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MdeModulePkg Ata: Use the new (incompatible) PortMultiplierPort semantics
[mirror_edk2.git] / MdeModulePkg / Bus / Ata / AtaAtapiPassThru / AtaAtapiPassThru.c
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a41b5272 1/** @file\r
2 This file implements ATA_PASSTHRU_PROCTOCOL and EXT_SCSI_PASSTHRU_PROTOCOL interfaces\r
3 for managed ATA controllers.\r
58727f29 4\r
23a596db 5 Copyright (c) 2010 - 2016, Intel Corporation. All rights reserved.<BR>\r
a41b5272 6 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#include "AtaAtapiPassThru.h"\r
17\r
18//\r
19// EFI_DRIVER_BINDING_PROTOCOL instance\r
20//\r
21EFI_DRIVER_BINDING_PROTOCOL gAtaAtapiPassThruDriverBinding = {\r
22 AtaAtapiPassThruSupported,\r
23 AtaAtapiPassThruStart,\r
24 AtaAtapiPassThruStop,\r
25 0x10,\r
26 NULL,\r
27 NULL\r
28};\r
29\r
30ATA_ATAPI_PASS_THRU_INSTANCE gAtaAtapiPassThruInstanceTemplate = {\r
31 ATA_ATAPI_PASS_THRU_SIGNATURE,\r
32 0, // Controller Handle\r
33 NULL, // PciIo Protocol\r
34 NULL, // IdeControllerInit Protocol\r
35 { // AtaPassThruMode\r
36 //\r
37 // According to UEFI2.3 spec Section 12.10, Drivers for non-RAID ATA controllers should set\r
38 // both EFI_ATA_PASS_THRU_ATTRIBUTES_PHYSICAL and EFI_ATA_PASS_THRU_ATTRIBUTES_LOGICAL\r
39 // bits.\r
40 // Note that the driver doesn't support AtaPassThru non blocking I/O.\r
41 //\r
490b5ea1 42 EFI_ATA_PASS_THRU_ATTRIBUTES_PHYSICAL | EFI_ATA_PASS_THRU_ATTRIBUTES_LOGICAL | EFI_ATA_PASS_THRU_ATTRIBUTES_NONBLOCKIO,\r
a41b5272 43 //\r
44 // IoAlign\r
45 //\r
46 sizeof (UINTN)\r
47 },\r
48 { // AtaPassThru\r
58727f29 49 NULL,\r
a41b5272 50 AtaPassThruPassThru,\r
51 AtaPassThruGetNextPort,\r
52 AtaPassThruGetNextDevice,\r
53 AtaPassThruBuildDevicePath,\r
54 AtaPassThruGetDevice,\r
55 AtaPassThruResetPort,\r
58727f29 56 AtaPassThruResetDevice\r
a41b5272 57 },\r
58 { // ExtScsiPassThruMode\r
59 //\r
60 // AdapterId\r
61 //\r
62 0,\r
63 //\r
64 // According to UEFI2.3 spec Section 14.7, Drivers for non-RAID SCSI controllers should set\r
65 // both EFI_EXT_SCSI_PASS_THRU_ATTRIBUTES_PHYSICAL and EFI_EXT_SCSI_PASS_THRU_ATTRIBUTES_LOGICAL\r
66 // bits.\r
67 // Note that the driver doesn't support ExtScsiPassThru non blocking I/O.\r
58727f29 68 //\r
a41b5272 69 EFI_EXT_SCSI_PASS_THRU_ATTRIBUTES_PHYSICAL | EFI_EXT_SCSI_PASS_THRU_ATTRIBUTES_LOGICAL,\r
70 //\r
71 // IoAlign\r
72 //\r
73 sizeof (UINTN)\r
74 },\r
75 { // ExtScsiPassThru\r
76 NULL,\r
77 ExtScsiPassThruPassThru,\r
78 ExtScsiPassThruGetNextTargetLun,\r
79 ExtScsiPassThruBuildDevicePath,\r
80 ExtScsiPassThruGetTargetLun,\r
81 ExtScsiPassThruResetChannel,\r
82 ExtScsiPassThruResetTargetLun,\r
83 ExtScsiPassThruGetNextTarget\r
84 },\r
85 EfiAtaUnknownMode, // Work Mode\r
86 { // IdeRegisters\r
87 {0},\r
88 {0}\r
89 },\r
90 { // AhciRegisters\r
91 0\r
92 },\r
93 { // DeviceList\r
94 NULL,\r
95 NULL\r
96 },\r
97 0, // OriginalAttributes\r
98 0, // PreviousPort\r
99 0, // PreviousPortMultiplier\r
100 0, // PreviousTargetId\r
490b5ea1 101 0, // PreviousLun\r
102 NULL, // Timer event\r
103 { // NonBlocking TaskList\r
58727f29 104 NULL,\r
490b5ea1 105 NULL\r
106 }\r
a41b5272 107};\r
108\r
109ATAPI_DEVICE_PATH mAtapiDevicePathTemplate = {\r
110 {\r
111 MESSAGING_DEVICE_PATH,\r
112 MSG_ATAPI_DP,\r
ce68d3bc
SZ		 113 {\r
114 (UINT8) (sizeof (ATAPI_DEVICE_PATH)),\r
115 (UINT8) ((sizeof (ATAPI_DEVICE_PATH)) >> 8)\r
116 }\r
a41b5272 117 },\r
118 0,\r
119 0,\r
120 0\r
121};\r
122\r
123SATA_DEVICE_PATH mSataDevicePathTemplate = {\r
124 {\r
125 MESSAGING_DEVICE_PATH,\r
126 MSG_SATA_DP,\r
ce68d3bc
SZ		 127 {\r
128 (UINT8) (sizeof (SATA_DEVICE_PATH)),\r
129 (UINT8) ((sizeof (SATA_DEVICE_PATH)) >> 8)\r
130 }\r
a41b5272 131 },\r
132 0,\r
133 0,\r
134 0\r
135};\r
136\r
137UINT8 mScsiId[TARGET_MAX_BYTES] = {\r
138 0xFF, 0xFF, 0xFF, 0xFF,\r
139 0xFF, 0xFF, 0xFF, 0xFF,\r
140 0xFF, 0xFF, 0xFF, 0xFF,\r
141 0xFF, 0xFF, 0xFF, 0xFF\r
142};\r
143\r
490b5ea1 144/**\r
145 Sends an ATA command to an ATA device that is attached to the ATA controller. This function\r
146 supports both blocking I/O and non-blocking I/O. The blocking I/O functionality is required,\r
147 and the non-blocking I/O functionality is optional.\r
148\r
58727f29 149 @param[in] Port The port number of the ATA device to send the command.\r
490b5ea1 150 @param[in] PortMultiplierPort The port multiplier port number of the ATA device to send the command.\r
23a596db 151 If there is no port multiplier, then specify 0xFFFF.\r
490b5ea1 152 @param[in, out] Packet A pointer to the ATA command to send to the ATA device specified by Port\r
153 and PortMultiplierPort.\r
154 @param[in] Instance Pointer to the ATA_ATAPI_PASS_THRU_INSTANCE.\r
155 @param[in] Task Optional. Pointer to the ATA_NONBLOCK_TASK\r
156 used by non-blocking mode.\r
157\r
158 @retval EFI_SUCCESS The ATA command was sent by the host. For\r
159 bi-directional commands, InTransferLength bytes\r
160 were transferred from InDataBuffer. For\r
161 write and bi-directional commands, OutTransferLength\r
162 bytes were transferred by OutDataBuffer.\r
163 @retval EFI_BAD_BUFFER_SIZE The ATA command was not executed. The number\r
164 of bytes that could be transferred is returned\r
165 in InTransferLength. For write and bi-directional\r
166 commands, OutTransferLength bytes were transferred\r
167 by OutDataBuffer.\r
168 @retval EFI_NOT_READY The ATA command could not be sent because\r
169 there are too many ATA commands already\r
170 queued. The caller may retry again later.\r
171 @retval EFI_DEVICE_ERROR A device error occurred while attempting\r
172 to send the ATA command.\r
173 @retval EFI_INVALID_PARAMETER Port, PortMultiplierPort, or the contents\r
174 of Acb are invalid. The ATA command was\r
175 not sent, so no additional status information\r
176 is available.\r
177\r
178**/\r
179EFI_STATUS\r
180EFIAPI\r
181AtaPassThruPassThruExecute (\r
182 IN UINT16 Port,\r
183 IN UINT16 PortMultiplierPort,\r
184 IN OUT EFI_ATA_PASS_THRU_COMMAND_PACKET *Packet,\r
58727f29 185 IN ATA_ATAPI_PASS_THRU_INSTANCE *Instance,\r
490b5ea1 186 IN ATA_NONBLOCK_TASK *Task OPTIONAL\r
187 )\r
188{\r
189 EFI_ATA_PASS_THRU_CMD_PROTOCOL Protocol;\r
190 EFI_ATA_HC_WORK_MODE Mode;\r
191 EFI_STATUS Status;\r
58727f29 192\r
490b5ea1 193 Protocol = Packet->Protocol;\r
194\r
195 Mode = Instance->Mode;\r
196 switch (Mode) {\r
197 case EfiAtaIdeMode:\r
198 //\r
199 // Reassign IDE mode io port registers' base addresses\r
200 //\r
201 Status = GetIdeRegisterIoAddr (Instance->PciIo, Instance->IdeRegisters);\r
58727f29 202\r
490b5ea1 203 if (EFI_ERROR (Status)) {\r
204 return Status;\r
205 }\r
58727f29 206\r
490b5ea1 207 switch (Protocol) {\r
208 case EFI_ATA_PASS_THRU_PROTOCOL_ATA_NON_DATA:\r
209 Status = AtaNonDataCommandIn (\r
210 Instance->PciIo,\r
211 &Instance->IdeRegisters[Port],\r
212 Packet->Acb,\r
213 Packet->Asb,\r
58727f29 214 Packet->Timeout,\r
490b5ea1 215 Task\r
216 );\r
217 break;\r
218 case EFI_ATA_PASS_THRU_PROTOCOL_PIO_DATA_IN:\r
219 Status = AtaPioDataInOut (\r
220 Instance->PciIo,\r
221 &Instance->IdeRegisters[Port],\r
222 Packet->InDataBuffer,\r
223 Packet->InTransferLength,\r
224 TRUE,\r
225 Packet->Acb,\r
226 Packet->Asb,\r
227 Packet->Timeout,\r
228 Task\r
229 );\r
230 break;\r
231 case EFI_ATA_PASS_THRU_PROTOCOL_PIO_DATA_OUT:\r
232 Status = AtaPioDataInOut (\r
233 Instance->PciIo,\r
234 &Instance->IdeRegisters[Port],\r
235 Packet->OutDataBuffer,\r
236 Packet->OutTransferLength,\r
237 FALSE,\r
238 Packet->Acb,\r
239 Packet->Asb,\r
240 Packet->Timeout,\r
241 Task\r
242 );\r
243 break;\r
244 case EFI_ATA_PASS_THRU_PROTOCOL_UDMA_DATA_IN:\r
245 Status = AtaUdmaInOut (\r
246 Instance,\r
247 &Instance->IdeRegisters[Port],\r
248 TRUE,\r
249 Packet->InDataBuffer,\r
250 Packet->InTransferLength,\r
251 Packet->Acb,\r
252 Packet->Asb,\r
253 Packet->Timeout,\r
254 Task\r
255 );\r
256 break;\r
257 case EFI_ATA_PASS_THRU_PROTOCOL_UDMA_DATA_OUT:\r
258 Status = AtaUdmaInOut (\r
259 Instance,\r
260 &Instance->IdeRegisters[Port],\r
261 FALSE,\r
262 Packet->OutDataBuffer,\r
263 Packet->OutTransferLength,\r
264 Packet->Acb,\r
265 Packet->Asb,\r
266 Packet->Timeout,\r
267 Task\r
268 );\r
269 break;\r
270 default :\r
271 return EFI_UNSUPPORTED;\r
272 }\r
273 break;\r
274 case EfiAtaAhciMode :\r
23a596db
HW		 275 if (PortMultiplierPort == 0xFFFF) {\r
276 //\r
277 // If there is no port multiplier, PortMultiplierPort will be 0xFFFF\r
278 // according to UEFI spec. Here, we convert its value to 0 to follow\r
279 // AHCI spec.\r
280 //\r
281 PortMultiplierPort = 0;\r
282 }\r
490b5ea1 283 switch (Protocol) {\r
284 case EFI_ATA_PASS_THRU_PROTOCOL_ATA_NON_DATA:\r
285 Status = AhciNonDataTransfer (\r
286 Instance->PciIo,\r
287 &Instance->AhciRegisters,\r
288 (UINT8)Port,\r
289 (UINT8)PortMultiplierPort,\r
290 NULL,\r
291 0,\r
292 Packet->Acb,\r
293 Packet->Asb,\r
294 Packet->Timeout,\r
295 Task\r
296 );\r
297 break;\r
298 case EFI_ATA_PASS_THRU_PROTOCOL_PIO_DATA_IN:\r
299 Status = AhciPioTransfer (\r
300 Instance->PciIo,\r
301 &Instance->AhciRegisters,\r
302 (UINT8)Port,\r
303 (UINT8)PortMultiplierPort,\r
304 NULL,\r
305 0,\r
306 TRUE,\r
307 Packet->Acb,\r
308 Packet->Asb,\r
309 Packet->InDataBuffer,\r
310 Packet->InTransferLength,\r
311 Packet->Timeout,\r
312 Task\r
313 );\r
314 break;\r
315 case EFI_ATA_PASS_THRU_PROTOCOL_PIO_DATA_OUT:\r
316 Status = AhciPioTransfer (\r
317 Instance->PciIo,\r
318 &Instance->AhciRegisters,\r
319 (UINT8)Port,\r
320 (UINT8)PortMultiplierPort,\r
321 NULL,\r
322 0,\r
323 FALSE,\r
324 Packet->Acb,\r
325 Packet->Asb,\r
326 Packet->OutDataBuffer,\r
327 Packet->OutTransferLength,\r
58727f29 328 Packet->Timeout,\r
490b5ea1 329 Task\r
330 );\r
331 break;\r
332 case EFI_ATA_PASS_THRU_PROTOCOL_UDMA_DATA_IN:\r
333 Status = AhciDmaTransfer (\r
334 Instance,\r
335 &Instance->AhciRegisters,\r
336 (UINT8)Port,\r
337 (UINT8)PortMultiplierPort,\r
338 NULL,\r
339 0,\r
340 TRUE,\r
341 Packet->Acb,\r
342 Packet->Asb,\r
343 Packet->InDataBuffer,\r
344 Packet->InTransferLength,\r
345 Packet->Timeout,\r
346 Task\r
347 );\r
348 break;\r
349 case EFI_ATA_PASS_THRU_PROTOCOL_UDMA_DATA_OUT:\r
350 Status = AhciDmaTransfer (\r
351 Instance,\r
352 &Instance->AhciRegisters,\r
353 (UINT8)Port,\r
354 (UINT8)PortMultiplierPort,\r
355 NULL,\r
356 0,\r
357 FALSE,\r
358 Packet->Acb,\r
359 Packet->Asb,\r
360 Packet->OutDataBuffer,\r
361 Packet->OutTransferLength,\r
362 Packet->Timeout,\r
363 Task\r
364 );\r
365 break;\r
366 default :\r
367 return EFI_UNSUPPORTED;\r
368 }\r
369 break;\r
370\r
371 default:\r
372 Status = EFI_DEVICE_ERROR;\r
373 break;\r
374 }\r
58727f29 375\r
490b5ea1 376 return Status;\r
377}\r
378\r
379/**\r
380 Call back function when the timer event is signaled.\r
381\r
382 @param[in] Event The Event this notify function registered to.\r
383 @param[in] Context Pointer to the context data registered to the\r
58727f29 384 Event.\r
385\r
490b5ea1 386**/\r
387VOID\r
58727f29 388EFIAPI\r
490b5ea1 389AsyncNonBlockingTransferRoutine (\r
390 EFI_EVENT Event,\r
391 VOID* Context\r
392 )\r
393{\r
394 LIST_ENTRY *Entry;\r
395 LIST_ENTRY *EntryHeader;\r
396 ATA_NONBLOCK_TASK *Task;\r
397 EFI_STATUS Status;\r
398 ATA_ATAPI_PASS_THRU_INSTANCE *Instance;\r
399\r
400 Instance = (ATA_ATAPI_PASS_THRU_INSTANCE *) Context;\r
401 EntryHeader = &Instance->NonBlockingTaskList;\r
402 //\r
58727f29 403 // Get the Taks from the Taks List and execute it, until there is\r
490b5ea1 404 // no task in the list or the device is busy with task (EFI_NOT_READY).\r
405 //\r
406 while (TRUE) {\r
407 if (!IsListEmpty (EntryHeader)) {\r
408 Entry = GetFirstNode (EntryHeader);\r
409 Task = ATA_NON_BLOCK_TASK_FROM_ENTRY (Entry);\r
410 } else {\r
411 return;\r
412 }\r
413\r
414 Status = AtaPassThruPassThruExecute (\r
415 Task->Port,\r
416 Task->PortMultiplier,\r
417 Task->Packet,\r
418 Instance,\r
419 Task\r
420 );\r
421\r
422 //\r
58727f29 423 // If the data transfer meet a error, remove all tasks in the list since these tasks are\r
424 // associated with one task from Ata Bus and signal the event with error status.\r
490b5ea1 425 //\r
426 if ((Status != EFI_NOT_READY) && (Status != EFI_SUCCESS)) {\r
