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ead42efc | 1 | /** @file\r |
2 | Copyright (c) 2006 - 2007, 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 "idebus.h"\r | |
14 | \r | |
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 | |
19 | \r | |
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 | |
36 | \r | |
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 | |
43 | STATIC\r | |
44 | EFI_STATUS\r | |
45 | LS120GetMediaStatus (\r | |
46 | IN IDE_BLK_IO_DEV *IdeDev\r | |
47 | )\r | |
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 | |
1e23bd8d | 94 | if (StatusValue & BIT1) {\r |
ead42efc | 95 | return EFI_NO_MEDIA;\r |
96 | }\r | |
97 | \r | |
1e23bd8d | 98 | if (StatusValue & BIT6) {\r |
ead42efc | 99 | return EFI_WRITE_PROTECTED;\r |
100 | } else {\r | |
101 | return EFI_SUCCESS;\r | |
102 | }\r | |
103 | }\r | |
104 | \r | |
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 | |
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 | |
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 | |
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 | |
226 | EFI_STATUS\r | |
227 | ATAPIIdentify (\r | |
228 | IN IDE_BLK_IO_DEV *IdeDev\r | |
229 | )\r | |
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 = (UINT8) ((IdeDev->Device) << 4);\r | |
239 | \r | |
240 | AtapiIdentifyPointer = AllocatePool (sizeof (EFI_IDENTIFY_DATA));\r | |
241 | if (AtapiIdentifyPointer == NULL) {\r | |
242 | return EFI_OUT_OF_RESOURCES;\r | |
243 | }\r | |
244 | //\r | |
245 | // Send ATAPI Identify Command to get IDENTIFY data.\r | |
246 | //\r | |
247 | Status = AtaPioDataIn (\r | |
248 | IdeDev,\r | |
249 | (VOID *) AtapiIdentifyPointer,\r | |
250 | sizeof (EFI_IDENTIFY_DATA),\r | |
1e23bd8d | 251 | ATA_CMD_IDENTIFY_DEVICE,\r |
ead42efc | 252 | DeviceSelect,\r |
253 | 0,\r | |
254 | 0,\r | |
255 | 0,\r | |
256 | 0\r | |
257 | );\r | |
258 | \r | |
259 | if (EFI_ERROR (Status)) {\r | |
260 | gBS->FreePool (AtapiIdentifyPointer);\r | |
261 | return EFI_DEVICE_ERROR;\r | |
262 | }\r | |
263 | \r | |
264 | IdeDev->pIdData = AtapiIdentifyPointer;\r | |
265 | PrintAtaModuleName (IdeDev);\r | |
266 | \r | |
267 | //\r | |
268 | // Send ATAPI Inquiry Packet Command to get INQUIRY data.\r | |
269 | //\r | |
270 | Status = AtapiInquiry (IdeDev);\r | |
271 | if (EFI_ERROR (Status)) {\r | |
272 | gBS->FreePool (IdeDev->pIdData);\r | |
273 | //\r | |
274 | // Make sure the pIdData will not be freed again.\r | |
275 | //\r | |
276 | IdeDev->pIdData = NULL;\r | |
277 | return EFI_DEVICE_ERROR;\r | |
278 | }\r | |
279 | //\r | |
280 | // Get media removable info from INQUIRY data.\r | |
281 | //\r | |
282 | IdeDev->BlkIo.Media->RemovableMedia = (UINT8) ((IdeDev->pInquiryData->RMB & 0x80) == 0x80);\r | |
283 | \r | |
284 | //\r | |
285 | // Identify device type via INQUIRY data.\r | |
286 | //\r | |
287 | switch (IdeDev->pInquiryData->peripheral_type & 0x1f) {\r | |
288 | \r | |
289 | //\r | |
290 | // Magnetic Disk\r | |
291 | //\r | |
292 | case 0x00:\r | |
293 | \r | |
294 | //\r | |
295 | // device is LS120 or ZIP drive.\r | |
296 | //\r | |
297 | IdeDev->Type = IdeMagnetic;\r | |
298 | \r | |
299 | IdeDev->BlkIo.Media->MediaId = 0;\r | |
300 | //\r | |
301 | // Give initial value\r | |
302 | //\r | |
303 | IdeDev->BlkIo.Media->MediaPresent = FALSE;\r | |
