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513f3f44 | 1 | /** @file\r |
2 | Copyright (c) 2006, Intel Corporation \r | |
3 | All rights reserved. This program and the accompanying materials \r | |
4 | are licensed and made available under the terms and conditions of the BSD License \r | |
5 | which accompanies this distribution. The full text of the license may be found at \r | |
6 | http://opensource.org/licenses/bsd-license.php \r | |
7 | \r | |
8 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r | |
9 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r | |
10 | \r | |
11 | **/\r | |
12 | \r | |
13 | #include "AtapiPassThru.h"\r | |
14 | \r | |
15 | ///\r | |
16 | /// IDE registers' fixed address\r | |
17 | ///\r | |
18 | static IDE_BASE_REGISTERS gAtapiIoPortRegisters[2] = {\r | |
19 | { 0x1f0, { 0x1f1 }, 0x1f2, 0x1f3, 0x1f4, 0x1f5, 0x1f6, { 0x1f7 }, { 0x3f6 }, 0x3f7, 0 },\r | |
20 | { 0x170, { 0x171 }, 0x172, 0x173, 0x174, 0x175, 0x176, { 0x177 }, { 0x376 }, 0x377, 0 } \r | |
21 | };\r | |
22 | \r | |
23 | static SCSI_COMMAND_SET gEndTable = { 0xff, (DATA_DIRECTION) 0xff };\r | |
24 | \r | |
25 | ///\r | |
26 | /// This table contains all the supported ATAPI commands.\r | |
27 | ///\r | |
28 | static SCSI_COMMAND_SET gSupportedATAPICommands[] = {\r | |
29 | { OP_INQUIRY, DataIn },\r | |
30 | { OP_LOAD_UNLOAD_CD, NoData },\r | |
31 | { OP_MECHANISM_STATUS, DataIn },\r | |
32 | { OP_MODE_SELECT_10, DataOut },\r | |
33 | { OP_MODE_SENSE_10, DataIn },\r | |
34 | { OP_PAUSE_RESUME, NoData },\r | |
35 | { OP_PLAY_AUDIO_10, DataIn },\r | |
36 | { OP_PLAY_AUDIO_MSF, DataIn },\r | |
37 | { OP_PLAY_CD, DataIn },\r | |
38 | { OP_PLAY_CD_MSF, DataIn },\r | |
39 | { OP_PREVENT_ALLOW_MEDIUM_REMOVAL,NoData },\r | |
40 | { OP_READ_10, DataIn },\r | |
41 | { OP_READ_12, DataIn },\r | |
42 | { OP_READ_CAPACITY, DataIn },\r | |
43 | { OP_READ_CD, DataIn },\r | |
44 | { OP_READ_CD_MSF, DataIn },\r | |
45 | { OP_READ_HEADER, DataIn },\r | |
46 | { OP_READ_SUB_CHANNEL, DataIn },\r | |
47 | { OP_READ_TOC, DataIn },\r | |
48 | { OP_REQUEST_SENSE, DataIn },\r | |
49 | { OP_SCAN, NoData },\r | |
50 | { OP_SEEK_10, NoData },\r | |
51 | { OP_SET_CD_SPEED, DataOut },\r | |
52 | { OP_STOPPLAY_SCAN, NoData },\r | |
53 | { OP_START_STOP_UNIT, NoData },\r | |
54 | { OP_TEST_UNIT_READY, NoData },\r | |
55 | { OP_FORMAT_UNIT, DataOut },\r | |
56 | { OP_READ_FORMAT_CAPACITIES, DataIn },\r | |
57 | { OP_VERIFY, DataOut },\r | |
58 | { OP_WRITE_10, DataOut },\r | |
59 | { OP_WRITE_12, DataOut },\r | |
60 | { OP_WRITE_AND_VERIFY, DataOut },\r | |
61 | { 0xff, (DATA_DIRECTION) 0xff } \r | |
62 | };\r | |
63 | \r | |
64 | static CHAR16 *gControllerNameString = (CHAR16 *) L"ATAPI Controller";\r | |
65 | static CHAR16 *gAtapiChannelString = (CHAR16 *) L"ATAPI Channel";\r | |
66 | \r | |
67 | EFI_DRIVER_BINDING_PROTOCOL gAtapiScsiPassThruDriverBinding = {\r | |
68 | AtapiScsiPassThruDriverBindingSupported,\r | |
69 | AtapiScsiPassThruDriverBindingStart,\r | |
70 | AtapiScsiPassThruDriverBindingStop,\r | |
71 | 0xa,\r | |
72 | NULL,\r | |
73 | NULL\r | |
74 | };\r | |
75 | \r | |
76 | /**\r | |
77 | Supported.\r | |
78 | \r | |
79 | (Standard DriverBinding Protocol Supported() function)\r | |
80 | \r | |
81 | @return EFI_STATUS\r | |
82 | \r | |
83 | @todo This - add argument and description to function comment\r | |
84 | @todo Controller - add argument and description to function comment\r | |
85 | @todo RemainingDevicePath - add argument and description to function comment\r | |
86 | @todo EFI_UNSUPPORTED - add return value to function comment\r | |
87 | **/\r | |
88 | EFI_STATUS\r | |
89 | EFIAPI\r | |
90 | AtapiScsiPassThruDriverBindingSupported (\r | |
91 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
92 | IN EFI_HANDLE Controller,\r | |
93 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r | |
94 | )\r | |
95 | {\r | |
96 | EFI_STATUS Status;\r | |
97 | EFI_PCI_IO_PROTOCOL *PciIo;\r | |
98 | PCI_TYPE00 Pci;\r | |
99 | \r | |
100 | //\r | |
101 | // Open the IO Abstraction(s) needed to perform the supported test\r | |
102 | //\r | |
103 | Status = gBS->OpenProtocol (\r | |
104 | Controller,\r | |
105 | &gEfiPciIoProtocolGuid,\r | |
106 | (VOID **) &PciIo,\r | |
107 | This->DriverBindingHandle,\r | |
108 | Controller,\r | |
109 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
110 | );\r | |
111 | if (EFI_ERROR (Status)) {\r | |
112 | return Status;\r | |
113 | }\r | |
114 | //\r | |
115 | // Use the PCI I/O Protocol to see if Controller is a IDE Controller that\r | |
116 | // can be managed by this driver. Read the PCI Configuration Header\r | |
117 | // for this device.\r | |
118 | //\r | |
119 | Status = PciIo->Pci.Read (\r | |
120 | PciIo,\r | |
121 | EfiPciIoWidthUint32,\r | |
122 | 0,\r | |
123 | sizeof (Pci) / sizeof (UINT32),\r | |
124 | &Pci\r | |
125 | );\r | |
126 | if (EFI_ERROR (Status)) {\r | |
127 | gBS->CloseProtocol (\r | |
128 | Controller,\r | |
129 | &gEfiPciIoProtocolGuid,\r | |
130 | This->DriverBindingHandle,\r | |
131 | Controller\r | |
132 | );\r | |
133 | return EFI_UNSUPPORTED;\r | |
134 | }\r | |
135 | \r | |
136 | if (Pci.Hdr.ClassCode[2] != PCI_CLASS_MASS_STORAGE || Pci.Hdr.ClassCode[1] != PCI_CLASS_IDE) {\r | |
137 | \r | |
138 | Status = EFI_UNSUPPORTED;\r | |
139 | }\r | |
140 | \r | |
141 | gBS->CloseProtocol (\r | |
142 | Controller,\r | |
143 | &gEfiPciIoProtocolGuid,\r | |
144 | This->DriverBindingHandle,\r | |
145 | Controller\r | |
146 | );\r | |
147 | \r | |
148 | return Status;\r | |
149 | }\r | |
150 | \r | |
151 | /**\r | |
152 | Create handles for IDE channels specified by RemainingDevicePath.\r | |
153 | Install SCSI Pass Thru Protocol onto each created handle.\r | |
154 | \r | |
155 | (Standard DriverBinding Protocol Start() function)\r | |
156 | \r | |
157 | @return EFI_STATUS\r | |
158 | \r | |
159 | @todo This - add argument and description to function comment\r | |
160 | @todo Controller - add argument and description to function comment\r | |
161 | @todo RemainingDevicePath - add argument and description to function comment\r | |
162 | **/\r | |
163 | EFI_STATUS\r | |
164 | EFIAPI\r | |
165 | AtapiScsiPassThruDriverBindingStart (\r | |
166 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
167 | IN EFI_HANDLE Controller,\r | |
168 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r | |
169 | )\r | |
170 | {\r | |
171 | EFI_STATUS Status;\r | |
172 | EFI_PCI_IO_PROTOCOL *PciIo;\r | |
173 | \r | |
174 | PciIo = NULL;\r | |
175 | Status = gBS->OpenProtocol (\r | |
176 | Controller,\r | |
177 | &gEfiPciIoProtocolGuid,\r | |
178 | (VOID **) &PciIo,\r | |
179 | This->DriverBindingHandle,\r | |
180 | Controller,\r | |
181 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
182 | );\r | |
183 | if (EFI_ERROR (Status)) {\r | |
184 | return Status;\r | |
185 | }\r | |
186 | \r | |
187 | Status = PciIo->Attributes (\r | |
188 | PciIo,\r | |
189 | EfiPciIoAttributeOperationEnable,\r | |
190 | EFI_PCI_IO_ATTRIBUTE_IDE_PRIMARY_IO | EFI_PCI_IO_ATTRIBUTE_IDE_SECONDARY_IO | EFI_PCI_DEVICE_ENABLE,\r | |
191 | NULL\r | |
192 | );\r | |
193 | if (EFI_ERROR (Status)) {\r | |
194 | goto Done;\r | |
195 | }\r | |
196 | \r | |
197 | //\r | |
198 | // Create SCSI Pass Thru instance for the IDE channel.\r | |
199 | //\r | |
200 | Status = RegisterAtapiScsiPassThru (This, Controller, PciIo);\r | |
201 | \r | |
202 | Done:\r | |
203 | if (EFI_ERROR (Status)) {\r | |
204 | if (PciIo) {\r | |
205 | PciIo->Attributes (\r | |
206 | PciIo,\r | |
207 | EfiPciIoAttributeOperationDisable,\r | |
208 | EFI_PCI_IO_ATTRIBUTE_IDE_PRIMARY_IO | EFI_PCI_IO_ATTRIBUTE_IDE_SECONDARY_IO | EFI_PCI_DEVICE_ENABLE,\r | |
209 | NULL\r | |
210 | );\r | |
211 | }\r | |
212 | \r | |
213 | gBS->CloseProtocol (\r | |
214 | Controller,\r | |
215 | &gEfiPciIoProtocolGuid,\r | |
216 | This->DriverBindingHandle,\r | |
217 | Controller\r | |
218 | );\r | |
219 | }\r | |
220 | \r | |
221 | return Status;\r | |
222 | }\r | |
223 | \r | |
224 | /**\r | |
225 | Stop.\r | |
226 | \r | |
227 | (Standard DriverBinding Protocol Stop() function)\r | |
228 | \r | |
229 | @return EFI_STATUS\r | |
230 | \r | |
231 | @todo This - add argument and description to function comment\r | |
232 | @todo Controller - add argument and description to function comment\r | |
233 | @todo NumberOfChildren - add argument and description to function comment\r | |
234 | @todo ChildHandleBuffer - add argument and description to function comment\r | |
235 | @todo EFI_SUCCESS - add return value to function comment\r | |
236 | **/\r | |
237 | EFI_STATUS\r | |
238 | EFIAPI\r | |
239 | AtapiScsiPassThruDriverBindingStop (\r | |
240 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
241 | IN EFI_HANDLE Controller,\r | |
242 | IN UINTN NumberOfChildren,\r | |
243 | IN EFI_HANDLE *ChildHandleBuffer\r | |
244 | )\r | |
245 | {\r | |
246 | EFI_STATUS Status;\r | |
247 | EFI_SCSI_PASS_THRU_PROTOCOL *ScsiPassThru;\r | |
248 | ATAPI_SCSI_PASS_THRU_DEV *AtapiScsiPrivate;\r | |
249 | \r | |
250 | Status = gBS->OpenProtocol (\r | |
251 | Controller,\r | |
252 | &gEfiScsiPassThruProtocolGuid,\r | |
253 | (VOID **) &ScsiPassThru,\r | |
254 | This->DriverBindingHandle,\r | |
255 | Controller,\r | |
256 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
257 | );\r | |
258 | if (EFI_ERROR (Status)) {\r | |
259 | return Status;\r | |
260 | }\r | |
261 | \r | |
262 | AtapiScsiPrivate = ATAPI_SCSI_PASS_THRU_DEV_FROM_THIS (ScsiPassThru);\r | |
263 | \r | |
264 | Status = gBS->UninstallProtocolInterface (\r | |
265 | Controller,\r | |
266 | &gEfiScsiPassThruProtocolGuid,\r | |
267 | &AtapiScsiPrivate->ScsiPassThru\r | |
268 | );\r | |
269 | if (EFI_ERROR (Status)) {\r | |
270 | return Status;\r | |
271 | }\r | |
272 | //\r | |
273 | // Release Pci Io protocol on the controller handle.\r | |
274 | //\r | |
275 | AtapiScsiPrivate->PciIo->Attributes (\r | |