58727f29 427 DestroyAsynTaskList (Instance, TRUE);\r
428 break;\r
490b5ea1 429 }\r
58727f29 430\r
490b5ea1 431 //\r
432 // For Non blocking mode, the Status of EFI_NOT_READY means the operation\r
58727f29 433 // is not finished yet. Otherwise the operation is successful.\r
490b5ea1 434 //\r
58727f29 435 if (Status == EFI_NOT_READY) {\r
436 break;\r
437 } else {\r
490b5ea1 438 RemoveEntryList (&Task->Link);\r
439 gBS->SignalEvent (Task->Event);\r
440 FreePool (Task);\r
490b5ea1 441 }\r
442 }\r
443}\r
444\r
a41b5272 445/**\r
446 The Entry Point of module.\r
447\r
490b5ea1 448 @param[in] ImageHandle The firmware allocated handle for the EFI image.\r
a41b5272 449 @param[in] SystemTable A pointer to the EFI System Table.\r
490b5ea1 450\r
a41b5272 451 @retval EFI_SUCCESS The entry point is executed successfully.\r
452 @retval other Some error occurs when executing this entry point.\r
453\r
454**/\r
455EFI_STATUS\r
456EFIAPI\r
457InitializeAtaAtapiPassThru (\r
458 IN EFI_HANDLE ImageHandle,\r
459 IN EFI_SYSTEM_TABLE *SystemTable\r
460 )\r
461{\r
462 EFI_STATUS Status;\r
463\r
464 //\r
465 // Install driver model protocol(s).\r
466 //\r
467 Status = EfiLibInstallDriverBindingComponentName2 (\r
468 ImageHandle,\r
469 SystemTable,\r
470 &gAtaAtapiPassThruDriverBinding,\r
471 ImageHandle,\r
472 &gAtaAtapiPassThruComponentName,\r
473 &gAtaAtapiPassThruComponentName2\r
474 );\r
475 ASSERT_EFI_ERROR (Status);\r
476\r
477 return Status;\r
478}\r
479\r
480/**\r
58727f29 481 Tests to see if this driver supports a given controller. If a child device is provided,\r
a41b5272 482 it further tests to see if this driver supports creating a handle for the specified child device.\r
483\r
58727f29 484 This function checks to see if the driver specified by This supports the device specified by\r
485 ControllerHandle. Drivers will typically use the device path attached to\r
486 ControllerHandle and/or the services from the bus I/O abstraction attached to\r
487 ControllerHandle to determine if the driver supports ControllerHandle. This function\r
488 may be called many times during platform initialization. In order to reduce boot times, the tests\r
489 performed by this function must be very small, and take as little time as possible to execute. This\r
490 function must not change the state of any hardware devices, and this function must be aware that the\r
491 device specified by ControllerHandle may already be managed by the same driver or a\r
492 different driver. This function must match its calls to AllocatePages() with FreePages(),\r
493 AllocatePool() with FreePool(), and OpenProtocol() with CloseProtocol().\r
494 Because ControllerHandle may have been previously started by the same driver, if a protocol is\r
495 already in the opened state, then it must not be closed with CloseProtocol(). This is required\r
a41b5272 496 to guarantee the state of ControllerHandle is not modified by this function.\r
497\r
498 @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.\r
58727f29 499 @param[in] ControllerHandle The handle of the controller to test. This handle\r
500 must support a protocol interface that supplies\r
a41b5272 501 an I/O abstraction to the driver.\r
58727f29 502 @param[in] RemainingDevicePath A pointer to the remaining portion of a device path. This\r
503 parameter is ignored by device drivers, and is optional for bus\r
504 drivers. For bus drivers, if this parameter is not NULL, then\r
505 the bus driver must determine if the bus controller specified\r
506 by ControllerHandle and the child controller specified\r
507 by RemainingDevicePath are both supported by this\r
a41b5272 508 bus driver.\r
509\r
510 @retval EFI_SUCCESS The device specified by ControllerHandle and\r
511 RemainingDevicePath is supported by the driver specified by This.\r
512 @retval EFI_ALREADY_STARTED The device specified by ControllerHandle and\r
513 RemainingDevicePath is already being managed by the driver\r
514 specified by This.\r
515 @retval EFI_ACCESS_DENIED The device specified by ControllerHandle and\r
516 RemainingDevicePath is already being managed by a different\r
517 driver or an application that requires exclusive access.\r
518 Currently not implemented.\r
519 @retval EFI_UNSUPPORTED The device specified by ControllerHandle and\r
520 RemainingDevicePath is not supported by the driver specified by This.\r
521**/\r
522EFI_STATUS\r
523EFIAPI\r
524AtaAtapiPassThruSupported (\r
525 IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
526 IN EFI_HANDLE Controller,\r
527 IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r
528 )\r
529{\r
530 EFI_STATUS Status;\r
531 EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath;\r
532 EFI_PCI_IO_PROTOCOL *PciIo;\r
533 PCI_TYPE00 PciData;\r
534 EFI_IDE_CONTROLLER_INIT_PROTOCOL *IdeControllerInit;\r
535\r
536 //\r
537 // SATA Controller is a device driver, and should ingore the\r
538 // "RemainingDevicePath" according to UEFI spec\r
539 //\r
540 Status = gBS->OpenProtocol (\r
541 Controller,\r
542 &gEfiDevicePathProtocolGuid,\r
543 (VOID *) &ParentDevicePath,\r
544 This->DriverBindingHandle,\r
545 Controller,\r
546 EFI_OPEN_PROTOCOL_BY_DRIVER\r
547 );\r
548 if (EFI_ERROR (Status)) {\r
549 //\r
550 // EFI_ALREADY_STARTED is also an error\r
551 //\r
552 return Status;\r
553 }\r
554 //\r
555 // Close the protocol because we don't use it here\r
556 //\r
557 gBS->CloseProtocol (\r
558 Controller,\r
559 &gEfiDevicePathProtocolGuid,\r
560 This->DriverBindingHandle,\r
561 Controller\r
562 );\r
563\r
564 Status = gBS->OpenProtocol (\r
565 Controller,\r
566 &gEfiIdeControllerInitProtocolGuid,\r
567 (VOID **) &IdeControllerInit,\r
568 This->DriverBindingHandle,\r
569 Controller,\r
570 EFI_OPEN_PROTOCOL_BY_DRIVER\r
571 );\r
572\r
573 if (EFI_ERROR (Status)) {\r
574 //\r
575 // EFI_ALREADY_STARTED is also an error\r
576 //\r
577 return Status;\r
578 }\r
490b5ea1 579\r
a41b5272 580 //\r
581 // Close the I/O Abstraction(s) used to perform the supported test\r
582 //\r
583 gBS->CloseProtocol (\r
584 Controller,\r
585 &gEfiIdeControllerInitProtocolGuid,\r
586 This->DriverBindingHandle,\r
587 Controller\r
588 );\r
589\r
590 //\r
591 // Now test the EfiPciIoProtocol\r
592 //\r
593 Status = gBS->OpenProtocol (\r
594 Controller,\r
595 &gEfiPciIoProtocolGuid,\r
596 (VOID **) &PciIo,\r
597 This->DriverBindingHandle,\r
598 Controller,\r
599 EFI_OPEN_PROTOCOL_GET_PROTOCOL\r
600 );\r
601 if (EFI_ERROR (Status)) {\r
602 return Status;\r
603 }\r
604 //\r
605 // Now further check the PCI header: Base class (offset 0x0B) and\r
606 // Sub Class (offset 0x0A). This controller should be an ATA controller\r
607 //\r
608 Status = PciIo->Pci.Read (\r
609 PciIo,\r
610 EfiPciIoWidthUint8,\r
611 PCI_CLASSCODE_OFFSET,\r
612 sizeof (PciData.Hdr.ClassCode),\r
613 PciData.Hdr.ClassCode\r
614 );\r
615 if (EFI_ERROR (Status)) {\r
a41b5272 616 return EFI_UNSUPPORTED;\r
617 }\r
a41b5272 618\r
619 if (IS_PCI_IDE (&PciData) || IS_PCI_SATADPA (&PciData)) {\r
620 return EFI_SUCCESS;\r
621 }\r
622\r
623 return EFI_UNSUPPORTED;\r
624}\r
625\r
626/**\r
627 Starts a device controller or a bus controller.\r
628\r
629 The Start() function is designed to be invoked from the EFI boot service ConnectController().\r
58727f29 630 As a result, much of the error checking on the parameters to Start() has been moved into this\r
631 common boot service. It is legal to call Start() from other locations,\r
a41b5272 632 but the following calling restrictions must be followed, or the system behavior will not be deterministic.\r
633 1. ControllerHandle must be a valid EFI_HANDLE.\r
634 2. If RemainingDevicePath is not NULL, then it must be a pointer to a naturally aligned\r
635 EFI_DEVICE_PATH_PROTOCOL.\r
636 3. Prior to calling Start(), the Supported() function for the driver specified by This must\r
490b5ea1 637 have been called with the same calling parameters, and Supported() must have returned EFI_SUCCESS.\r
a41b5272 638\r
639 @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.\r
58727f29 640 @param[in] ControllerHandle The handle of the controller to start. This handle\r
641 must support a protocol interface that supplies\r
a41b5272 642 an I/O abstraction to the driver.\r
58727f29 643 @param[in] RemainingDevicePath A pointer to the remaining portion of a device path. This\r
644 parameter is ignored by device drivers, and is optional for bus\r
645 drivers. For a bus driver, if this parameter is NULL, then handles\r
490b5ea1 646 for all the children of Controller are created by this driver.\r
58727f29 647 If this parameter is not NULL and the first Device Path Node is\r
648 not the End of Device Path Node, then only the handle for the\r
649 child device specified by the first Device Path Node of\r
a41b5272 650 RemainingDevicePath is created by this driver.\r
58727f29 651 If the first Device Path Node of RemainingDevicePath is\r
a41b5272 652 the End of Device Path Node, no child handle is created by this\r
653 driver.\r
654\r
655 @retval EFI_SUCCESS The device was started.\r
656 @retval EFI_DEVICE_ERROR The device could not be started due to a device error.Currently not implemented.\r
657 @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.\r
658 @retval Others The driver failded to start the device.\r
659\r
660**/\r
661EFI_STATUS\r
662EFIAPI\r
663AtaAtapiPassThruStart (\r
664 IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
665 IN EFI_HANDLE Controller,\r
666 IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r
667 )\r
668{\r
669 EFI_STATUS Status;\r
670 EFI_IDE_CONTROLLER_INIT_PROTOCOL *IdeControllerInit;\r
671 ATA_ATAPI_PASS_THRU_INSTANCE *Instance;\r
672 EFI_PCI_IO_PROTOCOL *PciIo;\r
673 UINT64 Supports;\r
a41b5272 674 UINT64 OriginalPciAttributes;\r
675\r
676 Status = EFI_SUCCESS;\r
677 IdeControllerInit = NULL;\r
678 Instance = NULL;\r
a41b5272 679 OriginalPciAttributes = 0;\r
680\r
681 DEBUG ((EFI_D_INFO, "==AtaAtapiPassThru Start== Controller = %x\n", Controller));\r
682\r
683 Status = gBS->OpenProtocol (\r
684 Controller,\r
685 &gEfiIdeControllerInitProtocolGuid,\r
686 (VOID **) &IdeControllerInit,\r
687 This->DriverBindingHandle,\r
688 Controller,\r
689 EFI_OPEN_PROTOCOL_BY_DRIVER\r
690 );\r
691\r
692 if (EFI_ERROR (Status)) {\r
693 DEBUG ((EFI_D_ERROR, "Open Ide_Controller_Init Error, Status=%r", Status));\r
694 goto ErrorExit;\r
695 }\r
696\r
697 Status = gBS->OpenProtocol (\r
698 Controller,\r
699 &gEfiPciIoProtocolGuid,\r
700 (VOID **) &PciIo,\r
701 This->DriverBindingHandle,\r
702 Controller,\r
703 EFI_OPEN_PROTOCOL_GET_PROTOCOL\r
704 );\r
705 if (EFI_ERROR (Status)) {\r
706 DEBUG ((EFI_D_ERROR, "Get Pci_Io Protocol Error, Status=%r", Status));\r
707 goto ErrorExit;\r
708 }\r
709\r
710 Status = PciIo->Attributes (\r
711 PciIo,\r
712 EfiPciIoAttributeOperationGet,\r
713 0,\r
714 &OriginalPciAttributes\r
715 );\r
716\r
717 if (EFI_ERROR (Status)) {\r
718 goto ErrorExit;\r
719 }\r
a41b5272 720\r
721 Status = PciIo->Attributes (\r
722 PciIo,\r
723 EfiPciIoAttributeOperationSupported,\r
724 0,\r
725 &Supports\r
726 );\r
727 if (!EFI_ERROR (Status)) {\r
6e1e5405 728 Supports &= (UINT64)EFI_PCI_DEVICE_ENABLE;\r
a41b5272 729 Status = PciIo->Attributes (\r
730 PciIo,\r
731 EfiPciIoAttributeOperationEnable,\r
732 Supports,\r
733 NULL\r
734 );\r
735 }\r
736\r
737 if (EFI_ERROR (Status)) {\r
738 goto ErrorExit;\r
739 }\r
740\r
741 //\r
742 // Allocate a buffer to store the ATA_ATAPI_PASS_THRU_INSTANCE data structure\r
743 //\r
744 Instance = AllocateCopyPool (sizeof (ATA_ATAPI_PASS_THRU_INSTANCE), &gAtaAtapiPassThruInstanceTemplate);\r
745 if (Instance == NULL) {\r
746 goto ErrorExit;\r
747 }\r
748\r
749 Instance->ControllerHandle = Controller;\r
750 Instance->IdeControllerInit = IdeControllerInit;\r
751 Instance->PciIo = PciIo;\r
752 Instance->OriginalPciAttributes = OriginalPciAttributes;\r
753 Instance->AtaPassThru.Mode = &Instance->AtaPassThruMode;\r
754 Instance->ExtScsiPassThru.Mode = &Instance->ExtScsiPassThruMode;\r
755 InitializeListHead(&Instance->DeviceList);\r
490b5ea1 756 InitializeListHead(&Instance->NonBlockingTaskList);\r