304 | \r | |
305 | IdeDev->BlkIo.Media->LastBlock = 0;\r | |
306 | IdeDev->BlkIo.Media->BlockSize = 0x200;\r | |
307 | break;\r | |
308 | \r | |
309 | //\r | |
310 | // CD-ROM\r | |
311 | //\r | |
312 | case 0x05:\r | |
313 | \r | |
314 | IdeDev->Type = IdeCdRom;\r | |
315 | IdeDev->BlkIo.Media->MediaId = 0;\r | |
316 | //\r | |
317 | // Give initial value\r | |
318 | //\r | |
319 | IdeDev->BlkIo.Media->MediaPresent = FALSE;\r | |
320 | \r | |
321 | IdeDev->BlkIo.Media->LastBlock = 0;\r | |
322 | IdeDev->BlkIo.Media->BlockSize = 0x800;\r | |
323 | IdeDev->BlkIo.Media->ReadOnly = TRUE;\r | |
324 | break;\r | |
325 | \r | |
326 | //\r | |
327 | // Tape\r | |
328 | //\r | |
329 | case 0x01:\r | |
330 | \r | |
331 | //\r | |
332 | // WORM\r | |
333 | //\r | |
334 | case 0x04:\r | |
335 | \r | |
336 | //\r | |
337 | // Optical\r | |
338 | //\r | |
339 | case 0x07:\r | |
340 | \r | |
341 | default:\r | |
342 | IdeDev->Type = IdeUnknown;\r | |
343 | gBS->FreePool (IdeDev->pIdData);\r | |
344 | gBS->FreePool (IdeDev->pInquiryData);\r | |
345 | //\r | |
346 | // Make sure the pIdData and pInquiryData will not be freed again.\r | |
347 | //\r | |
348 | IdeDev->pIdData = NULL;\r | |
349 | IdeDev->pInquiryData = NULL;\r | |
350 | return EFI_DEVICE_ERROR;\r | |
351 | }\r | |
352 | \r | |
353 | //\r | |
354 | // original sense data numbers\r | |
355 | //\r | |
356 | IdeDev->SenseDataNumber = 20;\r | |
357 | \r | |
1e23bd8d | 358 | IdeDev->SenseData = AllocatePool (IdeDev->SenseDataNumber * sizeof (ATAPI_REQUEST_SENSE_DATA));\r |
ead42efc | 359 | if (IdeDev->SenseData == NULL) {\r |
360 | gBS->FreePool (IdeDev->pIdData);\r | |
361 | gBS->FreePool (IdeDev->pInquiryData);\r | |
362 | //\r | |
363 | // Make sure the pIdData and pInquiryData will not be freed again.\r | |
364 | //\r | |
365 | IdeDev->pIdData = NULL;\r | |
366 | IdeDev->pInquiryData = NULL;\r | |
367 | return EFI_OUT_OF_RESOURCES;\r | |
368 | }\r | |
369 | \r | |
370 | return EFI_SUCCESS;\r | |
371 | }\r | |
372 | \r | |
373 | /**\r | |
374 | Sends out ATAPI Inquiry Packet Command to the specified device.\r | |
375 | This command will return INQUIRY data of the device.\r | |
376 | \r | |
377 | @param[in] *IdeDev\r | |
378 | pointer pointing to IDE_BLK_IO_DEV data structure, used\r | |
379 | to record all the information of the IDE device.\r | |
380 | \r | |
381 | @retval EFI_SUCCESS\r | |
382 | Inquiry command completes successfully.\r | |
383 | \r | |
384 | @retval EFI_DEVICE_ERROR\r | |
385 | Inquiry command failed.\r | |
386 | \r | |
387 | @note\r | |
388 | Parameter "IdeDev" will be updated in this function.\r | |
389 | \r | |
390 | **/\r | |
391 | EFI_STATUS\r | |
392 | AtapiInquiry (\r | |
393 | IN IDE_BLK_IO_DEV *IdeDev\r | |
394 | )\r | |
395 | {\r | |
396 | ATAPI_PACKET_COMMAND Packet;\r | |
397 | EFI_STATUS Status;\r | |
1e23bd8d | 398 | ATAPI_INQUIRY_DATA *InquiryData;\r |
ead42efc | 399 | \r |
400 | //\r | |
401 | // prepare command packet for the ATAPI Inquiry Packet Command.\r | |
402 | //\r | |
403 | ZeroMem (&Packet, sizeof (ATAPI_PACKET_COMMAND));\r | |
1e23bd8d | 404 | Packet.Inquiry.opcode = ATA_CMD_INQUIRY;\r |
ead42efc | 405 | Packet.Inquiry.page_code = 0;\r |
1e23bd8d | 406 | Packet.Inquiry.allocation_length = sizeof (ATAPI_INQUIRY_DATA);\r |
ead42efc | 407 | \r |
