = SCSI_IO_DEV_SIGNATURE;\r | |
967 | CopyMem(&ScsiIoDevice->Pun, TargetId, TARGET_MAX_BYTES);\r | |
968 | ScsiIoDevice->Lun = Lun;\r | |
969 | \r | |
970 | if (ScsiBusDev->ExtScsiSupport) {\r | |
971 | ScsiIoDevice->ExtScsiPassThru = ScsiBusDev->ExtScsiInterface;\r | |
972 | ScsiIoDevice->ExtScsiSupport = TRUE;\r | |
973 | ScsiIoDevice->ScsiIo.IoAlign = ScsiIoDevice->ExtScsiPassThru->Mode->IoAlign;\r | |
974 | \r | |
975 | } else {\r | |
976 | ScsiIoDevice->ScsiPassThru = ScsiBusDev->ScsiInterface;\r | |
977 | ScsiIoDevice->ExtScsiSupport = FALSE;\r | |
978 | ScsiIoDevice->ScsiIo.IoAlign = ScsiIoDevice->ScsiPassThru->Mode->IoAlign;\r | |
979 | }\r | |
980 | \r | |
981 | ScsiIoDevice->ScsiIo.GetDeviceType = ScsiGetDeviceType;\r | |
982 | ScsiIoDevice->ScsiIo.GetDeviceLocation = ScsiGetDeviceLocation;\r | |
983 | ScsiIoDevice->ScsiIo.ResetBus = ScsiResetBus;\r | |
984 | ScsiIoDevice->ScsiIo.ResetDevice = ScsiResetDevice;\r | |
985 | ScsiIoDevice->ScsiIo.ExecuteScsiCommand = ScsiExecuteSCSICommand;\r | |
986 | \r | |
987 | \r | |
988 | if (!DiscoverScsiDevice (ScsiIoDevice)) {\r | |
989 | FreePool (ScsiIoDevice);\r | |
990 | return EFI_OUT_OF_RESOURCES;\r | |
991 | }\r | |
992 | \r | |
993 | //\r | |
994 | // Set Device Path\r | |
995 | //\r | |
996 | ScsiDevicePath = NULL;\r | |
997 | if (ScsiIoDevice->ExtScsiSupport){\r | |
998 | Status = ScsiIoDevice->ExtScsiPassThru->BuildDevicePath (\r | |
999 | ScsiIoDevice->ExtScsiPassThru,\r | |
1000 | &ScsiIoDevice->Pun.ScsiId.ExtScsi[0],\r | |
1001 | ScsiIoDevice->Lun,\r | |
1002 | &ScsiDevicePath\r | |
1003 | );\r | |
1004 | if (Status == EFI_OUT_OF_RESOURCES) {\r | |
1005 | FreePool (ScsiIoDevice);\r | |
1006 | return Status;\r | |
1007 | }\r | |
1008 | } else {\r | |
1009 | Status = ScsiIoDevice->ScsiPassThru->BuildDevicePath (\r | |
1010 | ScsiIoDevice->ScsiPassThru,\r | |
1011 | ScsiIoDevice->Pun.ScsiId.Scsi,\r | |
1012 | ScsiIoDevice->Lun,\r | |
1013 | &ScsiDevicePath\r | |
1014 | );\r | |
1015 | if (Status == EFI_OUT_OF_RESOURCES) {\r | |
1016 | FreePool (ScsiIoDevice);\r | |
1017 | return Status;\r | |
1018 | }\r | |
1019 | }\r | |
1020 | \r | |
1021 | ScsiIoDevice->DevicePath = AppendDevicePathNode (\r | |
1022 | ScsiBusDev->DevicePath,\r | |
1023 | ScsiDevicePath\r | |
1024 | );\r | |
1025 | //\r | |
1026 | // The memory space for ScsiDevicePath is allocated in\r | |
1027 | // ScsiPassThru->BuildDevicePath() function; It is no longer used\r | |
1028 | // after EfiAppendDevicePathNode,so free the memory it occupies.\r | |
1029 | //\r | |
1030 | FreePool (ScsiDevicePath);\r | |
1031 | \r | |
1032 | if (ScsiIoDevice->DevicePath == NULL) {\r | |
1033 | FreePool (ScsiIoDevice);\r | |
1034 | return EFI_OUT_OF_RESOURCES;\r | |
1035 | }\r | |
1036 | \r | |
1037 | Status = gBS->InstallMultipleProtocolInterfaces (\r | |
1038 | &ScsiIoDevice->Handle,\r | |
1039 | &gEfiDevicePathProtocolGuid,\r | |
1040 | ScsiIoDevice->DevicePath,\r | |
1041 | &gEfiScsiIoProtocolGuid,\r | |
