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ed72955c | 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 | |
878ddf1f | 7 | \r |
ed72955c | 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 | |
878ddf1f | 10 | \r |
ed72955c | 11 | **/\r |
878ddf1f | 12 | \r |
ed72955c | 13 | #include "idebus.h"\r |
878ddf1f | 14 | \r |
ed72955c | 15 | /**\r |
16 | This function is used to get the current status of the media residing\r | |
17 | in the LS-120 drive or ZIP drive. The media status is returned in the \r | |
18 | Error Status.\r | |
878ddf1f | 19 | \r |
ed72955c | 20 | @param[in] *IdeDev\r |
21 | pointer pointing to IDE_BLK_IO_DEV data structure, used\r | |
22 | to record all the information of the IDE device.\r | |
23 | \r | |
24 | @retval EFI_SUCCESS\r | |
25 | The media status is achieved successfully and the media\r | |
26 | can be read/written.\r | |
27 | \r | |
28 | @retval EFI_DEVICE_ERROR\r | |
29 | Get Media Status Command is failed.\r | |
30 | \r | |
31 | @retval EFI_NO_MEDIA\r | |
32 | There is no media in the drive.\r | |
33 | \r | |
34 | @retval EFI_WRITE_PROTECTED\r | |
35 | The media is writing protected.\r | |
878ddf1f | 36 | \r |
ed72955c | 37 | @note\r |
38 | This function must be called after the LS120EnableMediaStatus() \r | |
39 | with second parameter set to TRUE \r | |
40 | (means enable media status notification) is called.\r | |
41 | \r | |
42 | **/\r | |
878ddf1f | 43 | STATIC\r |
44 | EFI_STATUS\r | |
45 | LS120GetMediaStatus (\r | |
46 | IN IDE_BLK_IO_DEV *IdeDev\r | |
47 | )\r | |
878ddf1f | 48 | {\r |
49 | UINT8 DeviceSelect;\r | |
50 | UINT8 StatusValue;\r | |
51 | EFI_STATUS EfiStatus;\r | |
52 | //\r | |
53 | // Poll Alternate Register for BSY clear within timeout.\r | |
54 | //\r | |
55 | EfiStatus = WaitForBSYClear2 (IdeDev, ATATIMEOUT);\r | |
56 | if (EFI_ERROR (EfiStatus)) {\r | |
57 | return EFI_DEVICE_ERROR;\r | |
58 | }\r | |
59 | \r | |
60 | //\r | |
61 | // Select device via Device/Head Register.\r | |
62 | //\r | |
63 | DeviceSelect = (UINT8) ((IdeDev->Device) << 4 | 0xe0);\r | |
64 | IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->Head, DeviceSelect);\r | |
65 | \r | |
66 | //\r | |
67 | // Poll Alternate Register for DRDY set within timeout.\r | |
68 | // After device is selected, DRDY set indicates the device is ready to\r | |
69 | // accept command.\r | |
70 | //\r | |
71 | EfiStatus = DRDYReady2 (IdeDev, ATATIMEOUT);\r | |
72 | if (EFI_ERROR (EfiStatus)) {\r | |
73 | return EFI_DEVICE_ERROR;\r | |
74 | }\r | |
75 | \r | |
76 | //\r | |
77 | // Get Media Status Command is sent\r | |
78 | //\r | |
79 | IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->Reg.Command, 0xDA);\r | |
80 | \r | |
81 | //\r | |
82 | // BSY bit will clear after command is complete.\r | |
83 | //\r | |
84 | EfiStatus = WaitForBSYClear2 (IdeDev, ATATIMEOUT);\r | |
85 | if (EFI_ERROR (EfiStatus)) {\r | |
86 | return EFI_DEVICE_ERROR;\r | |
87 | }\r | |
88 | \r | |
89 | //\r | |
90 | // the media status is returned by the command in the ERROR register\r | |
91 | //\r | |
92 | StatusValue = IDEReadPortB (IdeDev->PciIo, IdeDev->IoPort->Reg1.Error);\r | |
93 | \r | |
94 | if (StatusValue & bit1) {\r | |
95 | return EFI_NO_MEDIA;\r | |
96 | }\r | |
97 | \r | |
98 | if (StatusValue & bit6) {\r | |
99 | return EFI_WRITE_PROTECTED;\r | |
100 | } else {\r | |
101 | return EFI_SUCCESS;\r | |
102 | }\r | |
103 | }\r | |
104 | \r | |
ed72955c | 105 | /**\r |
106 | This function is used to send Enable Media Status Notification Command\r | |
107 | or Disable Media Status Notification Command.\r | |
108 | \r | |
109 | @param[in] *IdeDev\r | |
110 | pointer pointing to IDE_BLK_IO_DEV data structure, used\r | |
111 | to record all the information of the IDE device.\r | |
112 | \r | |
113 | @param[in] Enable\r | |
114 | a flag that indicates whether enable or disable media\r | |
115 | status notification.\r | |
116 | \r | |
117 | @retval EFI_SUCCESS\r | |
118 | If command completes successfully.\r | |
119 | \r | |
120 | @retval EFI_DEVICE_ERROR\r | |
121 | If command failed.\r | |
122 | \r | |
123 | **/\r | |
878ddf1f | 124 | STATIC\r |
125 | EFI_STATUS\r | |
126 | LS120EnableMediaStatus (\r | |
127 | IN IDE_BLK_IO_DEV *IdeDev,\r | |
128 | IN BOOLEAN Enable\r | |
129 | )\r | |
878ddf1f | 130 | {\r |
131 | UINT8 DeviceSelect;\r | |
132 | EFI_STATUS Status;\r | |
133 | \r | |
134 | //\r | |
135 | // Poll Alternate Register for BSY clear within timeout.\r | |
136 | //\r | |
137 | Status = WaitForBSYClear2 (IdeDev, ATATIMEOUT);\r | |
138 | if (EFI_ERROR (Status)) {\r | |
139 | return EFI_DEVICE_ERROR;\r | |
140 | }\r | |
141 | \r | |
142 | //\r | |
143 | // Select device via Device/Head Register.\r | |
144 | //\r | |
145 | DeviceSelect = (UINT8) ((IdeDev->Device) << 4 | 0xe0);\r | |
146 | IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->Head, DeviceSelect);\r | |
147 | \r | |
148 | //\r | |
149 | // Poll Alternate Register for DRDY set within timeout.\r | |
150 | // After device is selected, DRDY set indicates the device is ready to\r | |
151 | // accept command.\r | |
152 | //\r | |
153 | Status = DRDYReady2 (IdeDev, ATATIMEOUT);\r | |
154 | if (EFI_ERROR (Status)) {\r | |
155 | return EFI_DEVICE_ERROR;\r | |
156 | }\r | |
157 | \r | |
158 | if (Enable) {\r | |
159 | //\r | |
160 | // 0x95: Enable media status notification\r | |
161 | //\r | |
162 | IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->Reg1.Feature, 0x95);\r | |
163 | } else {\r | |
164 | //\r | |
165 | // 0x31: Disable media status notification\r | |
166 | //\r | |
167 | IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->Reg1.Feature, 0x31);\r | |
168 | }\r | |
169 | //\r | |
170 | // Set Feature Command is sent\r | |
171 | //\r | |
172 | IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->Reg.Command, 0xEF);\r | |
173 | \r | |
174 | //\r | |
175 | // BSY bit will clear after command is complete.\r | |
176 | //\r | |
177 | Status = WaitForBSYClear (IdeDev, ATATIMEOUT);\r | |
178 | if (EFI_ERROR (Status)) {\r | |
179 | return EFI_DEVICE_ERROR;\r | |
180 | }\r | |
181 | \r | |
182 | return EFI_SUCCESS;\r | |
183 | }\r | |
184 | \r | |
ed72955c | 185 | /**\r |
186 | This function is called by DiscoverIdeDevice() during its device\r | |
187 | identification.\r | |
188 | \r | |
189 | Its main purpose is to get enough information for the device media\r | |
190 | to fill in the Media data structure of the Block I/O Protocol interface.\r | |
191 | \r | |
192 | There are 5 steps to reach such objective:\r | |
193 | \r | |
194 | 1. Sends out the ATAPI Identify Command to the specified device. \r | |
195 | Only ATAPI device responses to this command. If the command succeeds,\r | |
196 | it returns the Identify data structure which filled with information \r | |
197 | about the device. Since the ATAPI device contains removable media, \r | |
198 | the only meaningful information is the device module name.\r | |
199 | \r | |
200 | 2. Sends out ATAPI Inquiry Packet Command to the specified device.\r | |
201 | This command will return inquiry data of the device, which contains\r | |
202 | the device type information.\r | |
203 | \r | |
204 | 3. Allocate sense data space for future use. We don't detect the media\r | |
205 | presence here to improvement boot performance, especially when CD \r | |
206 | media is present. The media detection will be performed just before\r | |
207 | each BLK_IO read/write\r | |
208 | \r | |
209 | @param[in] *IdeDev\r | |
210 | pointer pointing to IDE_BLK_IO_DEV data structure, used\r | |
211 | to record all the information of the IDE device.\r | |
212 | \r | |
213 | @retval EFI_SUCCESS\r | |
214 | Identify ATAPI device successfully.\r | |
215 | \r | |
216 | @retval EFI_DEVICE_ERROR\r | |
217 | ATAPI Identify Device Command failed or device type\r | |
218 | is not supported by this IDE driver.\r | |
219 | \r | |
220 | @note\r | |
221 | Parameter "IdeDev" will be updated in this function.\r | |
222 | \r | |
223 | TODO: EFI_OUT_OF_RESOURCES - add return value to function comment\r | |
224 | TODO: EFI_OUT_OF_RESOURCES - add return value to function comment\r | |
225 | **/\r | |
878ddf1f | 226 | EFI_STATUS\r |
227 | ATAPIIdentify (\r | |
228 | IN IDE_BLK_IO_DEV *IdeDev\r | |
229 | )\r | |
878ddf1f | 230 | {\r |
231 | EFI_IDENTIFY_DATA *AtapiIdentifyPointer;\r | |
232 | UINT8 DeviceSelect;\r | |
233 | EFI_STATUS Status;\r | |
234 | \r | |
235 | //\r | |
236 | // device select bit\r | |
237 | //\r | |
238 | DeviceSelect = 0;\r | |
239 | DeviceSelect = (UINT8) ((IdeDev->Device) << 4);\r | |
240 | \r | |
241 | AtapiIdentifyPointer = AllocatePool (sizeof (EFI_IDENTIFY_DATA));\r | |
242 | if (AtapiIdentifyPointer == NULL) {\r | |
243 | return EFI_OUT_OF_RESOURCES;\r | |
244 | }\r | |
245 | //\r | |
246 | // Send ATAPI Identify Command to get IDENTIFY data.\r | |
247 | //\r | |
248 | Status = AtaPioDataIn (\r | |
249 | IdeDev,\r | |
250 | (VOID *) AtapiIdentifyPointer,\r | |
251 | sizeof (EFI_IDENTIFY_DATA),\r | |
252 | ATAPI_IDENTIFY_DEVICE_CMD,\r | |
253 | DeviceSelect,\r | |
254 | 0,\r | |
255 | 0,\r | |
256 | 0,\r | |
257 | 0\r | |
258 | );\r | |
259 | \r | |
260 | if (EFI_ERROR (Status)) {\r | |
261 | gBS->FreePool (AtapiIdentifyPointer);\r | |
262 | return EFI_DEVICE_ERROR;\r | |
263 | }\r | |
264 | \r | |
265 | IdeDev->pIdData = AtapiIdentifyPointer;\r | |
266 | PrintAtaModuleName (IdeDev);\r | |