757\r
758 Instance->TimerEvent = NULL;\r
759\r
760 Status = gBS->CreateEvent (\r
761 EVT_TIMER | EVT_NOTIFY_SIGNAL,\r
762 TPL_NOTIFY,\r
763 AsyncNonBlockingTransferRoutine,\r
764 Instance,\r
765 &Instance->TimerEvent\r
766 );\r
767 if (EFI_ERROR (Status)) {\r
768 goto ErrorExit;\r
769 }\r
58727f29 770\r
490b5ea1 771 //\r
772 // Set 1ms timer.\r
773 //\r
774 Status = gBS->SetTimer (Instance->TimerEvent, TimerPeriodic, 10000);\r
775 if (EFI_ERROR (Status)) {\r
776 goto ErrorExit;\r
777 }\r
a41b5272 778\r
779 //\r
780 // Enumerate all inserted ATA devices.\r
781 //\r
782 Status = EnumerateAttachedDevice (Instance);\r
783 if (EFI_ERROR (Status)) {\r
784 goto ErrorExit;\r
785 }\r
786\r
787 Status = gBS->InstallMultipleProtocolInterfaces (\r
788 &Controller,\r
789 &gEfiAtaPassThruProtocolGuid, &(Instance->AtaPassThru),\r
790 &gEfiExtScsiPassThruProtocolGuid, &(Instance->ExtScsiPassThru),\r
791 NULL\r
792 );\r
793 ASSERT_EFI_ERROR (Status);\r
794\r
795 return Status;\r
796\r
797ErrorExit:\r
798 if (IdeControllerInit != NULL) {\r
799 gBS->CloseProtocol (\r
800 Controller,\r
801 &gEfiIdeControllerInitProtocolGuid,\r
802 This->DriverBindingHandle,\r
803 Controller\r
804 );\r
805 }\r
806\r
d0844d13 807 if ((Instance != NULL) && (Instance->TimerEvent != NULL)) {\r
490b5ea1 808 gBS->CloseEvent (Instance->TimerEvent);\r
809 }\r
810\r
a41b5272 811 //\r
812 // Remove all inserted ATA devices.\r
813 //\r
814 DestroyDeviceInfoList(Instance);\r
815\r
816 if (Instance != NULL) {\r
817 FreePool (Instance);\r
818 }\r
819 return EFI_UNSUPPORTED;\r
820}\r
821\r
822/**\r
823 Stops a device controller or a bus controller.\r
58727f29 824\r
825 The Stop() function is designed to be invoked from the EFI boot service DisconnectController().\r
826 As a result, much of the error checking on the parameters to Stop() has been moved\r
827 into this common boot service. It is legal to call Stop() from other locations,\r
a41b5272 828 but the following calling restrictions must be followed, or the system behavior will not be deterministic.\r
829 1. ControllerHandle must be a valid EFI_HANDLE that was used on a previous call to this\r
830 same driver's Start() function.\r
831 2. The first NumberOfChildren handles of ChildHandleBuffer must all be a valid\r
832 EFI_HANDLE. In addition, all of these handles must have been created in this driver's\r
833 Start() function, and the Start() function must have called OpenProtocol() on\r
834 ControllerHandle with an Attribute of EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER.\r
58727f29 835\r
a41b5272 836 @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.\r
58727f29 837 @param[in] ControllerHandle A handle to the device being stopped. The handle must\r
838 support a bus specific I/O protocol for the driver\r
a41b5272 839 to use to stop the device.\r
840 @param[in] NumberOfChildren The number of child device handles in ChildHandleBuffer.\r
58727f29 841 @param[in] ChildHandleBuffer An array of child handles to be freed. May be NULL\r
a41b5272 842 if NumberOfChildren is 0.\r
843\r
844 @retval EFI_SUCCESS The device was stopped.\r
845 @retval EFI_DEVICE_ERROR The device could not be stopped due to a device error.\r
846\r
847**/\r
848EFI_STATUS\r
849EFIAPI\r
850AtaAtapiPassThruStop (\r
851 IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
852 IN EFI_HANDLE Controller,\r
853 IN UINTN NumberOfChildren,\r
854 IN EFI_HANDLE *ChildHandleBuffer\r
855 )\r
856{\r
857 EFI_STATUS Status;\r
858 ATA_ATAPI_PASS_THRU_INSTANCE *Instance;\r
859 EFI_ATA_PASS_THRU_PROTOCOL *AtaPassThru;\r
860 EFI_PCI_IO_PROTOCOL *PciIo;\r
861 EFI_AHCI_REGISTERS *AhciRegisters;\r
862 UINT64 Supports;\r
863\r
864 DEBUG ((EFI_D_INFO, "==AtaAtapiPassThru Stop== Controller = %x\n", Controller));\r
865\r
866 Status = gBS->OpenProtocol (\r
867 Controller,\r
868 &gEfiAtaPassThruProtocolGuid,\r
869 (VOID **) &AtaPassThru,\r
870 This->DriverBindingHandle,\r
871 Controller,\r
872 EFI_OPEN_PROTOCOL_GET_PROTOCOL\r
873 );\r
874\r
875 if (EFI_ERROR (Status)) {\r
876 return EFI_DEVICE_ERROR;\r
877 }\r
490b5ea1 878\r
879 Instance = ATA_PASS_THRU_PRIVATE_DATA_FROM_THIS (AtaPassThru);\r
880\r
32e817c9
FT		 881 Status = gBS->UninstallMultipleProtocolInterfaces (\r
882 Controller,\r
883 &gEfiAtaPassThruProtocolGuid, &(Instance->AtaPassThru),\r
884 &gEfiExtScsiPassThruProtocolGuid, &(Instance->ExtScsiPassThru),\r
885 NULL\r
886 );\r
a41b5272 887\r
32e817c9
FT		 888 if (EFI_ERROR (Status)) {\r
889 return EFI_DEVICE_ERROR;\r
a41b5272 890 }\r
891\r
a41b5272 892 //\r
893 // Close protocols opened by AtaAtapiPassThru controller driver\r
894 //\r
895 gBS->CloseProtocol (\r
896 Controller,\r
897 &gEfiIdeControllerInitProtocolGuid,\r
898 This->DriverBindingHandle,\r
899 Controller\r
900 );\r
901\r
32e817c9
FT		 902 //\r
903 // Close Non-Blocking timer and free Task list.\r
904 //\r
905 if (Instance->TimerEvent != NULL) {\r
906 gBS->CloseEvent (Instance->TimerEvent);\r
907 Instance->TimerEvent = NULL;\r
908 }\r
909 DestroyAsynTaskList (Instance, FALSE);\r
a41b5272 910 //\r
911 // Free allocated resource\r
912 //\r
32e817c9 913 DestroyDeviceInfoList (Instance);\r
a41b5272 914\r
915 //\r
916 // If the current working mode is AHCI mode, then pre-allocated resource\r
917 // for AHCI initialization should be released.\r
918 //\r
32e817c9
FT		 919 PciIo = Instance->PciIo;\r
920\r
a41b5272 921 if (Instance->Mode == EfiAtaAhciMode) {\r
922 AhciRegisters = &Instance->AhciRegisters;\r
923 PciIo->Unmap (\r
924 PciIo,\r
925 AhciRegisters->MapCommandTable\r
926 );\r
927 PciIo->FreeBuffer (\r
928 PciIo,\r
ed365e93 929 EFI_SIZE_TO_PAGES ((UINTN) AhciRegisters->MaxCommandTableSize),\r
a41b5272 930 AhciRegisters->AhciCommandTable\r
931 );\r
932 PciIo->Unmap (\r
933 PciIo,\r
934 AhciRegisters->MapCmdList\r
935 );\r
936 PciIo->FreeBuffer (\r
937 PciIo,\r
ed365e93 938 EFI_SIZE_TO_PAGES ((UINTN) AhciRegisters->MaxCommandListSize),\r
a41b5272 939 AhciRegisters->AhciCmdList\r
940 );\r
941 PciIo->Unmap (\r
942 PciIo,\r
943 AhciRegisters->MapRFis\r
944 );\r
945 PciIo->FreeBuffer (\r
946 PciIo,\r
ed365e93 947 EFI_SIZE_TO_PAGES ((UINTN) AhciRegisters->MaxReceiveFisSize),\r
a41b5272 948 AhciRegisters->AhciRFis\r
949 );\r
950 }\r
32e817c9
FT		 951\r
952 //\r
953 // Disable this ATA host controller.\r
954 //\r
955 Status = PciIo->Attributes (\r
956 PciIo,\r
957 EfiPciIoAttributeOperationSupported,\r
958 0,\r
959 &Supports\r
960 );\r
961 if (!EFI_ERROR (Status)) {\r
6e1e5405 962 Supports &= (UINT64)EFI_PCI_DEVICE_ENABLE;\r
32e817c9
FT		 963 PciIo->Attributes (\r
964 PciIo,\r
965 EfiPciIoAttributeOperationDisable,\r
966 Supports,\r
967 NULL\r
968 );\r
969 }\r
970\r
971 //\r
972 // Restore original PCI attributes\r
973 //\r
974 Status = PciIo->Attributes (\r
975 PciIo,\r
976 EfiPciIoAttributeOperationSet,\r
977 Instance->OriginalPciAttributes,\r
978 NULL\r
979 );\r
980 ASSERT_EFI_ERROR (Status);\r
981\r
a41b5272 982 FreePool (Instance);\r
983\r
984 return Status;\r
985}\r
986\r
987/**\r
988 Traverse the attached ATA devices list to find out the device to access.\r
58727f29 989\r
a41b5272 990 @param[in] Instance A pointer to the ATA_ATAPI_PASS_THRU_INSTANCE instance.\r
58727f29 991 @param[in] Port The port number of the ATA device to send the command.\r
a41b5272 992 @param[in] PortMultiplierPort The port multiplier port number of the ATA device to send the command.\r
23a596db 993 If there is no port multiplier, then specify 0xFFFF.\r
a41b5272 994 @param[in] DeviceType The device type of the ATA device.\r
58727f29 995\r
a41b5272 996 @retval The pointer to the data structure of the device info to access.\r
997\r
998**/\r
999LIST_ENTRY *\r
1000EFIAPI\r
1001SearchDeviceInfoList (\r
1002 IN ATA_ATAPI_PASS_THRU_INSTANCE *Instance,\r
1003 IN UINT16 Port,\r
1004 IN UINT16 PortMultiplier,\r
1005 IN EFI_ATA_DEVICE_TYPE DeviceType\r
1006 )\r
1007{\r
1008 EFI_ATA_DEVICE_INFO *DeviceInfo;\r
1009 LIST_ENTRY *Node;\r
1010\r
1011 Node = GetFirstNode (&Instance->DeviceList);\r
1012 while (!IsNull (&Instance->DeviceList, Node)) {\r
1013 DeviceInfo = ATA_ATAPI_DEVICE_INFO_FROM_THIS (Node);\r
1014\r
23a596db
HW		 1015 //\r
1016 // For CD-ROM working in the AHCI mode, only 8 bits are used to record\r
1017 // the PortMultiplier information. If the CD-ROM is directly attached\r
1018 // on a SATA port, the PortMultiplier should be translated from 0xFF\r
1019 // to 0xFFFF according to the UEFI spec.\r
1020 //\r
1021 if ((Instance->Mode == EfiAtaAhciMode) &&\r
1022 (DeviceInfo->Type == EfiIdeCdrom) &&\r
1023 (PortMultiplier == 0xFF)) {\r
1024 PortMultiplier = 0xFFFF;\r
1025 }\r
1026\r
a41b5272 1027 if ((DeviceInfo->Type == DeviceType) &&\r
58727f29 1028 (Port == DeviceInfo->Port) &&\r
a41b5272 1029 (PortMultiplier == DeviceInfo->PortMultiplier)) {\r
1030 return Node;\r
1031 }\r
1032\r
1033 Node = GetNextNode (&Instance->DeviceList, Node);\r
490b5ea1 1034 }\r
a41b5272 1035\r
1036 return NULL;\r
1037}\r
1038\r
1039/**\r
1040 Allocate device info data structure to contain device info.\r
1041 And insert the data structure to the tail of device list for tracing.\r
58727f29 1042\r
a41b5272 1043 @param[in] Instance A pointer to the ATA_ATAPI_PASS_THRU_INSTANCE instance.\r
58727f29 1044 @param[in] Port The port number of the ATA device to send the command.\r
a41b5272 1045 @param[in] PortMultiplierPort The port multiplier port number of the ATA device to send the command.\r
23a596db 1046 If there is no port multiplier, then specify 0xFFFF.\r
a41b5272 1047 @param[in] DeviceType The device type of the ATA device.\r
1048 @param[in] IdentifyData The data buffer to store the output of the IDENTIFY cmd.\r
1049\r
1050 @retval EFI_SUCCESS Successfully insert the ata device to the tail of device list.\r
1051 @retval EFI_OUT_OF_RESOURCES Can not allocate enough resource for use.\r
1052\r
1053**/\r
1054EFI_STATUS\r
1055EFIAPI\r
1056CreateNewDeviceInfo (\r
1057 IN ATA_ATAPI_PASS_THRU_INSTANCE *Instance,\r
1058 IN UINT16 Port,\r
1059 IN UINT16 PortMultiplier,\r
1060 IN EFI_ATA_DEVICE_TYPE DeviceType,\r
1061 IN EFI_IDENTIFY_DATA *IdentifyData\r
1062 )\r
1063{\r
1064 EFI_ATA_DEVICE_INFO *DeviceInfo;\r
1065\r
1066 DeviceInfo = AllocateZeroPool (sizeof (EFI_ATA_DEVICE_INFO));\r
1067\r
1068 if (DeviceInfo == NULL) {\r
1069 return EFI_OUT_OF_RESOURCES;\r
1070 }\r
1071\r
1072 DeviceInfo->Signature = ATA_ATAPI_DEVICE_SIGNATURE;\r
1073 DeviceInfo->Port = Port;\r
1074 DeviceInfo->PortMultiplier = PortMultiplier;\r
1075 DeviceInfo->Type = DeviceType;\r
1076\r
1077 if (IdentifyData != NULL) {\r
1078 DeviceInfo->IdentifyData = AllocateCopyPool (sizeof (EFI_IDENTIFY_DATA), IdentifyData);\r
1079 if (DeviceInfo->IdentifyData == NULL) {\r
1080 FreePool (DeviceInfo);\r
1081 return EFI_OUT_OF_RESOURCES;\r
1082 }\r
1083 }\r
1084\r
1085 InsertTailList (&Instance->DeviceList, &DeviceInfo->Link);\r
1086\r
1087 return EFI_SUCCESS;\r
1088}\r
1089\r
1090/**\r
1091 Destroy all attached ATA devices info.\r
58727f29 1092\r
a41b5272 1093 @param[in] Instance A pointer to the ATA_ATAPI_PASS_THRU_INSTANCE instance.\r
1094\r
1095**/\r
1096VOID\r
1097EFIAPI\r
1098DestroyDeviceInfoList (\r
1099 IN ATA_ATAPI_PASS_THRU_INSTANCE *Instance\r
1100 )\r
1101{\r
1102 EFI_ATA_DEVICE_INFO *DeviceInfo;\r
1103 LIST_ENTRY *Node;\r
1104\r
1105 Node = GetFirstNode (&Instance->DeviceList);\r
1106 while (!IsNull (&Instance->DeviceList, Node)) {\r
1107 DeviceInfo = ATA_ATAPI_DEVICE_INFO_FROM_THIS (Node);\r
1108\r
1109 Node = GetNextNode (&Instance->DeviceList, Node);\r
1110\r
1111 RemoveEntryList (&DeviceInfo->Link);\r
1112 if (DeviceInfo->IdentifyData != NULL) {\r
1113 FreePool (DeviceInfo->IdentifyData);\r
1114 }\r
1115 FreePool (DeviceInfo);\r
1116 }\r
1117}\r
1118\r
490b5ea1 1119/**\r
1120 Destroy all pending non blocking tasks.\r
58727f29 1121\r
1122 @param[in] Instance A pointer to the ATA_ATAPI_PASS_THRU_INSTANCE instance.\r
1123 @param[in] IsSigEvent Indicate whether signal the task event when remove the\r
1124 task.\r
490b5ea1 1125\r
1126**/\r
1127VOID\r
1128EFIAPI\r
1129DestroyAsynTaskList (\r
58727f29 1130 IN ATA_ATAPI_PASS_THRU_INSTANCE *Instance,\r
1131 IN BOOLEAN IsSigEvent\r
490b5ea1 1132 )\r