276 | AtapiScsiPrivate->PciIo,\r | |
277 | EfiPciIoAttributeOperationDisable,\r | |
278 | EFI_PCI_IO_ATTRIBUTE_IDE_PRIMARY_IO | EFI_PCI_IO_ATTRIBUTE_IDE_SECONDARY_IO | EFI_PCI_DEVICE_ENABLE,\r | |
279 | NULL\r | |
280 | );\r | |
281 | \r | |
282 | gBS->CloseProtocol (\r | |
283 | Controller,\r | |
284 | &gEfiPciIoProtocolGuid,\r | |
285 | This->DriverBindingHandle,\r | |
286 | Controller\r | |
287 | );\r | |
288 | \r | |
289 | gBS->FreePool (AtapiScsiPrivate);\r | |
290 | \r | |
291 | return EFI_SUCCESS;\r | |
292 | }\r | |
293 | \r | |
294 | /**\r | |
295 | Attaches SCSI Pass Thru Protocol for specified IDE channel.\r | |
296 | \r | |
297 | @param Controller: Parent device handle to the IDE channel.\r | |
298 | @param PciIo: PCI I/O protocol attached on the "Controller".\r | |
299 | \r | |
300 | @return EFI_SUCCESS Always returned unless installing SCSI Pass Thru Protocol failed.\r | |
301 | \r | |
302 | @todo This - add argument and description to function comment\r | |
303 | @todo Controller - add argument and description to function comment\r | |
304 | @todo PciIo - add argument and description to function comment\r | |
305 | @todo EFI_OUT_OF_RESOURCES - add return value to function comment\r | |
306 | **/\r | |
307 | EFI_STATUS\r | |
308 | RegisterAtapiScsiPassThru (\r | |
309 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
310 | IN EFI_HANDLE Controller,\r | |
311 | IN EFI_PCI_IO_PROTOCOL *PciIo\r | |
312 | )\r | |
313 | {\r | |
314 | EFI_STATUS Status;\r | |
315 | ATAPI_SCSI_PASS_THRU_DEV *AtapiScsiPrivate;\r | |
316 | UINT64 Attributes;\r | |
317 | \r | |
318 | AtapiScsiPrivate = AllocateZeroPool (sizeof (ATAPI_SCSI_PASS_THRU_DEV));\r | |
319 | if (AtapiScsiPrivate == NULL) {\r | |
320 | return EFI_OUT_OF_RESOURCES;\r | |
321 | }\r | |
322 | \r | |
323 | Attributes = EFI_PCI_IO_ATTRIBUTE_IDE_PRIMARY_IO | EFI_PCI_IO_ATTRIBUTE_IDE_SECONDARY_IO | EFI_PCI_DEVICE_ENABLE;\r | |
324 | CopyMem (AtapiScsiPrivate->ChannelName, gAtapiChannelString, sizeof (gAtapiChannelString));\r | |
325 | \r | |
326 | //\r | |
327 | // Enable channel\r | |
328 | //\r | |
329 | PciIo->Attributes (PciIo, EfiPciIoAttributeOperationSet, Attributes, NULL);\r | |
330 | \r | |
331 | AtapiScsiPrivate->Signature = ATAPI_SCSI_PASS_THRU_DEV_SIGNATURE;\r | |
332 | AtapiScsiPrivate->Handle = Controller;\r | |
333 | \r | |
334 | //\r | |
335 | // will reset the IoPort inside each API function.\r | |
336 | //\r | |
337 | AtapiScsiPrivate->IoPort = gAtapiIoPortRegisters;\r | |
338 | AtapiScsiPrivate->PciIo = PciIo;\r | |
339 | \r | |
340 | //\r | |
341 | // initialize SCSI Pass Thru Protocol interface\r | |
342 | //\r | |
343 | AtapiScsiPrivate->ScsiPassThru.Mode = &AtapiScsiPrivate->ScsiPassThruMode;\r | |
344 | AtapiScsiPrivate->ScsiPassThru.PassThru = AtapiScsiPassThruFunction;\r | |
345 | AtapiScsiPrivate->ScsiPassThru.GetNextDevice = AtapiScsiPassThruGetNextDevice;\r | |
346 | AtapiScsiPrivate->ScsiPassThru.BuildDevicePath = AtapiScsiPassThruBuildDevicePath;\r | |
347 | AtapiScsiPrivate->ScsiPassThru.GetTargetLun = AtapiScsiPassThruGetTargetLun;\r | |
348 | AtapiScsiPrivate->ScsiPassThru.ResetChannel = AtapiScsiPassThruResetChannel;\r | |
349 | AtapiScsiPrivate->ScsiPassThru.ResetTarget = AtapiScsiPassThruResetTarget;\r | |
350 | \r | |
351 | //\r | |
352 | // Set Mode\r | |
353 | //\r | |
354 | CopyMem (AtapiScsiPrivate->ControllerName, gControllerNameString, sizeof (gControllerNameString));\r | |
355 | \r | |
356 | AtapiScsiPrivate->ScsiPassThruMode.ControllerName = AtapiScsiPrivate->ControllerName;\r | |
357 | AtapiScsiPrivate->ScsiPassThruMode.ChannelName = AtapiScsiPrivate->ChannelName;\r | |
358 | AtapiScsiPrivate->ScsiPassThruMode.AdapterId = 4;\r | |
359 | //\r | |
360 | // non-RAID SCSI controllers should set both physical and logical attributes\r | |
361 | //\r | |
362 | AtapiScsiPrivate->ScsiPassThruMode.Attributes = EFI_SCSI_PASS_THRU_ATTRIBUTES_PHYSICAL | \r | |
363 | EFI_SCSI_PASS_THRU_ATTRIBUTES_LOGICAL;\r | |
364 | AtapiScsiPrivate->ScsiPassThruMode.IoAlign = 0;\r | |
365 | \r | |
366 | //\r | |
367 | // Initialize the LatestTargetId to 0xFFFFFFFF (for the GetNextDevice() call).\r | |
368 | //\r | |
369 | AtapiScsiPrivate->LatestTargetId = 0xFFFFFFFF;\r | |
370 | AtapiScsiPrivate->LatestLun = 0;\r | |
371 | \r | |
372 | Status = gBS->InstallProtocolInterface (\r | |
373 | &Controller,\r | |
374 | &gEfiScsiPassThruProtocolGuid,\r | |
375 | EFI_NATIVE_INTERFACE,\r | |
376 | &AtapiScsiPrivate->ScsiPassThru\r | |
377 | );\r | |
378 | return Status;\r | |
379 | }\r | |
380 | \r | |
381 | /**\r | |
382 | Implements EFI_SCSI_PASS_THRU_PROTOCOL.PassThru() function.\r | |
383 | \r | |
384 | @param This The EFI_SCSI_PASS_THRU_PROTOCOL instance.\r | |
385 | @param Target The Target ID of the ATAPI device to send the SCSI\r | |
386 | Request Packet. To ATAPI devices attached on an IDE\r | |
387 | Channel, Target ID 0 indicates Master device;Target\r | |
388 | ID 1 indicates Slave device.\r | |
389 | @param Lun The LUN of the ATAPI device to send the SCSI Request\r | |
390 | Packet. To the ATAPI device, Lun is always 0.\r | |
391 | @param Packet The SCSI Request Packet to send to the ATAPI device\r | |
392 | specified by Target and Lun.\r | |
393 | @param Event If non-blocking I/O is not supported then Event is ignored,\r | |
394 | and blocking I/O is performed.<br>\r | |
395 | If Event is NULL, then blocking I/O is performed.<br>\r | |
396 | If Event is not NULL and non blocking I/O is supported,\r | |
397 | then non-blocking I/O is performed, and Event will be signaled\r | |
398 | when the SCSI Request Packet completes.\r | |
399 | \r | |
400 | @todo This - add argument and description to function comment\r | |
401 | @todo EFI_INVALID_PARAMETER - add return value to function comment\r | |
402 | @todo EFI_SUCCESS - add return value to function comment\r | |
403 | **/\r | |
404 | EFI_STATUS\r | |
405 | EFIAPI\r | |
406 | AtapiScsiPassThruFunction (\r | |
407 | IN EFI_SCSI_PASS_THRU_PROTOCOL *This,\r | |
408 | IN UINT32 Target,\r | |
409 | IN UINT64 Lun,\r | |
410 | IN OUT EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *Packet,\r | |
411 | IN EFI_EVENT Event OPTIONAL\r | |
412 | )\r | |
413 | {\r | |
414 | ATAPI_SCSI_PASS_THRU_DEV *AtapiScsiPrivate;\r | |
415 | EFI_STATUS Status;\r | |
416 | \r | |
417 | AtapiScsiPrivate = ATAPI_SCSI_PASS_THRU_DEV_FROM_THIS (This);\r | |
418 | \r | |
419 | //\r | |
420 | // Target is not allowed beyond MAX_TARGET_ID\r | |
421 | //\r | |
422 | if (Target > MAX_TARGET_ID) {\r | |
423 | return EFI_INVALID_PARAMETER;\r | |
424 | }\r | |
425 | \r | |
426 | //\r | |
427 | // check the data fields in Packet parameter.\r | |
428 | //\r | |
429 | Status = CheckSCSIRequestPacket (Packet);\r | |
430 | if (EFI_ERROR (Status)) {\r | |
431 | return Status;\r | |
432 | }\r | |
433 | \r | |
434 | //\r | |
435 | // If Request Packet targets at the IDE channel itself,\r | |
436 | // do nothing.\r | |
437 | //\r | |
438 | if (Target == This->Mode->AdapterId) {\r | |
439 | Packet->TransferLength = 0;\r | |
440 | return EFI_SUCCESS;\r | |
441 | }\r | |
442 | \r | |
443 | //\r | |
444 | // According to Target ID, reset the Atapi I/O Register mapping\r | |
445 | // (Target Id in [0,1] area, using gAtapiIoPortRegisters[0],\r | |
446 | // Target Id in [2,3] area, using gAtapiIoPortRegisters[1]\r | |
447 | //\r | |
448 | if ((Target / 2) == 0) {\r | |
449 | AtapiScsiPrivate->IoPort = &gAtapiIoPortRegisters[0];\r | |
450 | } else {\r | |
451 | AtapiScsiPrivate->IoPort = &gAtapiIoPortRegisters[1];\r | |
452 | }\r | |
453 | \r | |
454 | //\r | |
455 | // the ATAPI SCSI interface does not support non-blocking I/O\r | |
456 | // ignore the Event parameter\r | |
457 | //\r | |
458 | // Performs blocking I/O.\r | |
459 | //\r | |
460 | Status = SubmitBlockingIoCommand (AtapiScsiPrivate, Target, Packet);\r | |
461 | return Status;\r | |
462 | }\r | |
463 | \r | |
464 | /**\r | |
465 | Used to retrieve the list of legal Target IDs for SCSI devices \r | |
466 | on a SCSI channel.\r | |
467 | \r | |
468 | @param This Protocol instance pointer.\r | |
469 | @param Target On input, a pointer to the Target ID of a SCSI\r | |
470 | device present on the SCSI channel. On output,\r | |
471 | a pointer to the Target ID of the next SCSI device\r | |
472 | present on a SCSI channel. An input value of\r | |
473 | 0xFFFFFFFF retrieves the Target ID of the first\r | |
474 | SCSI device present on a SCSI channel.\r | |
475 | @param Lun On input, a pointer to the LUN of a SCSI device\r | |
476 | present on the SCSI channel. On output, a pointer\r | |
477 | to the LUN of the next SCSI device present on\r | |
478 | a SCSI channel.\r | |
479 | \r | |
480 | @retval EFI_SUCCESS The Target ID and Lun of the next SCSI device\r | |
481 | on the SCSI channel was returned in Target and Lun.\r | |
482 | @retval EFI_NOT_FOUND There are no more SCSI devices on this SCSI channel.\r | |
483 | @retval EFI_INVALID_PARAMETER Target is not 0xFFFFFFFF,and Target and Lun were not\r | |
484 | returned on a previous call to GetNextDevice().\r | |
485 | \r | |
486 | **/\r | |
487 | EFI_STATUS\r | |
488 | EFIAPI\r | |
489 | AtapiScsiPassThruGetNextDevice (\r | |
490 | IN EFI_SCSI_PASS_THRU_PROTOCOL *This,\r | |
491 | IN OUT UINT32 *Target,\r | |
492 | IN OUT UINT64 *Lun\r | |
493 | )\r | |
494 | {\r | |
495 | ATAPI_SCSI_PASS_THRU_DEV *AtapiScsiPrivate;\r | |
496 | \r | |
497 | //\r | |
498 | // Retrieve Device Private Data Structure.\r | |
499 | //\r | |
500 | AtapiScsiPrivate = ATAPI_SCSI_PASS_THRU_DEV_FROM_THIS (This);\r | |
501 | \r | |
502 | //\r | |
503 | // Check whether Target is valid.\r | |
504 | //\r | |
505 | if (Target == NULL || Lun == NULL) {\r | |
506 | return EFI_INVALID_PARAMETER;\r | |
507 | }\r | |
508 | \r | |
509 | if ((*Target != 0xFFFFFFFF) &&\r | |
510 | ((*Target != AtapiScsiPrivate->LatestTargetId) ||\r | |