267 | \r | |
268 | //\r | |
269 | // Send ATAPI Inquiry Packet Command to get INQUIRY data.\r | |
270 | //\r | |
271 | Status = AtapiInquiry (IdeDev);\r | |
272 | if (EFI_ERROR (Status)) {\r | |
273 | gBS->FreePool (IdeDev->pIdData);\r | |
274 | //\r | |
275 | // Make sure the pIdData will not be freed again.\r | |
276 | //\r | |
277 | IdeDev->pIdData = NULL;\r | |
278 | return EFI_DEVICE_ERROR;\r | |
279 | }\r | |
280 | //\r | |
281 | // Get media removable info from INQUIRY data.\r | |
282 | //\r | |
283 | IdeDev->BlkIo.Media->RemovableMedia = (UINT8) ((IdeDev->pInquiryData->RMB & 0x80) == 0x80);\r | |
284 | \r | |
285 | //\r | |
286 | // Identify device type via INQUIRY data.\r | |
287 | //\r | |
288 | switch (IdeDev->pInquiryData->peripheral_type & 0x1f) {\r | |
289 | \r | |
290 | //\r | |
291 | // Magnetic Disk\r | |
292 | //\r | |
293 | case 0x00:\r | |
294 | \r | |
295 | //\r | |
296 | // device is LS120 or ZIP drive.\r | |
297 | //\r | |
298 | IdeDev->Type = IdeMagnetic;\r | |
299 | \r | |
300 | IdeDev->BlkIo.Media->MediaId = 0;\r | |
301 | //\r | |
302 | // Give initial value\r | |
303 | //\r | |
304 | IdeDev->BlkIo.Media->MediaPresent = FALSE;\r | |
305 | \r | |
306 | IdeDev->BlkIo.Media->LastBlock = 0;\r | |
307 | IdeDev->BlkIo.Media->BlockSize = 0x200;\r | |
308 | break;\r | |
309 | \r | |
310 | //\r | |
311 | // CD-ROM\r | |
312 | //\r | |
313 | case 0x05:\r | |
314 | \r | |
315 | IdeDev->Type = IdeCdRom;\r | |
316 | IdeDev->BlkIo.Media->MediaId = 0;\r | |
317 | //\r | |
318 | // Give initial value\r | |
319 | //\r | |
320 | IdeDev->BlkIo.Media->MediaPresent = FALSE;\r | |
321 | \r | |
322 | IdeDev->BlkIo.Media->LastBlock = 0;\r | |
323 | IdeDev->BlkIo.Media->BlockSize = 0x800;\r | |
324 | IdeDev->BlkIo.Media->ReadOnly = TRUE;\r | |
325 | break;\r | |
326 | \r | |
327 | //\r | |
328 | // Tape\r | |
329 | //\r | |
330 | case 0x01:\r | |
331 | \r | |
332 | //\r | |
333 | // WORM\r | |
334 | //\r | |
335 | case 0x04:\r | |
336 | \r | |
337 | //\r | |
338 | // Optical\r | |
339 | //\r | |
340 | case 0x07:\r | |
341 | \r | |
342 | default:\r | |
343 | IdeDev->Type = IdeUnknown;\r | |
344 | gBS->FreePool (IdeDev->pIdData);\r | |
345 | gBS->FreePool (IdeDev->pInquiryData);\r | |
346 | //\r | |
347 | // Make sure the pIdData and pInquiryData will not be freed again.\r | |
348 | //\r | |
349 | IdeDev->pIdData = NULL;\r | |
350 | IdeDev->pInquiryData = NULL;\r | |
351 | return EFI_DEVICE_ERROR;\r | |
352 | }\r | |
353 | \r | |
354 | //\r | |
355 | // original sense data numbers\r | |
356 | //\r | |
357 | IdeDev->SenseDataNumber = 20;\r | |
358 | \r | |
359 | IdeDev->SenseData = AllocatePool (IdeDev->SenseDataNumber * sizeof (REQUEST_SENSE_DATA));\r | |
360 | if (IdeDev->SenseData == NULL) {\r | |
361 | gBS->FreePool (IdeDev->pIdData);\r | |
362 | gBS->FreePool (IdeDev->pInquiryData);\r | |
363 | //\r | |
364 | // Make sure the pIdData and pInquiryData will not be freed again.\r | |
365 | //\r | |
366 | IdeDev->pIdData = NULL;\r | |
367 | IdeDev->pInquiryData = NULL;\r | |
368 | return EFI_OUT_OF_RESOURCES;\r | |
369 | }\r | |
370 | \r | |
371 | return EFI_SUCCESS;\r | |
372 | }\r | |
373 | \r | |
ed72955c | 374 | /**\r |
375 | Sends out ATAPI Inquiry Packet Command to the specified device.\r | |
376 | This command will return INQUIRY data of the device.\r | |
377 | \r | |
378 | @param[in] *IdeDev\r | |
379 | pointer pointing to IDE_BLK_IO_DEV data structure, used\r | |
380 | to record all the information of the IDE device.\r | |
381 | \r | |
382 | @retval EFI_SUCCESS\r | |
383 | Inquiry command completes successfully.\r | |
384 | \r | |
385 | @retval EFI_DEVICE_ERROR\r | |
386 | Inquiry command failed.\r | |
387 | \r | |
388 | @note\r | |
389 | Parameter "IdeDev" will be updated in this function.\r | |
390 | \r | |
391 | **/\r | |
878ddf1f | 392 | EFI_STATUS\r |
393 | AtapiInquiry (\r | |
394 | IN IDE_BLK_IO_DEV *IdeDev\r | |
395 | )\r | |
878ddf1f | 396 | {\r |
397 | ATAPI_PACKET_COMMAND Packet;\r | |
398 | EFI_STATUS Status;\r | |
399 | INQUIRY_DATA *InquiryData;\r | |
400 | \r | |
401 | //\r | |
402 | // prepare command packet for the ATAPI Inquiry Packet Command.\r | |
403 | //\r | |
404 | ZeroMem (&Packet, sizeof (ATAPI_PACKET_COMMAND));\r | |
405 | Packet.Inquiry.opcode = INQUIRY;\r | |
406 | Packet.Inquiry.page_code = 0;\r | |
407 | Packet.Inquiry.allocation_length = sizeof (INQUIRY_DATA);\r | |
408 | \r | |
409 | InquiryData = AllocatePool (sizeof (INQUIRY_DATA));\r | |
410 | if (InquiryData == NULL) {\r | |
411 | return EFI_DEVICE_ERROR;\r | |
412 | }\r | |
413 | \r | |
414 | //\r | |
415 | // Send command packet and get requested Inquiry data.\r | |
416 | //\r | |
417 | Status = AtapiPacketCommandIn (\r | |
418 | IdeDev,\r | |
419 | &Packet,\r | |
420 | (UINT16 *) InquiryData,\r | |
421 | sizeof (INQUIRY_DATA),\r | |
422 | ATAPITIMEOUT\r | |
423 | );\r | |
424 | if (EFI_ERROR (Status)) {\r | |
425 | gBS->FreePool (InquiryData);\r | |
426 | return EFI_DEVICE_ERROR;\r | |
427 | }\r | |
428 | \r | |
429 | IdeDev->pInquiryData = InquiryData;\r | |
430 | \r | |
431 | return EFI_SUCCESS;\r | |
432 | }\r | |
433 | \r | |
ed72955c | 434 | /**\r |
435 | This function is used to send out ATAPI commands conforms to the \r | |
436 | Packet Command with PIO Data In Protocol.\r | |
437 | \r | |
438 | @param[in] *IdeDev\r | |
439 | pointer pointing to IDE_BLK_IO_DEV data structure, used\r | |
440 | to record all the information of the IDE device.\r | |
441 | \r | |
442 | @param[in] *Packet\r | |
443 | pointer pointing to ATAPI_PACKET_COMMAND data structure\r | |
444 | which contains the contents of the command. \r | |
445 | \r | |
446 | @param[in] *Buffer\r | |
447 | buffer contained data transferred from device to host.\r | |
448 | \r | |
449 | @param[in] ByteCount\r | |
450 | data size in byte unit of the buffer.\r | |
451 | \r | |
452 | @param[in] TimeOut\r | |
453 | this parameter is used to specify the timeout \r | |
454 | value for the PioReadWriteData() function. \r | |
455 | \r | |
456 | @retval EFI_SUCCESS\r | |
457 | send out the ATAPI packet command successfully\r | |
458 | and device sends data successfully.\r | |
459 | \r | |
460 | @retval EFI_DEVICE_ERROR\r | |
461 | the device failed to send data.\r | |
462 | \r | |
463 | **/\r | |
878ddf1f | 464 | EFI_STATUS\r |
465 | AtapiPacketCommandIn (\r | |
466 | IN IDE_BLK_IO_DEV *IdeDev,\r | |
467 | IN ATAPI_PACKET_COMMAND *Packet,\r | |
468 | IN UINT16 *Buffer,\r | |
469 | IN UINT32 ByteCount,\r | |
470 | IN UINTN TimeOut\r | |
471 | )\r | |
878ddf1f | 472 | {\r |
473 | UINT16 *CommandIndex;\r | |
474 | EFI_STATUS Status;\r | |
475 | UINT32 Count;\r | |
476 | \r | |
477 | //\r | |
478 | // Set all the command parameters by fill related registers.\r | |
479 | // Before write to all the following registers, BSY and DRQ must be 0.\r | |
480 | //\r | |
481 | Status = DRQClear2 (IdeDev, ATAPITIMEOUT);\r | |
482 | if (EFI_ERROR (Status)) {\r | |
483 | return Status;\r | |
484 | }\r | |
485 | \r | |
486 | //\r | |
487 | // Select device via Device/Head Register.\r | |
488 | //\r | |
489 | IDEWritePortB (\r | |
490 | IdeDev->PciIo,\r | |
491 | IdeDev->IoPort->Head,\r | |
492 | (UINT8) ((IdeDev->Device << 4) | DEFAULT_CMD) // DEFAULT_CMD: 0xa0 (1010,0000)\r | |
493 | );\r | |
494 | \r | |
495 | //\r | |
496 | // No OVL; No DMA\r | |
497 | //\r | |
498 | IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->Reg1.Feature, 0x00);\r | |
499 | \r | |
500 | //\r | |
501 | // set the transfersize to MAX_ATAPI_BYTE_COUNT to let the device\r | |
502 | // determine how many data should be transferred.\r | |
503 | //\r | |
504 | IDEWritePortB (\r | |
505 | IdeDev->PciIo,\r | |
506 | IdeDev->IoPort->CylinderLsb,\r | |
507 | (UINT8) (MAX_ATAPI_BYTE_COUNT & 0x00ff)\r | |
508 | );\r | |
509 | IDEWritePortB (\r | |
510 | IdeDev->PciIo,\r | |
511 | IdeDev->IoPort->CylinderMsb,\r | |
512 | (UINT8) (MAX_ATAPI_BYTE_COUNT >> 8)\r | |
513 | );\r | |
514 | \r | |
515 | //\r | |
516 | // DEFAULT_CTL:0x0a (0000,1010)\r | |
517 | // Disable interrupt\r | |
518 | //\r | |
519 | IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->Alt.DeviceControl, DEFAULT_CTL);\r | |
520 | \r | |
521 | //\r | |
522 | // Send Packet command to inform device\r | |
523 | // that the following data bytes are command packet.\r | |
524 | //\r | |
525 | IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->Reg.Command, PACKET_CMD);\r | |
526 | \r | |
527 | Status = DRQReady (IdeDev, ATAPITIMEOUT);\r | |
528 | if (EFI_ERROR (Status)) {\r | |
529 | return Status;\r | |
530 | }\r | |
531 | \r | |
532 | //\r | |
533 | // Send out command packet\r | |
534 | //\r | |
535 | CommandIndex = Packet->Data16;\r | |
536 | for (Count = 0; Count < 6; Count++, CommandIndex++) {\r | |
537 | \r | |
538 | IDEWritePortW (IdeDev->PciIo, IdeDev->IoPort->Data, *CommandIndex);\r | |
539 | gBS->Stall (10);\r | |
540 | }\r | |
541 | \r | |
542 | //\r | |
543 | // call PioReadWriteData() function to get\r | |
544 | // requested transfer data form device.\r | |
545 | //\r | |
546 | return PioReadWriteData (IdeDev, Buffer, ByteCount, 1, TimeOut);\r | |
547 | }\r | |
548 | \r | |
ed72955c | 549 | /**\r |
550 | This function is used to send out ATAPI commands conforms to the \r | |
551 | Packet Command with PIO Data Out Protocol.\r | |
552 | \r | |
553 | @param[in] *IdeDev\r | |
554 | pointer pointing to IDE_BLK_IO_DEV data structure, used\r | |