1133{\r
1134 LIST_ENTRY *Entry;\r
1135 LIST_ENTRY *DelEntry;\r
1136 ATA_NONBLOCK_TASK *Task;\r
1137 EFI_TPL OldTpl;\r
1138\r
1139 OldTpl = gBS->RaiseTPL (TPL_NOTIFY);\r
1140 if (!IsListEmpty (&Instance->NonBlockingTaskList)) {\r
1141 //\r
1142 // Free the Subtask list.\r
1143 //\r
58727f29 1144 for (Entry = (&Instance->NonBlockingTaskList)->ForwardLink;\r
490b5ea1 1145 Entry != (&Instance->NonBlockingTaskList);\r
1146 ) {\r
1147 DelEntry = Entry;\r
1148 Entry = Entry->ForwardLink;\r
1149 Task = ATA_NON_BLOCK_TASK_FROM_ENTRY (DelEntry);\r
1150\r
1151 RemoveEntryList (DelEntry);\r
58727f29 1152 if (IsSigEvent) {\r
1153 Task->Packet->Asb->AtaStatus = 0x01;\r
1154 gBS->SignalEvent (Task->Event);\r
1155 }\r
490b5ea1 1156 FreePool (Task);\r
1157 }\r
1158 }\r
1159 gBS->RestoreTPL (OldTpl);\r
1160}\r
1161\r
a41b5272 1162/**\r
1163 Enumerate all attached ATA devices at IDE mode or AHCI mode separately.\r
58727f29 1164\r
1165 The function is designed to enumerate all attached ATA devices.\r
1166\r
a41b5272 1167 @param[in] Instance A pointer to the ATA_ATAPI_PASS_THRU_INSTANCE instance.\r
1168\r
1169 @retval EFI_SUCCESS Successfully enumerate attached ATA devices.\r
1170 @retval EFI_DEVICE_ERROR The device could not be stopped due to a device error.\r
1171\r
1172**/\r
1173EFI_STATUS\r
1174EFIAPI\r
1175EnumerateAttachedDevice (\r
1176 IN ATA_ATAPI_PASS_THRU_INSTANCE *Instance\r
1177 )\r
1178{\r
1179 EFI_STATUS Status;\r
1180 PCI_TYPE00 PciData;\r
1181 UINT8 ClassCode;\r
1182\r
1183 Status = EFI_SUCCESS;\r
1184\r
1185 Status = Instance->PciIo->Pci.Read (\r
1186 Instance->PciIo,\r
1187 EfiPciIoWidthUint8,\r
1188 PCI_CLASSCODE_OFFSET,\r
1189 sizeof (PciData.Hdr.ClassCode),\r
1190 PciData.Hdr.ClassCode\r
1191 );\r
1192 ASSERT_EFI_ERROR (Status);\r
1193\r
1194 ClassCode = PciData.Hdr.ClassCode[1];\r
1195\r
1196 switch (ClassCode) {\r
1197 case PCI_CLASS_MASS_STORAGE_IDE :\r
1198 //\r
1199 // The ATA controller is working at IDE mode\r
1200 //\r
1201 Instance->Mode = EfiAtaIdeMode;\r
1202\r
1203 Status = IdeModeInitialization (Instance);\r
1204 if (EFI_ERROR (Status)) {\r
1205 Status = EFI_DEVICE_ERROR;\r
1206 goto Done;\r
1207 }\r
1208 break;\r
1209 case PCI_CLASS_MASS_STORAGE_SATADPA :\r
1210 //\r
1211 // The ATA controller is working at AHCI mode\r
1212 //\r
1213 Instance->Mode = EfiAtaAhciMode;\r
1214\r
1215 Status = AhciModeInitialization (Instance);\r
1216\r
1217 if (EFI_ERROR (Status)) {\r
1218 Status = EFI_DEVICE_ERROR;\r
1219 goto Done;\r
1220 }\r
1221\r
1222 break;\r
1223 default :\r
1224 Status = EFI_UNSUPPORTED;\r
1225 }\r
1226\r
1227Done:\r
1228 return Status;\r
1229}\r
1230\r
1231/**\r
1232 Sends an ATA command to an ATA device that is attached to the ATA controller. This function\r
1233 supports both blocking I/O and non-blocking I/O. The blocking I/O functionality is required,\r
1234 and the non-blocking I/O functionality is optional.\r
1235\r
58727f29 1236 @param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance.\r
1237 @param[in] Port The port number of the ATA device to send the command.\r
a41b5272 1238 @param[in] PortMultiplierPort The port multiplier port number of the ATA device to send the command.\r
23a596db 1239 If there is no port multiplier, then specify 0xFFFF.\r
a41b5272 1240 @param[in, out] Packet A pointer to the ATA command to send to the ATA device specified by Port\r
1241 and PortMultiplierPort.\r
1242 @param[in] Event If non-blocking I/O is not supported then Event is ignored, and blocking\r
1243 I/O is performed. If Event is NULL, then blocking I/O is performed. If\r
1244 Event is not NULL and non blocking I/O is supported, then non-blocking\r
1245 I/O is performed, and Event will be signaled when the ATA command completes.\r
1246\r
58727f29 1247 @retval EFI_SUCCESS The ATA command was sent by the host. For bi-directional commands,\r
a41b5272 1248 InTransferLength bytes were transferred from InDataBuffer. For write and\r
1249 bi-directional commands, OutTransferLength bytes were transferred by OutDataBuffer.\r
1250 @retval EFI_BAD_BUFFER_SIZE The ATA command was not executed. The number of bytes that could be transferred\r
58727f29 1251 is returned in InTransferLength. For write and bi-directional commands,\r
a41b5272 1252 OutTransferLength bytes were transferred by OutDataBuffer.\r
1253 @retval EFI_NOT_READY The ATA command could not be sent because there are too many ATA commands\r
1254 already queued. The caller may retry again later.\r
1255 @retval EFI_DEVICE_ERROR A device error occurred while attempting to send the ATA command.\r
1256 @retval EFI_INVALID_PARAMETER Port, PortMultiplierPort, or the contents of Acb are invalid. The ATA\r
1257 command was not sent, so no additional status information is available.\r
1258\r
1259**/\r
1260EFI_STATUS\r
1261EFIAPI\r
1262AtaPassThruPassThru (\r
1263 IN EFI_ATA_PASS_THRU_PROTOCOL *This,\r
1264 IN UINT16 Port,\r
1265 IN UINT16 PortMultiplierPort,\r
1266 IN OUT EFI_ATA_PASS_THRU_COMMAND_PACKET *Packet,\r
1267 IN EFI_EVENT Event OPTIONAL\r
490b5ea1 1268 )\r
a41b5272 1269{\r
a41b5272 1270 ATA_ATAPI_PASS_THRU_INSTANCE *Instance;\r
a41b5272 1271 LIST_ENTRY *Node;\r
1272 EFI_ATA_DEVICE_INFO *DeviceInfo;\r
1273 EFI_IDENTIFY_DATA *IdentifyData;\r
1274 UINT64 Capacity;\r
1275 UINT32 MaxSectorCount;\r
490b5ea1 1276 ATA_NONBLOCK_TASK *Task;\r
1277 EFI_TPL OldTpl;\r
e7401ee1 1278 UINT32 BlockSize;\r
a41b5272 1279\r
1280 Instance = ATA_PASS_THRU_PRIVATE_DATA_FROM_THIS (This);\r
1281\r
1282 if ((This->Mode->IoAlign > 1) && !IS_ALIGNED(Packet->InDataBuffer, This->Mode->IoAlign)) {\r
1283 return EFI_INVALID_PARAMETER;\r
1284 }\r
1285\r
1286 if ((This->Mode->IoAlign > 1) && !IS_ALIGNED(Packet->OutDataBuffer, This->Mode->IoAlign)) {\r
1287 return EFI_INVALID_PARAMETER;\r
1288 }\r
1289\r
1290 if ((This->Mode->IoAlign > 1) && !IS_ALIGNED(Packet->Asb, This->Mode->IoAlign)) {\r
1291 return EFI_INVALID_PARAMETER;\r
1292 }\r
1293\r
df202d72
FT		 1294 Node = SearchDeviceInfoList (Instance, Port, PortMultiplierPort, EfiIdeHarddisk);\r
1295\r
1296 if (Node == NULL) {\r
1297 Node = SearchDeviceInfoList(Instance, Port, PortMultiplierPort, EfiIdeCdrom);\r
1298 if (Node == NULL) {\r
1299 return EFI_INVALID_PARAMETER;\r
1300 }\r
1301 }\r
1302\r
a41b5272 1303 //\r
1304 // Check whether this device needs 48-bit addressing (ATAPI-6 ata device).\r
1305 // Per ATA-6 spec, word83: bit15 is zero and bit14 is one.\r
58727f29 1306 // If bit10 is one, it means the ata device support 48-bit addressing.\r
a41b5272 1307 //\r
1308 DeviceInfo = ATA_ATAPI_DEVICE_INFO_FROM_THIS (Node);\r
1309 IdentifyData = DeviceInfo->IdentifyData;\r
1310 MaxSectorCount = 0x100;\r
1311 if ((IdentifyData->AtaData.command_set_supported_83 & (BIT10 | BIT15 | BIT14)) == 0x4400) {\r
1312 Capacity = *((UINT64 *)IdentifyData->AtaData.maximum_lba_for_48bit_addressing);\r
1313 if (Capacity > 0xFFFFFFF) {\r
1314 //\r
1315 // Capacity exceeds 120GB. 48-bit addressing is really needed\r
1316 // In this case, the max sector count is 0x10000\r
1317 //\r
1318 MaxSectorCount = 0x10000;\r
1319 }\r
1320 }\r
1321\r
e7401ee1
FT		 1322 BlockSize = 0x200;\r
1323 if ((IdentifyData->AtaData.phy_logic_sector_support & (BIT14 | BIT15)) == BIT14) {\r
1324 //\r
1325 // Check logical block size\r
1326 //\r
1327 if ((IdentifyData->AtaData.phy_logic_sector_support & BIT12) != 0) {\r
1328 BlockSize = (UINT32) (((IdentifyData->AtaData.logic_sector_size_hi << 16) | IdentifyData->AtaData.logic_sector_size_lo) * sizeof (UINT16));\r
1329 }\r
1330 }\r
1331\r
1332 //\r
1333 // convert the transfer length from sector count to byte.\r
1334 //\r
1335 if (((Packet->Length & EFI_ATA_PASS_THRU_LENGTH_BYTES) == 0) &&\r
1336 (Packet->InTransferLength != 0)) {\r
1337 Packet->InTransferLength = Packet->InTransferLength * BlockSize;\r
1338 }\r
1339\r
1340 //\r
1341 // convert the transfer length from sector count to byte.\r
1342 //\r
1343 if (((Packet->Length & EFI_ATA_PASS_THRU_LENGTH_BYTES) == 0) &&\r
1344 (Packet->OutTransferLength != 0)) {\r
1345 Packet->OutTransferLength = Packet->OutTransferLength * BlockSize;\r
1346 }\r
1347\r
a41b5272 1348 //\r
1349 // If the data buffer described by InDataBuffer/OutDataBuffer and InTransferLength/OutTransferLength\r
1350 // is too big to be transferred in a single command, then no data is transferred and EFI_BAD_BUFFER_SIZE\r
58727f29 1351 // is returned.\r
a41b5272 1352 //\r
e7401ee1
FT		 1353 if (((Packet->InTransferLength != 0) && (Packet->InTransferLength > MaxSectorCount * BlockSize)) ||\r
1354 ((Packet->OutTransferLength != 0) && (Packet->OutTransferLength > MaxSectorCount * BlockSize))) {\r
a41b5272 1355 return EFI_BAD_BUFFER_SIZE;\r
1356 }\r
1357\r
490b5ea1 1358 //\r
1359 // For non-blocking mode, queue the Task into the list.\r
1360 //\r
1361 if (Event != NULL) {\r
1362 Task = AllocateZeroPool (sizeof (ATA_NONBLOCK_TASK));\r
1363 if (Task == NULL) {\r
1364 return EFI_OUT_OF_RESOURCES;\r
1365 }\r
58727f29 1366\r
490b5ea1 1367 Task->Signature = ATA_NONBLOCKING_TASK_SIGNATURE;\r
1368 Task->Port = Port;\r
1369 Task->PortMultiplier = PortMultiplierPort;\r
1370 Task->Packet = Packet;\r
1371 Task->Event = Event;\r
1372 Task->IsStart = FALSE;\r
ab82122d
TF		 1373 Task->RetryTimes = DivU64x32(Packet->Timeout, 1000) + 1;\r
1374 if (Packet->Timeout == 0) {\r
1375 Task->InfiniteWait = TRUE;\r
1376 } else {\r
1377 Task->InfiniteWait = FALSE;\r
1378 }\r
490b5ea1 1379\r
1380 OldTpl = gBS->RaiseTPL (TPL_NOTIFY);\r
1381 InsertTailList (&Instance->NonBlockingTaskList, &Task->Link);\r
1382 gBS->RestoreTPL (OldTpl);\r
a41b5272 1383\r
490b5ea1 1384 return EFI_SUCCESS;\r
1385 } else {\r
1386 return AtaPassThruPassThruExecute (\r
1387 Port,\r
1388 PortMultiplierPort,\r
1389 Packet,\r
1390 Instance,\r
1391 NULL\r
1392 );\r
a41b5272 1393 }\r
a41b5272 1394}\r
1395\r
1396/**\r
1397 Used to retrieve the list of legal port numbers for ATA devices on an ATA controller.\r
1398 These can either be the list of ports where ATA devices are actually present or the\r
1399 list of legal port numbers for the ATA controller. Regardless, the caller of this\r
1400 function must probe the port number returned to see if an ATA device is actually\r
1401 present at that location on the ATA controller.\r
1402\r
1403 The GetNextPort() function retrieves the port number on an ATA controller. If on input\r
1404 Port is 0xFFFF, then the port number of the first port on the ATA controller is returned\r
1405 in Port and EFI_SUCCESS is returned.\r
1406\r
1407 If Port is a port number that was returned on a previous call to GetNextPort(), then the\r
1408 port number of the next port on the ATA controller is returned in Port, and EFI_SUCCESS\r
1409 is returned. If Port is not 0xFFFF and Port was not returned on a previous call to\r
1410 GetNextPort(), then EFI_INVALID_PARAMETER is returned.\r
1411\r
1412 If Port is the port number of the last port on the ATA controller, then EFI_NOT_FOUND is\r
1413 returned.\r
1414\r
58727f29 1415 @param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance.\r
a41b5272 1416 @param[in, out] Port On input, a pointer to the port number on the ATA controller.\r
1417 On output, a pointer to the next port number on the ATA\r
1418 controller. An input value of 0xFFFF retrieves the first port\r
1419 number on the ATA controller.\r
1420\r
1421 @retval EFI_SUCCESS The next port number on the ATA controller was returned in Port.\r
1422 @retval EFI_NOT_FOUND There are no more ports on this ATA controller.\r
1423 @retval EFI_INVALID_PARAMETER Port is not 0xFFFF and Port was not returned on a previous call\r
1424 to GetNextPort().\r
1425\r
1426**/\r
1427EFI_STATUS\r
1428EFIAPI\r
1429AtaPassThruGetNextPort (\r
1430 IN EFI_ATA_PASS_THRU_PROTOCOL *This,\r
1431 IN OUT UINT16 *Port\r
1432 )\r
1433{\r
1434 ATA_ATAPI_PASS_THRU_INSTANCE *Instance;\r
1435 LIST_ENTRY *Node;\r
1436 EFI_ATA_DEVICE_INFO *DeviceInfo;\r
1437\r
1438 Instance = ATA_PASS_THRU_PRIVATE_DATA_FROM_THIS (This);\r
1439\r
1440 if (Port == NULL) {\r
1441 return EFI_INVALID_PARAMETER;\r
1442 }\r
1443\r
1444 if (*Port == 0xFFFF) {\r
1445 //\r