511 | (*Lun != AtapiScsiPrivate->LatestLun))) {\r | |
512 | return EFI_INVALID_PARAMETER;\r | |
513 | }\r | |
514 | \r | |
515 | if (*Target == MAX_TARGET_ID) {\r | |
516 | return EFI_NOT_FOUND;\r | |
517 | }\r | |
518 | \r | |
519 | if (*Target == 0xFFFFFFFF) {\r | |
520 | *Target = 0;\r | |
521 | } else {\r | |
522 | *Target = AtapiScsiPrivate->LatestTargetId + 1;\r | |
523 | }\r | |
524 | \r | |
525 | *Lun = 0;\r | |
526 | \r | |
527 | //\r | |
528 | // Update the LatestTargetId.\r | |
529 | //\r | |
530 | AtapiScsiPrivate->LatestTargetId = *Target;\r | |
531 | AtapiScsiPrivate->LatestLun = *Lun;\r | |
532 | \r | |
533 | return EFI_SUCCESS;\r | |
534 | \r | |
535 | }\r | |
536 | \r | |
537 | /**\r | |
538 | Used to allocate and build a device path node for a SCSI device \r | |
539 | on a SCSI channel. Would not build device path for a SCSI Host Controller.\r | |
540 | \r | |
541 | @param This Protocol instance pointer.\r | |
542 | @param Target The Target ID of the SCSI device for which\r | |
543 | a device path node is to be allocated and built.\r | |
544 | @param Lun The LUN of the SCSI device for which a device\r | |
545 | path node is to be allocated and built.\r | |
546 | @param DevicePath A pointer to a single device path node that\r | |
547 | describes the SCSI device specified by\r | |
548 | Target and Lun. This function is responsible\r | |
549 | for allocating the buffer DevicePath with the boot\r | |
550 | service AllocatePool(). It is the caller's\r | |
551 | responsibility to free DevicePath when the caller\r | |
552 | is finished with DevicePath.\r | |
553 | \r | |
554 | @retval EFI_SUCCESS The device path node that describes the SCSI device\r | |
555 | specified by Target and Lun was allocated and\r | |
556 | returned in DevicePath.\r | |
557 | @retval EFI_NOT_FOUND The SCSI devices specified by Target and Lun does\r | |
558 | not exist on the SCSI channel.\r | |
559 | @retval EFI_INVALID_PARAMETER DevicePath is NULL.\r | |
560 | @retval EFI_OUT_OF_RESOURCES There are not enough resources to allocate\r | |
561 | DevicePath.\r | |
562 | \r | |
563 | **/\r | |
564 | EFI_STATUS\r | |
565 | EFIAPI\r | |
566 | AtapiScsiPassThruBuildDevicePath (\r | |
567 | IN EFI_SCSI_PASS_THRU_PROTOCOL *This,\r | |
568 | IN UINT32 Target,\r | |
569 | IN UINT64 Lun,\r | |
570 | IN OUT EFI_DEVICE_PATH_PROTOCOL **DevicePath\r | |
571 | )\r | |
572 | {\r | |
573 | EFI_DEV_PATH *Node;\r | |
574 | \r | |
575 | //\r | |
576 | // Validate parameters passed in.\r | |
577 | //\r | |
578 | \r | |
579 | if (DevicePath == NULL) {\r | |
580 | return EFI_INVALID_PARAMETER;\r | |
581 | }\r | |
582 | \r | |
583 | //\r | |
584 | // can not build device path for the SCSI Host Controller.\r | |
585 | //\r | |
586 | if ((Target > (MAX_TARGET_ID - 1)) || (Lun != 0)) {\r | |
587 | return EFI_NOT_FOUND;\r | |
588 | }\r | |
589 | \r | |
590 | Node = AllocateZeroPool (sizeof (EFI_DEV_PATH));\r | |
591 | if (Node == NULL) {\r | |
592 | return EFI_OUT_OF_RESOURCES;\r | |
593 | }\r | |
594 | \r | |
595 | Node->DevPath.Type = MESSAGING_DEVICE_PATH;\r | |
596 | Node->DevPath.SubType = MSG_ATAPI_DP;\r | |
597 | SetDevicePathNodeLength (&Node->DevPath, sizeof (ATAPI_DEVICE_PATH));\r | |
598 | \r | |
599 | Node->Atapi.PrimarySecondary = (UINT8) (Target / 2);\r | |
600 | Node->Atapi.SlaveMaster = (UINT8) (Target % 2);\r | |
601 | Node->Atapi.Lun = (UINT16) Lun;\r | |
602 | \r | |
603 | *DevicePath = (EFI_DEVICE_PATH_PROTOCOL *) Node;\r | |
604 | \r | |
605 | return EFI_SUCCESS;\r | |
606 | }\r | |
607 | \r | |
608 | /**\r | |
609 | Used to translate a device path node to a Target ID and LUN.\r | |
610 | \r | |
611 | @param This Protocol instance pointer.\r | |
612 | @param DevicePath A pointer to the device path node that\r | |
613 | describes a SCSI device on the SCSI channel.\r | |
614 | @param Target A pointer to the Target ID of a SCSI device\r | |
615 | on the SCSI channel.\r | |
616 | @param Lun A pointer to the LUN of a SCSI device on\r | |
617 | the SCSI channel.\r | |
618 | \r | |
619 | @retval EFI_SUCCESS DevicePath was successfully translated to a\r | |
620 | Target ID and LUN, and they were returned\r | |
621 | in Target and Lun.\r | |
622 | @retval EFI_INVALID_PARAMETER DevicePath is NULL.\r | |
623 | @retval EFI_INVALID_PARAMETER Target is NULL.\r | |
624 | @retval EFI_INVALID_PARAMETER Lun is NULL.\r | |
625 | @retval EFI_UNSUPPORTED This driver does not support the device path\r | |
626 | node type in DevicePath.\r | |
627 | @retval EFI_NOT_FOUND A valid translation from DevicePath to a\r | |
628 | Target ID and LUN does not exist.\r | |
629 | \r | |
630 | **/\r | |
631 | EFI_STATUS\r | |
632 | EFIAPI\r | |
633 | AtapiScsiPassThruGetTargetLun (\r | |
634 | IN EFI_SCSI_PASS_THRU_PROTOCOL *This,\r | |
635 | IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,\r | |
636 | OUT UINT32 *Target,\r | |
637 | OUT UINT64 *Lun\r | |
638 | )\r | |
639 | {\r | |
640 | EFI_DEV_PATH *Node;\r | |
641 | \r | |
642 | //\r | |
643 | // Validate parameters passed in.\r | |
644 | //\r | |
645 | if (DevicePath == NULL || Target == NULL || Lun == NULL) {\r | |
646 | return EFI_INVALID_PARAMETER;\r | |
647 | }\r | |
648 | \r | |
649 | //\r | |
650 | // Check whether the DevicePath belongs to SCSI_DEVICE_PATH\r | |
651 | //\r | |
652 | if ((DevicePath->Type != MESSAGING_DEVICE_PATH) ||\r | |
653 | (DevicePath->SubType != MSG_ATAPI_DP) ||\r | |
654 | (DevicePathNodeLength(DevicePath) != sizeof(ATAPI_DEVICE_PATH))) {\r | |
655 | return EFI_UNSUPPORTED;\r | |
656 | }\r | |
657 | \r | |
658 | Node = (EFI_DEV_PATH *) DevicePath;\r | |
659 | \r | |
660 | *Target = Node->Atapi.PrimarySecondary * 2 + Node->Atapi.SlaveMaster;\r | |
661 | *Lun = Node->Atapi.Lun;\r | |
662 | \r | |
663 | if (*Target > (MAX_TARGET_ID - 1) || *Lun != 0) {\r | |
664 | return EFI_NOT_FOUND;\r | |
665 | }\r | |
666 | \r | |
667 | return EFI_SUCCESS;\r | |
668 | }\r | |
669 | \r | |
670 | /**\r | |
671 | Resets a SCSI channel.This operation resets all the \r | |
672 | SCSI devices connected to the SCSI channel.\r | |
673 | \r | |
674 | @param This Protocol instance pointer.\r | |
675 | \r | |
676 | @retval EFI_SUCCESS The SCSI channel was reset.\r | |
677 | @retval EFI_UNSUPPORTED The SCSI channel does not support\r | |
678 | a channel reset operation.\r | |
679 | @retval EFI_DEVICE_ERROR A device error occurred while\r | |
680 | attempting to reset the SCSI channel.\r | |
681 | @retval EFI_TIMEOUT A timeout occurred while attempting\r | |
682 | to reset the SCSI channel.\r | |
683 | \r | |
684 | **/\r | |
685 | EFI_STATUS\r | |
686 | EFIAPI\r | |
687 | AtapiScsiPassThruResetChannel (\r | |
688 | IN EFI_SCSI_PASS_THRU_PROTOCOL *This\r | |
689 | )\r | |
690 | {\r | |
691 | UINT8 DeviceControlValue;\r | |
692 | ATAPI_SCSI_PASS_THRU_DEV *AtapiScsiPrivate;\r | |
693 | UINT8 Index;\r | |
694 | \r | |
695 | AtapiScsiPrivate = ATAPI_SCSI_PASS_THRU_DEV_FROM_THIS (This);\r | |
696 | \r | |
697 | //\r | |
698 | // Reset both Primary channel and Secondary channel.\r | |
699 | // so, the IoPort pointer must point to the right I/O Register group\r | |
700 | //\r | |
701 | for (Index = 0; Index < 2; Index++) {\r | |
702 | //\r | |
703 | // Reset\r | |
704 | //\r | |
705 | AtapiScsiPrivate->IoPort = &gAtapiIoPortRegisters[Index];\r | |
706 | \r | |
707 | DeviceControlValue = 0;\r | |
708 | //\r | |
709 | // set SRST bit to initiate soft reset\r | |
710 | //\r | |
711 | DeviceControlValue |= SRST;\r | |
712 | //\r | |
713 | // disable Interrupt\r | |
714 | //\r | |
715 | DeviceControlValue |= bit (1);\r | |
716 | WritePortB (\r | |
717 | AtapiScsiPrivate->PciIo,\r | |
718 | AtapiScsiPrivate->IoPort->Alt.DeviceControl,\r | |
719 | DeviceControlValue\r | |
720 | );\r | |
721 | \r | |
722 | //\r | |
723 | // Wait 10us\r | |
724 | //\r | |
725 | gBS->Stall (10);\r | |
726 | \r | |
727 | //\r | |
728 | // Clear SRST bit\r | |
729 | // 0xfb:1111,1011\r | |
730 | //\r | |
731 | DeviceControlValue &= 0xfb;\r | |
732 | \r | |
733 | WritePortB (AtapiScsiPrivate->PciIo, AtapiScsiPrivate->IoPort->Alt.DeviceControl, DeviceControlValue);\r | |
734 | \r | |
735 | //\r | |
736 | // slave device needs at most 31s to clear BSY\r | |
737 | //\r | |
738 | if (StatusWaitForBSYClear (AtapiScsiPrivate, 31000) == EFI_TIMEOUT) {\r | |
739 | return EFI_DEVICE_ERROR;\r | |
740 | }\r | |
741 | }\r | |
742 | \r | |
743 | return EFI_SUCCESS;\r | |
744 | }\r | |
745 | \r | |
746 | /**\r | |
747 | Resets a SCSI device that is connected to a SCSI channel.\r | |
748 | \r | |
749 | @param This Protocol instance pointer.\r | |
750 | @param Target The Target ID of the SCSI device to reset.\r | |
751 | @param Lun The LUN of the SCSI device to reset.\r | |
752 | \r | |
753 | @retval EFI_SUCCESS The SCSI device specified by Target and\r | |
754 | Lun was reset.\r | |
755 | @retval EFI_UNSUPPORTED The SCSI channel does not support a target\r | |
756 | reset operation.\r | |
757 | @retval EFI_INVALID_PARAMETER Target or Lun are invalid.\r | |
758 | @retval EFI_DEVICE_ERROR A device error occurred while attempting\r | |
759 | to reset the SCSI device specified by Target\r | |
760 | and Lun.\r | |
761 | @retval EFI_TIMEOUT A timeout occurred while attempting to reset\r | |
762 | the SCSI device specified by Target and Lun.\r | |
763 | \r | |
764 | **/\r | |
765 | EFI_STATUS\r | |
766 | EFIAPI\r | |
767 | AtapiScsiPassThruResetTarget (\r | |
768 | IN EFI_SCSI_PASS_THRU_PROTOCOL *This,\r | |
769 | IN UINT32 Target,\r | |
770 | IN UINT64 Lun\r | |
771 | )\r | |
772 | {\r | |
773 | ATAPI_SCSI_PASS_THRU_DEV *AtapiScsiPrivate;\r | |
774 | UINT8 Command;\r | |
775 | UINT8 DeviceSelect;\r | |
776 | \r | |
777 | AtapiScsiPrivate = ATAPI_SCSI_PASS_THRU_DEV_FROM_THIS (This);\r | |
778 | \r | |
779 | if (Target > MAX_TARGET_ID) {\r | |
780 | return EFI_INVALID_PARAMETER;\r | |
781 | }\r | |
782 | //\r | |
783 | // Directly return EFI_SUCCESS if want to reset the host controller\r | |