555 | to record all the information of the IDE device.\r | |
556 | \r | |
557 | @param[in] *Packet\r | |
558 | pointer pointing to ATAPI_PACKET_COMMAND data structure\r | |
559 | which contains the contents of the command.\r | |
560 | \r | |
561 | @param[in] *Buffer\r | |
562 | buffer contained data transferred from host to device.\r | |
563 | \r | |
564 | @param[in] ByteCount\r | |
565 | data size in byte unit of the buffer.\r | |
566 | \r | |
567 | @param[in] TimeOut\r | |
568 | this parameter is used to specify the timeout \r | |
569 | value for the PioReadWriteData() function. \r | |
570 | \r | |
571 | @retval EFI_SUCCESS\r | |
572 | send out the ATAPI packet command successfully\r | |
573 | and device received data successfully.\r | |
574 | \r | |
575 | @retval EFI_DEVICE_ERROR\r | |
576 | the device failed to send data.\r | |
577 | \r | |
578 | **/\r | |
878ddf1f | 579 | EFI_STATUS\r |
580 | AtapiPacketCommandOut (\r | |
581 | IN IDE_BLK_IO_DEV *IdeDev,\r | |
582 | IN ATAPI_PACKET_COMMAND *Packet,\r | |
583 | IN UINT16 *Buffer,\r | |
584 | IN UINT32 ByteCount,\r | |
585 | IN UINTN TimeOut\r | |
586 | )\r | |
878ddf1f | 587 | {\r |
588 | UINT16 *CommandIndex;\r | |
589 | EFI_STATUS Status;\r | |
590 | UINT32 Count;\r | |
591 | \r | |
592 | //\r | |
593 | // set all the command parameters\r | |
594 | // Before write to all the following registers, BSY and DRQ must be 0.\r | |
595 | //\r | |
596 | Status = DRQClear2 (IdeDev, ATAPITIMEOUT);\r | |
597 | if (EFI_ERROR (Status)) {\r | |
598 | return Status;\r | |
599 | }\r | |
600 | \r | |
601 | //\r | |
602 | // Select device via Device/Head Register.\r | |
603 | //\r | |
604 | IDEWritePortB (\r | |
605 | IdeDev->PciIo,\r | |
606 | IdeDev->IoPort->Head,\r | |
607 | (UINT8) ((IdeDev->Device << 4) | DEFAULT_CMD) // DEFAULT_CMD: 0xa0 (1010,0000)\r | |
608 | );\r | |
609 | \r | |
610 | //\r | |
611 | // No OVL; No DMA\r | |
612 | //\r | |
613 | IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->Reg1.Feature, 0x00);\r | |
614 | \r | |
615 | //\r | |
616 | // set the transfersize to MAX_ATAPI_BYTE_COUNT to\r | |
617 | // let the device determine how many data should be transferred.\r | |
618 | //\r | |
619 | IDEWritePortB (\r | |
620 | IdeDev->PciIo,\r | |
621 | IdeDev->IoPort->CylinderLsb,\r | |
622 | (UINT8) (MAX_ATAPI_BYTE_COUNT & 0x00ff)\r | |
623 | );\r | |
624 | IDEWritePortB (\r | |
625 | IdeDev->PciIo,\r | |
626 | IdeDev->IoPort->CylinderMsb,\r | |
627 | (UINT8) (MAX_ATAPI_BYTE_COUNT >> 8)\r | |
628 | );\r | |
629 | \r | |
630 | //\r | |
631 | // DEFAULT_CTL:0x0a (0000,1010)\r | |
632 | // Disable interrupt\r | |
633 | //\r | |
634 | IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->Alt.DeviceControl, DEFAULT_CTL);\r | |
635 | \r | |
636 | //\r | |
637 | // Send Packet command to inform device\r | |
638 | // that the following data bytes are command packet.\r | |
639 | //\r | |
640 | IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->Reg.Command, PACKET_CMD);\r | |
641 | \r | |
642 | Status = DRQReady2 (IdeDev, ATAPITIMEOUT);\r | |
643 | if (EFI_ERROR (Status)) {\r | |
644 | return Status;\r | |
645 | }\r | |
646 | \r | |
647 | //\r | |
648 | // Send out command packet\r | |
649 | //\r | |
650 | CommandIndex = Packet->Data16;\r | |
651 | for (Count = 0; Count < 6; Count++, CommandIndex++) {\r | |
652 | IDEWritePortW (IdeDev->PciIo, IdeDev->IoPort->Data, *CommandIndex);\r | |
653 | gBS->Stall (10);\r | |
654 | }\r | |
655 | \r | |
656 | //\r | |
657 | // call PioReadWriteData() function to send requested transfer data to device.\r | |
658 | //\r | |
659 | return PioReadWriteData (IdeDev, Buffer, ByteCount, 0, TimeOut);\r | |
660 | }\r | |
661 | \r | |
ed72955c | 662 | /**\r |
663 | This function is called by either AtapiPacketCommandIn() or \r | |
664 | AtapiPacketCommandOut(). It is used to transfer data between\r | |
665 | host and device. The data direction is specified by the fourth\r | |
666 | parameter.\r | |
667 | \r | |
668 | @param[in] *IdeDev\r | |
669 | pointer pointing to IDE_BLK_IO_DEV data structure, used\r | |
670 | to record all the information of the IDE device.\r | |
671 | \r | |
672 | @param[in] *Buffer\r | |
673 | buffer contained data transferred between host and device.\r | |
674 | \r | |
675 | @param[in] ByteCount\r | |
676 | data size in byte unit of the buffer.\r | |
677 | \r | |
678 | @param[in] Read\r | |
679 | flag used to determine the data transfer direction.\r | |
680 | Read equals 1, means data transferred from device to host;\r | |
681 | Read equals 0, means data transferred from host to device.\r | |
682 | \r | |
683 | @param[in] TimeOut\r | |
684 | timeout value for wait DRQ ready before each data \r | |
685 | stream's transfer.\r | |
686 | \r | |
687 | @retval EFI_SUCCESS\r | |
688 | data is transferred successfully.\r | |
689 | \r | |
690 | @retval EFI_DEVICE_ERROR\r | |
691 | the device failed to transfer data.\r | |
692 | \r | |
693 | **/\r | |
878ddf1f | 694 | EFI_STATUS\r |
695 | PioReadWriteData (\r | |
696 | IN IDE_BLK_IO_DEV *IdeDev,\r | |
697 | IN UINT16 *Buffer,\r | |
698 | IN UINT32 ByteCount,\r | |
699 | IN BOOLEAN Read,\r | |
700 | IN UINTN TimeOut\r | |
701 | )\r | |
878ddf1f | 702 | {\r |
703 | //\r | |
704 | // required transfer data in word unit.\r | |
705 | //\r | |
706 | UINT32 RequiredWordCount;\r | |
707 | \r | |
708 | //\r | |
709 | // actual transfer data in word unit.\r | |
710 | //\r | |
711 | UINT32 ActualWordCount;\r | |
712 | UINT32 WordCount;\r | |
713 | EFI_STATUS Status;\r | |
714 | UINT16 *PtrBuffer;\r | |
715 | \r | |
878ddf1f | 716 | //\r |
717 | // No data transfer is premitted.\r | |
718 | //\r | |
719 | if (ByteCount == 0) {\r | |
720 | return EFI_SUCCESS;\r | |
721 | }\r | |
722 | //\r | |
723 | // for performance, we assert the ByteCount is an even number\r | |
724 | // which is actually a resonable assumption \r | |
725 | ASSERT((ByteCount%2) == 0);\r | |
726 | \r | |
727 | PtrBuffer = Buffer;\r | |
728 | RequiredWordCount = ByteCount / 2;\r | |
729 | //\r | |
730 | // ActuralWordCount means the word count of data really transferred.\r | |
731 | //\r | |
732 | ActualWordCount = 0;\r | |
733 | \r | |
734 | while (ActualWordCount < RequiredWordCount) {\r | |
735 | \r | |
736 | //\r | |
737 | // before each data transfer stream, the host should poll DRQ bit ready,\r | |
738 | // to see whether indicates device is ready to transfer data.\r | |
739 | //\r | |
740 | Status = DRQReady2 (IdeDev, TimeOut);\r | |
741 | if (EFI_ERROR (Status)) {\r | |
742 | return CheckErrorStatus (IdeDev);\r | |
743 | }\r | |
744 | \r | |
745 | //\r | |
746 | // read Status Register will clear interrupt\r | |
747 | //\r | |
1cc8ee78 | 748 | IDEReadPortB (IdeDev->PciIo, IdeDev->IoPort->Reg.Status);\r |
878ddf1f | 749 | \r |
750 | //\r | |
751 | // get current data transfer size from Cylinder Registers.\r | |
752 | //\r | |
1cc8ee78 | 753 | WordCount = IDEReadPortB (IdeDev->PciIo, IdeDev->IoPort->CylinderMsb) << 8;\r |
754 | WordCount = WordCount | IDEReadPortB (IdeDev->PciIo, IdeDev->IoPort->CylinderLsb);\r | |
755 | WordCount = WordCount & 0xffff;\r | |
878ddf1f | 756 | WordCount /= 2;\r |
757 | \r | |
758 | WordCount = EFI_MIN (WordCount, (RequiredWordCount - ActualWordCount));\r | |
759 | \r | |
760 | if (Read) {\r | |
761 | IDEReadPortWMultiple (\r | |
762 | IdeDev->PciIo,\r | |
763 | IdeDev->IoPort->Data,\r | |
764 | WordCount,\r | |
765 | PtrBuffer\r | |
766 | );\r | |
767 | } else {\r | |
768 | IDEWritePortWMultiple (\r | |
769 | IdeDev->PciIo,\r | |
770 | IdeDev->IoPort->Data,\r | |
771 | WordCount,\r | |
772 | PtrBuffer\r | |
773 | );\r | |
774 | }\r | |
775 | \r | |
776 | PtrBuffer += WordCount;\r | |
777 | ActualWordCount += WordCount;\r | |
778 | }\r | |
a98f11c5 | 779 | \r |
780 | if (Read) {\r | |
781 | //\r | |
782 | // In the case where the drive wants to send more data than we need to read,\r | |
783 | // the DRQ bit will be set and cause delays from DRQClear2().\r | |
784 | // We need to read data from the drive until it clears DRQ so we can move on.\r | |
785 | //\r | |
786 | AtapiReadPendingData (IdeDev);\r | |
787 | }\r | |
878ddf1f | 788 | \r |
789 | //\r | |
790 | // After data transfer is completed, normally, DRQ bit should clear.\r | |
791 | //\r | |
792 | Status = DRQClear2 (IdeDev, ATAPITIMEOUT);\r | |
793 | if (EFI_ERROR (Status)) {\r | |
794 | return EFI_DEVICE_ERROR;\r | |
795 | }\r | |
796 | \r | |
797 | //\r | |
798 | // read status register to check whether error happens.\r | |
799 | //\r | |
800 | return CheckErrorStatus (IdeDev);\r | |
801 | }\r | |
802 | \r | |
ed72955c | 803 | /**\r |
804 | Sends out ATAPI Test Unit Ready Packet Command to the specified device\r | |
805 | to find out whether device is accessible.\r | |
806 | \r | |
a98f11c5 | 807 | @param[in] *IdeDev Pointer pointing to IDE_BLK_IO_DEV data structure, used\r |
808 | to record all the information of the IDE device.\r | |
809 | @param[in] *SenseCount Sense count for this packet command\r | |
ed72955c | 810 | \r |
a98f11c5 | 811 | @retval EFI_SUCCESS Device is accessible.\r |
812 | @retval EFI_DEVICE_ERROR Device is not accessible.\r | |
ed72955c | 813 | \r |
814 | **/\r | |
878ddf1f | 815 | EFI_STATUS\r |
816 | AtapiTestUnitReady (\r | |
a98f11c5 | 817 | IN IDE_BLK_IO_DEV *IdeDev,\r |
818 | OUT UINTN *SenseCount\r | |
878ddf1f | 819 | )\r |
878ddf1f | 820 | {\r |