1446 // If the Port is all 0xFF's, start to traverse the device list from the beginning\r
1447 //\r
1448 Node = GetFirstNode (&Instance->DeviceList);\r
1449\r
1450 while (!IsNull (&Instance->DeviceList, Node)) {\r
1451 DeviceInfo = ATA_ATAPI_DEVICE_INFO_FROM_THIS (Node);\r
1452\r
1453 if (DeviceInfo->Type == EfiIdeHarddisk) {\r
1454 *Port = DeviceInfo->Port;\r
1455 goto Exit;\r
1456 }\r
1457\r
1458 Node = GetNextNode (&Instance->DeviceList, Node);\r
1459 }\r
1460\r
1461 return EFI_NOT_FOUND;\r
1462 } else if (*Port == Instance->PreviousPort) {\r
1463 Node = GetFirstNode (&Instance->DeviceList);\r
1464\r
1465 while (!IsNull (&Instance->DeviceList, Node)) {\r
1466 DeviceInfo = ATA_ATAPI_DEVICE_INFO_FROM_THIS (Node);\r
1467\r
1468 if ((DeviceInfo->Type == EfiIdeHarddisk) &&\r
1469 (DeviceInfo->Port > *Port)){\r
1470 *Port = DeviceInfo->Port;\r
1471 goto Exit;\r
1472 }\r
1473\r
1474 Node = GetNextNode (&Instance->DeviceList, Node);\r
1475 }\r
1476\r
1477 return EFI_NOT_FOUND;\r
1478 } else {\r
1479 //\r
1480 // Port is not equal to 0xFFFF and also not equal to previous return value\r
1481 //\r
1482 return EFI_INVALID_PARAMETER;\r
1483 }\r
490b5ea1 1484\r
a41b5272 1485Exit:\r
1486 //\r
1487 // Update the PreviousPort and PreviousPortMultiplier.\r
1488 //\r
1489 Instance->PreviousPort = *Port;\r
1490\r
1491 return EFI_SUCCESS;\r
1492}\r
1493\r
1494/**\r
58727f29 1495 Used to retrieve the list of legal port multiplier port numbers for ATA devices on a port of an ATA\r
1496 controller. These can either be the list of port multiplier ports where ATA devices are actually\r
1497 present on port or the list of legal port multiplier ports on that port. Regardless, the caller of this\r
1498 function must probe the port number and port multiplier port number returned to see if an ATA\r
a41b5272 1499 device is actually present.\r
1500\r
58727f29 1501 The GetNextDevice() function retrieves the port multiplier port number of an ATA device\r
a41b5272 1502 present on a port of an ATA controller.\r
490b5ea1 1503\r
58727f29 1504 If PortMultiplierPort points to a port multiplier port number value that was returned on a\r
a41b5272 1505 previous call to GetNextDevice(), then the port multiplier port number of the next ATA device\r
1506 on the port of the ATA controller is returned in PortMultiplierPort, and EFI_SUCCESS is\r
1507 returned.\r
490b5ea1 1508\r
58727f29 1509 If PortMultiplierPort points to 0xFFFF, then the port multiplier port number of the first\r
1510 ATA device on port of the ATA controller is returned in PortMultiplierPort and\r
a41b5272 1511 EFI_SUCCESS is returned.\r
490b5ea1 1512\r
a41b5272 1513 If PortMultiplierPort is not 0xFFFF and the value pointed to by PortMultiplierPort\r
1514 was not returned on a previous call to GetNextDevice(), then EFI_INVALID_PARAMETER\r
1515 is returned.\r
490b5ea1 1516\r
58727f29 1517 If PortMultiplierPort is the port multiplier port number of the last ATA device on the port of\r
a41b5272 1518 the ATA controller, then EFI_NOT_FOUND is returned.\r
1519\r
1520 @param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance.\r
1521 @param[in] Port The port number present on the ATA controller.\r
1522 @param[in, out] PortMultiplierPort On input, a pointer to the port multiplier port number of an\r
58727f29 1523 ATA device present on the ATA controller.\r
1524 If on input a PortMultiplierPort of 0xFFFF is specified,\r
a41b5272 1525 then the port multiplier port number of the first ATA device\r
1526 is returned. On output, a pointer to the port multiplier port\r
1527 number of the next ATA device present on an ATA controller.\r
1528\r
1529 @retval EFI_SUCCESS The port multiplier port number of the next ATA device on the port\r
1530 of the ATA controller was returned in PortMultiplierPort.\r
1531 @retval EFI_NOT_FOUND There are no more ATA devices on this port of the ATA controller.\r
1532 @retval EFI_INVALID_PARAMETER PortMultiplierPort is not 0xFFFF, and PortMultiplierPort was not\r
1533 returned on a previous call to GetNextDevice().\r
1534\r
1535**/\r
1536EFI_STATUS\r
1537EFIAPI\r
1538AtaPassThruGetNextDevice (\r
1539 IN EFI_ATA_PASS_THRU_PROTOCOL *This,\r
1540 IN UINT16 Port,\r
1541 IN OUT UINT16 *PortMultiplierPort\r
1542 )\r
1543{\r
1544 ATA_ATAPI_PASS_THRU_INSTANCE *Instance;\r
1545 LIST_ENTRY *Node;\r
1546 EFI_ATA_DEVICE_INFO *DeviceInfo;\r
1547\r
1548 Instance = ATA_PASS_THRU_PRIVATE_DATA_FROM_THIS (This);\r
1549\r
1550 if (PortMultiplierPort == NULL) {\r
1551 return EFI_INVALID_PARAMETER;\r
1552 }\r
1553\r
23a596db 1554 if (Instance->PreviousPortMultiplier == 0xFFFF) {\r
a41b5272 1555 //\r
23a596db
HW		 1556 // If a device is directly attached on a port, previous call to this\r
1557 // function will return the value 0xFFFF for PortMultiplierPort. In\r
1558 // this case, there should be no more device on the port multiplier.\r
a41b5272 1559 //\r
23a596db
HW		 1560 Instance->PreviousPortMultiplier = 0;\r
1561 return EFI_NOT_FOUND;\r
1562 }\r
1563\r
1564 if (*PortMultiplierPort == Instance->PreviousPortMultiplier) {\r
a41b5272 1565 Node = GetFirstNode (&Instance->DeviceList);\r
1566\r
1567 while (!IsNull (&Instance->DeviceList, Node)) {\r
1568 DeviceInfo = ATA_ATAPI_DEVICE_INFO_FROM_THIS (Node);\r
1569\r
1570 if ((DeviceInfo->Type == EfiIdeHarddisk) &&\r
23a596db
HW		 1571 (DeviceInfo->Port == Port) &&\r
1572 (DeviceInfo->PortMultiplier > *PortMultiplierPort)){\r
a41b5272 1573 *PortMultiplierPort = DeviceInfo->PortMultiplier;\r
1574 goto Exit;\r
1575 }\r
1576\r
1577 Node = GetNextNode (&Instance->DeviceList, Node);\r
1578 }\r
1579\r
1580 return EFI_NOT_FOUND;\r
23a596db
HW		 1581 } else if (*PortMultiplierPort == 0xFFFF) {\r
1582 //\r
1583 // If the PortMultiplierPort is all 0xFF's, start to traverse the device list from the beginning\r
1584 //\r
a41b5272 1585 Node = GetFirstNode (&Instance->DeviceList);\r
1586\r
1587 while (!IsNull (&Instance->DeviceList, Node)) {\r
1588 DeviceInfo = ATA_ATAPI_DEVICE_INFO_FROM_THIS (Node);\r
1589\r
1590 if ((DeviceInfo->Type == EfiIdeHarddisk) &&\r
23a596db 1591 (DeviceInfo->Port == Port)){\r
a41b5272 1592 *PortMultiplierPort = DeviceInfo->PortMultiplier;\r
1593 goto Exit;\r
1594 }\r
1595\r
1596 Node = GetNextNode (&Instance->DeviceList, Node);\r
1597 }\r
1598\r
1599 return EFI_NOT_FOUND;\r
1600 } else {\r
1601 //\r
1602 // PortMultiplierPort is not equal to 0xFFFF and also not equal to previous return value\r
1603 //\r
1604 return EFI_INVALID_PARAMETER;\r
1605 }\r
490b5ea1 1606\r
a41b5272 1607Exit:\r
1608 //\r
1609 // Update the PreviousPort and PreviousPortMultiplier.\r
1610 //\r
1611 Instance->PreviousPortMultiplier = *PortMultiplierPort;\r
1612\r
1613 return EFI_SUCCESS;\r
1614}\r
1615\r
1616/**\r
1617 Used to allocate and build a device path node for an ATA device on an ATA controller.\r
1618\r
1619 The BuildDevicePath() function allocates and builds a single device node for the ATA\r
1620 device specified by Port and PortMultiplierPort. If the ATA device specified by Port and\r
1621 PortMultiplierPort is not present on the ATA controller, then EFI_NOT_FOUND is returned.\r
1622 If DevicePath is NULL, then EFI_INVALID_PARAMETER is returned. If there are not enough\r
1623 resources to allocate the device path node, then EFI_OUT_OF_RESOURCES is returned.\r
1624\r
1625 Otherwise, DevicePath is allocated with the boot service AllocatePool(), the contents of\r
1626 DevicePath are initialized to describe the ATA device specified by Port and PortMultiplierPort,\r
1627 and EFI_SUCCESS is returned.\r
1628\r
1629 @param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance.\r
1630 @param[in] Port Port specifies the port number of the ATA device for which a\r
1631 device path node is to be allocated and built.\r
1632 @param[in] PortMultiplierPort The port multiplier port number of the ATA device for which a\r
1633 device path node is to be allocated and built. If there is no\r
23a596db 1634 port multiplier, then specify 0xFFFF.\r
a41b5272 1635 @param[in, out] DevicePath A pointer to a single device path node that describes the ATA\r
1636 device specified by Port and PortMultiplierPort. This function\r
1637 is responsible for allocating the buffer DevicePath with the\r
1638 boot service AllocatePool(). It is the caller's responsibility\r
1639 to free DevicePath when the caller is finished with DevicePath.\r
1640 @retval EFI_SUCCESS The device path node that describes the ATA device specified by\r
1641 Port and PortMultiplierPort was allocated and returned in DevicePath.\r
1642 @retval EFI_NOT_FOUND The ATA device specified by Port and PortMultiplierPort does not\r
1643 exist on the ATA controller.\r
1644 @retval EFI_INVALID_PARAMETER DevicePath is NULL.\r
1645 @retval EFI_OUT_OF_RESOURCES There are not enough resources to allocate DevicePath.\r
1646\r
1647**/\r
1648EFI_STATUS\r
1649EFIAPI\r
1650AtaPassThruBuildDevicePath (\r
1651 IN EFI_ATA_PASS_THRU_PROTOCOL *This,\r
1652 IN UINT16 Port,\r
1653 IN UINT16 PortMultiplierPort,\r
1654 IN OUT EFI_DEVICE_PATH_PROTOCOL **DevicePath\r
1655 )\r
1656{\r
1657 EFI_DEV_PATH *DevicePathNode;\r
1658 ATA_ATAPI_PASS_THRU_INSTANCE *Instance;\r
1659 LIST_ENTRY *Node;\r
1660\r
1661 Instance = ATA_PASS_THRU_PRIVATE_DATA_FROM_THIS (This);\r
1662\r
1663 //\r
1664 // Validate parameters passed in.\r
1665 //\r
1666 if (DevicePath == NULL) {\r
1667 return EFI_INVALID_PARAMETER;\r
1668 }\r
1669\r
1670 Node = SearchDeviceInfoList(Instance, Port, PortMultiplierPort, EfiIdeHarddisk);\r
1671 if (Node == NULL) {\r
1672 return EFI_NOT_FOUND;\r
1673 }\r
490b5ea1 1674\r
a41b5272 1675 if (Instance->Mode == EfiAtaIdeMode) {\r
1676 DevicePathNode = AllocateCopyPool (sizeof (ATAPI_DEVICE_PATH), &mAtapiDevicePathTemplate);\r
1677 if (DevicePathNode == NULL) {\r
1678 return EFI_OUT_OF_RESOURCES;\r
1679 }\r
1680 DevicePathNode->Atapi.PrimarySecondary = (UINT8) Port;\r
1681 DevicePathNode->Atapi.SlaveMaster = (UINT8) PortMultiplierPort;\r
1682 DevicePathNode->Atapi.Lun = 0;\r
1683 } else {\r
1684 DevicePathNode = AllocateCopyPool (sizeof (SATA_DEVICE_PATH), &mSataDevicePathTemplate);\r
1685 if (DevicePathNode == NULL) {\r
1686 return EFI_OUT_OF_RESOURCES;\r
1687 }\r
1688\r
1689 DevicePathNode->Sata.HBAPortNumber = Port;\r
1690 DevicePathNode->Sata.PortMultiplierPortNumber = PortMultiplierPort;\r
1691 DevicePathNode->Sata.Lun = 0;\r
1692 }\r
1693\r
1694 *DevicePath = (EFI_DEVICE_PATH_PROTOCOL *) DevicePathNode;\r
1695\r
1696 return EFI_SUCCESS;\r
1697}\r
1698\r
1699/**\r
1700 Used to translate a device path node to a port number and port multiplier port number.\r
1701\r
1702 The GetDevice() function determines the port and port multiplier port number associated with\r
1703 the ATA device described by DevicePath. If DevicePath is a device path node type that the\r
58727f29 1704 ATA Pass Thru driver supports, then the ATA Pass Thru driver will attempt to translate the contents\r
a41b5272 1705 DevicePath into a port number and port multiplier port number.\r
1706\r
1707 If this translation is successful, then that port number and port multiplier port number are returned\r
1708 in Port and PortMultiplierPort, and EFI_SUCCESS is returned.\r
1709\r
1710 If DevicePath, Port, or PortMultiplierPort are NULL, then EFI_INVALID_PARAMETER is returned.\r
1711\r
58727f29 1712 If DevicePath is not a device path node type that the ATA Pass Thru driver supports, then\r
a41b5272 1713 EFI_UNSUPPORTED is returned.\r
1714\r
58727f29 1715 If DevicePath is a device path node type that the ATA Pass Thru driver supports, but there is not\r
1716 a valid translation from DevicePath to a port number and port multiplier port number, then\r
a41b5272 1717 EFI_NOT_FOUND is returned.\r
1718\r
1719 @param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance.\r
1720 @param[in] DevicePath A pointer to the device path node that describes an ATA device on the\r
1721 ATA controller.\r
1722 @param[out] Port On return, points to the port number of an ATA device on the ATA controller.\r
1723 @param[out] PortMultiplierPort On return, points to the port multiplier port number of an ATA device\r
1724 on the ATA controller.\r
1725\r