1e23bd8d | 408 | InquiryData = AllocatePool (sizeof (ATAPI_INQUIRY_DATA));\r |
ead42efc | 409 | if (InquiryData == NULL) {\r |
410 | return EFI_DEVICE_ERROR;\r | |
411 | }\r | |
412 | \r | |
413 | //\r | |
414 | // Send command packet and get requested Inquiry data.\r | |
415 | //\r | |
416 | Status = AtapiPacketCommandIn (\r | |
417 | IdeDev,\r | |
418 | &Packet,\r | |
419 | (UINT16 *) InquiryData,\r | |
1e23bd8d | 420 | sizeof (ATAPI_INQUIRY_DATA),\r |
ead42efc | 421 | ATAPITIMEOUT\r |
422 | );\r | |
423 | if (EFI_ERROR (Status)) {\r | |
424 | gBS->FreePool (InquiryData);\r | |
425 | return EFI_DEVICE_ERROR;\r | |
426 | }\r | |
427 | \r | |
428 | IdeDev->pInquiryData = InquiryData;\r | |
429 | \r | |
430 | return EFI_SUCCESS;\r | |
431 | }\r | |
432 | \r | |
433 | /**\r | |
434 | This function is used to send out ATAPI commands conforms to the \r | |
435 | Packet Command with PIO Data In Protocol.\r | |
436 | \r | |
437 | @param[in] *IdeDev\r | |
438 | pointer pointing to IDE_BLK_IO_DEV data structure, used\r | |
439 | to record all the information of the IDE device.\r | |
440 | \r | |
441 | @param[in] *Packet\r | |
442 | pointer pointing to ATAPI_PACKET_COMMAND data structure\r | |
443 | which contains the contents of the command. \r | |
444 | \r | |
445 | @param[in] *Buffer\r | |
446 | buffer contained data transferred from device to host.\r | |
447 | \r | |
448 | @param[in] ByteCount\r | |
449 | data size in byte unit of the buffer.\r | |
450 | \r | |
451 | @param[in] TimeOut\r | |
452 | this parameter is used to specify the timeout \r | |
453 | value for the PioReadWriteData() function. \r | |
454 | \r | |
455 | @retval EFI_SUCCESS\r | |
456 | send out the ATAPI packet command successfully\r | |
457 | and device sends data successfully.\r | |
458 | \r | |
459 | @retval EFI_DEVICE_ERROR\r | |
460 | the device failed to send data.\r | |
461 | \r | |
462 | **/\r | |
463 | EFI_STATUS\r | |
464 | AtapiPacketCommandIn (\r | |
465 | IN IDE_BLK_IO_DEV *IdeDev,\r | |
466 | IN ATAPI_PACKET_COMMAND *Packet,\r | |
467 | IN UINT16 *Buffer,\r | |
468 | IN UINT32 ByteCount,\r | |
469 | IN UINTN TimeOut\r | |
470 | )\r | |
471 | {\r | |
472 | UINT16 *CommandIndex;\r | |
473 | EFI_STATUS Status;\r | |
474 | UINT32 Count;\r | |
475 | \r | |
476 | //\r | |
477 | // Set all the command parameters by fill related registers.\r | |
478 | // Before write to all the following registers, BSY and DRQ must be 0.\r | |
479 | //\r | |
480 | Status = DRQClear2 (IdeDev, ATAPITIMEOUT);\r | |
481 | if (EFI_ERROR (Status)) {\r | |
482 | return Status;\r | |
483 | }\r | |
484 | \r | |
485 | //\r | |
486 | // Select device via Device/Head Register.\r | |
487 | //\r | |
488 | IDEWritePortB (\r | |
489 | IdeDev->PciIo,\r | |
490 | IdeDev->IoPort->Head,\r | |
1e23bd8d | 491 | (UINT8) ((IdeDev->Device << 4) | ATA_DEFAULT_CMD) // DEFAULT_CMD: 0xa0 (1010,0000)\r |
ead42efc | 492 | );\r |
493 | \r | |
494 | //\r | |
495 | // No OVL; No DMA\r | |
496 | //\r | |
497 | IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->Reg1.Feature, 0x00);\r | |
498 | \r | |
499 | //\r | |
1e23bd8d | 500 | // set the transfersize to ATAPI_MAX_BYTE_COUNT to let the device\r |
ead42efc | 501 | // determine how many data should be transferred.\r |
502 | //\r | |
503 | IDEWritePortB (\r | |