821 | ATAPI_PACKET_COMMAND Packet;\r | |
822 | EFI_STATUS Status;\r | |
823 | \r | |
a98f11c5 | 824 | *SenseCount = 0;\r |
825 | \r | |
878ddf1f | 826 | //\r |
827 | // fill command packet\r | |
828 | //\r | |
829 | ZeroMem (&Packet, sizeof (ATAPI_PACKET_COMMAND));\r | |
830 | Packet.TestUnitReady.opcode = TEST_UNIT_READY;\r | |
831 | \r | |
832 | //\r | |
833 | // send command packet\r | |
834 | //\r | |
835 | Status = AtapiPacketCommandIn (IdeDev, &Packet, NULL, 0, ATAPITIMEOUT);\r | |
a98f11c5 | 836 | if (EFI_ERROR (Status)) {\r |
837 | return Status;\r | |
838 | }\r | |
839 | \r | |
840 | Status = AtapiRequestSense (IdeDev, SenseCount);\r | |
841 | if (EFI_ERROR (Status)) {\r | |
842 | *SenseCount = 0;\r | |
843 | return Status;\r | |
844 | }\r | |
845 | \r | |
846 | return EFI_SUCCESS;\r | |
878ddf1f | 847 | }\r |
848 | \r | |
ed72955c | 849 | /**\r |
850 | Sends out ATAPI Request Sense Packet Command to the specified device.\r | |
851 | This command will return all the current Sense data in the device. \r | |
852 | This function will pack all the Sense data in one single buffer.\r | |
878ddf1f | 853 | \r |
ed72955c | 854 | @param[in] *IdeDev\r |
855 | pointer pointing to IDE_BLK_IO_DEV data structure, used\r | |
856 | to record all the information of the IDE device.\r | |
878ddf1f | 857 | \r |
ed72955c | 858 | @param[out] **SenseBuffers\r |
859 | allocated in this function, and freed by the calling function.\r | |
860 | This buffer is used to accommodate all the sense data returned \r | |
861 | by the device.\r | |
878ddf1f | 862 | \r |
ed72955c | 863 | @param[out] *BufUnit\r |
864 | record the unit size of the sense data block in the SenseBuffers,\r | |
878ddf1f | 865 | \r |
ed72955c | 866 | @param[out] *BufNumbers\r |
867 | record the number of units in the SenseBuffers.\r | |
878ddf1f | 868 | \r |
ed72955c | 869 | @retval EFI_SUCCESS\r |
870 | Request Sense command completes successfully.\r | |
871 | \r | |
872 | @retval EFI_DEVICE_ERROR\r | |
873 | Request Sense command failed.\r | |
878ddf1f | 874 | \r |
ed72955c | 875 | **/\r |
876 | EFI_STATUS\r | |
877 | AtapiRequestSense (\r | |
878 | IN IDE_BLK_IO_DEV *IdeDev,\r | |
879 | OUT UINTN *SenseCounts\r | |
880 | )\r | |
878ddf1f | 881 | {\r |
882 | EFI_STATUS Status;\r | |
883 | REQUEST_SENSE_DATA *Sense;\r | |
884 | UINT16 *Ptr;\r | |
885 | BOOLEAN FetchSenseData;\r | |
886 | ATAPI_PACKET_COMMAND Packet;\r | |
887 | \r | |
888 | *SenseCounts = 0;\r | |
889 | \r | |
890 | ZeroMem (IdeDev->SenseData, sizeof (REQUEST_SENSE_DATA) * (IdeDev->SenseDataNumber));\r | |
891 | //\r | |
892 | // fill command packet for Request Sense Packet Command\r | |
893 | //\r | |
894 | ZeroMem (&Packet, sizeof (ATAPI_PACKET_COMMAND));\r | |
895 | Packet.RequestSence.opcode = REQUEST_SENSE;\r | |
896 | Packet.RequestSence.allocation_length = sizeof (REQUEST_SENSE_DATA);\r | |
897 | \r | |
898 | //\r | |
899 | // initialize pointer\r | |
900 | //\r | |
901 | Ptr = (UINT16 *) IdeDev->SenseData;\r | |
902 | //\r | |
903 | // request sense data from device continuously until no sense data\r | |
904 | // exists in the device.\r | |
905 | //\r | |
906 | for (FetchSenseData = TRUE; FetchSenseData;) {\r | |
907 | \r | |
908 | Sense = (REQUEST_SENSE_DATA *) Ptr;\r | |
909 | \r | |
910 | //\r | |
911 | // send out Request Sense Packet Command and get one Sense data form device\r | |
912 | //\r | |
913 | Status = AtapiPacketCommandIn (\r | |
914 | IdeDev,\r | |
915 | &Packet,\r | |
916 | Ptr,\r | |
917 | sizeof (REQUEST_SENSE_DATA),\r | |
918 | ATAPITIMEOUT\r | |
919 | );\r | |
920 | //\r | |
921 | // failed to get Sense data\r | |
922 | //\r | |
923 | if (EFI_ERROR (Status)) {\r | |
924 | if (*SenseCounts == 0) {\r | |
925 | return EFI_DEVICE_ERROR;\r | |
926 | } else {\r | |
927 | return EFI_SUCCESS;\r | |
928 | }\r | |
929 | }\r | |
930 | \r | |
931 | (*SenseCounts)++;\r | |
932 | //\r | |
933 | // We limit MAX sense data count to 20 in order to avoid dead loop. Some\r | |
934 | // incompatible ATAPI devices don't retrive NO_SENSE when there is no media.\r | |
935 | // In this case, dead loop occurs if we don't have a gatekeeper. 20 is\r | |
936 | // supposed to be large enough for any ATAPI device.\r | |
937 | //\r | |
938 | if ((Sense->sense_key != SK_NO_SENSE) && ((*SenseCounts) < 20)) {\r | |
939 | //\r | |
940 | // Ptr is word-based pointer\r | |
941 | //\r | |
a98f11c5 | 942 | Ptr += (sizeof (REQUEST_SENSE_DATA) + 1) >> 1;\r |
878ddf1f | 943 | \r |
944 | } else {\r | |
945 | //\r | |
946 | // when no sense key, skip out the loop\r | |
947 | //\r | |
948 | FetchSenseData = FALSE;\r | |
949 | }\r | |
950 | }\r | |
951 | \r | |
952 | return EFI_SUCCESS;\r | |
953 | }\r | |
954 | \r | |
ed72955c | 955 | /**\r |
956 | Sends out ATAPI Read Capacity Packet Command to the specified device.\r | |
957 | This command will return the information regarding the capacity of the\r | |
958 | media in the device.\r | |
959 | \r | |
960 | Current device status will impact device's response to the Read Capacity\r | |
961 | Command. For example, if the device once reset, the Read Capacity\r | |
962 | Command will fail. The Sense data record the current device status, so \r | |
963 | if the Read Capacity Command failed, the Sense data must be requested\r | |
964 | and be analyzed to determine if the Read Capacity Command should retry.\r | |
965 | \r | |
a98f11c5 | 966 | @param[in] *IdeDev Pointer pointing to IDE_BLK_IO_DEV data structure, used\r |
967 | to record all the information of the IDE device.\r | |
968 | @param[in] SenseCount Sense count for this packet command\r | |
ed72955c | 969 | \r |
a98f11c5 | 970 | @retval EFI_SUCCESS Read Capacity Command finally completes successfully.\r |
971 | @retval EFI_DEVICE_ERROR Read Capacity Command failed because of device error.\r | |
ed72955c | 972 | \r |
a98f11c5 | 973 | @note Parameter "IdeDev" will be updated in this function.\r |
ed72955c | 974 | \r |
975 | TODO: EFI_NOT_READY - add return value to function comment\r | |
976 | **/\r | |
878ddf1f | 977 | EFI_STATUS\r |
978 | AtapiReadCapacity (\r | |
a98f11c5 | 979 | IN IDE_BLK_IO_DEV *IdeDev,\r |
980 | OUT UINTN *SenseCount\r | |
878ddf1f | 981 | )\r |
878ddf1f | 982 | {\r |
983 | //\r | |
984 | // status returned by Read Capacity Packet Command\r | |
985 | //\r | |
986 | EFI_STATUS Status;\r | |
a98f11c5 | 987 | EFI_STATUS SenseStatus;\r |
878ddf1f | 988 | ATAPI_PACKET_COMMAND Packet;\r |
989 | \r | |
990 | //\r | |
991 | // used for capacity data returned from ATAPI device\r | |
992 | //\r | |
993 | READ_CAPACITY_DATA Data;\r | |
994 | READ_FORMAT_CAPACITY_DATA FormatData;\r | |
995 | \r | |
a98f11c5 | 996 | *SenseCount = 0;\r |
997 | \r | |
878ddf1f | 998 | ZeroMem (&Data, sizeof (Data));\r |
999 | ZeroMem (&FormatData, sizeof (FormatData));\r | |
1000 | \r | |
1001 | if (IdeDev->Type == IdeCdRom) {\r | |
1002 | \r | |
1003 | ZeroMem (&Packet, sizeof (ATAPI_PACKET_COMMAND));\r | |
1004 | Packet.Inquiry.opcode = READ_CAPACITY;\r | |
1005 | Status = AtapiPacketCommandIn (\r | |
a98f11c5 | 1006 | IdeDev,\r |
1007 | &Packet,\r | |
1008 | (UINT16 *) &Data,\r | |
1009 | sizeof (READ_CAPACITY_DATA),\r | |
1010 | ATAPITIMEOUT\r | |
1011 | );\r | |
878ddf1f | 1012 | \r |
1013 | } else {\r | |
1014 | //\r | |
1015 | // Type == IdeMagnetic\r | |
1016 | //\r | |
1017 | ZeroMem (&Packet, sizeof (ATAPI_PACKET_COMMAND));\r | |
1018 | Packet.ReadFormatCapacity.opcode = READ_FORMAT_CAPACITY;\r | |
1019 | Packet.ReadFormatCapacity.allocation_length_lo = 12;\r | |
1020 | Status = AtapiPacketCommandIn (\r | |
a98f11c5 | 1021 | IdeDev,\r |
1022 | &Packet,\r | |
1023 | (UINT16 *) &FormatData,\r | |
1024 | sizeof (READ_FORMAT_CAPACITY_DATA),\r | |
1025 | ATAPITIMEOUT\r | |
1026 | );\r | |
878ddf1f | 1027 | }\r |
1028 | \r | |
a98f11c5 | 1029 | if (Status == EFI_TIMEOUT) {\r |
1030 | *SenseCount = 0;\r | |
1031 | return Status;\r | |
1032 | }\r | |
878ddf1f | 1033 | \r |
a98f11c5 | 1034 | SenseStatus = AtapiRequestSense (IdeDev, SenseCount);\r |
878ddf1f | 1035 | \r |
a98f11c5 | 1036 | if (!EFI_ERROR (SenseStatus)) {\r |
878ddf1f | 1037 | \r |
a98f11c5 | 1038 | if (!EFI_ERROR (Status)) {\r |
878ddf1f | 1039 | \r |
a98f11c5 | 1040 | if (IdeDev->Type == IdeCdRom) {\r |
878ddf1f | 1041 | \r |
a98f11c5 | 1042 | IdeDev->BlkIo.Media->LastBlock = (Data.LastLba3 << 24) |\r |
1043 | (Data.LastLba2 << 16) |\r | |
1044 | (Data.LastLba1 << 8) |\r | |
1045 | Data.LastLba0;\r | |
878ddf1f | 1046 | \r |
878ddf1f | 1047 | if (IdeDev->BlkIo.Media->LastBlock != 0) {\r |
878ddf1f | 1048 | \r |
a98f11c5 | 1049 | IdeDev->BlkIo.Media->BlockSize = (Data.BlockSize3 << 24) |\r |
1050 | (Data.BlockSize2 << 16) |\r | |
1051 | (Data.BlockSize1 << 8) |\r | |
1052 | Data.BlockSize0;\r | |
878ddf1f | 1053 | \r |
1054 | IdeDev->BlkIo.Media->MediaPresent = TRUE;\r | |
1055 | } else {\r | |
1056 | IdeDev->BlkIo.Media->MediaPresent = FALSE;\r | |
a98f11c5 | 1057 | return EFI_DEVICE_ERROR;\r |
878ddf1f | 1058 | }\r |
1059 | \r | |
a98f11c5 | 1060 | IdeDev->BlkIo.Media->ReadOnly = TRUE;\r |
1061 | \r | |
1062 | //\r | |
1063 | // Because the user data portion in the sector of the Data CD supported\r | |
1064 | // is always 0x800\r | |
1065 | //\r | |
1066 | IdeDev->BlkIo.Media->BlockSize = 0x800;\r | |
1067 | }\r | |
1068 | \r | |
1069 | if (IdeDev->Type == IdeMagnetic) {\r | |
1070 | \r | |
1071 | if (FormatData.DesCode == 3) {\r | |