784 | //\r | |
785 | if (Target == This->Mode->AdapterId) {\r | |
786 | return EFI_SUCCESS;\r | |
787 | }\r | |
788 | \r | |
789 | //\r | |
790 | // According to Target ID, reset the Atapi I/O Register mapping\r | |
791 | // (Target Id in [0,1] area, using gAtapiIoPortRegisters[0],\r | |
792 | // Target Id in [2,3] area, using gAtapiIoPortRegisters[1]\r | |
793 | //\r | |
794 | if ((Target / 2) == 0) {\r | |
795 | AtapiScsiPrivate->IoPort = &gAtapiIoPortRegisters[0];\r | |
796 | } else {\r | |
797 | AtapiScsiPrivate->IoPort = &gAtapiIoPortRegisters[1];\r | |
798 | }\r | |
799 | \r | |
800 | //\r | |
801 | // for ATAPI device, no need to wait DRDY ready after device selecting.\r | |
802 | //\r | |
803 | // bit7 and bit5 are both set to 1 for backward compatibility\r | |
804 | //\r | |
805 | DeviceSelect = (UINT8) (((bit (7) | bit (5)) | (Target << 4)));\r | |
806 | WritePortB (AtapiScsiPrivate->PciIo, AtapiScsiPrivate->IoPort->Head, DeviceSelect);\r | |
807 | \r | |
808 | Command = ATAPI_SOFT_RESET_CMD;\r | |
809 | WritePortB (AtapiScsiPrivate->PciIo, AtapiScsiPrivate->IoPort->Reg.Command, Command);\r | |
810 | \r | |
811 | //\r | |
812 | // BSY clear is the only status return to the host by the device\r | |
813 | // when reset is complete.\r | |
814 | // slave device needs at most 31s to clear BSY\r | |
815 | //\r | |
816 | if (EFI_ERROR (StatusWaitForBSYClear (AtapiScsiPrivate, 31000))) {\r | |
817 | return EFI_DEVICE_ERROR;\r | |
818 | }\r | |
819 | \r | |
820 | //\r | |
821 | // stall 5 seconds to make the device status stable\r | |
822 | //\r | |
823 | gBS->Stall (5000000);\r | |
824 | \r | |
825 | return EFI_SUCCESS;\r | |
826 | }\r | |
827 | \r | |
828 | \r | |
829 | /**\r | |
830 | Checks the parameters in the SCSI Request Packet to make sure\r | |
831 | they are valid for a SCSI Pass Thru request.\r | |
832 | \r | |
833 | @todo function comment is missing 'Routine Description:'\r | |
834 | @todo function comment is missing 'Arguments:'\r | |
835 | @todo function comment is missing 'Returns:'\r | |
836 | @todo Packet - add argument and description to function comment\r | |
837 | @todo EFI_INVALID_PARAMETER - add return value to function comment\r | |
838 | @todo EFI_INVALID_PARAMETER - add return value to function comment\r | |
839 | @todo EFI_INVALID_PARAMETER - add return value to function comment\r | |
840 | @todo EFI_UNSUPPORTED - add return value to function comment\r | |
841 | @todo EFI_SUCCESS - add return value to function comment\r | |
842 | **/\r | |
843 | EFI_STATUS\r | |
844 | CheckSCSIRequestPacket (\r | |
845 | EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *Packet\r | |
846 | )\r | |
847 | {\r | |
848 | if (Packet == NULL) {\r | |
849 | return EFI_INVALID_PARAMETER;\r | |
850 | }\r | |
851 | \r | |
852 | if (!ValidCdbLength (Packet->CdbLength)) {\r | |
853 | return EFI_INVALID_PARAMETER;\r | |
854 | }\r | |
855 | \r | |
856 | if (Packet->Cdb == NULL) {\r | |
857 | return EFI_INVALID_PARAMETER;\r | |
858 | }\r | |
859 | \r | |
860 | //\r | |
861 | // Checks whether the request command is supported.\r | |
862 | //\r | |
863 | if (!IsCommandValid (Packet)) {\r | |
864 | return EFI_UNSUPPORTED;\r | |
865 | }\r | |
866 | \r | |
867 | return EFI_SUCCESS;\r | |
868 | }\r | |
869 | \r | |
870 | /**\r | |
871 | Checks the requested SCSI command: \r | |
872 | Is it supported by this driver?\r | |
873 | Is the Data transfer direction reasonable?\r | |
874 | \r | |
875 | @todo function comment is missing 'Routine Description:'\r | |
876 | @todo function comment is missing 'Arguments:'\r | |
877 | @todo function comment is missing 'Returns:'\r | |
878 | @todo Packet - add argument and description to function comment\r | |
879 | **/\r | |
880 | BOOLEAN\r | |
881 | IsCommandValid (\r | |
882 | EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *Packet\r | |
883 | )\r | |
884 | {\r | |
885 | UINT8 Index;\r | |
886 | UINT8 *OpCode;\r | |
887 | \r | |
888 | OpCode = (UINT8 *) (Packet->Cdb);\r | |
889 | \r | |
890 | for (Index = 0; CompareMem (&gSupportedATAPICommands[Index], &gEndTable, sizeof (SCSI_COMMAND_SET)); Index++) {\r | |
891 | \r | |
892 | if (*OpCode == gSupportedATAPICommands[Index].OpCode) {\r | |
893 | //\r | |
894 | // Check whether the requested Command is supported by this driver\r | |
895 | //\r | |
896 | if (Packet->DataDirection == DataIn) {\r | |
897 | //\r | |
898 | // Check whether the requested data direction conforms to\r | |
899 | // what it should be.\r | |
900 | //\r | |
901 | if (gSupportedATAPICommands[Index].Direction == DataOut) {\r | |
902 | return FALSE;\r | |
903 | }\r | |
904 | }\r | |
905 | \r | |
906 | if (Packet->DataDirection == DataOut) {\r | |
907 | //\r | |
908 | // Check whether the requested data direction conforms to\r | |
909 | // what it should be.\r | |
910 | //\r | |
911 | if (gSupportedATAPICommands[Index].Direction == DataIn) {\r | |
912 | return FALSE;\r | |
913 | }\r | |
914 | }\r | |
915 | \r | |
916 | return TRUE;\r | |
917 | }\r | |
918 | }\r | |
919 | \r | |
920 | return FALSE;\r | |
921 | }\r | |
922 | \r | |
923 | /**\r | |
924 | Performs blocking I/O request.\r | |
925 | \r | |
926 | @param AtapiScsiPrivate Private data structure for the specified channel.\r | |
927 | @param Target The Target ID of the ATAPI device to send the SCSI\r | |
928 | Request Packet. To ATAPI devices attached on an IDE\r | |
929 | Channel, Target ID 0 indicates Master device;Target\r | |
930 | ID 1 indicates Slave device.\r | |
931 | @param Packet The SCSI Request Packet to send to the ATAPI device\r | |
932 | specified by Target.\r | |
933 | \r | |
934 | @todo AtapiScsiPrivate - add argument and description to function comment\r | |
935 | **/\r | |
936 | EFI_STATUS\r | |
937 | SubmitBlockingIoCommand (\r | |
938 | ATAPI_SCSI_PASS_THRU_DEV *AtapiScsiPrivate,\r | |
939 | UINT32 Target,\r | |
940 | EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *Packet\r | |
941 | )\r | |
942 | {\r | |
943 | UINT8 PacketCommand[12];\r | |
944 | UINT64 TimeoutInMicroSeconds;\r | |
945 | EFI_STATUS PacketCommandStatus;\r | |
946 | \r | |
947 | //\r | |
948 | // Fill ATAPI Command Packet according to CDB\r | |
949 | //\r | |
950 | ZeroMem (&PacketCommand, 12);\r | |
951 | CopyMem (&PacketCommand, Packet->Cdb, Packet->CdbLength);\r | |
952 | \r | |
953 | //\r | |
954 | // Timeout is 100ns unit, convert it to 1000ns (1us) unit.\r | |
955 | //\r | |
956 | TimeoutInMicroSeconds = DivU64x32 (Packet->Timeout, (UINT32) 10);\r | |
957 | \r | |
958 | //\r | |
959 | // Submit ATAPI Command Packet\r | |
960 | //\r | |
961 | PacketCommandStatus = AtapiPacketCommand (\r | |
962 | AtapiScsiPrivate,\r | |
963 | Target,\r | |
964 | PacketCommand,\r | |
965 | Packet->DataBuffer,\r | |
966 | &(Packet->TransferLength),\r | |
967 | (DATA_DIRECTION) Packet->DataDirection,\r | |
968 | TimeoutInMicroSeconds\r | |
969 | );\r | |
970 | if (!EFI_ERROR (PacketCommandStatus) || (Packet->SenseData == NULL)) {\r | |
971 | Packet->SenseDataLength = 0;\r | |
972 | return PacketCommandStatus;\r | |
973 | }\r | |
974 | //\r | |
975 | // Return SenseData if PacketCommandStatus matches\r | |
976 | // the following return codes.\r | |
977 | //\r | |
978 | if ((PacketCommandStatus == EFI_WARN_BUFFER_TOO_SMALL) ||\r | |
979 | (PacketCommandStatus == EFI_DEVICE_ERROR) ||\r | |
980 | (PacketCommandStatus == EFI_TIMEOUT)) {\r | |
981 | \r | |
982 | //\r | |
983 | // avoid submit request sense command continuously.\r | |
984 | //\r | |
985 | if (PacketCommand[0] == OP_REQUEST_SENSE) {\r | |
986 | Packet->SenseDataLength = 0;\r | |
987 | return PacketCommandStatus;\r | |
988 | }\r | |
989 | \r | |
990 | RequestSenseCommand (\r | |
991 | AtapiScsiPrivate,\r | |
992 | Target,\r | |
993 | Packet->Timeout,\r | |
994 | Packet->SenseData,\r | |
995 | &Packet->SenseDataLength\r | |
996 | );\r | |
997 | }\r | |
998 | \r | |
999 | return PacketCommandStatus;\r | |
1000 | }\r | |
1001 | \r | |
1002 | /**\r | |
1003 | RequestSenseCommand\r | |
1004 | \r | |
1005 | @param AtapiScsiPrivate\r | |
1006 | @param Target\r | |
1007 | @param Timeout\r | |
1008 | @param SenseData\r | |
1009 | @param SenseDataLength\r | |
1010 | \r | |
1011 | @todo Add function description\r | |
1012 | @todo AtapiScsiPrivate TODO: add argument description\r | |
1013 | @todo Target TODO: add argument description\r | |
1014 | @todo Timeout TODO: add argument description\r | |
1015 | @todo SenseData TODO: add argument description\r | |
1016 | @todo SenseDataLength TODO: add argument description\r | |
1017 | @todo add return values\r | |
1018 | **/\r | |
1019 | EFI_STATUS\r | |
1020 | RequestSenseCommand (\r | |
1021 | ATAPI_SCSI_PASS_THRU_DEV *AtapiScsiPrivate,\r | |
1022 | UINT32 Target,\r | |
1023 | UINT64 Timeout,\r | |
1024 | VOID *SenseData,\r | |
1025 | UINT8 *SenseDataLength\r | |
1026 | )\r | |
1027 | {\r | |
1028 | EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET Packet;\r | |
1029 | UINT8 Cdb[12];\r | |
1030 | EFI_STATUS Status;\r | |
1031 | \r | |
1032 | ZeroMem (&Packet, sizeof (EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET));\r | |
1033 | ZeroMem (Cdb, 12);\r | |
1034 | \r | |
1035 | Cdb[0] = OP_REQUEST_SENSE;\r | |
1036 | Cdb[4] = (UINT8) (*SenseDataLength);\r | |
1037 | \r | |
1038 | Packet.Timeout = Timeout;\r | |
1039 | Packet.DataBuffer = SenseData;\r | |
1040 | Packet.SenseData = NULL;\r | |
1041 | Packet.Cdb = Cdb;\r | |
1042 | Packet.TransferLength = *SenseDataLength;\r | |
1043 | Packet.CdbLength = 12;\r | |
1044 | Packet.DataDirection = DataIn;\r | |
1045 | \r | |
1046 | Status = SubmitBlockingIoCommand (AtapiScsiPrivate, Target, &Packet);\r | |
1047 | *SenseDataLength = (UINT8) (Packet.TransferLength);\r | |
1048 | return Status;\r | |
1049 | }\r | |
1050 | \r | |
1051 | /**\r | |
1052 | Submits ATAPI command packet to the specified ATAPI device.\r | |
1053 | \r | |