504 | IdeDev->PciIo,\r | |
505 | IdeDev->IoPort->CylinderLsb,\r | |
1e23bd8d | 506 | (UINT8) (ATAPI_MAX_BYTE_COUNT & 0x00ff)\r |
ead42efc | 507 | );\r |
508 | IDEWritePortB (\r | |
509 | IdeDev->PciIo,\r | |
510 | IdeDev->IoPort->CylinderMsb,\r | |
1e23bd8d | 511 | (UINT8) (ATAPI_MAX_BYTE_COUNT >> 8)\r |
ead42efc | 512 | );\r |
513 | \r | |
514 | //\r | |
1e23bd8d | 515 | // ATA_DEFAULT_CTL:0x0a (0000,1010)\r |
ead42efc | 516 | // Disable interrupt\r |
517 | //\r | |
1e23bd8d | 518 | IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->Alt.DeviceControl, ATA_DEFAULT_CTL);\r |
ead42efc | 519 | \r |
520 | //\r | |
521 | // Send Packet command to inform device\r | |
522 | // that the following data bytes are command packet.\r | |
523 | //\r | |
1e23bd8d | 524 | IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->Reg.Command, ATA_CMD_PACKET);\r |
ead42efc | 525 | \r |
526 | Status = DRQReady (IdeDev, ATAPITIMEOUT);\r | |
527 | if (EFI_ERROR (Status)) {\r | |
528 | return Status;\r | |
529 | }\r | |
530 | \r | |
531 | //\r | |
532 | // Send out command packet\r | |
533 | //\r | |
534 | CommandIndex = Packet->Data16;\r | |
535 | for (Count = 0; Count < 6; Count++, CommandIndex++) {\r | |
536 | \r | |
537 | IDEWritePortW (IdeDev->PciIo, IdeDev->IoPort->Data, *CommandIndex);\r | |
538 | gBS->Stall (10);\r | |
539 | }\r | |
540 | \r | |
541 | //\r | |
542 | // call PioReadWriteData() function to get\r | |
543 | // requested transfer data form device.\r | |
544 | //\r | |
545 | return PioReadWriteData (IdeDev, Buffer, ByteCount, 1, TimeOut);\r | |
546 | }\r | |
547 | \r | |
548 | /**\r | |
549 | This function is used to send out ATAPI commands conforms to the \r | |
550 | Packet Command with PIO Data Out Protocol.\r | |
551 | \r | |
552 | @param[in] *IdeDev\r | |
553 | pointer pointing to IDE_BLK_IO_DEV data structure, used\r | |
554 | to record all the information of the IDE device.\r | |
555 | \r | |
556 | @param[in] *Packet\r | |
557 | pointer pointing to ATAPI_PACKET_COMMAND data structure\r | |
558 | which contains the contents of the command.\r | |
559 | \r | |
560 | @param[in] *Buffer\r | |
561 | buffer contained data transferred from host to device.\r | |
562 | \r | |
563 | @param[in] ByteCount\r | |
564 | data size in byte unit of the buffer.\r | |
565 | \r | |
566 | @param[in] TimeOut\r | |
567 | this parameter is used to specify the timeout \r | |
568 | value for the PioReadWriteData() function. \r | |
569 | \r | |
570 | @retval EFI_SUCCESS\r | |
571 | send out the ATAPI packet command successfully\r | |
572 | and device received data successfully.\r | |
573 | \r | |
574 | @retval EFI_DEVICE_ERROR\r | |
575 | the device failed to send data.\r | |
576 | \r | |
577 | **/\r | |
578 | EFI_STATUS\r | |
579 | AtapiPacketCommandOut (\r | |
580 | IN IDE_BLK_IO_DEV *IdeDev,\r | |
581 | IN ATAPI_PACKET_COMMAND *Packet,\r | |
582 | IN UINT16 *Buffer,\r | |
583 | IN UINT32 ByteCount,\r | |
584 | IN UINTN TimeOut\r | |
585 | )\r | |
586 | {\r | |
587 | UINT16 *CommandIndex;\r | |
588 | EFI_STATUS Status;\r | |
589 | UINT32 Count;\r | |
590 | \r | |
591 | //\r | |
592 | // set all the command parameters\r | |
593 | // Before write to all the following registers, BSY and DRQ must be 0.\r | |
594 | //\r | |
595 | Status = DRQClear2 (IdeDev, ATAPITIMEOUT);\r | |