1072 | IdeDev->BlkIo.Media->MediaPresent = FALSE;\r | |
1073 | IdeDev->BlkIo.Media->LastBlock = 0;\r | |
1074 | } else {\r | |
1075 | \r | |
1076 | IdeDev->BlkIo.Media->LastBlock = (FormatData.LastLba3 << 24) |\r | |
1077 | (FormatData.LastLba2 << 16) | \r | |
1078 | (FormatData.LastLba1 << 8) |\r | |
1079 | FormatData.LastLba0;\r | |
1080 | if (IdeDev->BlkIo.Media->LastBlock != 0) {\r | |
1081 | IdeDev->BlkIo.Media->LastBlock--;\r | |
1082 | \r | |
1083 | IdeDev->BlkIo.Media->BlockSize = (FormatData.BlockSize2 << 16) |\r | |
1084 | (FormatData.BlockSize1 << 8) |\r | |
1085 | FormatData.BlockSize0;\r | |
1086 | \r | |
1087 | IdeDev->BlkIo.Media->MediaPresent = TRUE;\r | |
1088 | } else {\r | |
1089 | IdeDev->BlkIo.Media->MediaPresent = FALSE;\r | |
1090 | //\r | |
1091 | // Return EFI_NOT_READY operation succeeds but returned capacity is 0\r | |
1092 | //\r | |
1093 | return EFI_NOT_READY;\r | |
1094 | }\r | |
1095 | \r | |
1096 | IdeDev->BlkIo.Media->BlockSize = 0x200;\r | |
878ddf1f | 1097 | \r |
a98f11c5 | 1098 | }\r |
878ddf1f | 1099 | }\r |
1100 | }\r | |
1101 | \r | |
1102 | return EFI_SUCCESS;\r | |
1103 | \r | |
1104 | } else {\r | |
a98f11c5 | 1105 | *SenseCount = 0;\r |
878ddf1f | 1106 | return EFI_DEVICE_ERROR;\r |
1107 | }\r | |
1108 | }\r | |
1109 | \r | |
ed72955c | 1110 | /**\r |
1111 | Used before read/write blocks from/to ATAPI device media. \r | |
1112 | Since ATAPI device media is removable, it is necessary to detect\r | |
1113 | whether media is present and get current present media's\r | |
1114 | information, and if media has been changed, Block I/O Protocol\r | |
1115 | need to be reinstalled.\r | |
1116 | \r | |
1117 | @param[in] *IdeDev\r | |
1118 | pointer pointing to IDE_BLK_IO_DEV data structure, used\r | |
1119 | to record all the information of the IDE device.\r | |
1120 | \r | |
1121 | @param[out] *MediaChange\r | |
1122 | return value that indicates if the media of the device has been\r | |
1123 | changed.\r | |
1124 | \r | |
1125 | @retval EFI_SUCCESS\r | |
1126 | media found successfully.\r | |
1127 | \r | |
1128 | @retval EFI_DEVICE_ERROR\r | |
1129 | any error encounters during media detection.\r | |
1130 | \r | |
1131 | @retval EFI_NO_MEDIA\r | |
1132 | media not found.\r | |
1133 | \r | |
1134 | @note\r | |
1135 | parameter IdeDev may be updated in this function.\r | |
1136 | \r | |
1137 | **/\r | |
878ddf1f | 1138 | EFI_STATUS\r |
1139 | AtapiDetectMedia (\r | |
1140 | IN IDE_BLK_IO_DEV *IdeDev,\r | |
1141 | OUT BOOLEAN *MediaChange\r | |
1142 | )\r | |
878ddf1f | 1143 | {\r |
a98f11c5 | 1144 | EFI_STATUS Status;\r |
1145 | EFI_STATUS CleanStateStatus;\r | |
1146 | EFI_BLOCK_IO_MEDIA OldMediaInfo;\r | |
1147 | UINTN RetryTimes;\r | |
1148 | UINTN RetryNotReady;\r | |
1149 | UINTN SenseCount;\r | |
1150 | SENSE_RESULT SResult;\r | |
1151 | BOOLEAN WriteProtected;\r | |
878ddf1f | 1152 | \r |
a98f11c5 | 1153 | CopyMem (&OldMediaInfo, IdeDev->BlkIo.Media, sizeof (EFI_BLOCK_IO_MEDIA));\r |
1154 | *MediaChange = FALSE;\r | |
878ddf1f | 1155 | //\r |
a98f11c5 | 1156 | // Retry for SenseDeviceNotReadyNeedRetry.\r |
1157 | // Each retry takes 1s and we limit the upper boundary to\r | |
1158 | // 120 times about 2 min.\r | |
878ddf1f | 1159 | //\r |
a98f11c5 | 1160 | RetryNotReady = 120;\r |
878ddf1f | 1161 | \r |
1162 | //\r | |
a98f11c5 | 1163 | // Do Test Unit Ready\r |
878ddf1f | 1164 | //\r |
a98f11c5 | 1165 | DoTUR:\r |
878ddf1f | 1166 | //\r |
a98f11c5 | 1167 | // Retry 5 times\r |
878ddf1f | 1168 | //\r |
a98f11c5 | 1169 | RetryTimes = 5;\r |
1170 | while (RetryTimes != 0) {\r | |
878ddf1f | 1171 | \r |
a98f11c5 | 1172 | Status = AtapiTestUnitReady (IdeDev, &SenseCount);\r |
878ddf1f | 1173 | \r |
1174 | if (EFI_ERROR (Status)) {\r | |
878ddf1f | 1175 | //\r |
a98f11c5 | 1176 | // Test Unit Ready error without sense data.\r |
1177 | // For some devices, this means there's extra data\r | |
1178 | // that has not been read, so we read these extra\r | |
1179 | // data out before going on.\r | |
878ddf1f | 1180 | //\r |
a98f11c5 | 1181 | CleanStateStatus = AtapiReadPendingData (IdeDev);\r |
1182 | if (EFI_ERROR (CleanStateStatus)) {\r | |
878ddf1f | 1183 | //\r |
a98f11c5 | 1184 | // Busy wait failed, try again\r |
878ddf1f | 1185 | //\r |
a98f11c5 | 1186 | RetryTimes--;\r |
1187 | }\r | |
1188 | //\r | |
1189 | // Try again without counting down RetryTimes\r | |
1190 | //\r | |
1191 | continue;\r | |
1192 | } else {\r | |
1193 | \r | |
1194 | ParseSenseData (IdeDev, SenseCount, &SResult);\r | |
1195 | \r | |
1196 | switch (SResult) {\r | |
1197 | case SenseNoSenseKey:\r | |
1198 | if (IdeDev->BlkIo.Media->MediaPresent) {\r | |
1199 | goto Done;\r | |
878ddf1f | 1200 | } else {\r |
1201 | //\r | |
a98f11c5 | 1202 | // Media present but the internal structure need refreshed.\r |
1203 | // Try Read Capacity\r | |
878ddf1f | 1204 | //\r |
a98f11c5 | 1205 | goto DoRC;\r |
1206 | }\r | |
1207 | break;\r | |
1208 | \r | |
1209 | case SenseDeviceNotReadyNeedRetry:\r | |
1210 | if (--RetryNotReady == 0) {\r | |
1211 | return EFI_DEVICE_ERROR;\r | |
878ddf1f | 1212 | }\r |
a98f11c5 | 1213 | gBS->Stall (1000 * STALL_1_MILLI_SECOND);\r |
1214 | continue;\r | |
1215 | break;\r | |
1216 | \r | |
1217 | case SenseNoMedia:\r | |
1218 | IdeDev->BlkIo.Media->MediaPresent = FALSE;\r | |
1219 | IdeDev->BlkIo.Media->LastBlock = 0;\r | |
1220 | goto Done;\r | |
1221 | break;\r | |
1222 | \r | |
1223 | case SenseDeviceNotReadyNoRetry:\r | |
1224 | case SenseMediaError:\r | |
1225 | return EFI_DEVICE_ERROR;\r | |
1226 | \r | |
1227 | case SenseMediaChange:\r | |
1228 | IdeDev->BlkIo.Media->MediaId++;\r | |
1229 | goto DoRC;\r | |
1230 | break;\r | |
1231 | \r | |
1232 | default:\r | |
1233 | RetryTimes--;\r | |
1234 | break;\r | |
878ddf1f | 1235 | }\r |
878ddf1f | 1236 | }\r |
1237 | }\r | |
1238 | \r | |
a98f11c5 | 1239 | return EFI_DEVICE_ERROR;\r |
878ddf1f | 1240 | \r |
a98f11c5 | 1241 | //\r |
1242 | // Do Read Capacity\r | |
1243 | //\r | |
1244 | DoRC:\r | |
1245 | RetryTimes = 5;\r | |
878ddf1f | 1246 | \r |
a98f11c5 | 1247 | while (RetryTimes != 0) {\r |
878ddf1f | 1248 | \r |
a98f11c5 | 1249 | Status = AtapiReadCapacity (IdeDev, &SenseCount);\r |
878ddf1f | 1250 | \r |
a98f11c5 | 1251 | if (EFI_ERROR (Status)) {\r |
1252 | RetryTimes--;\r | |
1253 | continue;\r | |
878ddf1f | 1254 | } else {\r |
1255 | \r | |
a98f11c5 | 1256 | ParseSenseData (IdeDev, SenseCount, &SResult);\r |
878ddf1f | 1257 | \r |
a98f11c5 | 1258 | switch (SResult) {\r |
1259 | case SenseNoSenseKey:\r | |
1260 | goto Done;\r | |
1261 | break;\r | |
878ddf1f | 1262 | \r |
a98f11c5 | 1263 | case SenseDeviceNotReadyNeedRetry:\r |
878ddf1f | 1264 | //\r |
a98f11c5 | 1265 | // We use Test Unit Ready to retry which\r |
1266 | // is faster.\r | |
878ddf1f | 1267 | //\r |
a98f11c5 | 1268 | goto DoTUR;\r |
1269 | break;\r | |
878ddf1f | 1270 | \r |
a98f11c5 | 1271 | case SenseNoMedia:\r |
878ddf1f | 1272 | IdeDev->BlkIo.Media->MediaPresent = FALSE;\r |
1273 | IdeDev->BlkIo.Media->LastBlock = 0;\r | |
a98f11c5 | 1274 | goto Done;\r |
1275 | break;\r | |
878ddf1f | 1276 | \r |
a98f11c5 | 1277 | case SenseDeviceNotReadyNoRetry:\r |
1278 | case SenseMediaError:\r | |
878ddf1f | 1279 | return EFI_DEVICE_ERROR;\r |
a98f11c5 | 1280 | \r |
1281 | case SenseMediaChange:\r | |
878ddf1f | 1282 | IdeDev->BlkIo.Media->MediaId++;\r |
a98f11c5 | 1283 | continue;\r |
1284 | break;\r | |
878ddf1f | 1285 | \r |
a98f11c5 | 1286 | default:\r |
1287 | RetryTimes--;\r | |
1288 | break;\r | |
878ddf1f | 1289 | }\r |
878ddf1f | 1290 | }\r |
878ddf1f | 1291 | }\r |
878ddf1f | 1292 | \r |
a98f11c5 | 1293 | return EFI_DEVICE_ERROR;\r |
1294 | \r | |
1295 | Done:\r | |
878ddf1f | 1296 | //\r |
1297 | // the following code is to check the write-protected for LS120 media\r | |
1298 | //\r | |
1299 | if ((IdeDev->BlkIo.Media->MediaPresent) && (IdeDev->Type == IdeMagnetic)) {\r | |
1300 | \r | |
1301 | Status = IsLS120orZipWriteProtected (IdeDev, &WriteProtected);\r | |
1302 | if (!EFI_ERROR (Status)) {\r | |
1303 | \r | |
1304 | if (WriteProtected) {\r | |
1305 | \r | |
1306 | IdeDev->BlkIo.Media->ReadOnly = TRUE;\r | |
1307 | } else {\r | |
1308 | \r | |
1309 | IdeDev->BlkIo.Media->ReadOnly = FALSE;\r | |
1310 | }\r | |
1311 | \r | |
1312 | }\r | |
1313 | }\r | |
1314 | \r | |
1315 | if (IdeDev->BlkIo.Media->MediaId != OldMediaInfo.MediaId) {\r | |
1316 | //\r | |
1317 | // Media change information got from the device\r | |
1318 | //\r | |
1319 | *MediaChange = TRUE;\r | |
1320 | }\r | |
1321 | \r | |
1322 | if (IdeDev->BlkIo.Media->ReadOnly != OldMediaInfo.ReadOnly) {\r | |
1323 | *MediaChange = TRUE;\r | |
1324 | IdeDev->BlkIo.Media->MediaId += 1;\r | |
1325 | }\r | |
1326 | \r | |
1327 | if (IdeDev->BlkIo.Media->BlockSize != OldMediaInfo.BlockSize) {\r | |
1328 | *MediaChange = TRUE;\r | |
1329 | IdeDev->BlkIo.Media->MediaId += 1;\r | |
1330 | }\r | |
1331 | \r | |
1332 | if (IdeDev->BlkIo.Media->LastBlock != OldMediaInfo.LastBlock) {\r | |
1333 | *MediaChange = TRUE;\r | |
1334 | IdeDev->BlkIo.Media->MediaId += 1;\r | |
1335 | }\r | |
1336 | \r | |
1337 | if (IdeDev->BlkIo.Media->MediaPresent != OldMediaInfo.MediaPresent) {\r | |
1338 | if (IdeDev->BlkIo.Media->MediaPresent) {\r | |
1339 | //\r | |
1340 | // when change from no media to media present, reset the MediaId to 1.\r | |
1341 | //\r | |
1342 | IdeDev->BlkIo.Media->MediaId = 1;\r | |
1343 | } else {\r | |
1344 | //\r | |