1054 | @param AtapiScsiPrivate: Private data structure for the specified channel.\r | |
1055 | @param Target: The Target ID of the ATAPI device to send the SCSI\r | |
1056 | Request Packet. To ATAPI devices attached on an IDE\r | |
1057 | Channel, Target ID 0 indicates Master device;Target\r | |
1058 | ID 1 indicates Slave device.\r | |
1059 | @param PacketCommand: Points to the ATAPI command packet.\r | |
1060 | @param Buffer: Points to the transferred data.\r | |
1061 | @param ByteCount: When input,indicates the buffer size; when output,\r | |
1062 | indicates the actually transferred data size.\r | |
1063 | @param Direction: Indicates the data transfer direction.\r | |
1064 | @param TimeoutInMicroSeconds: The timeout, in micro second units,\r | |
1065 | to use for the execution of this ATAPI command.\r | |
1066 | A TimeoutInMicroSeconds value of 0 means that\r | |
1067 | this function will wait indefinitely for the ATAPI\r | |
1068 | command to execute.\r | |
1069 | <P>\r | |
1070 | If TimeoutInMicroSeconds is greater than zero, then\r | |
1071 | this function will return EFI_TIMEOUT if the time\r | |
1072 | required to execute the ATAPI command is greater\r | |
1073 | than TimeoutInMicroSeconds.\r | |
1074 | </P>\r | |
1075 | \r | |
1076 | @todo AtapiScsiPrivate - add argument and description to function comment\r | |
1077 | @todo PacketCommand - add argument and description to function comment\r | |
1078 | @todo Buffer - add argument and description to function comment\r | |
1079 | @todo ByteCount - add argument and description to function comment\r | |
1080 | @todo Direction - add argument and description to function comment\r | |
1081 | **/\r | |
1082 | EFI_STATUS\r | |
1083 | AtapiPacketCommand (\r | |
1084 | ATAPI_SCSI_PASS_THRU_DEV *AtapiScsiPrivate,\r | |
1085 | UINT32 Target,\r | |
1086 | UINT8 *PacketCommand,\r | |
1087 | VOID *Buffer,\r | |
1088 | UINT32 *ByteCount,\r | |
1089 | DATA_DIRECTION Direction,\r | |
1090 | UINT64 TimeoutInMicroSeconds\r | |
1091 | )\r | |
1092 | {\r | |
1093 | \r | |
1094 | UINT16 *CommandIndex;\r | |
1095 | UINT8 Count;\r | |
1096 | EFI_STATUS Status;\r | |
1097 | \r | |
1098 | //\r | |
1099 | // Set all the command parameters by fill related registers.\r | |
1100 | // Before write to all the following registers, BSY and DRQ must be 0.\r | |
1101 | //\r | |
1102 | Status = StatusDRQClear (AtapiScsiPrivate, TimeoutInMicroSeconds);\r | |
1103 | if (EFI_ERROR (Status)) {\r | |
1104 | if (Status == EFI_ABORTED) {\r | |
1105 | Status = EFI_DEVICE_ERROR;\r | |
1106 | }\r | |
1107 | \r | |
1108 | *ByteCount = 0;\r | |
1109 | return Status;\r | |
1110 | }\r | |
1111 | //\r | |
1112 | // Select device via Device/Head Register.\r | |
1113 | // "Target = 0" indicates device 0; "Target = 1" indicates device 1\r | |
1114 | //\r | |
1115 | WritePortB (\r | |
1116 | AtapiScsiPrivate->PciIo,\r | |
1117 | AtapiScsiPrivate->IoPort->Head,\r | |
1118 | (UINT8) ((Target << 4) | DEFAULT_CMD) // DEFAULT_CMD: 0xa0 (1010,0000)\r | |
1119 | );\r | |
1120 | \r | |
1121 | //\r | |
1122 | // No OVL; No DMA (by setting feature register)\r | |
1123 | //\r | |
1124 | WritePortB (\r | |
1125 | AtapiScsiPrivate->PciIo,\r | |
1126 | AtapiScsiPrivate->IoPort->Reg1.Feature,\r | |
1127 | 0x00\r | |
1128 | );\r | |
1129 | \r | |
1130 | //\r | |
1131 | // set the transfersize to MAX_ATAPI_BYTE_COUNT to let the device\r | |
1132 | // determine how much data should be transfered.\r | |
1133 | //\r | |
1134 | WritePortB (\r | |
1135 | AtapiScsiPrivate->PciIo,\r | |
1136 | AtapiScsiPrivate->IoPort->CylinderLsb,\r | |
1137 | (UINT8) (MAX_ATAPI_BYTE_COUNT & 0x00ff)\r | |
1138 | );\r | |
1139 | WritePortB (\r | |
1140 | AtapiScsiPrivate->PciIo,\r | |
1141 | AtapiScsiPrivate->IoPort->CylinderMsb,\r | |
1142 | (UINT8) (MAX_ATAPI_BYTE_COUNT >> 8)\r | |
1143 | );\r | |
1144 | \r | |
1145 | //\r | |
1146 | // DEFAULT_CTL:0x0a (0000,1010)\r | |
1147 | // Disable interrupt\r | |
1148 | //\r | |
1149 | WritePortB (\r | |
1150 | AtapiScsiPrivate->PciIo,\r | |
1151 | AtapiScsiPrivate->IoPort->Alt.DeviceControl,\r | |
1152 | DEFAULT_CTL\r | |
1153 | );\r | |
1154 | \r | |
1155 | //\r | |
1156 | // Send Packet command to inform device\r | |
1157 | // that the following data bytes are command packet.\r | |
1158 | //\r | |
1159 | WritePortB (\r | |
1160 | AtapiScsiPrivate->PciIo,\r | |
1161 | AtapiScsiPrivate->IoPort->Reg.Command,\r | |
1162 | PACKET_CMD\r | |
1163 | );\r | |
1164 | \r | |
1165 | //\r | |
1166 | // Before data transfer, BSY should be 0 and DRQ should be 1.\r | |
1167 | // if they are not in specified time frame,\r | |
1168 | // retrieve Sense Key from Error Register before return.\r | |
1169 | //\r | |
1170 | Status = StatusDRQReady (AtapiScsiPrivate, TimeoutInMicroSeconds);\r | |
1171 | if (EFI_ERROR (Status)) {\r | |
1172 | if (Status == EFI_ABORTED) {\r | |
1173 | Status = EFI_DEVICE_ERROR;\r | |
1174 | }\r | |
1175 | \r | |
1176 | *ByteCount = 0;\r | |
1177 | return Status;\r | |
1178 | }\r | |
1179 | \r | |
1180 | //\r | |
1181 | // Send out command packet\r | |
1182 | //\r | |
1183 | CommandIndex = (UINT16 *) PacketCommand;\r | |
1184 | for (Count = 0; Count < 6; Count++, CommandIndex++) {\r | |
1185 | WritePortW (AtapiScsiPrivate->PciIo, AtapiScsiPrivate->IoPort->Data, *CommandIndex);\r | |
1186 | }\r | |
1187 | \r | |
1188 | //\r | |
1189 | // call AtapiPassThruPioReadWriteData() function to get\r | |
1190 | // requested transfer data form device.\r | |
1191 | //\r | |
1192 | return AtapiPassThruPioReadWriteData (\r | |
1193 | AtapiScsiPrivate,\r | |
1194 | Buffer,\r | |
1195 | ByteCount,\r | |
1196 | Direction,\r | |
1197 | TimeoutInMicroSeconds\r | |
1198 | );\r | |
1199 | }\r | |
1200 | \r | |
1201 | /**\r | |
1202 | Performs data transfer between ATAPI device and host after the\r | |
1203 | ATAPI command packet is sent.\r | |
1204 | \r | |
1205 | @param AtapiScsiPrivate: Private data structure for the specified channel.\r | |
1206 | @param Buffer: Points to the transferred data.\r | |
1207 | @param ByteCount: When input,indicates the buffer size; when output,\r | |
1208 | indicates the actually transferred data size.\r | |
1209 | @param Direction: Indicates the data transfer direction.\r | |
1210 | @param TimeoutInMicroSeconds: The timeout, in micro second units,\r | |
1211 | to use for the execution of this ATAPI command.\r | |
1212 | A TimeoutInMicroSeconds value of 0 means that\r | |
1213 | this function will wait indefinitely for the ATAPI\r | |
1214 | command to execute.\r | |
1215 | <P>\r | |
1216 | If TimeoutInMicroSeconds is greater than zero, then\r | |
1217 | this function will return EFI_TIMEOUT if the time\r | |
1218 | required to execute the ATAPI command is greater\r | |
1219 | than TimeoutInMicroSeconds.\r | |
1220 | </P>\r | |
1221 | \r | |
1222 | @todo AtapiScsiPrivate - add argument and description to function comment\r | |
1223 | @todo Buffer - add argument and description to function comment\r | |
1224 | @todo ByteCount - add argument and description to function comment\r | |
1225 | @todo Direction - add argument and description to function comment\r | |
1226 | @todo EFI_DEVICE_ERROR - add return value to function comment\r | |
1227 | @todo EFI_DEVICE_ERROR - add return value to function comment\r | |
1228 | @todo EFI_WARN_BUFFER_TOO_SMALL - add return value to function comment\r | |
1229 | **/\r | |
1230 | EFI_STATUS\r | |
1231 | AtapiPassThruPioReadWriteData (\r | |
1232 | ATAPI_SCSI_PASS_THRU_DEV *AtapiScsiPrivate,\r | |
1233 | UINT16 *Buffer,\r | |
1234 | UINT32 *ByteCount,\r | |
1235 | DATA_DIRECTION Direction,\r | |
1236 | UINT64 TimeoutInMicroSeconds\r | |
1237 | )\r | |
1238 | {\r | |
1239 | UINT32 Index;\r | |
1240 | UINT32 RequiredWordCount;\r | |
1241 | UINT32 ActualWordCount;\r | |
1242 | \r | |
1243 | UINT32 WordCount;\r | |
1244 | EFI_STATUS Status;\r | |
1245 | UINT16 *ptrBuffer;\r | |
1246 | \r | |
1247 | Status = EFI_SUCCESS;\r | |
1248 | \r | |
1249 | //\r | |
1250 | // Non Data transfer request is also supported.\r | |
1251 | //\r | |
1252 | if (*ByteCount == 0 || Buffer == NULL) {\r | |
1253 | *ByteCount = 0;\r | |
1254 | if (EFI_ERROR (StatusWaitForBSYClear (AtapiScsiPrivate, TimeoutInMicroSeconds))) {\r | |
1255 | return EFI_DEVICE_ERROR;\r | |
1256 | }\r | |
1257 | }\r | |
1258 | \r | |
1259 | ptrBuffer = Buffer;\r | |
1260 | RequiredWordCount = *ByteCount / 2;\r | |
1261 | \r | |
1262 | //\r | |
1263 | // ActuralWordCount means the word count of data really transfered.\r | |
1264 | //\r | |
1265 | ActualWordCount = 0;\r | |
1266 | \r | |
1267 | while (ActualWordCount < RequiredWordCount) {\r | |
1268 | //\r | |
1269 | // before each data transfer stream, the host should poll DRQ bit ready,\r | |
1270 | // which indicates device's ready for data transfer .\r | |
1271 | //\r | |
1272 | Status = StatusDRQReady (AtapiScsiPrivate, TimeoutInMicroSeconds);\r | |
1273 | if (EFI_ERROR (Status)) {\r | |
1274 | *ByteCount = ActualWordCount * 2;\r | |
1275 | \r | |
1276 | AtapiPassThruCheckErrorStatus (AtapiScsiPrivate);\r | |
1277 | \r | |
1278 | if (ActualWordCount == 0) {\r | |
1279 | return EFI_DEVICE_ERROR;\r | |
1280 | }\r | |
1281 | //\r | |
1282 | // ActualWordCount > 0\r | |
1283 | //\r | |
1284 | if (ActualWordCount < RequiredWordCount) {\r | |
1285 | return EFI_WARN_BUFFER_TOO_SMALL;\r | |
1286 | }\r | |
1287 | }\r | |
1288 | //\r | |
1289 | // get current data transfer size from Cylinder Registers.\r | |
1290 | //\r | |
1291 | WordCount = ReadPortB (AtapiScsiPrivate->PciIo, AtapiScsiPrivate->IoPort->CylinderMsb) << 8;\r | |
1292 | WordCount = WordCount | ReadPortB (AtapiScsiPrivate->PciIo, AtapiScsiPrivate->IoPort->CylinderLsb);\r | |
1293 | WordCount = WordCount & 0xffff;\r | |
1294 | WordCount /= 2;\r | |
1295 | \r | |
1296 | //\r | |
1297 | // perform a series data In/Out.\r | |
1298 | //\r | |