596 | if (EFI_ERROR (Status)) {\r | |
597 | return Status;\r | |
598 | }\r | |
599 | \r | |
600 | //\r | |
601 | // Select device via Device/Head Register.\r | |
602 | //\r | |
603 | IDEWritePortB (\r | |
604 | IdeDev->PciIo,\r | |
605 | IdeDev->IoPort->Head,\r | |
1e23bd8d | 606 | (UINT8) ((IdeDev->Device << 4) | ATA_DEFAULT_CMD) // ATA_DEFAULT_CMD: 0xa0 (1010,0000)\r |
ead42efc | 607 | );\r |
608 | \r | |
609 | //\r | |
610 | // No OVL; No DMA\r | |
611 | //\r | |
612 | IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->Reg1.Feature, 0x00);\r | |
613 | \r | |
614 | //\r | |
1e23bd8d | 615 | // set the transfersize to ATAPI_MAX_BYTE_COUNT to\r |
ead42efc | 616 | // let the device determine how many data should be transferred.\r |
617 | //\r | |
618 | IDEWritePortB (\r | |
619 | IdeDev->PciIo,\r | |
620 | IdeDev->IoPort->CylinderLsb,\r | |
1e23bd8d | 621 | (UINT8) (ATAPI_MAX_BYTE_COUNT & 0x00ff)\r |
ead42efc | 622 | );\r |
623 | IDEWritePortB (\r | |
624 | IdeDev->PciIo,\r | |
625 | IdeDev->IoPort->CylinderMsb,\r | |
1e23bd8d | 626 | (UINT8) (ATAPI_MAX_BYTE_COUNT >> 8)\r |
ead42efc | 627 | );\r |
628 | \r | |
629 | //\r | |
630 | // DEFAULT_CTL:0x0a (0000,1010)\r | |
631 | // Disable interrupt\r | |
632 | //\r | |
1e23bd8d | 633 | IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->Alt.DeviceControl, ATA_DEFAULT_CTL);\r |
ead42efc | 634 | \r |
635 | //\r | |
636 | // Send Packet command to inform device\r | |
637 | // that the following data bytes are command packet.\r | |
638 | //\r | |
1e23bd8d | 639 | IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->Reg.Command, ATA_CMD_PACKET);\r |
ead42efc | 640 | \r |
641 | Status = DRQReady2 (IdeDev, ATAPITIMEOUT);\r | |
642 | if (EFI_ERROR (Status)) {\r | |
643 | return Status;\r | |
644 | }\r | |
645 | \r | |
646 | //\r | |
647 | // Send out command packet\r | |
648 | //\r | |
649 | CommandIndex = Packet->Data16;\r | |
650 | for (Count = 0; Count < 6; Count++, CommandIndex++) {\r | |
651 | IDEWritePortW (IdeDev->PciIo, IdeDev->IoPort->Data, *CommandIndex);\r | |
652 | gBS->Stall (10);\r | |
653 | }\r | |
654 | \r | |
655 | //\r | |
656 | // call PioReadWriteData() function to send requested transfer data to device.\r | |
657 | //\r | |
658 | return PioReadWriteData (IdeDev, Buffer, ByteCount, 0, TimeOut);\r | |
659 | }\r | |
660 | \r | |
661 | /**\r | |
662 | This function is called by either AtapiPacketCommandIn() or \r | |
663 | AtapiPacketCommandOut(). It is used to transfer data between\r | |
664 | host and device. The data direction is specified by the fourth\r | |
665 | parameter.\r | |
666 | \r | |
667 | @param[in] *IdeDev\r | |
668 | pointer pointing to IDE_BLK_IO_DEV data structure, used\r | |
669 | to record all the information of the IDE device.\r | |
670 | \r | |
671 | @param[in] *Buffer\r | |
672 | buffer contained data transferred between host and device.\r | |
673 | \r | |
674 | @param[in] ByteCount\r | |
675 | data size in byte unit of the buffer.\r | |
676 | \r | |
677 | @param[in] Read\r | |
678 | flag used to determine the data transfer direction.\r | |
679 | Read equals 1, means data transferred from device to host;\r | |
680 | Read equals 0, means data transferred from host to device.\r | |
681 | \r | |
682 | @param[in] TimeOut\r | |
683 | timeout value for wait DRQ ready before each data \r | |