1042 | &ScsiIoDevice->ScsiIo,\r | |
1043 | NULL\r | |
1044 | );\r | |
1045 | if (EFI_ERROR (Status)) {\r | |
1046 | FreePool (ScsiIoDevice);\r | |
1047 | return EFI_OUT_OF_RESOURCES;\r | |
1048 | } else {\r | |
1049 | if (ScsiBusDev->ExtScsiSupport) {\r | |
1050 | gBS->OpenProtocol (\r | |
1051 | Controller,\r | |
1052 | &gEfiExtScsiPassThruProtocolGuid,\r | |
1053 | (VOID **) &(ScsiBusDev->ExtScsiInterface),\r | |
1054 | This->DriverBindingHandle,\r | |
1055 | ScsiIoDevice->Handle,\r | |
1056 | EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER\r | |
1057 | );\r | |
1058 | } else {\r | |
1059 | gBS->OpenProtocol (\r | |
1060 | Controller,\r | |
1061 | &gEfiScsiPassThruProtocolGuid,\r | |
1062 | (VOID **) &(ScsiBusDev->ScsiInterface),\r | |
1063 | This->DriverBindingHandle,\r | |
1064 | ScsiIoDevice->Handle,\r | |
1065 | EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER\r | |
1066 | );\r | |
1067 | }\r | |
1068 | }\r | |
1069 | return EFI_SUCCESS;\r | |
1070 | }\r | |
1071 | \r | |
1072 | \r | |
1073 | /**\r | |
1074 | Discovery SCSI Device\r | |
1075 | \r | |
1076 | @param ScsiIoDevice The pointer of SCSI_IO_DEV\r | |
1077 | \r | |
1078 | @retval TRUE Find SCSI Device and verify it.\r | |
1079 | @retval FALSE Unable to find SCSI Device.\r | |
1080 | \r | |
1081 | **/\r | |
1082 | BOOLEAN\r | |
1083 | DiscoverScsiDevice (\r | |
1084 | IN OUT SCSI_IO_DEV *ScsiIoDevice\r | |
1085 | )\r | |
1086 | {\r | |
1087 | EFI_STATUS Status;\r | |
1088 | UINT32 InquiryDataLength;\r | |
1089 | UINT8 SenseDataLength;\r | |
1090 | UINT8 HostAdapterStatus;\r | |
1091 | UINT8 TargetStatus;\r | |
1092 | EFI_SCSI_SENSE_DATA SenseData;\r | |
1093 | EFI_SCSI_INQUIRY_DATA InquiryData;\r | |
1094 | \r | |
1095 | HostAdapterStatus = 0;\r | |
1096 | TargetStatus = 0;\r | |
1097 | //\r | |
1098 | // Using Inquiry command to scan for the device\r | |
1099 | //\r | |
1100 | InquiryDataLength = sizeof (EFI_SCSI_INQUIRY_DATA);\r | |
1101 | SenseDataLength = sizeof (EFI_SCSI_SENSE_DATA);\r | |
1102 | \r | |
1103 | Status = ScsiInquiryCommand (\r | |
1104 | &ScsiIoDevice->ScsiIo,\r | |
1105 | EFI_TIMER_PERIOD_SECONDS (1),\r | |
1106 | (VOID *) &SenseData,\r | |
1107 | &SenseDataLength,\r | |
1108 | &HostAdapterStatus,\r | |
1109 | &TargetStatus,\r | |
1110 | (VOID *) &InquiryData,\r | |
1111 | &InquiryDataLength,\r | |
1112 | FALSE\r | |
1113 | );\r | |
1114 | if (EFI_ERROR (Status)) {\r | |
1115 | return FALSE;\r | |
1116 | }\r | |
1117 | //\r | |
1118 | // Retrieved inquiry data successfully\r | |
1119 | //\r | |
1120 | if ((InquiryData.Peripheral_Qualifier != 0) &&\r | |
1121 | (InquiryData.Peripheral_Qualifier != 3)) {\r | |
1122 | return FALSE;\r | |
1123 | }\r | |
1124 | \r | |
1125 | if (InquiryData.Peripheral_Qualifier == 3) {\r | |
1126 | if (InquiryData.Peripheral_Type != 0x1f) {\r | |
1127 | return FALSE;\r | |
1128 | }\r | |
1129 | }\r | |
1130 | \r | |