1299 | for (Index = 0; (Index < WordCount) && (ActualWordCount < RequiredWordCount); Index++, ActualWordCount++) {\r | |
1300 | \r | |
1301 | if (Direction == DataIn) {\r | |
1302 | \r | |
1303 | *ptrBuffer = ReadPortW (AtapiScsiPrivate->PciIo, AtapiScsiPrivate->IoPort->Data);\r | |
1304 | } else {\r | |
1305 | \r | |
1306 | WritePortW (AtapiScsiPrivate->PciIo, AtapiScsiPrivate->IoPort->Data, *ptrBuffer);\r | |
1307 | }\r | |
1308 | \r | |
1309 | ptrBuffer++;\r | |
1310 | \r | |
1311 | }\r | |
1312 | }\r | |
1313 | //\r | |
1314 | // After data transfer is completed, normally, DRQ bit should clear.\r | |
1315 | //\r | |
1316 | StatusDRQClear (AtapiScsiPrivate, TimeoutInMicroSeconds);\r | |
1317 | \r | |
1318 | //\r | |
1319 | // read status register to check whether error happens.\r | |
1320 | //\r | |
1321 | Status = AtapiPassThruCheckErrorStatus (AtapiScsiPrivate);\r | |
1322 | \r | |
1323 | *ByteCount = ActualWordCount * 2;\r | |
1324 | \r | |
1325 | return Status;\r | |
1326 | }\r | |
1327 | \r | |
1328 | \r | |
1329 | /**\r | |
1330 | Read one byte from a specified I/O port.\r | |
1331 | \r | |
1332 | @todo function comment is missing 'Routine Description:'\r | |
1333 | @todo function comment is missing 'Arguments:'\r | |
1334 | @todo function comment is missing 'Returns:'\r | |
1335 | @todo PciIo - add argument and description to function comment\r | |
1336 | @todo Port - add argument and description to function comment\r | |
1337 | **/\r | |
1338 | UINT8\r | |
1339 | ReadPortB (\r | |
1340 | IN EFI_PCI_IO_PROTOCOL *PciIo,\r | |
1341 | IN UINT16 Port\r | |
1342 | )\r | |
1343 | {\r | |
1344 | UINT8 Data;\r | |
1345 | \r | |
1346 | Data = 0;\r | |
1347 | PciIo->Io.Read (\r | |
1348 | PciIo,\r | |
1349 | EfiPciIoWidthUint8,\r | |
1350 | EFI_PCI_IO_PASS_THROUGH_BAR,\r | |
1351 | (UINT64) Port,\r | |
1352 | 1,\r | |
1353 | &Data\r | |
1354 | );\r | |
1355 | return Data;\r | |
1356 | }\r | |
1357 | \r | |
1358 | \r | |
1359 | /**\r | |
1360 | Read one word from a specified I/O port.\r | |
1361 | \r | |
1362 | @todo function comment is missing 'Routine Description:'\r | |
1363 | @todo function comment is missing 'Arguments:'\r | |
1364 | @todo function comment is missing 'Returns:'\r | |
1365 | @todo PciIo - add argument and description to function comment\r | |
1366 | @todo Port - add argument and description to function comment\r | |
1367 | **/\r | |
1368 | UINT16\r | |
1369 | ReadPortW (\r | |
1370 | IN EFI_PCI_IO_PROTOCOL *PciIo,\r | |
1371 | IN UINT16 Port\r | |
1372 | )\r | |
1373 | {\r | |
1374 | UINT16 Data;\r | |
1375 | \r | |
1376 | Data = 0;\r | |
1377 | PciIo->Io.Read (\r | |
1378 | PciIo,\r | |
1379 | EfiPciIoWidthUint16,\r | |
1380 | EFI_PCI_IO_PASS_THROUGH_BAR,\r | |
1381 | (UINT64) Port,\r | |
1382 | 1,\r | |
1383 | &Data\r | |
1384 | );\r | |
1385 | return Data;\r | |
1386 | }\r | |
1387 | \r | |
1388 | \r | |
1389 | /**\r | |
1390 | Write one byte to a specified I/O port.\r | |
1391 | \r | |
1392 | @todo function comment is missing 'Routine Description:'\r | |
1393 | @todo function comment is missing 'Arguments:'\r | |
1394 | @todo function comment is missing 'Returns:'\r | |
1395 | @todo PciIo - add argument and description to function comment\r | |
1396 | @todo Port - add argument and description to function comment\r | |
1397 | @todo Data - add argument and description to function comment\r | |
1398 | **/\r | |
1399 | VOID\r | |
1400 | WritePortB (\r | |
1401 | IN EFI_PCI_IO_PROTOCOL *PciIo,\r | |
1402 | IN UINT16 Port,\r | |
1403 | IN UINT8 Data\r | |
1404 | )\r | |
1405 | {\r | |
1406 | \r | |
1407 | PciIo->Io.Write (\r | |
1408 | PciIo,\r | |
1409 | EfiPciIoWidthUint8,\r | |
1410 | EFI_PCI_IO_PASS_THROUGH_BAR,\r | |
1411 | (UINT64) Port,\r | |
1412 | 1,\r | |
1413 | &Data\r | |
1414 | );\r | |
1415 | \r | |
1416 | }\r | |
1417 | \r | |
1418 | \r | |
1419 | /**\r | |
1420 | Write one word to a specified I/O port.\r | |
1421 | \r | |
1422 | @todo function comment is missing 'Routine Description:'\r | |
1423 | @todo function comment is missing 'Arguments:'\r | |
1424 | @todo function comment is missing 'Returns:'\r | |
1425 | @todo PciIo - add argument and description to function comment\r | |
1426 | @todo Port - add argument and description to function comment\r | |
1427 | @todo Data - add argument and description to function comment\r | |
1428 | **/\r | |
1429 | VOID\r | |
1430 | WritePortW (\r | |
1431 | IN EFI_PCI_IO_PROTOCOL *PciIo,\r | |
1432 | IN UINT16 Port,\r | |
1433 | IN UINT16 Data\r | |
1434 | )\r | |
1435 | {\r | |
1436 | \r | |
1437 | PciIo->Io.Write (\r | |
1438 | PciIo,\r | |
1439 | EfiPciIoWidthUint16,\r | |
1440 | EFI_PCI_IO_PASS_THROUGH_BAR,\r | |
1441 | (UINT64) Port,\r | |
1442 | 1,\r | |
1443 | &Data\r | |
1444 | );\r | |
1445 | }\r | |
1446 | \r | |
1447 | /**\r | |
1448 | Check whether DRQ is clear in the Status Register. (BSY must also be cleared)\r | |
1449 | If TimeoutInMicroSeconds is zero, this routine should wait infinitely for\r | |
1450 | DRQ clear. Otherwise, it will return EFI_TIMEOUT when specified time is \r | |
1451 | elapsed.\r | |
1452 | \r | |
1453 | @todo function comment is missing 'Routine Description:'\r | |
1454 | @todo function comment is missing 'Arguments:'\r | |
1455 | @todo function comment is missing 'Returns:'\r | |
1456 | @todo AtapiScsiPrivate - add argument and description to function comment\r | |
1457 | @todo TimeoutInMicroSeconds - add argument and description to function comment\r | |
1458 | @todo EFI_ABORTED - add return value to function comment\r | |
1459 | @todo EFI_TIMEOUT - add return value to function comment\r | |
1460 | @todo EFI_SUCCESS - add return value to function comment\r | |
1461 | **/\r | |
1462 | EFI_STATUS\r | |
1463 | StatusDRQClear (\r | |
1464 | ATAPI_SCSI_PASS_THRU_DEV *AtapiScsiPrivate,\r | |
1465 | UINT64 TimeoutInMicroSeconds\r | |
1466 | )\r | |
1467 | {\r | |
1468 | UINT64 Delay;\r | |
1469 | UINT8 StatusRegister;\r | |
1470 | UINT8 ErrRegister;\r | |
1471 | \r | |
1472 | if (TimeoutInMicroSeconds == 0) {\r | |
1473 | Delay = 2;\r | |
1474 | } else {\r | |
1475 | Delay = DivU64x32 (TimeoutInMicroSeconds, (UINT32) 30) + 1;\r | |
1476 | }\r | |
1477 | \r | |
1478 | do {\r | |
1479 | \r | |
1480 | StatusRegister = ReadPortB (\r | |
1481 | AtapiScsiPrivate->PciIo,\r | |
1482 | AtapiScsiPrivate->IoPort->Reg.Status\r | |
1483 | );\r | |
1484 | \r | |
1485 | //\r | |
1486 | // wait for BSY == 0 and DRQ == 0\r | |
1487 | //\r | |
1488 | if ((StatusRegister & (DRQ | BSY)) == 0) {\r | |
1489 | break;\r | |
1490 | }\r | |
1491 | //\r | |
1492 | // check whether the command is aborted by the device\r | |
1493 | //\r | |
1494 | if ((StatusRegister & (BSY | ERR)) == ERR) {\r | |
1495 | \r | |
1496 | ErrRegister = ReadPortB (\r | |
1497 | AtapiScsiPrivate->PciIo,\r | |
1498 | AtapiScsiPrivate->IoPort->Reg1.Error\r | |
1499 | );\r | |
1500 | if ((ErrRegister & ABRT_ERR) == ABRT_ERR) {\r | |
1501 | \r | |
1502 | return EFI_ABORTED;\r | |
1503 | }\r | |
1504 | }\r | |
1505 | //\r | |
1506 | // Stall for 30 us\r | |
1507 | //\r | |
1508 | gBS->Stall (30);\r | |
1509 | \r | |
1510 | //\r | |
1511 | // Loop infinitely if not meeting expected condition\r | |
1512 | //\r | |
1513 | if (TimeoutInMicroSeconds == 0) {\r | |
1514 | Delay = 2;\r | |
1515 | }\r | |
1516 | \r | |
1517 | Delay--;\r | |
1518 | } while (Delay);\r | |
1519 | \r | |
1520 | if (Delay == 0) {\r | |
1521 | return EFI_TIMEOUT;\r | |
1522 | }\r | |
1523 | \r | |
1524 | return EFI_SUCCESS;\r | |
1525 | }\r | |
1526 | \r | |
1527 | /**\r | |
1528 | Check whether DRQ is clear in the Alternate Status Register. \r | |
1529 | (BSY must also be cleared).\r | |
1530 | If TimeoutInMicroSeconds is zero, this routine should wait infinitely for\r | |
1531 | DRQ clear. Otherwise, it will return EFI_TIMEOUT when specified time is \r | |
1532 | elapsed.\r | |
1533 | \r | |
1534 | @todo function comment is missing 'Routine Description:'\r | |
1535 | @todo function comment is missing 'Arguments:'\r | |
1536 | @todo function comment is missing 'Returns:'\r | |
1537 | @todo AtapiScsiPrivate - add argument and description to function comment\r | |
1538 | @todo TimeoutInMicroSeconds - add argument and description to function comment\r | |
1539 | @todo EFI_ABORTED - add return value to function comment\r | |
1540 | @todo EFI_TIMEOUT - add return value to function comment\r | |
1541 | @todo EFI_SUCCESS - add return value to function comment\r | |
1542 | **/\r | |
1543 | EFI_STATUS\r | |
1544 | AltStatusDRQClear (\r | |
1545 | ATAPI_SCSI_PASS_THRU_DEV *AtapiScsiPrivate,\r | |
1546 | UINT64 TimeoutInMicroSeconds\r | |
1547 | )\r | |
1548 | {\r | |
1549 | UINT64 Delay;\r | |
1550 | UINT8 AltStatusRegister;\r | |
1551 | UINT8 ErrRegister;\r | |
1552 | \r | |
1553 | if (TimeoutInMicroSeconds == 0) {\r | |
1554 | Delay = 2;\r | |
1555 | } else {\r | |
1556 | Delay = DivU64x32 (TimeoutInMicroSeconds, (UINT32) 30) + 1;\r | |
1557 | }\r | |
1558 | \r | |
1559 | do {\r | |
1560 | \r | |
1561 | AltStatusRegister = ReadPortB (\r | |
1562 | AtapiScsiPrivate->PciIo,\r | |
1563 | AtapiScsiPrivate->IoPort->Alt.AltStatus\r | |
1564 | );\r | |
1565 | \r | |
1566 | //\r | |
1567 | // wait for BSY == 0 and DRQ == 0\r | |
1568 | //\r | |
1569 | if ((AltStatusRegister & (DRQ | BSY)) == 0) {\r | |
1570 | break;\r | |
1571 | }\r | |
1572 | \r | |
1573 | if ((AltStatusRegister & (BSY | ERR)) == ERR) {\r | |
1574 | \r | |
1575 | ErrRegister = ReadPortB (\r | |
1576 | AtapiScsiPrivate->PciIo,\r | |
1577 | AtapiScsiPrivate->IoPort->Reg1.Error\r | |
1578 | );\r | |
1579 | if ((ErrRegister & ABRT_ERR) == ABRT_ERR) {\r | |
1580 | \r | |
1581 | return EFI_ABORTED;\r | |
1582 | }\r | |
1583 | }\r | |
1584 | //\r | |
1585 | // Stall for 30 us\r | |
1586 | //\r | |
1587 | gBS->Stall (30);\r | |
1588 | \r | |
1589 | //\r | |
1590 | // Loop infinitely if not meeting expected condition\r | |
1591 | //\r | |
1592 | if (TimeoutInMicroSeconds == 0) {\r | |