684 | stream's transfer.\r | |
685 | \r | |
686 | @retval EFI_SUCCESS\r | |
687 | data is transferred successfully.\r | |
688 | \r | |
689 | @retval EFI_DEVICE_ERROR\r | |
690 | the device failed to transfer data.\r | |
691 | \r | |
692 | **/\r | |
693 | EFI_STATUS\r | |
694 | PioReadWriteData (\r | |
695 | IN IDE_BLK_IO_DEV *IdeDev,\r | |
696 | IN UINT16 *Buffer,\r | |
697 | IN UINT32 ByteCount,\r | |
698 | IN BOOLEAN Read,\r | |
699 | IN UINTN TimeOut\r | |
700 | )\r | |
701 | {\r | |
702 | //\r | |
703 | // required transfer data in word unit.\r | |
704 | //\r | |
705 | UINT32 RequiredWordCount;\r | |
706 | \r | |
707 | //\r | |
708 | // actual transfer data in word unit.\r | |
709 | //\r | |
710 | UINT32 ActualWordCount;\r | |
711 | UINT32 WordCount;\r | |
712 | EFI_STATUS Status;\r | |
713 | UINT16 *PtrBuffer;\r | |
714 | \r | |
715 | //\r | |
716 | // No data transfer is premitted.\r | |
717 | //\r | |
718 | if (ByteCount == 0) {\r | |
719 | return EFI_SUCCESS;\r | |
720 | }\r | |
721 | //\r | |
722 | // for performance, we assert the ByteCount is an even number\r | |
723 | // which is actually a resonable assumption \r | |
724 | ASSERT((ByteCount%2) == 0);\r | |
725 | \r | |
726 | PtrBuffer = Buffer;\r | |
727 | RequiredWordCount = ByteCount / 2;\r | |
728 | //\r | |
729 | // ActuralWordCount means the word count of data really transferred.\r | |
730 | //\r | |
731 | ActualWordCount = 0;\r | |
732 | \r | |
733 | while (ActualWordCount < RequiredWordCount) {\r | |
734 | \r | |
735 | //\r | |
736 | // before each data transfer stream, the host should poll DRQ bit ready,\r | |
737 | // to see whether indicates device is ready to transfer data.\r | |
738 | //\r | |
739 | Status = DRQReady2 (IdeDev, TimeOut);\r | |
740 | if (EFI_ERROR (Status)) {\r | |
741 | return CheckErrorStatus (IdeDev);\r | |
742 | }\r | |
743 | \r | |
744 | //\r | |
745 | // read Status Register will clear interrupt\r | |
746 | //\r | |
747 | IDEReadPortB (IdeDev->PciIo, IdeDev->IoPort->Reg.Status);\r | |
748 | \r | |
749 | //\r | |
750 | // get current data transfer size from Cylinder Registers.\r | |
751 | //\r | |
752 | WordCount = IDEReadPortB (IdeDev->PciIo, IdeDev->IoPort->CylinderMsb) << 8;\r | |
753 | WordCount = WordCount | IDEReadPortB (IdeDev->PciIo, IdeDev->IoPort->CylinderLsb);\r | |
754 | WordCount = WordCount & 0xffff;\r | |
755 | WordCount /= 2;\r | |
756 | \r | |
757 | WordCount = EFI_MIN (WordCount, (RequiredWordCount - ActualWordCount));\r | |
758 | \r | |
759 | if (Read) {\r | |
760 | IDEReadPortWMultiple (\r | |
761 | IdeDev->PciIo,\r | |
762 | IdeDev->IoPort->Data,\r | |
763 | WordCount,\r | |
764 | PtrBuffer\r | |
765 | );\r | |
766 | } else {\r | |
767 | IDEWritePortWMultiple (\r | |
768 | IdeDev->PciIo,\r | |
769 | IdeDev->IoPort->Data,\r | |
770 | WordCount,\r | |
771 | PtrBuffer\r | |
772 | );\r | |
773 | }\r | |
774 | \r | |
775 | PtrBuffer += WordCount;\r | |
776 | ActualWordCount += WordCount;\r | |
777 | }\r | |
778 | \r | |
779 | if (Read) {\r | |
780 | //\r | |
781 | // In the case where the drive wants to send more data than we need to read,\r | |
782 | // the DRQ bit will be set and cause delays from DRQClear2().\r | |
783 | // We need to read data from the drive until it clears DRQ so we can move on.\r | |
784 | //\r | |