1345 | // when no media, reset the MediaId to zero.\r | |
1346 | //\r | |
1347 | IdeDev->BlkIo.Media->MediaId = 0;\r | |
1348 | }\r | |
1349 | \r | |
1350 | *MediaChange = TRUE;\r | |
1351 | }\r | |
1352 | \r | |
1353 | //\r | |
1354 | // if any change on current existing media,\r | |
1355 | // the Block I/O protocol need to be reinstalled.\r | |
1356 | //\r | |
1357 | if (*MediaChange) {\r | |
1358 | gBS->ReinstallProtocolInterface (\r | |
1359 | IdeDev->Handle,\r | |
1360 | &gEfiBlockIoProtocolGuid,\r | |
1361 | &IdeDev->BlkIo,\r | |
1362 | &IdeDev->BlkIo\r | |
1363 | );\r | |
1364 | }\r | |
1365 | \r | |
a98f11c5 | 1366 | if (IdeDev->BlkIo.Media->MediaPresent) {\r |
1367 | return EFI_SUCCESS;\r | |
1368 | } else {\r | |
1369 | return EFI_NO_MEDIA;\r | |
1370 | }\r | |
878ddf1f | 1371 | }\r |
1372 | \r | |
ed72955c | 1373 | /**\r |
1374 | This function is called by the AtapiBlkIoReadBlocks() to perform\r | |
1375 | read from media in block unit.\r | |
1376 | \r | |
1377 | The main command used to access media here is READ(10) Command. \r | |
1378 | READ(10) Command requests that the ATAPI device media transfer \r | |
1379 | specified data to the host. Data is transferred in block(sector) \r | |
1380 | unit. The maximum number of blocks that can be transferred once is\r | |
1381 | 65536. This is the main difference between READ(10) and READ(12) \r | |
1382 | Command. The maximum number of blocks in READ(12) is 2 power 32.\r | |
1383 | \r | |
1384 | @param[in] *IdeDev\r | |
1385 | pointer pointing to IDE_BLK_IO_DEV data structure, used\r | |
1386 | to record all the information of the IDE device.\r | |
1387 | \r | |
1388 | @param[in] *Buffer\r | |
1389 | A pointer to the destination buffer for the data. \r | |
1390 | \r | |
1391 | @param[in] Lba\r | |
1392 | The starting logical block address to read from \r | |
1393 | on the device media.\r | |
1394 | \r | |
1395 | @param[in] NumberOfBlocks\r | |
1396 | The number of transfer data blocks.\r | |
1397 | \r | |
1398 | @return status is fully dependent on the return status\r | |
1399 | of AtapiPacketCommandIn() function.\r | |
1400 | \r | |
1401 | **/\r | |
878ddf1f | 1402 | EFI_STATUS\r |
1403 | AtapiReadSectors (\r | |
1404 | IN IDE_BLK_IO_DEV *IdeDev,\r | |
1405 | IN VOID *Buffer,\r | |
1406 | IN EFI_LBA Lba,\r | |
1407 | IN UINTN NumberOfBlocks\r | |
1408 | )\r | |
878ddf1f | 1409 | {\r |
1410 | \r | |
1411 | ATAPI_PACKET_COMMAND Packet;\r | |
1412 | READ10_CMD *Read10Packet;\r | |
1413 | EFI_STATUS Status;\r | |
1414 | UINTN BlocksRemaining;\r | |
1415 | UINT32 Lba32;\r | |
1416 | UINT32 BlockSize;\r | |
1417 | UINT32 ByteCount;\r | |
1418 | UINT16 SectorCount;\r | |
1419 | VOID *PtrBuffer;\r | |
1420 | UINT16 MaxBlock;\r | |
1421 | UINTN TimeOut;\r | |
1422 | \r | |
1423 | //\r | |
1424 | // fill command packet for Read(10) command\r | |
1425 | //\r | |
1426 | ZeroMem (&Packet, sizeof (ATAPI_PACKET_COMMAND));\r | |
1427 | Read10Packet = &Packet.Read10;\r | |
1428 | Lba32 = (UINT32) Lba;\r | |
1429 | PtrBuffer = Buffer;\r | |
1430 | \r | |
1431 | BlockSize = IdeDev->BlkIo.Media->BlockSize;\r | |
1432 | \r | |
1433 | //\r | |
1434 | // limit the data bytes that can be transferred by one Read(10) Command\r | |
1435 | //\r | |
a98f11c5 | 1436 | MaxBlock = 65535;\r |
878ddf1f | 1437 | \r |
1438 | BlocksRemaining = NumberOfBlocks;\r | |
1439 | \r | |
1440 | Status = EFI_SUCCESS;\r | |
1441 | while (BlocksRemaining > 0) {\r | |
1442 | \r | |
1443 | if (BlocksRemaining <= MaxBlock) {\r | |
1444 | \r | |
1445 | SectorCount = (UINT16) BlocksRemaining;\r | |
1446 | } else {\r | |
1447 | \r | |
1448 | SectorCount = MaxBlock;\r | |
1449 | }\r | |
1450 | \r | |
1451 | //\r | |
1452 | // fill the Packet data structure\r | |
1453 | //\r | |
1454 | \r | |
1455 | Read10Packet->opcode = READ_10;\r | |
1456 | \r | |
1457 | //\r | |
1458 | // Lba0 ~ Lba3 specify the start logical block address of the data transfer.\r | |
1459 | // Lba0 is MSB, Lba3 is LSB\r | |
1460 | //\r | |
1461 | Read10Packet->Lba3 = (UINT8) (Lba32 & 0xff);\r | |
1462 | Read10Packet->Lba2 = (UINT8) (Lba32 >> 8);\r | |
1463 | Read10Packet->Lba1 = (UINT8) (Lba32 >> 16);\r | |
1464 | Read10Packet->Lba0 = (UINT8) (Lba32 >> 24);\r | |
1465 | \r | |
1466 | //\r | |
1467 | // TranLen0 ~ TranLen1 specify the transfer length in block unit.\r | |
1468 | // TranLen0 is MSB, TranLen is LSB\r | |
1469 | //\r | |
1470 | Read10Packet->TranLen1 = (UINT8) (SectorCount & 0xff);\r | |
1471 | Read10Packet->TranLen0 = (UINT8) (SectorCount >> 8);\r | |
1472 | \r | |
1473 | ByteCount = SectorCount * BlockSize;\r | |
1474 | \r | |
1475 | if (IdeDev->Type == IdeCdRom) {\r | |
1476 | TimeOut = CDROMLONGTIMEOUT;\r | |
1477 | } else {\r | |
1478 | TimeOut = ATAPILONGTIMEOUT;\r | |
1479 | }\r | |
1480 | \r | |
1481 | Status = AtapiPacketCommandIn (\r | |
1482 | IdeDev,\r | |
1483 | &Packet,\r | |
1484 | (UINT16 *) PtrBuffer,\r | |
1485 | ByteCount,\r | |
1486 | TimeOut\r | |
1487 | );\r | |
1488 | if (EFI_ERROR (Status)) {\r | |
1489 | return Status;\r | |
1490 | }\r | |
1491 | \r | |
1492 | Lba32 += SectorCount;\r | |
1493 | PtrBuffer = (UINT8 *) PtrBuffer + SectorCount * BlockSize;\r | |
1494 | BlocksRemaining -= SectorCount;\r | |
1495 | }\r | |
1496 | \r | |
1497 | return Status;\r | |
1498 | }\r | |
1499 | \r | |
ed72955c | 1500 | /**\r |
1501 | This function is called by the AtapiBlkIoWriteBlocks() to perform\r | |
1502 | write onto media in block unit.\r | |
1503 | The main command used to access media here is Write(10) Command. \r | |
1504 | Write(10) Command requests that the ATAPI device media transfer \r | |
1505 | specified data to the host. Data is transferred in block (sector) \r | |
1506 | unit. The maximum number of blocks that can be transferred once is\r | |
1507 | 65536. \r | |
1508 | \r | |
1509 | @param[in] *IdeDev\r | |
1510 | pointer pointing to IDE_BLK_IO_DEV data structure, used\r | |
1511 | to record all the information of the IDE device.\r | |
1512 | \r | |
1513 | @param[in] *Buffer\r | |
1514 | A pointer to the source buffer for the data. \r | |
1515 | \r | |
1516 | @param[in] Lba\r | |
1517 | The starting logical block address to write onto \r | |
1518 | the device media.\r | |
1519 | \r | |
1520 | @param[in] NumberOfBlocks\r | |
1521 | The number of transfer data blocks.\r | |
1522 | \r | |
1523 | @return status is fully dependent on the return status\r | |
1524 | of AtapiPacketCommandOut() function.\r | |
1525 | \r | |
1526 | **/\r | |
878ddf1f | 1527 | EFI_STATUS\r |
1528 | AtapiWriteSectors (\r | |
1529 | IN IDE_BLK_IO_DEV *IdeDev,\r | |
1530 | IN VOID *Buffer,\r | |
1531 | IN EFI_LBA Lba,\r | |
1532 | IN UINTN NumberOfBlocks\r | |
1533 | )\r | |
878ddf1f | 1534 | {\r |
1535 | \r | |
1536 | ATAPI_PACKET_COMMAND Packet;\r | |
1537 | READ10_CMD *Read10Packet;\r | |
1538 | \r | |
1539 | EFI_STATUS Status;\r | |
1540 | UINTN BlocksRemaining;\r | |
1541 | UINT32 Lba32;\r | |
1542 | UINT32 BlockSize;\r | |
1543 | UINT32 ByteCount;\r | |
1544 | UINT16 SectorCount;\r | |
1545 | VOID *PtrBuffer;\r | |
1546 | UINT16 MaxBlock;\r | |
1547 | \r | |
1548 | //\r | |
1549 | // fill command packet for Write(10) command\r | |
1550 | // Write(10) command packet has the same data structure as\r | |
1551 | // Read(10) command packet,\r | |
1552 | // so here use the Read10Packet data structure\r | |
1553 | // for the Write(10) command packet.\r | |
1554 | //\r | |
1555 | ZeroMem (&Packet, sizeof (ATAPI_PACKET_COMMAND));\r | |
1556 | Read10Packet = &Packet.Read10;\r | |
1557 | \r | |
1558 | Lba32 = (UINT32) Lba;\r | |
1559 | PtrBuffer = Buffer;\r | |
1560 | \r | |
1561 | BlockSize = IdeDev->BlkIo.Media->BlockSize;\r | |
1562 | \r | |
1563 | //\r | |
1564 | // limit the data bytes that can be transferred by one Read(10) Command\r | |
1565 | //\r | |
1566 | MaxBlock = (UINT16) (65536 / BlockSize);\r | |
1567 | \r | |
1568 | BlocksRemaining = NumberOfBlocks;\r | |
1569 | \r | |
1570 | Status = EFI_SUCCESS;\r | |
1571 | while (BlocksRemaining > 0) {\r | |
1572 | \r | |
1573 | if (BlocksRemaining >= MaxBlock) {\r | |
1574 | SectorCount = MaxBlock;\r | |
1575 | } else {\r | |
1576 | SectorCount = (UINT16) BlocksRemaining;\r | |
1577 | }\r | |
1578 | \r | |
1579 | //\r | |
1580 | // Command code is WRITE_10.\r | |
1581 | //\r | |
1582 | Read10Packet->opcode = WRITE_10;\r | |
1583 | \r | |
1584 | //\r | |
1585 | // Lba0 ~ Lba3 specify the start logical block address of the data transfer.\r | |
1586 | // Lba0 is MSB, Lba3 is LSB\r | |
1587 | //\r | |
1588 | Read10Packet->Lba3 = (UINT8) (Lba32 & 0xff);\r | |
1589 | Read10Packet->Lba2 = (UINT8) (Lba32 >> 8);\r | |
1590 | Read10Packet->Lba1 = (UINT8) (Lba32 >> 16);\r | |
1591 | Read10Packet->Lba0 = (UINT8) (Lba32 >> 24);\r | |
1592 | \r | |
1593 | //\r | |
1594 | // TranLen0 ~ TranLen1 specify the transfer length in block unit.\r | |
1595 | // TranLen0 is MSB, TranLen is LSB\r | |
1596 | //\r | |
1597 | Read10Packet->TranLen1 = (UINT8) (SectorCount & 0xff);\r | |
1598 | Read10Packet->TranLen0 = (UINT8) (SectorCount >> 8);\r | |
1599 | \r | |
1600 | ByteCount = SectorCount * BlockSize;\r | |
1601 | \r | |
1602 | Status = AtapiPacketCommandOut (\r | |
1603 | IdeDev,\r | |
1604 | &Packet,\r | |
1605 | (UINT16 *) PtrBuffer,\r | |
1606 | ByteCount,\r | |
1607 | ATAPILONGTIMEOUT\r | |
1608 | );\r | |
1609 | if (EFI_ERROR (Status)) {\r | |
1610 | return Status;\r | |
1611 | }\r | |
1612 | \r | |