1593 | Delay = 2;\r | |
1594 | }\r | |
1595 | \r | |
1596 | Delay--;\r | |
1597 | } while (Delay);\r | |
1598 | \r | |
1599 | if (Delay == 0) {\r | |
1600 | return EFI_TIMEOUT;\r | |
1601 | }\r | |
1602 | \r | |
1603 | return EFI_SUCCESS;\r | |
1604 | }\r | |
1605 | \r | |
1606 | /**\r | |
1607 | Check whether DRQ is ready in the Status Register. (BSY must also be cleared)\r | |
1608 | If TimeoutInMicroSeconds is zero, this routine should wait infinitely for\r | |
1609 | DRQ ready. Otherwise, it will return EFI_TIMEOUT when specified time is \r | |
1610 | elapsed.\r | |
1611 | \r | |
1612 | @todo function comment is missing 'Routine Description:'\r | |
1613 | @todo function comment is missing 'Arguments:'\r | |
1614 | @todo function comment is missing 'Returns:'\r | |
1615 | @todo AtapiScsiPrivate - add argument and description to function comment\r | |
1616 | @todo TimeoutInMicroSeconds - add argument and description to function comment\r | |
1617 | @todo EFI_ABORTED - add return value to function comment\r | |
1618 | @todo EFI_TIMEOUT - add return value to function comment\r | |
1619 | @todo EFI_SUCCESS - add return value to function comment\r | |
1620 | **/\r | |
1621 | EFI_STATUS\r | |
1622 | StatusDRQReady (\r | |
1623 | ATAPI_SCSI_PASS_THRU_DEV *AtapiScsiPrivate,\r | |
1624 | UINT64 TimeoutInMicroSeconds\r | |
1625 | )\r | |
1626 | {\r | |
1627 | UINT64 Delay;\r | |
1628 | UINT8 StatusRegister;\r | |
1629 | UINT8 ErrRegister;\r | |
1630 | \r | |
1631 | if (TimeoutInMicroSeconds == 0) {\r | |
1632 | Delay = 2;\r | |
1633 | } else {\r | |
1634 | Delay = DivU64x32 (TimeoutInMicroSeconds, (UINT32) 30) + 1;\r | |
1635 | }\r | |
1636 | \r | |
1637 | do {\r | |
1638 | //\r | |
1639 | // read Status Register will clear interrupt\r | |
1640 | //\r | |
1641 | StatusRegister = ReadPortB (\r | |
1642 | AtapiScsiPrivate->PciIo,\r | |
1643 | AtapiScsiPrivate->IoPort->Reg.Status\r | |
1644 | );\r | |
1645 | \r | |
1646 | //\r | |
1647 | // BSY==0,DRQ==1\r | |
1648 | //\r | |
1649 | if ((StatusRegister & (BSY | DRQ)) == DRQ) {\r | |
1650 | break;\r | |
1651 | }\r | |
1652 | \r | |
1653 | if ((StatusRegister & (BSY | ERR)) == ERR) {\r | |
1654 | \r | |
1655 | ErrRegister = ReadPortB (\r | |
1656 | AtapiScsiPrivate->PciIo,\r | |
1657 | AtapiScsiPrivate->IoPort->Reg1.Error\r | |
1658 | );\r | |
1659 | if ((ErrRegister & ABRT_ERR) == ABRT_ERR) {\r | |
1660 | return EFI_ABORTED;\r | |
1661 | }\r | |
1662 | }\r | |
1663 | \r | |
1664 | //\r | |
1665 | // Stall for 30 us\r | |
1666 | //\r | |
1667 | gBS->Stall (30);\r | |
1668 | \r | |
1669 | //\r | |
1670 | // Loop infinitely if not meeting expected condition\r | |
1671 | //\r | |
1672 | if (TimeoutInMicroSeconds == 0) {\r | |
1673 | Delay = 2;\r | |
1674 | }\r | |
1675 | \r | |
1676 | Delay--;\r | |
1677 | } while (Delay);\r | |
1678 | \r | |
1679 | if (Delay == 0) {\r | |
1680 | return EFI_TIMEOUT;\r | |
1681 | }\r | |
1682 | \r | |
1683 | return EFI_SUCCESS;\r | |
1684 | }\r | |
1685 | \r | |
1686 | /**\r | |
1687 | Check whether DRQ is ready in the Alternate Status Register. \r | |
1688 | (BSY must also be cleared)\r | |
1689 | If TimeoutInMicroSeconds is zero, this routine should wait infinitely for\r | |
1690 | DRQ ready. Otherwise, it will return EFI_TIMEOUT when specified time is \r | |
1691 | elapsed.\r | |
1692 | \r | |
1693 | @todo function comment is missing 'Routine Description:'\r | |
1694 | @todo function comment is missing 'Arguments:'\r | |
1695 | @todo function comment is missing 'Returns:'\r | |
1696 | @todo AtapiScsiPrivate - add argument and description to function comment\r | |
1697 | @todo TimeoutInMicroSeconds - add argument and description to function comment\r | |
1698 | @todo EFI_ABORTED - add return value to function comment\r | |
1699 | @todo EFI_TIMEOUT - add return value to function comment\r | |
1700 | @todo EFI_SUCCESS - add return value to function comment\r | |
1701 | **/\r | |
1702 | EFI_STATUS\r | |
1703 | AltStatusDRQReady (\r | |
1704 | ATAPI_SCSI_PASS_THRU_DEV *AtapiScsiPrivate,\r | |
1705 | UINT64 TimeoutInMicroSeconds\r | |
1706 | )\r | |
1707 | {\r | |
1708 | UINT64 Delay;\r | |
1709 | UINT8 AltStatusRegister;\r | |
1710 | UINT8 ErrRegister;\r | |
1711 | \r | |
1712 | if (TimeoutInMicroSeconds == 0) {\r | |
1713 | Delay = 2;\r | |
1714 | } else {\r | |
1715 | Delay = DivU64x32 (TimeoutInMicroSeconds, (UINT32) 30) + 1;\r | |
1716 | }\r | |
1717 | \r | |
1718 | do {\r | |
1719 | //\r | |
1720 | // read Status Register will clear interrupt\r | |
1721 | //\r | |
1722 | AltStatusRegister = ReadPortB (\r | |
1723 | AtapiScsiPrivate->PciIo,\r | |
1724 | AtapiScsiPrivate->IoPort->Alt.AltStatus\r | |
1725 | );\r | |
1726 | //\r | |
1727 | // BSY==0,DRQ==1\r | |
1728 | //\r | |
1729 | if ((AltStatusRegister & (BSY | DRQ)) == DRQ) {\r | |
1730 | break;\r | |
1731 | }\r | |
1732 | \r | |
1733 | if ((AltStatusRegister & (BSY | ERR)) == ERR) {\r | |
1734 | \r | |
1735 | ErrRegister = ReadPortB (\r | |
1736 | AtapiScsiPrivate->PciIo,\r | |
1737 | AtapiScsiPrivate->IoPort->Reg1.Error\r | |
1738 | );\r | |
1739 | if ((ErrRegister & ABRT_ERR) == ABRT_ERR) {\r | |
1740 | return EFI_ABORTED;\r | |
1741 | }\r | |
1742 | }\r | |
1743 | \r | |
1744 | //\r | |
1745 | // Stall for 30 us\r | |
1746 | //\r | |
1747 | gBS->Stall (30);\r | |
1748 | \r | |
1749 | //\r | |
1750 | // Loop infinitely if not meeting expected condition\r | |
1751 | //\r | |
1752 | if (TimeoutInMicroSeconds == 0) {\r | |
1753 | Delay = 2;\r | |
1754 | }\r | |
1755 | \r | |
1756 | Delay--;\r | |
1757 | } while (Delay);\r | |
1758 | \r | |
1759 | if (Delay == 0) {\r | |
1760 | return EFI_TIMEOUT;\r | |
1761 | }\r | |
1762 | \r | |
1763 | return EFI_SUCCESS;\r | |
1764 | }\r | |
1765 | \r | |
1766 | /**\r | |
1767 | Check whether BSY is clear in the Status Register.\r | |
1768 | If TimeoutInMicroSeconds is zero, this routine should wait infinitely for\r | |
1769 | BSY clear. Otherwise, it will return EFI_TIMEOUT when specified time is \r | |
1770 | elapsed.\r | |
1771 | \r | |
1772 | @todo function comment is missing 'Routine Description:'\r | |
1773 | @todo function comment is missing 'Arguments:'\r | |
1774 | @todo function comment is missing 'Returns:'\r | |
1775 | @todo AtapiScsiPrivate - add argument and description to function comment\r | |
1776 | @todo TimeoutInMicroSeconds - add argument and description to function comment\r | |
1777 | @todo EFI_TIMEOUT - add return value to function comment\r | |
1778 | @todo EFI_SUCCESS - add return value to function comment\r | |
1779 | **/\r | |
1780 | EFI_STATUS\r | |
1781 | StatusWaitForBSYClear (\r | |
1782 | ATAPI_SCSI_PASS_THRU_DEV *AtapiScsiPrivate,\r | |
1783 | UINT64 TimeoutInMicroSeconds\r | |
1784 | )\r | |
1785 | {\r | |
1786 | UINT64 Delay;\r | |
1787 | UINT8 StatusRegister;\r | |
1788 | \r | |
1789 | if (TimeoutInMicroSeconds == 0) {\r | |
1790 | Delay = 2;\r | |
1791 | } else {\r | |
1792 | Delay = DivU64x32 (TimeoutInMicroSeconds, (UINT32) 30) + 1;\r | |
1793 | }\r | |
1794 | \r | |
1795 | do {\r | |
1796 | \r | |
1797 | StatusRegister = ReadPortB (\r | |
1798 | AtapiScsiPrivate->PciIo,\r | |
1799 | AtapiScsiPrivate->IoPort->Reg.Status\r | |
1800 | );\r | |
1801 | if ((StatusRegister & BSY) == 0x00) {\r | |
1802 | break;\r | |
1803 | }\r | |
1804 | \r | |
1805 | //\r | |
1806 | // Stall for 30 us\r | |
1807 | //\r | |
1808 | gBS->Stall (30);\r | |
1809 | \r | |
1810 | //\r | |
1811 | // Loop infinitely if not meeting expected condition\r | |
1812 | //\r | |
1813 | if (TimeoutInMicroSeconds == 0) {\r | |
1814 | Delay = 2;\r | |
1815 | }\r | |
1816 | \r | |
1817 | Delay--;\r | |
1818 | } while (Delay);\r | |
1819 | \r | |
1820 | if (Delay == 0) {\r | |
1821 | return EFI_TIMEOUT;\r | |
1822 | }\r | |
1823 | \r | |
1824 | return EFI_SUCCESS;\r | |
1825 | }\r | |
1826 | \r | |
1827 | /**\r | |
1828 | Check whether BSY is clear in the Alternate Status Register.\r | |
1829 | If TimeoutInMicroSeconds is zero, this routine should wait infinitely for\r | |
1830 | BSY clear. Otherwise, it will return EFI_TIMEOUT when specified time is \r | |
1831 | elapsed.\r | |
1832 | \r | |
1833 | @todo function comment is missing 'Routine Description:'\r | |
1834 | @todo function comment is missing 'Arguments:'\r | |
1835 | @todo function comment is missing 'Returns:'\r | |
1836 | @todo AtapiScsiPrivate - add argument and description to function comment\r | |
1837 | @todo TimeoutInMicroSeconds - add argument and description to function comment\r | |
1838 | @todo EFI_TIMEOUT - add return value to function comment\r | |
1839 | @todo EFI_SUCCESS - add return value to function comment\r | |
1840 | **/\r | |
1841 | EFI_STATUS\r | |
1842 | AltStatusWaitForBSYClear (\r | |
1843 | ATAPI_SCSI_PASS_THRU_DEV *AtapiScsiPrivate,\r | |
1844 | UINT64 TimeoutInMicroSeconds\r | |
1845 | )\r | |
1846 | {\r | |
1847 | UINT64 Delay;\r | |
1848 | UINT8 AltStatusRegister;\r | |
1849 | \r | |
1850 | if (TimeoutInMicroSeconds == 0) {\r | |
1851 | Delay = 2;\r | |
1852 | } else {\r | |
1853 | Delay = DivU64x32 (TimeoutInMicroSeconds, (UINT32) 30) + 1;\r | |
1854 | }\r | |
1855 | \r | |
1856 | do {\r | |
1857 | \r | |
1858 | AltStatusRegister = ReadPortB (\r | |
1859 | AtapiScsiPrivate->PciIo,\r | |
1860 | AtapiScsiPrivate->IoPort->Alt.AltStatus\r | |
1861 | );\r | |
1862 | if ((AltStatusRegister & BSY) == 0x00) {\r | |
1863 | break;\r | |
1864 | }\r | |
1865 | \r | |
1866 | //\r | |
1867 | // Stall for 30 us\r | |
1868 | //\r | |
1869 | gBS->Stall (30);\r | |
1870 | //\r | |
1871 | // Loop infinitely if not meeting expected condition\r | |
1872 | //\r | |
1873 | if (TimeoutInMicroSeconds == 0) {\r | |
1874 | Delay = 2;\r | |
1875 | }\r | |
1876 | \r | |
1877 | Delay--;\r | |
1878 | } while (Delay);\r | |
1879 | \r | |
1880 | if (Delay == 0) {\r | |
1881 | return EFI_TIMEOUT;\r | |
1882 | }\r | |
1883 | \r | |
1884 | return EFI_SUCCESS;\r | |