1131 | if (0x1e >= InquiryData.Peripheral_Type && InquiryData.Peripheral_Type >= 0xa) {\r | |
1132 | return FALSE;\r | |
1133 | }\r | |
1134 | \r | |
1135 | //\r | |
1136 | // valid device type and peripheral qualifier combination.\r | |
1137 | //\r | |
1138 | ScsiIoDevice->ScsiDeviceType = InquiryData.Peripheral_Type;\r | |
1139 | ScsiIoDevice->RemovableDevice = InquiryData.RMB;\r | |
1140 | if (InquiryData.Version == 0) {\r | |
1141 | ScsiIoDevice->ScsiVersion = 0;\r | |
1142 | } else {\r | |
1143 | //\r | |
1144 | // ANSI-approved version\r | |
1145 | //\r | |
1146 | ScsiIoDevice->ScsiVersion = (UINT8) (InquiryData.Version & 0x03);\r | |
1147 | }\r | |
1148 | \r | |
1149 | return TRUE;\r | |
1150 | }\r | |
1151 | \r | |
1152 | \r | |
1153 | /**\r | |
1154 | Convert EFI_SCSI_IO_SCSI_REQUEST_PACKET packet to EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET packet.\r | |
1155 | \r | |
1156 | @param Packet The pointer of EFI_SCSI_IO_SCSI_REQUEST_PACKET\r | |
1157 | @param CommandPacket The pointer of EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET\r | |
1158 | \r | |
1159 | **/\r | |
1160 | EFI_STATUS\r | |
1161 | EFIAPI\r | |
1162 | ScsiioToPassThruPacket (\r | |
1163 | IN EFI_SCSI_IO_SCSI_REQUEST_PACKET *Packet,\r | |
1164 | OUT EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *CommandPacket\r | |
1165 | )\r | |
1166 | {\r | |
1167 | //\r | |
1168 | //EFI 1.10 doesn't support Bi-Direction Command.\r | |
1169 | //\r | |
1170 | if (Packet->DataDirection == EFI_SCSI_IO_DATA_DIRECTION_BIDIRECTIONAL) {\r | |
1171 | return EFI_UNSUPPORTED;\r | |
1172 | }\r | |
1173 | \r | |
1174 | ZeroMem (CommandPacket, sizeof (EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET));\r | |
1175 | \r | |
1176 | CommandPacket->Timeout = Packet->Timeout;\r | |
1177 | CommandPacket->Cdb = Packet->Cdb;\r | |
1178 | CommandPacket->CdbLength = Packet->CdbLength;\r | |
1179 | CommandPacket->DataDirection = Packet->DataDirection;\r | |
1180 | CommandPacket->HostAdapterStatus = Packet->HostAdapterStatus;\r | |
1181 | CommandPacket->TargetStatus = Packet->TargetStatus;\r | |
1182 | CommandPacket->SenseData = Packet->SenseData;\r | |
1183 | CommandPacket->SenseDataLength = Packet->SenseDataLength;\r | |
1184 | \r | |
1185 | if (Packet->DataDirection == EFI_SCSI_IO_DATA_DIRECTION_READ) {\r | |
1186 | CommandPacket->DataBuffer = Packet->InDataBuffer;\r | |
1187 | CommandPacket->TransferLength = Packet->InTransferLength;\r | |
1188 | } else if (Packet->DataDirection == EFI_SCSI_IO_DATA_DIRECTION_WRITE) {\r | |
1189 | CommandPacket->DataBuffer = Packet->OutDataBuffer;\r | |
1190 | CommandPacket->TransferLength = Packet->OutTransferLength;\r | |
1191 | }\r | |
1192 | return EFI_SUCCESS;\r | |
1193 | }\r | |
1194 | \r | |
1195 | \r | |
1196 | /**\r | |
1197 | Convert EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET packet to EFI_SCSI_IO_SCSI_REQUEST_PACKET packet.\r | |
1198 | \r | |
1199 | @param ScsiPacket The pointer of EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET\r | |