1613 | Lba32 += SectorCount;\r | |
1614 | PtrBuffer = ((UINT8 *) PtrBuffer + SectorCount * BlockSize);\r | |
1615 | BlocksRemaining -= SectorCount;\r | |
1616 | }\r | |
1617 | \r | |
1618 | return Status;\r | |
1619 | }\r | |
1620 | \r | |
ed72955c | 1621 | /**\r |
1622 | This function is used to implement the Soft Reset on the specified\r | |
1623 | ATAPI device. Different from the AtaSoftReset(), here reset is a ATA\r | |
1624 | Soft Reset Command special for ATAPI device, and it only take effects\r | |
1625 | on the specified ATAPI device, not on the whole IDE bus.\r | |
1626 | Since the ATAPI soft reset is needed when device is in exceptional\r | |
1627 | condition (such as BSY bit is always set ), I think the Soft Reset\r | |
1628 | command should be sent without waiting for the BSY clear and DRDY\r | |
1629 | set.\r | |
1630 | This function is called by IdeBlkIoReset(), \r | |
1631 | a interface function of Block I/O protocol.\r | |
1632 | \r | |
1633 | @param[in] *IdeDev\r | |
1634 | pointer pointing to IDE_BLK_IO_DEV data structure, used\r | |
1635 | to record all the information of the IDE device.\r | |
1636 | \r | |
1637 | @retval EFI_SUCCESS\r | |
1638 | Soft reset completes successfully.\r | |
1639 | \r | |
1640 | @retval EFI_DEVICE_ERROR\r | |
1641 | Any step during the reset process is failed.\r | |
1642 | \r | |
1643 | **/\r | |
878ddf1f | 1644 | EFI_STATUS\r |
1645 | AtapiSoftReset (\r | |
1646 | IN IDE_BLK_IO_DEV *IdeDev\r | |
1647 | )\r | |
878ddf1f | 1648 | {\r |
1649 | UINT8 Command;\r | |
1650 | UINT8 DeviceSelect;\r | |
1651 | EFI_STATUS Status;\r | |
1652 | \r | |
1653 | //\r | |
1654 | // for ATAPI device, no need to wait DRDY ready after device selecting.\r | |
1655 | // (bit7 and bit5 are both set to 1 for backward compatibility)\r | |
1656 | //\r | |
1657 | DeviceSelect = (UINT8) (((bit7 | bit5) | (IdeDev->Device << 4)));\r | |
1658 | IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->Head, DeviceSelect);\r | |
1659 | \r | |
1660 | Command = ATAPI_SOFT_RESET_CMD;\r | |
1661 | IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->Reg.Command, Command);\r | |
1662 | \r | |
1663 | //\r | |
1664 | // BSY cleared is the only status return to the host by the device\r | |
1665 | // when reset is completed.\r | |
1666 | // slave device needs at most 31s to clear BSY\r | |
1667 | //\r | |
1668 | Status = WaitForBSYClear (IdeDev, 31000);\r | |
1669 | if (EFI_ERROR (Status)) {\r | |
1670 | return EFI_DEVICE_ERROR;\r | |
1671 | }\r | |
1672 | \r | |
1673 | //\r | |
1674 | // stall 5 seconds to make the device status stable\r | |
1675 | //\r | |
1676 | gBS->Stall (5000000);\r | |
1677 | \r | |
1678 | return EFI_SUCCESS;\r | |
1679 | }\r | |
1680 | \r | |
ed72955c | 1681 | /**\r |
1682 | This function is the ATAPI implementation for ReadBlocks in the\r | |
1683 | Block I/O Protocol interface.\r | |
1684 | \r | |
1685 | @param[in] *IdeBlkIoDev\r | |
1686 | Indicates the calling context.\r | |
1687 | \r | |
1688 | @param[in] MediaId\r | |
1689 | The media id that the read request is for.\r | |
1690 | \r | |
1691 | @param[in] LBA\r | |
1692 | The starting logical block address to read from \r | |
1693 | on the device.\r | |
1694 | \r | |
1695 | @param[in] BufferSize\r | |
1696 | The size of the Buffer in bytes. This must be a\r | |
1697 | multiple of the intrinsic block size of the device.\r | |
1698 | \r | |
1699 | @param[out] *Buffer\r | |
1700 | A pointer to the destination buffer for the data. \r | |
1701 | The caller is responsible for either having implicit\r | |
1702 | or explicit ownership of the memory that data is read into.\r | |
1703 | \r | |
1704 | @retval EFI_SUCCESS\r | |
1705 | Read Blocks successfully.\r | |
1706 | \r | |
1707 | @retval EFI_DEVICE_ERROR\r | |
1708 | Read Blocks failed.\r | |
1709 | \r | |
1710 | @retval EFI_NO_MEDIA\r | |
1711 | There is no media in the device.\r | |
1712 | \r | |
1713 | @retval EFI_MEDIA_CHANGED\r | |
1714 | The MediaId is not for the current media.\r | |
1715 | \r | |
1716 | @retval EFI_BAD_BUFFER_SIZE\r | |
1717 | The BufferSize parameter is not a multiple of the\r | |
1718 | intrinsic block size of the device.\r | |
1719 | \r | |
1720 | @retval EFI_INVALID_PARAMETER\r | |
1721 | The read request contains LBAs that are not valid,\r | |
1722 | or the data buffer is not valid.\r | |
1723 | \r | |
1724 | **/\r | |
878ddf1f | 1725 | EFI_STATUS\r |
1726 | AtapiBlkIoReadBlocks (\r | |
1727 | IN IDE_BLK_IO_DEV *IdeBlkIoDevice,\r | |
1728 | IN UINT32 MediaId,\r | |
1729 | IN EFI_LBA LBA,\r | |
1730 | IN UINTN BufferSize,\r | |
1731 | OUT VOID *Buffer\r | |
1732 | )\r | |
878ddf1f | 1733 | {\r |
1734 | EFI_BLOCK_IO_MEDIA *Media;\r | |
1735 | UINTN BlockSize;\r | |
1736 | UINTN NumberOfBlocks;\r | |
1737 | EFI_STATUS Status;\r | |
1738 | \r | |
1739 | BOOLEAN MediaChange;\r | |
1740 | \r | |
1741 | if (Buffer == NULL) {\r | |
1742 | return EFI_INVALID_PARAMETER;\r | |
1743 | }\r | |
1744 | \r | |
1745 | if (BufferSize == 0) {\r | |
1746 | return EFI_SUCCESS;\r | |
1747 | }\r | |
1748 | \r | |
1749 | //\r | |
1750 | // ATAPI device media is removable, so it is a must\r | |
1751 | // to detect media first before read operation\r | |
1752 | //\r | |
1753 | MediaChange = FALSE;\r | |
1754 | Status = AtapiDetectMedia (IdeBlkIoDevice, &MediaChange);\r | |
1755 | if (EFI_ERROR (Status)) {\r | |
1756 | \r | |
1757 | if (IdeBlkIoDevice->Cache != NULL) {\r | |
1758 | gBS->FreePool (IdeBlkIoDevice->Cache);\r | |
1759 | IdeBlkIoDevice->Cache = NULL;\r | |
1760 | }\r | |
1761 | \r | |
1762 | return Status;\r | |
1763 | }\r | |
1764 | //\r | |
1765 | // Get the intrinsic block size\r | |
1766 | //\r | |
1767 | Media = IdeBlkIoDevice->BlkIo.Media;\r | |
1768 | BlockSize = Media->BlockSize;\r | |
1769 | \r | |
1770 | NumberOfBlocks = BufferSize / BlockSize;\r | |
1771 | \r | |
1772 | if (!(Media->MediaPresent)) {\r | |
1773 | \r | |
1774 | if (IdeBlkIoDevice->Cache != NULL) {\r | |
1775 | gBS->FreePool (IdeBlkIoDevice->Cache);\r | |
1776 | IdeBlkIoDevice->Cache = NULL;\r | |
1777 | }\r | |
1778 | return EFI_NO_MEDIA;\r | |
1779 | \r | |
1780 | }\r | |
1781 | \r | |
1782 | if ((MediaId != Media->MediaId) || MediaChange) {\r | |
1783 | \r | |
1784 | if (IdeBlkIoDevice->Cache != NULL) {\r | |
1785 | gBS->FreePool (IdeBlkIoDevice->Cache);\r | |
1786 | IdeBlkIoDevice->Cache = NULL;\r | |
1787 | }\r | |
1788 | return EFI_MEDIA_CHANGED;\r | |
1789 | }\r | |
1790 | \r | |
1791 | if (BufferSize % BlockSize != 0) {\r | |
1792 | return EFI_BAD_BUFFER_SIZE;\r | |
1793 | }\r | |
1794 | \r | |
1795 | if (LBA > Media->LastBlock) {\r | |
1796 | return EFI_INVALID_PARAMETER;\r | |
1797 | }\r | |
1798 | \r | |
1799 | if ((LBA + NumberOfBlocks - 1) > Media->LastBlock) {\r | |
1800 | return EFI_INVALID_PARAMETER;\r | |
1801 | }\r | |
1802 | \r | |
1803 | if ((Media->IoAlign > 1) && (((UINTN) Buffer & (Media->IoAlign - 1)) != 0)) {\r | |
1804 | return EFI_INVALID_PARAMETER;\r | |
1805 | }\r | |
1806 | \r | |
1807 | //\r | |
1808 | // if all the parameters are valid, then perform read sectors command\r | |
1809 | // to transfer data from device to host.\r | |
1810 | //\r | |
1811 | Status = AtapiReadSectors (IdeBlkIoDevice, Buffer, LBA, NumberOfBlocks);\r | |
1812 | if (EFI_ERROR (Status)) {\r | |
1813 | return EFI_DEVICE_ERROR;\r | |
1814 | }\r | |
1815 | \r | |
1816 | //\r | |
1817 | // Read blocks succeeded\r | |
1818 | //\r | |
1819 | \r | |
1820 | //\r | |
1821 | // save the first block to the cache for performance\r | |
1822 | //\r | |
1823 | if (LBA == 0 && !IdeBlkIoDevice->Cache) {\r | |
1824 | IdeBlkIoDevice->Cache = AllocatePool (BlockSize);\r | |
1825 | if (IdeBlkIoDevice != NULL) {\r | |
1826 | CopyMem ((UINT8 *) IdeBlkIoDevice->Cache, (UINT8 *) Buffer, BlockSize);\r | |
1827 | }\r | |
1828 | }\r | |
1829 | \r | |
1830 | return EFI_SUCCESS;\r | |
1831 | \r | |
1832 | }\r | |
1833 | \r | |
ed72955c | 1834 | /**\r |
1835 | This function is the ATAPI implementation for WriteBlocks in the\r | |
1836 | Block I/O Protocol interface.\r | |
1837 | \r | |
1838 | @param[in] *This\r | |
1839 | Indicates the calling context.\r | |
1840 | \r | |
1841 | @param[in] MediaId\r | |
1842 | The media id that the write request is for.\r | |
1843 | \r | |
1844 | @param[in] LBA\r | |
1845 | The starting logical block address to write onto \r | |
1846 | the device.\r | |
1847 | \r | |
1848 | @param[in] BufferSize\r | |
1849 | The size of the Buffer in bytes. This must be a\r | |
1850 | multiple of the intrinsic block size of the device.\r | |
1851 | \r | |
1852 | @param[out] *Buffer\r | |
1853 | A pointer to the source buffer for the data. \r | |
1854 | The caller is responsible for either having implicit\r | |
1855 | or explicit ownership of the memory that data is \r | |
1856 | written from.\r | |
1857 | \r | |
1858 | @retval EFI_SUCCESS\r | |
1859 | Write Blocks successfully.\r | |
1860 | \r | |
1861 | @retval EFI_DEVICE_ERROR\r | |
1862 | Write Blocks failed.\r | |
1863 | \r | |
1864 | @retval EFI_NO_MEDIA\r | |
1865 | There is no media in the device.\r | |
1866 | \r | |
1867 | @retval EFI_MEDIA_CHANGE\r | |
1868 | The MediaId is not for the current media.\r | |
1869 | \r | |
1870 | @retval EFI_BAD_BUFFER_SIZE\r | |
1871 | The BufferSize parameter is not a multiple of the\r | |
1872 | intrinsic block size of the device.\r | |
1873 | \r | |
1874 | @retval EFI_INVALID_PARAMETER\r | |