785 | AtapiReadPendingData (IdeDev);\r | |
786 | }\r | |
787 | \r | |
788 | //\r | |
789 | // After data transfer is completed, normally, DRQ bit should clear.\r | |
790 | //\r | |
791 | Status = DRQClear2 (IdeDev, ATAPITIMEOUT);\r | |
792 | if (EFI_ERROR (Status)) {\r | |
793 | return EFI_DEVICE_ERROR;\r | |
794 | }\r | |
795 | \r | |
796 | //\r | |
797 | // read status register to check whether error happens.\r | |
798 | //\r | |
799 | return CheckErrorStatus (IdeDev);\r | |
800 | }\r | |
801 | \r | |
802 | /**\r | |
803 | Sends out ATAPI Test Unit Ready Packet Command to the specified device\r | |
804 | to find out whether device is accessible.\r | |
805 | \r | |
806 | @param[in] *IdeDev Pointer pointing to IDE_BLK_IO_DEV data structure, used\r | |
807 | to record all the information of the IDE device.\r | |
808 | @param[in] *SenseCount Sense count for this packet command\r | |
809 | \r | |
810 | @retval EFI_SUCCESS Device is accessible.\r | |
811 | @retval EFI_DEVICE_ERROR Device is not accessible.\r | |
812 | \r | |
813 | **/\r | |
814 | EFI_STATUS\r | |
815 | AtapiTestUnitReady (\r | |
816 | IN IDE_BLK_IO_DEV *IdeDev,\r | |
817 | OUT UINTN *SenseCount\r | |
818 | )\r | |
819 | {\r | |
820 | ATAPI_PACKET_COMMAND Packet;\r | |
821 | EFI_STATUS Status;\r | |
822 | \r | |
823 | *SenseCount = 0;\r | |
824 | \r | |
825 | //\r | |
826 | // fill command packet\r | |
827 | //\r | |
828 | ZeroMem (&Packet, sizeof (ATAPI_PACKET_COMMAND));\r | |
1e23bd8d | 829 | Packet.TestUnitReady.opcode = ATA_CMD_TEST_UNIT_READY;\r |
ead42efc | 830 | \r |
831 | //\r | |
832 | // send command packet\r | |
833 | //\r | |
834 | Status = AtapiPacketCommandIn (IdeDev, &Packet, NULL, 0, ATAPITIMEOUT);\r | |
835 | if (EFI_ERROR (Status)) {\r | |
836 | return Status;\r | |
837 | }\r | |
838 | \r | |
839 | Status = AtapiRequestSense (IdeDev, SenseCount);\r | |
840 | if (EFI_ERROR (Status)) {\r | |
841 | *SenseCount = 0;\r | |
842 | return Status;\r | |
843 | }\r | |
844 | \r | |
845 | return EFI_SUCCESS;\r | |
846 | }\r | |
847 | \r | |
848 | /**\r | |
849 | Sends out ATAPI Request Sense Packet Command to the specified device.\r | |
850 | This command will return all the current Sense data in the device. \r | |
851 | This function will pack all the Sense data in one single buffer.\r | |
852 | \r | |
853 | @param[in] *IdeDev\r | |
854 | pointer pointing to IDE_BLK_IO_DEV data structure, used\r | |
855 | to record all the information of the IDE device.\r | |
856 | \r | |
857 | @param[out] **SenseBuffers\r | |
858 | allocated in this function, and freed by the calling function.\r | |
859 | This buffer is used to accommodate all the sense data returned \r | |
860 | by the device.\r | |
861 | \r | |
862 | @param[out] *BufUnit\r | |
863 | record the unit size of the sense data block in the SenseBuffers,\r | |
864 | \r | |
865 | @param[out] *BufNumbers\r | |
866 | record the number of units in the SenseBuffers.\r | |
867 | \r | |
868 | @retval EFI_SUCCESS\r | |
869 | Request Sense command completes successfully.\r | |
870 | \r | |
871 | @retval EFI_DEVICE_ERROR\r | |
872 | Request Sense command failed.\r | |
873 | \r | |
874 | **/\r | |
875 | EFI_STATUS\r | |
876 | AtapiRequestSense (\r | |
877 | IN IDE_BLK_IO_DEV *IdeDev,\r | |
878 | OUT UINTN *SenseCounts\r | |
879 | )\r | |