1200 | @param Packet The pointer of EFI_SCSI_IO_SCSI_REQUEST_PACKET\r | |
1201 | \r | |
1202 | **/\r | |
1203 | EFI_STATUS\r | |
1204 | EFIAPI\r | |
1205 | PassThruToScsiioPacket (\r | |
1206 | IN EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *ScsiPacket,\r | |
1207 | OUT EFI_SCSI_IO_SCSI_REQUEST_PACKET *Packet\r | |
1208 | )\r | |
1209 | {\r | |
1210 | Packet->Timeout = ScsiPacket->Timeout;\r | |
1211 | Packet->Cdb = ScsiPacket->Cdb;\r | |
1212 | Packet->CdbLength = ScsiPacket->CdbLength;\r | |
1213 | Packet->DataDirection = ScsiPacket->DataDirection;\r | |
1214 | Packet->HostAdapterStatus = ScsiPacket->HostAdapterStatus;\r | |
1215 | Packet->TargetStatus = ScsiPacket->TargetStatus;\r | |
1216 | Packet->SenseData = ScsiPacket->SenseData;\r | |
1217 | Packet->SenseDataLength = ScsiPacket->SenseDataLength;\r | |
1218 | \r | |
1219 | if (ScsiPacket->DataDirection == EFI_SCSI_IO_DATA_DIRECTION_READ) {\r | |
1220 | Packet->InDataBuffer = ScsiPacket->DataBuffer;\r | |
1221 | Packet->InTransferLength = ScsiPacket->TransferLength;\r | |
1222 | } else if (Packet->DataDirection == EFI_SCSI_IO_DATA_DIRECTION_WRITE) {\r | |
1223 | Packet->OutDataBuffer = ScsiPacket->DataBuffer;\r | |
1224 | Packet->OutTransferLength = ScsiPacket->TransferLength;\r | |
1225 | }\r | |
1226 | \r | |
1227 | return EFI_SUCCESS;\r | |
1228 | }\r | |
1229 | \r | |
1230 | /**\r | |
1231 | Notify Function in which convert EFI1.0 PassThru Packet back to UEF2.0\r | |
1232 | SCSI IO Packet.\r | |
1233 | \r | |
1234 | @param Event The instance of EFI_EVENT.\r | |
1235 | @param Context The parameter passed in.\r | |
1236 | \r | |
1237 | **/\r | |
1238 | VOID\r | |
1239 | EFIAPI\r | |
1240 | NotifyFunction (\r | |
1241 | IN EFI_EVENT Event,\r | |
1242 | IN VOID *Context\r | |
1243 | )\r | |
1244 | {\r | |
1245 | EFI_SCSI_IO_SCSI_REQUEST_PACKET *Packet;\r | |
1246 | EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *ScsiPacket;\r | |
1247 | EFI_EVENT CallerEvent;\r | |
1248 | SCSI_EVENT_DATA *PassData;\r | |
1249 | \r | |
1250 | PassData = (SCSI_EVENT_DATA*)Context;\r | |
1251 | Packet = (EFI_SCSI_IO_SCSI_REQUEST_PACKET *)PassData->Data1;\r | |
1252 | ScsiPacket = (EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET*)mWorkingBuffer;\r | |
1253 | \r | |
1254 | //\r | |
1255 | // Convert EFI1.0 PassThru packet to UEFI2.0 SCSI IO Packet.\r | |
1256 | //\r | |
1257 | PassThruToScsiioPacket(ScsiPacket, Packet);\r | |
1258 | \r | |
1259 | //\r | |
1260 | // After converting EFI1.0 PassThru Packet back to UEFI2.0 SCSI IO Packet,\r | |
1261 | // free mWorkingBuffer.\r | |
1262 | //\r | |
1263 | gBS->FreePool(mWorkingBuffer);\r | |
1264 | \r | |
1265 | //\r | |
1266 | // Signal Event to tell caller to pick up UEFI2.0 SCSI IO Packet.\r | |
1267 | //\r | |
1268 | CallerEvent = PassData->Data2;\r | |
1269 | gBS->CloseEvent(Event);\r | |
1270 | gBS->SignalEvent(CallerEvent);\r | |
1271 | }\r | |
1272 | \r |