1875 | The write request contains LBAs that are not valid,\r | |
1876 | or the data buffer is not valid.\r | |
1877 | \r | |
1878 | TODO: EFI_MEDIA_CHANGED - add return value to function comment\r | |
1879 | TODO: EFI_WRITE_PROTECTED - add return value to function comment\r | |
1880 | **/\r | |
878ddf1f | 1881 | EFI_STATUS\r |
1882 | AtapiBlkIoWriteBlocks (\r | |
1883 | IN IDE_BLK_IO_DEV *IdeBlkIoDevice,\r | |
1884 | IN UINT32 MediaId,\r | |
1885 | IN EFI_LBA LBA,\r | |
1886 | IN UINTN BufferSize,\r | |
1887 | OUT VOID *Buffer\r | |
1888 | )\r | |
878ddf1f | 1889 | {\r |
1890 | \r | |
1891 | EFI_BLOCK_IO_MEDIA *Media;\r | |
1892 | UINTN BlockSize;\r | |
1893 | UINTN NumberOfBlocks;\r | |
1894 | EFI_STATUS Status;\r | |
1895 | BOOLEAN MediaChange;\r | |
1896 | \r | |
1897 | if (LBA == 0 && IdeBlkIoDevice->Cache) {\r | |
1898 | gBS->FreePool (IdeBlkIoDevice->Cache);\r | |
1899 | IdeBlkIoDevice->Cache = NULL;\r | |
1900 | }\r | |
1901 | \r | |
1902 | if (Buffer == NULL) {\r | |
1903 | return EFI_INVALID_PARAMETER;\r | |
1904 | }\r | |
1905 | \r | |
1906 | if (BufferSize == 0) {\r | |
1907 | return EFI_SUCCESS;\r | |
1908 | }\r | |
1909 | \r | |
1910 | //\r | |
1911 | // ATAPI device media is removable,\r | |
1912 | // so it is a must to detect media first before write operation\r | |
1913 | //\r | |
1914 | MediaChange = FALSE;\r | |
1915 | Status = AtapiDetectMedia (IdeBlkIoDevice, &MediaChange);\r | |
1916 | if (EFI_ERROR (Status)) {\r | |
1917 | \r | |
1918 | if (LBA == 0 && IdeBlkIoDevice->Cache) {\r | |
1919 | gBS->FreePool (IdeBlkIoDevice->Cache);\r | |
1920 | IdeBlkIoDevice->Cache = NULL;\r | |
1921 | }\r | |
1922 | return Status;\r | |
1923 | }\r | |
1924 | \r | |
1925 | //\r | |
1926 | // Get the intrinsic block size\r | |
1927 | //\r | |
1928 | Media = IdeBlkIoDevice->BlkIo.Media;\r | |
1929 | BlockSize = Media->BlockSize;\r | |
1930 | NumberOfBlocks = BufferSize / BlockSize;\r | |
1931 | \r | |
1932 | if (!(Media->MediaPresent)) {\r | |
1933 | \r | |
1934 | if (LBA == 0 && IdeBlkIoDevice->Cache) {\r | |
1935 | gBS->FreePool (IdeBlkIoDevice->Cache);\r | |
1936 | IdeBlkIoDevice->Cache = NULL;\r | |
1937 | }\r | |
1938 | return EFI_NO_MEDIA;\r | |
1939 | }\r | |
1940 | \r | |
1941 | if ((MediaId != Media->MediaId) || MediaChange) {\r | |
1942 | \r | |
1943 | if (LBA == 0 && IdeBlkIoDevice->Cache) {\r | |
1944 | gBS->FreePool (IdeBlkIoDevice->Cache);\r | |
1945 | IdeBlkIoDevice->Cache = NULL;\r | |
1946 | }\r | |
1947 | return EFI_MEDIA_CHANGED;\r | |
1948 | }\r | |
1949 | \r | |
1950 | if (Media->ReadOnly) {\r | |
1951 | return EFI_WRITE_PROTECTED;\r | |
1952 | }\r | |
1953 | \r | |
1954 | if (BufferSize % BlockSize != 0) {\r | |
1955 | return EFI_BAD_BUFFER_SIZE;\r | |
1956 | }\r | |
1957 | \r | |
1958 | if (LBA > Media->LastBlock) {\r | |
1959 | return EFI_INVALID_PARAMETER;\r | |
1960 | }\r | |
1961 | \r | |
1962 | if ((LBA + NumberOfBlocks - 1) > Media->LastBlock) {\r | |
1963 | return EFI_INVALID_PARAMETER;\r | |
1964 | }\r | |
1965 | \r | |
1966 | if ((Media->IoAlign > 1) && (((UINTN) Buffer & (Media->IoAlign - 1)) != 0)) {\r | |
1967 | return EFI_INVALID_PARAMETER;\r | |
1968 | }\r | |
1969 | \r | |
1970 | //\r | |
1971 | // if all the parameters are valid,\r | |
1972 | // then perform write sectors command to transfer data from host to device.\r | |
1973 | //\r | |
1974 | Status = AtapiWriteSectors (IdeBlkIoDevice, Buffer, LBA, NumberOfBlocks);\r | |
1975 | if (EFI_ERROR (Status)) {\r | |
1976 | return EFI_DEVICE_ERROR;\r | |
1977 | }\r | |
1978 | \r | |
1979 | return EFI_SUCCESS;\r | |
1980 | \r | |
1981 | }\r | |
1982 | \r | |
ed72955c | 1983 | /**\r |
a98f11c5 | 1984 | This function is used to parse sense data. Only the first\r |
1985 | sense data is honoured.\r | |
878ddf1f | 1986 | \r |
a98f11c5 | 1987 | @param[in] IdeDev Indicates the calling context.\r |
1988 | @param[in] SenseCount Count of sense data.\r | |
1989 | @param[out] Result The parsed result.\r | |
878ddf1f | 1990 | \r |
a98f11c5 | 1991 | @retval EFI_SUCCESS Successfully parsed.\r |
1992 | @retval EFI_INVALID_PARAMETER Count of sense data is zero.\r | |
878ddf1f | 1993 | \r |
ed72955c | 1994 | **/\r |
a98f11c5 | 1995 | EFI_STATUS\r |
1996 | ParseSenseData (\r | |
1997 | IN IDE_BLK_IO_DEV *IdeDev,\r | |
1998 | IN UINTN SenseCount,\r | |
1999 | OUT SENSE_RESULT *Result\r | |
ed72955c | 2000 | )\r |
878ddf1f | 2001 | {\r |
a98f11c5 | 2002 | REQUEST_SENSE_DATA *SenseData;\r |
878ddf1f | 2003 | \r |
a98f11c5 | 2004 | if (SenseCount == 0) {\r |
2005 | return EFI_INVALID_PARAMETER;\r | |
878ddf1f | 2006 | }\r |
2007 | \r | |
a98f11c5 | 2008 | //\r |
2009 | // Only use the first sense data\r | |
2010 | //\r | |
2011 | SenseData = IdeDev->SenseData;\r | |
2012 | *Result = SenseOtherSense;\r | |
878ddf1f | 2013 | \r |
a98f11c5 | 2014 | switch (SenseData->sense_key) {\r |
2015 | case SK_NO_SENSE:\r | |
2016 | *Result = SenseNoSenseKey;\r | |
2017 | break;\r | |
2018 | case SK_NOT_READY:\r | |
2019 | switch (SenseData->addnl_sense_code) {\r | |
2020 | case ASC_NO_MEDIA:\r | |
2021 | *Result = SenseNoMedia;\r | |
878ddf1f | 2022 | break;\r |
a98f11c5 | 2023 | case ASC_MEDIA_UPSIDE_DOWN:\r |
2024 | *Result = SenseMediaError;\r | |
878ddf1f | 2025 | break;\r |
a98f11c5 | 2026 | case ASC_NOT_READY:\r |
2027 | if (SenseData->addnl_sense_code_qualifier == ASCQ_IN_PROGRESS) {\r | |
2028 | *Result = SenseDeviceNotReadyNeedRetry;\r | |
2029 | } else {\r | |
2030 | *Result = SenseDeviceNotReadyNoRetry;\r | |
2031 | }\r | |
878ddf1f | 2032 | break;\r |
2033 | }\r | |
a98f11c5 | 2034 | break;\r |
2035 | case SK_UNIT_ATTENTION:\r | |
2036 | if (SenseData->addnl_sense_code == ASC_MEDIA_CHANGE) {\r | |
2037 | *Result = SenseMediaChange;\r | |
878ddf1f | 2038 | }\r |
a98f11c5 | 2039 | break;\r |
2040 | case SK_MEDIUM_ERROR:\r | |
2041 | switch (SenseData->addnl_sense_code) {\r | |
2042 | case ASC_MEDIA_ERR1:\r | |
2043 | case ASC_MEDIA_ERR2:\r | |
2044 | case ASC_MEDIA_ERR3:\r | |
2045 | case ASC_MEDIA_ERR4:\r | |
2046 | *Result = SenseMediaError;\r | |
878ddf1f | 2047 | break;\r |
2048 | }\r | |
a98f11c5 | 2049 | break;\r |
2050 | default:\r | |
2051 | break;\r | |
878ddf1f | 2052 | }\r |
2053 | \r | |
a98f11c5 | 2054 | return EFI_SUCCESS;\r |
878ddf1f | 2055 | }\r |
2056 | \r | |
ed72955c | 2057 | /**\r |
a98f11c5 | 2058 | This function reads the pending data in the device.\r |
878ddf1f | 2059 | \r |
a98f11c5 | 2060 | @param[in] IdeDev Indicates the calling context.\r |
878ddf1f | 2061 | \r |
a98f11c5 | 2062 | @retval EFI_SUCCESS Successfully read.\r |
2063 | @retval EFI_NOT_READY The BSY is set avoiding reading.\r | |
878ddf1f | 2064 | \r |
ed72955c | 2065 | **/\r |
a98f11c5 | 2066 | EFI_STATUS\r |
2067 | AtapiReadPendingData (\r | |
2068 | IN IDE_BLK_IO_DEV *IdeDev\r | |
ed72955c | 2069 | )\r |
878ddf1f | 2070 | {\r |
a98f11c5 | 2071 | UINT8 AltRegister;\r |
2072 | UINT16 TempWordBuffer;\r | |
878ddf1f | 2073 | \r |
a98f11c5 | 2074 | AltRegister = IDEReadPortB (IdeDev->PciIo, IdeDev->IoPort->Alt.AltStatus);\r |
2075 | if ((AltRegister & BSY) == BSY) {\r | |
2076 | return EFI_NOT_READY;\r | |
878ddf1f | 2077 | }\r |
a98f11c5 | 2078 | if ((AltRegister & (BSY | DRQ)) == DRQ) {\r |
2079 | TempWordBuffer = IDEReadPortB (IdeDev->PciIo,IdeDev->IoPort->Alt.AltStatus);\r | |
2080 | while ((TempWordBuffer & (BSY | DRQ)) == DRQ) {\r | |
2081 | IDEReadPortWMultiple (\r | |
2082 | IdeDev->PciIo,\r | |
2083 | IdeDev->IoPort->Data, \r | |
2084 | 1, \r | |
2085 | &TempWordBuffer\r | |
2086 | );\r | |
2087 | TempWordBuffer = IDEReadPortB (IdeDev->PciIo,IdeDev->IoPort->Alt.AltStatus);\r | |
2088 | }\r | |
2089 | }\r | |
2090 | return EFI_SUCCESS;\r | |
878ddf1f | 2091 | }\r |
2092 | \r | |
ed72955c | 2093 | /**\r |
2094 | TODO: Add function description\r | |
2095 | \r | |
2096 | @param IdeDev TODO: add argument description\r | |
2097 | @param WriteProtected TODO: add argument description\r | |
2098 | \r | |
2099 | @retval EFI_DEVICE_ERROR TODO: Add description for return value\r | |
2100 | @retval EFI_DEVICE_ERROR TODO: Add description for return value\r | |
2101 | @retval EFI_SUCCESS TODO: Add description for return value\r | |
2102 | \r | |
2103 | **/\r | |
878ddf1f | 2104 | EFI_STATUS\r |
2105 | IsLS120orZipWriteProtected (\r | |
2106 | IN IDE_BLK_IO_DEV *IdeDev,\r | |
2107 | OUT BOOLEAN *WriteProtected\r | |
2108 | )\r | |
878ddf1f | 2109 | {\r |
2110 | EFI_STATUS Status;\r | |
2111 | \r | |
2112 | *WriteProtected = FALSE;\r | |
2113 | \r | |
2114 | Status = LS120EnableMediaStatus (IdeDev, TRUE);\r | |
2115 | if (EFI_ERROR (Status)) {\r | |
2116 | return EFI_DEVICE_ERROR;\r | |
2117 | }\r | |
2118 | \r | |
2119 | //\r | |
2120 | // the Get Media Status Command is only valid\r | |
2121 | // if a Set Features/Enable Media Status Command has been priviously issued.\r | |
2122 | //\r | |
2123 | if (LS120GetMediaStatus (IdeDev) == EFI_WRITE_PROTECTED) {\r | |
2124 | \r | |
2125 | *WriteProtected = TRUE;\r | |
2126 | } else {\r | |
2127 | \r | |
2128 | *WriteProtected = FALSE;\r | |
2129 | }\r | |
2130 | \r | |
2131 | //\r | |
2132 | // After Get Media Status Command completes,\r | |
2133 | // Set Features/Disable Media Command should be sent.\r | |
2134 | //\r | |
2135 | Status = LS120EnableMediaStatus (IdeDev, FALSE);\r | |
2136 | if (EFI_ERROR (Status)) {\r | |
2137 | return EFI_DEVICE_ERROR;\r | |
2138 | }\r | |
2139 | \r | |
2140 | return EFI_SUCCESS;\r | |
2141 | }\r |