1726 @retval EFI_SUCCESS DevicePath was successfully translated to a port number and port multiplier\r
1727 port number, and they were returned in Port and PortMultiplierPort.\r
1728 @retval EFI_INVALID_PARAMETER DevicePath is NULL.\r
1729 @retval EFI_INVALID_PARAMETER Port is NULL.\r
1730 @retval EFI_INVALID_PARAMETER PortMultiplierPort is NULL.\r
1731 @retval EFI_UNSUPPORTED This driver does not support the device path node type in DevicePath.\r
1732 @retval EFI_NOT_FOUND A valid translation from DevicePath to a port number and port multiplier\r
1733 port number does not exist.\r
1734**/\r
1735EFI_STATUS\r
1736EFIAPI\r
1737AtaPassThruGetDevice (\r
1738 IN EFI_ATA_PASS_THRU_PROTOCOL *This,\r
1739 IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,\r
1740 OUT UINT16 *Port,\r
1741 OUT UINT16 *PortMultiplierPort\r
1742 )\r
1743{\r
1744 EFI_DEV_PATH *DevicePathNode;\r
1745 ATA_ATAPI_PASS_THRU_INSTANCE *Instance;\r
1746 LIST_ENTRY *Node;\r
1747\r
1748 Instance = ATA_PASS_THRU_PRIVATE_DATA_FROM_THIS (This);\r
1749\r
1750 //\r
1751 // Validate parameters passed in.\r
1752 //\r
1753 if (DevicePath == NULL || Port == NULL || PortMultiplierPort == NULL) {\r
1754 return EFI_INVALID_PARAMETER;\r
1755 }\r
1756\r
1757 //\r
1758 // Check whether the DevicePath belongs to SCSI_DEVICE_PATH or ATAPI_DEVICE_PATH\r
1759 //\r
1760 if ((DevicePath->Type != MESSAGING_DEVICE_PATH) ||\r
1761 ((DevicePath->SubType != MSG_SATA_DP) &&\r
1762 (DevicePath->SubType != MSG_ATAPI_DP)) ||\r
1763 ((DevicePathNodeLength(DevicePath) != sizeof(ATAPI_DEVICE_PATH)) &&\r
1764 (DevicePathNodeLength(DevicePath) != sizeof(SATA_DEVICE_PATH)))) {\r
1765 return EFI_UNSUPPORTED;\r
1766 }\r
1767\r
1768 DevicePathNode = (EFI_DEV_PATH *) DevicePath;\r
1769\r
1770 if (Instance->Mode == EfiAtaIdeMode) {\r
1771 *Port = DevicePathNode->Atapi.PrimarySecondary;\r
1772 *PortMultiplierPort = DevicePathNode->Atapi.SlaveMaster;\r
1773 } else {\r
1774 *Port = DevicePathNode->Sata.HBAPortNumber;\r
1775 *PortMultiplierPort = DevicePathNode->Sata.PortMultiplierPortNumber;\r
1776 }\r
1777\r
1778 Node = SearchDeviceInfoList(Instance, *Port, *PortMultiplierPort, EfiIdeHarddisk);\r
1779\r
1780 if (Node == NULL) {\r
1781 return EFI_NOT_FOUND;\r
1782 }\r
1783\r
1784 return EFI_SUCCESS;\r
1785}\r
1786\r
1787/**\r
1788 Resets a specific port on the ATA controller. This operation also resets all the ATA devices\r
1789 connected to the port.\r
1790\r
1791 The ResetChannel() function resets an a specific port on an ATA controller. This operation\r
1792 resets all the ATA devices connected to that port. If this ATA controller does not support\r
1793 a reset port operation, then EFI_UNSUPPORTED is returned.\r
1794\r
1795 If a device error occurs while executing that port reset operation, then EFI_DEVICE_ERROR is\r
1796 returned.\r
1797\r
1798 If a timeout occurs during the execution of the port reset operation, then EFI_TIMEOUT is returned.\r
1799\r
1800 If the port reset operation is completed, then EFI_SUCCESS is returned.\r
1801\r
1802 @param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance.\r
1803 @param[in] Port The port number on the ATA controller.\r
1804\r
1805 @retval EFI_SUCCESS The ATA controller port was reset.\r
1806 @retval EFI_UNSUPPORTED The ATA controller does not support a port reset operation.\r
1807 @retval EFI_DEVICE_ERROR A device error occurred while attempting to reset the ATA port.\r
1808 @retval EFI_TIMEOUT A timeout occurred while attempting to reset the ATA port.\r
1809\r
1810**/\r
1811EFI_STATUS\r
1812EFIAPI\r
1813AtaPassThruResetPort (\r
1814 IN EFI_ATA_PASS_THRU_PROTOCOL *This,\r
1815 IN UINT16 Port\r
1816 )\r
1817{\r
71fd9fae
TF		 1818 //\r
1819 // Return success directly then upper layer driver could think reset port operation is done.\r
1820 //\r
1821 return EFI_SUCCESS;\r
a41b5272 1822}\r
1823\r
1824/**\r
1825 Resets an ATA device that is connected to an ATA controller.\r
1826\r
1827 The ResetDevice() function resets the ATA device specified by Port and PortMultiplierPort.\r
1828 If this ATA controller does not support a device reset operation, then EFI_UNSUPPORTED is\r
1829 returned.\r
1830\r
58727f29 1831 If Port or PortMultiplierPort are not in a valid range for this ATA controller, then\r
a41b5272 1832 EFI_INVALID_PARAMETER is returned.\r
1833\r
1834 If a device error occurs while executing that device reset operation, then EFI_DEVICE_ERROR\r
1835 is returned.\r
1836\r
1837 If a timeout occurs during the execution of the device reset operation, then EFI_TIMEOUT is\r
1838 returned.\r
1839\r
1840 If the device reset operation is completed, then EFI_SUCCESS is returned.\r
1841\r
1842 @param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance.\r
1843 @param[in] Port Port represents the port number of the ATA device to be reset.\r
1844 @param[in] PortMultiplierPort The port multiplier port number of the ATA device to reset.\r
23a596db 1845 If there is no port multiplier, then specify 0xFFFF.\r
a41b5272 1846 @retval EFI_SUCCESS The ATA device specified by Port and PortMultiplierPort was reset.\r
1847 @retval EFI_UNSUPPORTED The ATA controller does not support a device reset operation.\r
1848 @retval EFI_INVALID_PARAMETER Port or PortMultiplierPort are invalid.\r
1849 @retval EFI_DEVICE_ERROR A device error occurred while attempting to reset the ATA device\r
1850 specified by Port and PortMultiplierPort.\r
1851 @retval EFI_TIMEOUT A timeout occurred while attempting to reset the ATA device\r
1852 specified by Port and PortMultiplierPort.\r
1853\r
1854**/\r
1855EFI_STATUS\r
1856EFIAPI\r
1857AtaPassThruResetDevice (\r
1858 IN EFI_ATA_PASS_THRU_PROTOCOL *This,\r
1859 IN UINT16 Port,\r
1860 IN UINT16 PortMultiplierPort\r
1861 )\r
1862{\r
59b1b9d2
TF		 1863 ATA_ATAPI_PASS_THRU_INSTANCE *Instance;\r
1864 LIST_ENTRY *Node;\r
1865\r
1866 Instance = ATA_PASS_THRU_PRIVATE_DATA_FROM_THIS (This);\r
1867\r
1868 Node = SearchDeviceInfoList (Instance, Port, PortMultiplierPort, EfiIdeHarddisk);\r
1869\r
1870 if (Node == NULL) {\r
1871 return EFI_INVALID_PARAMETER;\r
1872 }\r
1873\r
71fd9fae
TF		 1874 //\r
1875 // Return success directly then upper layer driver could think reset device operation is done.\r
1876 //\r
1877 return EFI_SUCCESS;\r
a41b5272 1878}\r
1879\r
73a9e822
TF		 1880/**\r
1881 Sumbit ATAPI request sense command.\r
1882\r
1883 @param[in] This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.\r
1884 @param[in] Target The Target is an array of size TARGET_MAX_BYTES and it represents\r
1885 the id of the SCSI device to send the SCSI Request Packet. Each\r
1886 transport driver may choose to utilize a subset of this size to suit the needs\r
1887 of transport target representation. For example, a Fibre Channel driver\r
1888 may use only 8 bytes (WWN) to represent an FC target.\r
1889 @param[in] Lun The LUN of the SCSI device to send the SCSI Request Packet.\r
1890 @param[in] SenseData A pointer to store sense data.\r
1891 @param[in] SenseDataLength The sense data length.\r
1892 @param[in] Timeout The timeout value to execute this cmd, uses 100ns as a unit.\r
1893\r
1894 @retval EFI_SUCCESS Send out the ATAPI packet command successfully.\r
1895 @retval EFI_DEVICE_ERROR The device failed to send data.\r
1896\r
1897**/\r
1898EFI_STATUS\r
1899EFIAPI\r
1900AtaPacketRequestSense (\r
1901 IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,\r
1902 IN UINT8 *Target,\r
1903 IN UINT64 Lun,\r
1904 IN VOID *SenseData,\r
1905 IN UINT8 SenseDataLength,\r
1906 IN UINT64 Timeout\r
1907 )\r
1908{\r
1909 EFI_EXT_SCSI_PASS_THRU_SCSI_REQUEST_PACKET Packet;\r
1910 UINT8 Cdb[12];\r
1911 EFI_STATUS Status;\r
1912\r
1913 ZeroMem (&Packet, sizeof (EFI_EXT_SCSI_PASS_THRU_SCSI_REQUEST_PACKET));\r
1914 ZeroMem (Cdb, 12);\r
1915\r
1916 Cdb[0] = ATA_CMD_REQUEST_SENSE;\r
1917 Cdb[4] = SenseDataLength;\r
1918\r
1919 Packet.Timeout = Timeout;\r
1920 Packet.Cdb = Cdb;\r
1921 Packet.CdbLength = 12;\r
1922 Packet.DataDirection = EFI_EXT_SCSI_DATA_DIRECTION_READ;\r
1923 Packet.InDataBuffer = SenseData;\r
1924 Packet.InTransferLength = SenseDataLength;\r
1925\r
1926 Status = ExtScsiPassThruPassThru (This, Target, Lun, &Packet, NULL);\r
1927\r
1928 return Status;\r
1929}\r
1930\r
a41b5272 1931/**\r
58727f29 1932 Sends a SCSI Request Packet to a SCSI device that is attached to the SCSI channel. This function\r
a41b5272 1933 supports both blocking I/O and nonblocking I/O. The blocking I/O functionality is required, and the\r
58727f29 1934 nonblocking I/O functionality is optional.\r
a41b5272 1935\r
1936 @param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.\r
1937 @param Target The Target is an array of size TARGET_MAX_BYTES and it represents\r
1938 the id of the SCSI device to send the SCSI Request Packet. Each\r
1939 transport driver may choose to utilize a subset of this size to suit the needs\r
1940 of transport target representation. For example, a Fibre Channel driver\r
1941 may use only 8 bytes (WWN) to represent an FC target.\r
1942 @param Lun The LUN of the SCSI device to send the SCSI Request Packet.\r
1943 @param Packet A pointer to the SCSI Request Packet to send to the SCSI device\r
1944 specified by Target and Lun.\r
1945 @param Event If nonblocking I/O is not supported then Event is ignored, and blocking\r
1946 I/O is performed. If Event is NULL, then blocking I/O is performed. If\r
1947 Event is not NULL and non blocking I/O is supported, then\r
1948 nonblocking I/O is performed, and Event will be signaled when the\r
1949 SCSI Request Packet completes.\r
1950\r
1951 @retval EFI_SUCCESS The SCSI Request Packet was sent by the host. For bi-directional\r
1952 commands, InTransferLength bytes were transferred from\r
1953 InDataBuffer. For write and bi-directional commands,\r
1954 OutTransferLength bytes were transferred by\r
1955 OutDataBuffer.\r
1956 @retval EFI_BAD_BUFFER_SIZE The SCSI Request Packet was not executed. The number of bytes that\r
1957 could be transferred is returned in InTransferLength. For write\r
1958 and bi-directional commands, OutTransferLength bytes were\r
1959 transferred by OutDataBuffer.\r
1960 @retval EFI_NOT_READY The SCSI Request Packet could not be sent because there are too many\r
1961 SCSI Request Packets already queued. The caller may retry again later.\r
1962 @retval EFI_DEVICE_ERROR A device error occurred while attempting to send the SCSI Request\r
1963 Packet.\r
1964 @retval EFI_INVALID_PARAMETER Target, Lun, or the contents of ScsiRequestPacket are invalid.\r
1965 @retval EFI_UNSUPPORTED The command described by the SCSI Request Packet is not supported\r
1966 by the host adapter. This includes the case of Bi-directional SCSI\r
1967 commands not supported by the implementation. The SCSI Request\r
1968 Packet was not sent, so no additional status information is available.\r
1969 @retval EFI_TIMEOUT A timeout occurred while waiting for the SCSI Request Packet to execute.\r
1970\r
1971**/\r
1972EFI_STATUS\r
1973EFIAPI\r
1974ExtScsiPassThruPassThru (\r
1975 IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,\r
1976 IN UINT8 *Target,\r
1977 IN UINT64 Lun,\r
1978 IN OUT EFI_EXT_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *Packet,\r
1979 IN EFI_EVENT Event OPTIONAL\r
1980 )\r
1981{\r
1982 EFI_STATUS Status;\r
1983 ATA_ATAPI_PASS_THRU_INSTANCE *Instance;\r
1984 UINT8 Port;\r
1985 UINT8 PortMultiplier;\r
1986 EFI_ATA_HC_WORK_MODE Mode;\r
1987 LIST_ENTRY *Node;\r
1988 EFI_ATA_DEVICE_INFO *DeviceInfo;\r
73a9e822
TF		 1989 BOOLEAN SenseReq;\r
1990 EFI_SCSI_SENSE_DATA *PtrSenseData;\r
1991 UINTN SenseDataLen;\r
1992 EFI_STATUS SenseStatus;\r
a41b5272 1993\r
73a9e822
TF		 1994 SenseDataLen = 0;\r
1995 Instance = EXT_SCSI_PASS_THRU_PRIVATE_DATA_FROM_THIS (This);\r
a41b5272 1996\r
1997 if ((Packet == NULL) || (Packet->Cdb == NULL)) {\r
1998 return EFI_INVALID_PARAMETER;\r
1999 }\r
2000\r
2001 //\r
2002 // Don't support variable length CDB\r
2003 //\r
2004 if ((Packet->CdbLength != 6) && (Packet->CdbLength != 10) &&\r
2005 (Packet->CdbLength != 12) && (Packet->CdbLength != 16)) {\r
2006 return EFI_INVALID_PARAMETER;\r
2007 }\r
58727f29 2008\r