1885 | }\r | |
1886 | \r | |
1887 | /**\r | |
1888 | Check whether DRDY is ready in the Status Register. \r | |
1889 | (BSY must also be cleared)\r | |
1890 | If TimeoutInMicroSeconds is zero, this routine should wait infinitely for\r | |
1891 | DRDY ready. Otherwise, it will return EFI_TIMEOUT when specified time is \r | |
1892 | elapsed.\r | |
1893 | \r | |
1894 | @todo function comment is missing 'Routine Description:'\r | |
1895 | @todo function comment is missing 'Arguments:'\r | |
1896 | @todo function comment is missing 'Returns:'\r | |
1897 | @todo AtapiScsiPrivate - add argument and description to function comment\r | |
1898 | @todo TimeoutInMicroSeconds - add argument and description to function comment\r | |
1899 | @todo EFI_ABORTED - add return value to function comment\r | |
1900 | @todo EFI_TIMEOUT - add return value to function comment\r | |
1901 | @todo EFI_SUCCESS - add return value to function comment\r | |
1902 | **/\r | |
1903 | EFI_STATUS\r | |
1904 | StatusDRDYReady (\r | |
1905 | ATAPI_SCSI_PASS_THRU_DEV *AtapiScsiPrivate,\r | |
1906 | UINT64 TimeoutInMicroSeconds\r | |
1907 | )\r | |
1908 | {\r | |
1909 | UINT64 Delay;\r | |
1910 | UINT8 StatusRegister;\r | |
1911 | UINT8 ErrRegister;\r | |
1912 | \r | |
1913 | if (TimeoutInMicroSeconds == 0) {\r | |
1914 | Delay = 2;\r | |
1915 | } else {\r | |
1916 | Delay = DivU64x32 (TimeoutInMicroSeconds, (UINT32) 30) + 1;\r | |
1917 | }\r | |
1918 | \r | |
1919 | do {\r | |
1920 | StatusRegister = ReadPortB (\r | |
1921 | AtapiScsiPrivate->PciIo,\r | |
1922 | AtapiScsiPrivate->IoPort->Reg.Status\r | |
1923 | );\r | |
1924 | //\r | |
1925 | // BSY == 0 , DRDY == 1\r | |
1926 | //\r | |
1927 | if ((StatusRegister & (DRDY | BSY)) == DRDY) {\r | |
1928 | break;\r | |
1929 | }\r | |
1930 | \r | |
1931 | if ((StatusRegister & (BSY | ERR)) == ERR) {\r | |
1932 | \r | |
1933 | ErrRegister = ReadPortB (\r | |
1934 | AtapiScsiPrivate->PciIo,\r | |
1935 | AtapiScsiPrivate->IoPort->Reg1.Error\r | |
1936 | );\r | |
1937 | if ((ErrRegister & ABRT_ERR) == ABRT_ERR) {\r | |
1938 | return EFI_ABORTED;\r | |
1939 | }\r | |
1940 | }\r | |
1941 | \r | |
1942 | //\r | |
1943 | // Stall for 30 us\r | |
1944 | //\r | |
1945 | gBS->Stall (30);\r | |
1946 | //\r | |
1947 | // Loop infinitely if not meeting expected condition\r | |
1948 | //\r | |
1949 | if (TimeoutInMicroSeconds == 0) {\r | |
1950 | Delay = 2;\r | |
1951 | }\r | |
1952 | \r | |
1953 | Delay--;\r | |
1954 | } while (Delay);\r | |
1955 | \r | |
1956 | if (Delay == 0) {\r | |
1957 | return EFI_TIMEOUT;\r | |
1958 | }\r | |
1959 | \r | |
1960 | return EFI_SUCCESS;\r | |
1961 | }\r | |
1962 | \r | |
1963 | /**\r | |
1964 | Check whether DRDY is ready in the Alternate Status Register. \r | |
1965 | (BSY must also be cleared)\r | |
1966 | If TimeoutInMicroSeconds is zero, this routine should wait infinitely for\r | |
1967 | DRDY ready. Otherwise, it will return EFI_TIMEOUT when specified time is \r | |
1968 | elapsed.\r | |
1969 | \r | |
1970 | @todo function comment is missing 'Routine Description:'\r | |
1971 | @todo function comment is missing 'Arguments:'\r | |
1972 | @todo function comment is missing 'Returns:'\r | |
1973 | @todo AtapiScsiPrivate - add argument and description to function comment\r | |
1974 | @todo TimeoutInMicroSeconds - add argument and description to function comment\r | |
1975 | @todo EFI_ABORTED - add return value to function comment\r | |
1976 | @todo EFI_TIMEOUT - add return value to function comment\r | |
1977 | @todo EFI_SUCCESS - add return value to function comment\r | |
1978 | **/\r | |
1979 | EFI_STATUS\r | |
1980 | AltStatusDRDYReady (\r | |
1981 | ATAPI_SCSI_PASS_THRU_DEV *AtapiScsiPrivate,\r | |
1982 | UINT64 TimeoutInMicroSeconds\r | |
1983 | )\r | |
1984 | {\r | |
1985 | UINT64 Delay;\r | |
1986 | UINT8 AltStatusRegister;\r | |
1987 | UINT8 ErrRegister;\r | |
1988 | \r | |
1989 | if (TimeoutInMicroSeconds == 0) {\r | |
1990 | Delay = 2;\r | |
1991 | } else {\r | |
1992 | Delay = DivU64x32 (TimeoutInMicroSeconds, (UINT32) 30) + 1;\r | |
1993 | }\r | |
1994 | \r | |
1995 | do {\r | |
1996 | AltStatusRegister = ReadPortB (\r | |
1997 | AtapiScsiPrivate->PciIo,\r | |
1998 | AtapiScsiPrivate->IoPort->Alt.AltStatus\r | |
1999 | );\r | |
2000 | //\r | |
2001 | // BSY == 0 , DRDY == 1\r | |
2002 | //\r | |
2003 | if ((AltStatusRegister & (DRDY | BSY)) == DRDY) {\r | |
2004 | break;\r | |
2005 | }\r | |
2006 | \r | |
2007 | if ((AltStatusRegister & (BSY | ERR)) == ERR) {\r | |
2008 | \r | |
2009 | ErrRegister = ReadPortB (\r | |
2010 | AtapiScsiPrivate->PciIo,\r | |
2011 | AtapiScsiPrivate->IoPort->Reg1.Error\r | |
2012 | );\r | |
2013 | if ((ErrRegister & ABRT_ERR) == ABRT_ERR) {\r | |
2014 | return EFI_ABORTED;\r | |
2015 | }\r | |
2016 | }\r | |
2017 | \r | |
2018 | //\r | |
2019 | // Stall for 30 us\r | |
2020 | //\r | |
2021 | gBS->Stall (30);\r | |
2022 | //\r | |
2023 | // Loop infinitely if not meeting expected condition\r | |
2024 | //\r | |
2025 | if (TimeoutInMicroSeconds == 0) {\r | |
2026 | Delay = 2;\r | |
2027 | }\r | |
2028 | \r | |
2029 | Delay--;\r | |
2030 | } while (Delay);\r | |
2031 | \r | |
2032 | if (Delay == 0) {\r | |
2033 | return EFI_TIMEOUT;\r | |
2034 | }\r | |
2035 | \r | |
2036 | return EFI_SUCCESS;\r | |
2037 | }\r | |
2038 | \r | |
2039 | /**\r | |
2040 | Check Error Register for Error Information. \r | |
2041 | \r | |
2042 | @todo function comment is missing 'Routine Description:'\r | |
2043 | @todo function comment is missing 'Arguments:'\r | |
2044 | @todo function comment is missing 'Returns:'\r | |
2045 | @todo AtapiScsiPrivate - add argument and description to function comment\r | |
2046 | @todo EFI_SUCCESS - add return value to function comment\r | |
2047 | @todo EFI_DEVICE_ERROR - add return value to function comment\r | |
2048 | **/\r | |
2049 | EFI_STATUS\r | |
2050 | AtapiPassThruCheckErrorStatus (\r | |
2051 | ATAPI_SCSI_PASS_THRU_DEV *AtapiScsiPrivate\r | |
2052 | )\r | |
2053 | {\r | |
2054 | UINT8 StatusRegister;\r | |
2055 | UINT8 ErrorRegister;\r | |
2056 | \r | |
2057 | StatusRegister = ReadPortB (\r | |
2058 | AtapiScsiPrivate->PciIo,\r | |
2059 | AtapiScsiPrivate->IoPort->Reg.Status\r | |
2060 | );\r | |
2061 | \r | |
2062 | DEBUG_CODE_BEGIN ();\r | |
2063 | \r | |
2064 | if (StatusRegister & DWF) {\r | |
2065 | DEBUG (\r | |
2066 | (EFI_D_BLKIO,\r | |
2067 | "AtapiPassThruCheckErrorStatus()-- %02x : Error : Write Fault\n",\r | |
2068 | StatusRegister)\r | |
2069 | );\r | |
2070 | }\r | |
2071 | \r | |
2072 | if (StatusRegister & CORR) {\r | |
2073 | DEBUG (\r | |
2074 | (EFI_D_BLKIO,\r | |
2075 | "AtapiPassThruCheckErrorStatus()-- %02x : Error : Corrected Data\n",\r | |
2076 | StatusRegister)\r | |
2077 | );\r | |
2078 | }\r | |
2079 | \r | |
2080 | if (StatusRegister & ERR) {\r | |
2081 | ErrorRegister = ReadPortB (AtapiScsiPrivate->PciIo, AtapiScsiPrivate->IoPort->Reg1.Error);\r | |
2082 | \r | |
2083 | \r | |
2084 | if (ErrorRegister & BBK_ERR) {\r | |
2085 | DEBUG (\r | |
2086 | (EFI_D_BLKIO,\r | |
2087 | "AtapiPassThruCheckErrorStatus()-- %02x : Error : Bad Block Detected\n",\r | |
2088 | ErrorRegister)\r | |
2089 | );\r | |
2090 | }\r | |
2091 | \r | |
2092 | if (ErrorRegister & UNC_ERR) {\r | |
2093 | DEBUG (\r | |
2094 | (EFI_D_BLKIO,\r | |
2095 | "AtapiPassThruCheckErrorStatus()-- %02x : Error : Uncorrectable Data\n",\r | |
2096 | ErrorRegister)\r | |
2097 | );\r | |
2098 | }\r | |
2099 | \r | |
2100 | if (ErrorRegister & MC_ERR) {\r | |
2101 | DEBUG (\r | |
2102 | (EFI_D_BLKIO,\r | |
2103 | "AtapiPassThruCheckErrorStatus()-- %02x : Error : Media Change\n",\r | |
2104 | ErrorRegister)\r | |
2105 | );\r | |
2106 | }\r | |
2107 | \r | |
2108 | if (ErrorRegister & ABRT_ERR) {\r | |
2109 | DEBUG (\r | |
2110 | (EFI_D_BLKIO,\r | |
2111 | "AtapiPassThruCheckErrorStatus()-- %02x : Error : Abort\n",\r | |
2112 | ErrorRegister)\r | |
2113 | );\r | |
2114 | }\r | |
2115 | \r | |
2116 | if (ErrorRegister & TK0NF_ERR) {\r | |
2117 | DEBUG (\r | |
2118 | (EFI_D_BLKIO,\r | |
2119 | "AtapiPassThruCheckErrorStatus()-- %02x : Error : Track 0 Not Found\n",\r | |
2120 | ErrorRegister)\r | |
2121 | );\r | |
2122 | }\r | |
2123 | \r | |
2124 | if (ErrorRegister & AMNF_ERR) {\r | |
2125 | DEBUG (\r | |
2126 | (EFI_D_BLKIO,\r | |
2127 | "AtapiPassThruCheckErrorStatus()-- %02x : Error : Address Mark Not Found\n",\r | |
2128 | ErrorRegister)\r | |
2129 | );\r | |
2130 | }\r | |
2131 | }\r | |
2132 | \r | |
2133 | DEBUG_CODE_END ();\r | |
2134 | \r | |
2135 | if ((StatusRegister & (ERR | DWF | CORR)) == 0) {\r | |
2136 | return EFI_SUCCESS;\r | |
2137 | }\r | |
2138 | \r | |
2139 | \r | |
2140 | return EFI_DEVICE_ERROR;\r | |
2141 | }\r | |
2142 | \r | |
2143 | /**\r | |
2144 | The user Entry Point for module AtapiPassThru. The user code starts with this function.\r | |
2145 | \r | |
2146 | @param[in] ImageHandle The firmware allocated handle for the EFI image. \r | |
2147 | @param[in] SystemTable A pointer to the EFI System Table.\r | |
2148 | \r | |
2149 | @retval EFI_SUCCESS The entry point is executed successfully.\r | |
2150 | @retval other Some error occurs when executing this entry point.\r | |
2151 | \r | |
2152 | **/\r | |
2153 | EFI_STATUS\r | |
2154 | EFIAPI\r | |
2155 | InitializeAtapiPassThru(\r | |
2156 | IN EFI_HANDLE ImageHandle,\r | |
2157 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
2158 | )\r | |
2159 | {\r | |
2160 | EFI_STATUS Status;\r | |
2161 | \r | |
2162 | //\r | |
2163 | // Install driver model protocol(s).\r | |
2164 | //\r | |
2165 | Status = EfiLibInstallAllDriverProtocols (\r | |
2166 | ImageHandle,\r | |
2167 | SystemTable,\r | |
2168 | &gAtapiScsiPassThruDriverBinding,\r | |
2169 | ImageHandle,\r | |
2170 | &gAtapiScsiPassThruComponentName,\r | |
2171 | NULL,\r | |
2172 | NULL\r | |
2173 | );\r | |
2174 | ASSERT_EFI_ERROR (Status);\r | |
2175 | \r | |
2176 | return Status;\r | |
2177 | }\r |