73a9e822
TF		 2009 if ((Packet->SenseDataLength != 0) && (Packet->SenseData == NULL)) {\r
2010 return EFI_INVALID_PARAMETER;\r
2011 }\r
2012\r
a41b5272 2013 if ((This->Mode->IoAlign > 1) && !IS_ALIGNED(Packet->InDataBuffer, This->Mode->IoAlign)) {\r
2014 return EFI_INVALID_PARAMETER;\r
2015 }\r
2016\r
2017 if ((This->Mode->IoAlign > 1) && !IS_ALIGNED(Packet->OutDataBuffer, This->Mode->IoAlign)) {\r
2018 return EFI_INVALID_PARAMETER;\r
2019 }\r
2020\r
2021 if ((This->Mode->IoAlign > 1) && !IS_ALIGNED(Packet->SenseData, This->Mode->IoAlign)) {\r
2022 return EFI_INVALID_PARAMETER;\r
2023 }\r
2024\r
2025 //\r
2026 // For ATAPI device, doesn't support multiple LUN device.\r
2027 //\r
2028 if (Lun != 0) {\r
2029 return EFI_INVALID_PARAMETER;\r
2030 }\r
2031\r
58727f29 2032 //\r
a41b5272 2033 // The layout of Target array:\r
2034 // ________________________________________________________________________\r
2035 // | Byte 0 | Byte 1 | ... | TARGET_MAX_BYTES - 1 |\r
2036 // |_____________________|_____________________|_____|______________________|\r
2037 // | | The port multiplier | | |\r
2038 // | The port number | port number | N/A | N/A |\r
2039 // |_____________________|_____________________|_____|______________________|\r
2040 //\r
2041 // For ATAPI device, 2 bytes is enough to represent the location of SCSI device.\r
2042 //\r
2043 Port = Target[0];\r
2044 PortMultiplier = Target[1];\r
2045\r
2046 Node = SearchDeviceInfoList(Instance, Port, PortMultiplier, EfiIdeCdrom);\r
2047 if (Node == NULL) {\r
2048 return EFI_INVALID_PARAMETER;\r
2049 }\r
2050\r
2051 DeviceInfo = ATA_ATAPI_DEVICE_INFO_FROM_THIS (Node);\r
2052\r
2053 //\r
2054 // ATA_CMD_IDENTIFY_DEVICE cmd is a ATA cmd but not a SCSI cmd.\r
2055 // Normally it should NOT be passed down through ExtScsiPassThru protocol interface.\r
2056 // But to response EFI_DISK_INFO.Identify() request from ScsiDisk, we should handle this command.\r
2057 //\r
2058 if (*((UINT8*)Packet->Cdb) == ATA_CMD_IDENTIFY_DEVICE) {\r
2059 CopyMem (Packet->InDataBuffer, DeviceInfo->IdentifyData, sizeof (EFI_IDENTIFY_DATA));\r
73a9e822
TF		 2060 //\r
2061 // For IDENTIFY DEVICE cmd, we don't need to get sense data.\r
2062 //\r
2063 Packet->SenseDataLength = 0;\r
a41b5272 2064 return EFI_SUCCESS;\r
2065 }\r
2066\r
2067 Mode = Instance->Mode;\r
2068 switch (Mode) {\r
2069 case EfiAtaIdeMode:\r
2070 //\r
2071 // Reassign IDE mode io port registers' base addresses\r
2072 //\r
2073 Status = GetIdeRegisterIoAddr (Instance->PciIo, Instance->IdeRegisters);\r
2074\r
2075 if (EFI_ERROR (Status)) {\r
2076 return Status;\r
2077 }\r
2078\r
2079 Status = AtaPacketCommandExecute (Instance->PciIo, &Instance->IdeRegisters[Port], Port, PortMultiplier, Packet);\r
2080 break;\r
2081 case EfiAtaAhciMode:\r
23a596db
HW		 2082 if (PortMultiplier == 0xFF) {\r
2083 //\r
2084 // If there is no port multiplier, the PortMultiplier will be 0xFF\r
2085 // Here, we convert its value to 0 to follow the AHCI spec.\r
2086 //\r
2087 PortMultiplier = 0;\r
2088 }\r
a41b5272 2089 Status = AhciPacketCommandExecute (Instance->PciIo, &Instance->AhciRegisters, Port, PortMultiplier, Packet);\r
2090 break;\r
2091 default :\r
2092 Status = EFI_DEVICE_ERROR;\r
2093 break;\r
2094 }\r
2095\r
73a9e822
TF		 2096 //\r
2097 // If the cmd doesn't get executed correctly, then check sense data.\r
2098 //\r
2099 if (EFI_ERROR (Status) && (Packet->SenseDataLength != 0) && (*((UINT8*)Packet->Cdb) != ATA_CMD_REQUEST_SENSE)) {\r
2100 PtrSenseData = AllocateAlignedPages (EFI_SIZE_TO_PAGES (sizeof (EFI_SCSI_SENSE_DATA)), This->Mode->IoAlign);\r
2101 if (PtrSenseData == NULL) {\r
2102 return EFI_DEVICE_ERROR;\r
2103 }\r
2104\r
2105 for (SenseReq = TRUE; SenseReq;) {\r
2106 SenseStatus = AtaPacketRequestSense (\r
2107 This,\r
2108 Target,\r
2109 Lun,\r
2110 PtrSenseData,\r
2111 sizeof (EFI_SCSI_SENSE_DATA),\r
2112 Packet->Timeout\r
2113 );\r
2114 if (EFI_ERROR (SenseStatus)) {\r
2115 break;\r
2116 }\r
2117\r
2118 CopyMem ((UINT8*)Packet->SenseData + SenseDataLen, PtrSenseData, sizeof (EFI_SCSI_SENSE_DATA));\r
2119 SenseDataLen += sizeof (EFI_SCSI_SENSE_DATA);\r
2120\r
2121 //\r
2122 // no more sense key or number of sense keys exceeds predefined,\r
2123 // skip the loop.\r
2124 //\r
e7401ee1 2125 if ((PtrSenseData->Sense_Key == EFI_SCSI_SK_NO_SENSE) ||\r
73a9e822
TF		 2126 (SenseDataLen + sizeof (EFI_SCSI_SENSE_DATA) > Packet->SenseDataLength)) {\r
2127 SenseReq = FALSE;\r
2128 }\r
2129 }\r
2130 FreeAlignedPages (PtrSenseData, EFI_SIZE_TO_PAGES (sizeof (EFI_SCSI_SENSE_DATA)));\r
2131 }\r
2132 //\r
2133 // Update the SenseDataLength field to the data length received.\r
2134 //\r
2135 Packet->SenseDataLength = (UINT8)SenseDataLen;\r
a41b5272 2136 return Status;\r
2137}\r
2138\r
2139/**\r
58727f29 2140 Used to retrieve the list of legal Target IDs and LUNs for SCSI devices on a SCSI channel. These\r
a41b5272 2141 can either be the list SCSI devices that are actually present on the SCSI channel, or the list of legal\r
58727f29 2142 Target Ids and LUNs for the SCSI channel. Regardless, the caller of this function must probe the\r
2143 Target ID and LUN returned to see if a SCSI device is actually present at that location on the SCSI\r
490b5ea1 2144 channel.\r
a41b5272 2145\r
2146 @param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.\r
2147 @param Target On input, a pointer to the Target ID (an array of size\r
2148 TARGET_MAX_BYTES) of a SCSI device present on the SCSI channel.\r
2149 On output, a pointer to the Target ID (an array of\r
2150 TARGET_MAX_BYTES) of the next SCSI device present on a SCSI\r
2151 channel. An input value of 0xF(all bytes in the array are 0xF) in the\r
2152 Target array retrieves the Target ID of the first SCSI device present on a\r
2153 SCSI channel.\r
2154 @param Lun On input, a pointer to the LUN of a SCSI device present on the SCSI\r
2155 channel. On output, a pointer to the LUN of the next SCSI device present\r
2156 on a SCSI channel.\r
2157\r
2158 @retval EFI_SUCCESS The Target ID and LUN of the next SCSI device on the SCSI\r
2159 channel was returned in Target and Lun.\r
2160 @retval EFI_INVALID_PARAMETER Target array is not all 0xF, and Target and Lun were\r
2161 not returned on a previous call to GetNextTargetLun().\r
2162 @retval EFI_NOT_FOUND There are no more SCSI devices on this SCSI channel.\r
2163\r
2164**/\r
2165EFI_STATUS\r
2166EFIAPI\r
2167ExtScsiPassThruGetNextTargetLun (\r
2168 IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,\r
2169 IN OUT UINT8 **Target,\r
2170 IN OUT UINT64 *Lun\r
2171 )\r
2172{\r
2173 ATA_ATAPI_PASS_THRU_INSTANCE *Instance;\r
2174 LIST_ENTRY *Node;\r
2175 EFI_ATA_DEVICE_INFO *DeviceInfo;\r
2176 UINT8 *Target8;\r
2177 UINT16 *Target16;\r
2178\r
2179 Instance = EXT_SCSI_PASS_THRU_PRIVATE_DATA_FROM_THIS (This);\r
2180\r
2181 if (Target == NULL || Lun == NULL) {\r
2182 return EFI_INVALID_PARAMETER;\r
2183 }\r
2184\r
2185 if (*Target == NULL) {\r
2186 return EFI_INVALID_PARAMETER;\r
2187 }\r
2188\r
2189 Target8 = *Target;\r
2190 Target16 = (UINT16 *)*Target;\r
2191\r
2192 if (CompareMem(Target8, mScsiId, TARGET_MAX_BYTES) != 0) {\r
2193 //\r
2194 // For ATAPI device, we use 2 least significant bytes to represent the location of SCSI device.\r
2195 // So the higher bytes in Target array should be 0xFF.\r
2196 //\r
2197 if (CompareMem (&Target8[2], &mScsiId[2], TARGET_MAX_BYTES - 2) != 0) {\r
2198 return EFI_INVALID_PARAMETER;\r
2199 }\r
2200\r
2201 //\r
2202 // When Target is not all 0xFF's, compare 2 least significant bytes with\r
2203 // previous target id to see if it is returned by previous call.\r
2204 //\r
2205 if ((*Target16 != Instance->PreviousTargetId) ||\r
2206 (*Lun != Instance->PreviousLun)) {\r
2207 return EFI_INVALID_PARAMETER;\r
2208 }\r
2209\r
2210 //\r
2211 // Traverse the whole device list to find the next cdrom closed to\r
2212 // the device signified by Target[0] and Target[1].\r
2213 //\r
2214 // Note that we here use a tricky way to find the next cdrom :\r
2215 // All ata devices are detected and inserted into the device list\r
2216 // sequentially.\r
2217 //\r
2218 Node = GetFirstNode (&Instance->DeviceList);\r
2219\r
2220 while (!IsNull (&Instance->DeviceList, Node)) {\r
2221 DeviceInfo = ATA_ATAPI_DEVICE_INFO_FROM_THIS (Node);\r
2222\r
2223 if ((DeviceInfo->Type == EfiIdeCdrom) &&\r
58727f29 2224 ((Target8[0] < DeviceInfo->Port) ||\r
d8982b03 2225 ((Target8[0] == DeviceInfo->Port) &&\r
23a596db 2226 (Target8[1] < (UINT8)DeviceInfo->PortMultiplier)))) {\r
a41b5272 2227 Target8[0] = (UINT8)DeviceInfo->Port;\r
2228 Target8[1] = (UINT8)DeviceInfo->PortMultiplier;\r
2229 goto Exit;\r
2230 }\r
2231\r
2232 Node = GetNextNode (&Instance->DeviceList, Node);\r
2233 }\r
2234\r
2235 return EFI_NOT_FOUND;\r
2236 } else {\r
2237 //\r
2238 // If the array is all 0xFF's, start to traverse the device list from the beginning\r
2239 //\r
2240 Node = GetFirstNode (&Instance->DeviceList);\r
2241 while (!IsNull (&Instance->DeviceList, Node)) {\r
2242 DeviceInfo = ATA_ATAPI_DEVICE_INFO_FROM_THIS (Node);\r
2243\r
2244 if (DeviceInfo->Type == EfiIdeCdrom) {\r
2245 Target8[0] = (UINT8)DeviceInfo->Port;\r
2246 Target8[1] = (UINT8)DeviceInfo->PortMultiplier;\r
2247 goto Exit;\r
2248 }\r
2249\r
2250 Node = GetNextNode (&Instance->DeviceList, Node);\r
2251 }\r
2252\r
2253 return EFI_NOT_FOUND;\r
2254 }\r
2255\r
2256Exit:\r
2257 *Lun = 0;\r
2258\r
2259 //\r
2260 // Update the PreviousTargetId.\r
2261 //\r
2262 Instance->PreviousTargetId = *Target16;\r
2263 Instance->PreviousLun = *Lun;\r
58727f29 2264\r
a41b5272 2265 return EFI_SUCCESS;\r
490b5ea1 2266}\r
a41b5272 2267\r
2268/**\r
2269 Used to allocate and build a device path node for a SCSI device on a SCSI channel.\r
2270\r
2271 @param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.\r
2272 @param Target The Target is an array of size TARGET_MAX_BYTES and it specifies the\r
2273 Target ID of the SCSI device for which a device path node is to be\r
2274 allocated and built. Transport drivers may chose to utilize a subset of\r
2275 this size to suit the representation of targets. For example, a Fibre\r
2276 Channel driver may use only 8 bytes (WWN) in the array to represent a\r
2277 FC target.\r
2278 @param Lun The LUN of the SCSI device for which a device path node is to be\r
2279 allocated and built.\r
2280 @param DevicePath A pointer to a single device path node that describes the SCSI device\r
2281 specified by Target and Lun. This function is responsible for\r
2282 allocating the buffer DevicePath with the boot service\r
2283 AllocatePool(). It is the caller's responsibility to free\r
2284 DevicePath when the caller is finished with DevicePath.\r
2285\r
2286 @retval EFI_SUCCESS The device path node that describes the SCSI device specified by\r
2287 Target and Lun was allocated and returned in\r
2288 DevicePath.\r
2289 @retval EFI_INVALID_PARAMETER DevicePath is NULL.\r
2290 @retval EFI_NOT_FOUND The SCSI devices specified by Target and Lun does not exist\r
2291 on the SCSI channel.\r
2292 @retval EFI_OUT_OF_RESOURCES There are not enough resources to allocate DevicePath.\r
2293\r
2294**/\r
2295EFI_STATUS\r
2296EFIAPI\r
2297ExtScsiPassThruBuildDevicePath (\r
2298 IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,\r
2299 IN UINT8 *Target,\r
2300 IN UINT64 Lun,\r
2301 IN OUT EFI_DEVICE_PATH_PROTOCOL **DevicePath\r
2302 )\r
2303{\r
2304 EFI_DEV_PATH *DevicePathNode;\r
2305 ATA_ATAPI_PASS_THRU_INSTANCE *Instance;\r
2306 UINT8 Port;\r
2307 UINT8 PortMultiplier;\r
2308\r
2309 Instance = EXT_SCSI_PASS_THRU_PRIVATE_DATA_FROM_THIS (This);\r
2310\r
2311 Port = Target[0];\r
2312 PortMultiplier = Target[1];\r
2313\r
2314 //\r
2315 // Validate parameters passed in.\r
2316 //\r
2317 if (DevicePath == NULL) {\r
2318 return EFI_INVALID_PARAMETER;\r
2319 }\r
2320\r
2321 //\r
2322 // can not build device path for the SCSI Host Controller.\r
2323 //\r
2324 if (Lun != 0) {\r
2325 return EFI_NOT_FOUND;\r
2326 }\r
2327\r
2328 if (SearchDeviceInfoList(Instance, Port, PortMultiplier, EfiIdeCdrom) == NULL) {\r
2329 return EFI_NOT_FOUND;\r
2330 }\r
58727f29 2331\r
a41b5272 2332 if (Instance->Mode == EfiAtaIdeMode) {\r
2333 DevicePathNode = AllocateCopyPool (sizeof (ATAPI_DEVICE_PATH), &mAtapiDevicePathTemplate);\r
2334 if (DevicePathNode == NULL) {\r
2335 return EFI_OUT_OF_RESOURCES;\r
2336 }\r
2337\r
2338 DevicePathNode->Atapi.PrimarySecondary = Port;\r
2339 DevicePathNode->Atapi.SlaveMaster = PortMultiplier;\r
2340 DevicePathNode->Atapi.Lun = (UINT16) Lun;\r
2341 } else {\r
2342 DevicePathNode = AllocateCopyPool (sizeof (SATA_DEVICE_PATH), &mSataDevicePathTemplate);\r
2343 if (DevicePathNode == NULL) {\r
2344 return EFI_OUT_OF_RESOURCES;\r
2345 }\r
2346\r
2347 DevicePathNode->Sata.HBAPortNumber = Port;\r
23a596db
HW		 2348 //\r
2349 // For CD-ROM working in the AHCI mode, only 8 bits are used to record\r
2350 // the PortMultiplier information. If the CD-ROM is directly attached\r
2351 // on a SATA port, the PortMultiplier should be translated from 0xFF\r
2352 // to 0xFFFF according to the UEFI spec.\r
2353 //\r
2354 DevicePathNode->Sata.PortMultiplierPortNumber = PortMultiplier == 0xFF ? 0xFFFF : PortMultiplier;\r
a41b5272 2355 DevicePathNode->Sata.Lun = (UINT16) Lun;\r
2356 }\r
2357\r
2358 *DevicePath = (EFI_DEVICE_PATH_PROTOCOL *) DevicePathNode;\r
2359\r
2360 return EFI_SUCCESS;\r
2361}\r
2362\r
2363/**\r
2364 Used to translate a device path node to a Target ID and LUN.\r
2365\r
2366 @param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.\r
2367 @param DevicePath A pointer to a single device path node that describes the SCSI device\r
2368 on the SCSI channel.\r
2369 @param Target A pointer to the Target Array which represents the ID of a SCSI device\r
2370 on the SCSI channel.\r
2371 @param Lun A pointer to the LUN of a SCSI device on the SCSI channel.\r
2372\r
2373 @retval EFI_SUCCESS DevicePath was successfully translated to a Target ID and\r
2374 LUN, and they were returned in Target and Lun.\r
2375 @retval EFI_INVALID_PARAMETER DevicePath or Target or Lun is NULL.\r
2376 @retval EFI_NOT_FOUND A valid translation from DevicePath to a Target ID and LUN\r
2377 does not exist.\r
2378 @retval EFI_UNSUPPORTED This driver does not support the device path node type in\r
2379 DevicePath.\r
2380\r
2381**/\r
2382EFI_STATUS\r
2383EFIAPI\r
2384ExtScsiPassThruGetTargetLun (\r
2385 IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,\r
2386 IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,\r
2387 OUT UINT8 **Target,\r
2388 OUT UINT64 *Lun\r
2389 )\r
2390{\r
2391 EFI_DEV_PATH *DevicePathNode;\r
2392 ATA_ATAPI_PASS_THRU_INSTANCE *Instance;\r
2393 LIST_ENTRY *Node;\r
2394\r
2395 Instance = EXT_SCSI_PASS_THRU_PRIVATE_DATA_FROM_THIS (This);\r
2396\r
2397 //\r
2398 // Validate parameters passed in.\r
2399 //\r
2400 if (DevicePath == NULL || Target == NULL || Lun == NULL) {\r
2401 return EFI_INVALID_PARAMETER;\r
2402 }\r
2403\r
2404 if (*Target == NULL) {\r
2405 return EFI_INVALID_PARAMETER;\r
2406 }\r
2407 //\r
2408 // Check whether the DevicePath belongs to SCSI_DEVICE_PATH\r
2409 //\r
2410 if ((DevicePath->Type != MESSAGING_DEVICE_PATH) ||\r
2411 ((DevicePath->SubType != MSG_ATAPI_DP) &&\r
2412 (DevicePath->SubType != MSG_SATA_DP)) ||\r
2413 ((DevicePathNodeLength(DevicePath) != sizeof(ATAPI_DEVICE_PATH)) &&\r
2414 (DevicePathNodeLength(DevicePath) != sizeof(SATA_DEVICE_PATH)))) {\r
2415 return EFI_UNSUPPORTED;\r
2416 }\r
2417\r
2418 SetMem (*Target, TARGET_MAX_BYTES, 0xFF);\r
2419\r
2420 DevicePathNode = (EFI_DEV_PATH *) DevicePath;\r
2421\r
2422 if (Instance->Mode == EfiAtaIdeMode) {\r
2423 (*Target)[0] = (UINT8) DevicePathNode->Atapi.PrimarySecondary;\r
2424 (*Target)[1] = (UINT8) DevicePathNode->Atapi.SlaveMaster;\r
2425 *Lun = (UINT8) DevicePathNode->Atapi.Lun;\r
2426 } else {\r
2427 (*Target)[0] = (UINT8) DevicePathNode->Sata.HBAPortNumber;\r
2428 (*Target)[1] = (UINT8) DevicePathNode->Sata.PortMultiplierPortNumber;\r
2429 *Lun = (UINT8) DevicePathNode->Sata.Lun;\r
2430 }\r
2431\r
2432 Node = SearchDeviceInfoList(Instance, (*Target)[0], (*Target)[1], EfiIdeCdrom);\r
2433\r
2434 if (Node == NULL) {\r
2435 return EFI_NOT_FOUND;\r
2436 }\r
2437\r
2438 if (*Lun != 0) {\r
2439 return EFI_NOT_FOUND;\r
2440 }\r
2441\r
2442 return EFI_SUCCESS;\r
2443}\r
2444\r
2445/**\r
2446 Resets a SCSI channel. This operation resets all the SCSI devices connected to the SCSI channel.\r
2447\r
2448 @param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.\r
2449\r
2450 @retval EFI_SUCCESS The SCSI channel was reset.\r
2451 @retval EFI_DEVICE_ERROR A device error occurred while attempting to reset the SCSI channel.\r
2452 @retval EFI_TIMEOUT A timeout occurred while attempting to reset the SCSI channel.\r
2453 @retval EFI_UNSUPPORTED The SCSI channel does not support a channel reset operation.\r
2454\r
2455**/\r
2456EFI_STATUS\r
2457EFIAPI\r
2458ExtScsiPassThruResetChannel (\r
2459 IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This\r
2460 )\r
2461{\r
71fd9fae
TF		 2462 //\r
2463 // Return success directly then upper layer driver could think reset channel operation is done.\r
2464 //\r
2465 return EFI_SUCCESS;\r
490b5ea1 2466}\r
2467\r
a41b5272 2468/**\r
2469 Resets a SCSI logical unit that is connected to a SCSI channel.\r
2470\r
2471 @param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.\r
2472 @param Target The Target is an array of size TARGET_MAX_BYTE and it represents the\r
2473 target port ID of the SCSI device containing the SCSI logical unit to\r
2474 reset. Transport drivers may chose to utilize a subset of this array to suit\r
2475 the representation of their targets.\r
2476 @param Lun The LUN of the SCSI device to reset.\r
2477\r
2478 @retval EFI_SUCCESS The SCSI device specified by Target and Lun was reset.\r
2479 @retval EFI_INVALID_PARAMETER Target or Lun is NULL.\r
2480 @retval EFI_TIMEOUT A timeout occurred while attempting to reset the SCSI device\r
2481 specified by Target and Lun.\r
2482 @retval EFI_UNSUPPORTED The SCSI channel does not support a target reset operation.\r
2483 @retval EFI_DEVICE_ERROR A device error occurred while attempting to reset the SCSI device\r
2484 specified by Target and Lun.\r
2485\r
2486**/\r
2487EFI_STATUS\r
2488EFIAPI\r
2489ExtScsiPassThruResetTargetLun (\r
2490 IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,\r
2491 IN UINT8 *Target,\r
2492 IN UINT64 Lun\r
2493 )\r
2494{\r
59b1b9d2
TF		 2495 ATA_ATAPI_PASS_THRU_INSTANCE *Instance;\r
2496 LIST_ENTRY *Node;\r
2497 UINT8 Port;\r
2498 UINT8 PortMultiplier;\r
2499\r
2500 Instance = EXT_SCSI_PASS_THRU_PRIVATE_DATA_FROM_THIS (This);\r
2501 //\r
2502 // For ATAPI device, doesn't support multiple LUN device.\r
2503 //\r
2504 if (Lun != 0) {\r
2505 return EFI_INVALID_PARAMETER;\r
2506 }\r
2507 //\r
2508 // The layout of Target array:\r
2509 // ________________________________________________________________________\r
2510 // | Byte 0 | Byte 1 | ... | TARGET_MAX_BYTES - 1 |\r
2511 // |_____________________|_____________________|_____|______________________|\r
2512 // | | The port multiplier | | |\r
2513 // | The port number | port number | N/A | N/A |\r
2514 // |_____________________|_____________________|_____|______________________|\r
2515 //\r
2516 // For ATAPI device, 2 bytes is enough to represent the location of SCSI device.\r
2517 //\r
2518 Port = Target[0];\r
2519 PortMultiplier = Target[1];\r
2520\r
2521 Node = SearchDeviceInfoList(Instance, Port, PortMultiplier, EfiIdeCdrom);\r
2522 if (Node == NULL) {\r
2523 return EFI_INVALID_PARAMETER;\r
2524 }\r
2525\r
71fd9fae
TF		 2526 //\r
2527 // Return success directly then upper layer driver could think reset target LUN operation is done.\r
2528 //\r
2529 return EFI_SUCCESS;\r
490b5ea1 2530}\r
a41b5272 2531\r
2532/**\r
58727f29 2533 Used to retrieve the list of legal Target IDs for SCSI devices on a SCSI channel. These can either\r
a41b5272 2534 be the list SCSI devices that are actually present on the SCSI channel, or the list of legal Target IDs\r
58727f29 2535 for the SCSI channel. Regardless, the caller of this function must probe the Target ID returned to\r
2536 see if a SCSI device is actually present at that location on the SCSI channel.\r
a41b5272 2537\r
2538 @param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.\r
2539 @param Target (TARGET_MAX_BYTES) of a SCSI device present on the SCSI channel.\r
2540 On output, a pointer to the Target ID (an array of\r
2541 TARGET_MAX_BYTES) of the next SCSI device present on a SCSI\r
2542 channel. An input value of 0xF(all bytes in the array are 0xF) in the\r
2543 Target array retrieves the Target ID of the first SCSI device present on a\r
2544 SCSI channel.\r
2545\r
2546 @retval EFI_SUCCESS The Target ID of the next SCSI device on the SCSI\r
2547 channel was returned in Target.\r
2548 @retval EFI_INVALID_PARAMETER Target or Lun is NULL.\r
2549 @retval EFI_TIMEOUT Target array is not all 0xF, and Target was not\r
2550 returned on a previous call to GetNextTarget().\r
2551 @retval EFI_NOT_FOUND There are no more SCSI devices on this SCSI channel.\r
2552\r
2553**/\r
2554EFI_STATUS\r
2555EFIAPI\r
2556ExtScsiPassThruGetNextTarget (\r
2557 IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,\r
2558 IN OUT UINT8 **Target\r
2559 )\r
2560{\r
2561 ATA_ATAPI_PASS_THRU_INSTANCE *Instance;\r
2562 LIST_ENTRY *Node;\r
2563 EFI_ATA_DEVICE_INFO *DeviceInfo;\r
2564 UINT8 *Target8;\r
2565 UINT16 *Target16;\r
2566\r
2567 Instance = EXT_SCSI_PASS_THRU_PRIVATE_DATA_FROM_THIS (This);\r
2568\r
2569 if (Target == NULL || *Target == NULL) {\r
2570 return EFI_INVALID_PARAMETER;\r
2571 }\r
2572\r
2573 Target8 = *Target;\r
2574 Target16 = (UINT16 *)*Target;\r
2575\r
2576 if (CompareMem(Target8, mScsiId, TARGET_MAX_BYTES) != 0) {\r
2577 //\r
2578 // For ATAPI device, we use 2 least significant bytes to represent the location of SCSI device.\r
2579 // So the higher bytes in Target array should be 0xFF.\r
2580 //\r
2581 if (CompareMem (&Target8[2], &mScsiId[2], TARGET_MAX_BYTES - 2) != 0) {\r
2582 return EFI_INVALID_PARAMETER;\r
2583 }\r
2584\r
2585 //\r
2586 // When Target is not all 0xFF's, compare 2 least significant bytes with\r
2587 // previous target id to see if it is returned by previous call.\r
2588 //\r
2589 if (*Target16 != Instance->PreviousTargetId) {\r
2590 return EFI_INVALID_PARAMETER;\r
2591 }\r
2592\r
2593 //\r
2594 // Traverse the whole device list to find the next cdrom closed to\r
2595 // the device signified by Target[0] and Target[1].\r
2596 //\r
2597 // Note that we here use a tricky way to find the next cdrom :\r
2598 // All ata devices are detected and inserted into the device list\r
2599 // sequentially.\r
2600 //\r
2601 Node = GetFirstNode (&Instance->DeviceList);\r
2602 while (!IsNull (&Instance->DeviceList, Node)) {\r
2603 DeviceInfo = ATA_ATAPI_DEVICE_INFO_FROM_THIS (Node);\r
2604\r
2605 if ((DeviceInfo->Type == EfiIdeCdrom) &&\r
58727f29 2606 ((Target8[0] < DeviceInfo->Port) ||\r
d8982b03 2607 ((Target8[0] == DeviceInfo->Port) &&\r
23a596db 2608 (Target8[1] < (UINT8)DeviceInfo->PortMultiplier)))) {\r
a41b5272 2609 Target8[0] = (UINT8)DeviceInfo->Port;\r
2610 Target8[1] = (UINT8)DeviceInfo->PortMultiplier;\r
2611 goto Exit;\r
2612 }\r
2613\r
2614 Node = GetNextNode (&Instance->DeviceList, Node);\r
2615 }\r
2616\r
2617 return EFI_NOT_FOUND;\r
2618 } else {\r
2619 //\r
2620 // If the array is all 0xFF's, start to traverse the device list from the beginning\r
2621 //\r
2622 Node = GetFirstNode (&Instance->DeviceList);\r
2623\r
2624 while (!IsNull (&Instance->DeviceList, Node)) {\r
2625 DeviceInfo = ATA_ATAPI_DEVICE_INFO_FROM_THIS (Node);\r
2626\r
2627 if (DeviceInfo->Type == EfiIdeCdrom) {\r
2628 Target8[0] = (UINT8)DeviceInfo->Port;\r
2629 Target8[1] = (UINT8)DeviceInfo->PortMultiplier;\r
2630 goto Exit;\r
2631 }\r
2632\r
2633 Node = GetNextNode (&Instance->DeviceList, Node);\r
2634 }\r
2635\r
2636 return EFI_NOT_FOUND;\r
2637 }\r
2638\r
2639Exit:\r
2640 //\r
2641 // Update the PreviousTargetId.\r
2642 //\r
2643 Instance->PreviousTargetId = *Target16;\r
2644\r
2645 return EFI_SUCCESS;\r
490b5ea1 2646}\r
a41b5272 2647\r
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