880 | {\r | |
881 | EFI_STATUS Status;\r | |
1e23bd8d | 882 | ATAPI_REQUEST_SENSE_DATA *Sense;\r |
ead42efc | 883 | UINT16 *Ptr;\r |
884 | BOOLEAN FetchSenseData;\r | |
885 | ATAPI_PACKET_COMMAND Packet;\r | |
886 | \r | |
887 | *SenseCounts = 0;\r | |
888 | \r | |
1e23bd8d | 889 | ZeroMem (IdeDev->SenseData, sizeof (ATAPI_REQUEST_SENSE_DATA) * (IdeDev->SenseDataNumber));\r |
ead42efc | 890 | //\r |
891 | // fill command packet for Request Sense Packet Command\r | |
892 | //\r | |
893 | ZeroMem (&Packet, sizeof (ATAPI_PACKET_COMMAND));\r | |
1e23bd8d | 894 | Packet.RequestSence.opcode = ATA_CMD_REQUEST_SENSE;\r |
895 | Packet.RequestSence.allocation_length = sizeof (ATAPI_REQUEST_SENSE_DATA);\r | |
ead42efc | 896 | \r |
897 | //\r | |
898 | // initialize pointer\r | |
899 | //\r | |
900 | Ptr = (UINT16 *) IdeDev->SenseData;\r | |
901 | //\r | |
902 | // request sense data from device continuously until no sense data\r | |
903 | // exists in the device.\r | |
904 | //\r | |
905 | for (FetchSenseData = TRUE; FetchSenseData;) {\r | |
906 | \r | |
1e23bd8d | 907 | Sense = (ATAPI_REQUEST_SENSE_DATA *) Ptr;\r |
ead42efc | 908 | \r |
909 | //\r | |
910 | // send out Request Sense Packet Command and get one Sense data form device\r | |
911 | //\r | |
912 | Status = AtapiPacketCommandIn (\r | |
913 | IdeDev,\r | |
914 | &Packet,\r | |
915 | Ptr,\r | |
1e23bd8d | 916 | sizeof (ATAPI_REQUEST_SENSE_DATA),\r |
ead42efc | 917 | ATAPITIMEOUT\r |
918 | );\r | |
919 | //\r | |
920 | // failed to get Sense data\r | |
921 | //\r | |
922 | if (EFI_ERROR (Status)) {\r | |
923 | if (*SenseCounts == 0) {\r | |
924 | return EFI_DEVICE_ERROR;\r | |
925 | } else {\r | |
926 | return EFI_SUCCESS;\r | |
927 | }\r | |
928 | }\r | |
929 | \r | |
930 | (*SenseCounts)++;\r | |
931 | //\r | |
932 | // We limit MAX sense data count to 20 in order to avoid dead loop. Some\r | |
933 | // incompatible ATAPI devices don't retrive NO_SENSE when there is no media.\r | |
934 | // In this case, dead loop occurs if we don't have a gatekeeper. 20 is\r | |
935 | // supposed to be large enough for any ATAPI device.\r | |
936 | //\r | |
1e23bd8d | 937 | if ((Sense->sense_key != ATA_SK_NO_SENSE) && ((*SenseCounts) < 20)) {\r |
ead42efc | 938 | //\r |
939 | // Ptr is word-based pointer\r | |
940 | //\r | |
1e23bd8d | 941 | Ptr += (sizeof (ATAPI_REQUEST_SENSE_DATA) + 1) >> 1;\r |
ead42efc | 942 | \r |
943 | } else {\r | |
944 | //\r | |
945 | // when no sense key, skip out the loop\r | |
946 | //\r | |
947 | FetchSenseData = FALSE;\r | |
948 | }\r | |
949 | }\r | |
950 | \r | |
951 | return EFI_SUCCESS;\r | |
952 | }\r | |
953 | \r | |
954 | /**\r | |
955 | Sends out ATAPI Read Capacity Packet Command to the specified device.\r | |
956 | This command will return the information regarding the capacity of the\r | |
957 | media in the device.\r | |
958 | \r | |
959 | Current device status will impact device's response to the Read Capacity\r | |
960 | Command. For example, if the device once reset, the Read Capacity\r | |
961 | Command will fail. The Sense data record the current device status, so \r | |
962 | if the Read Capacity Command failed, the Sense data must be requested\r | |
963 | and be analyzed to determine if the Read Capacity Command should retry.\r | |
964 | \r | |
965 | @param[in] *IdeDev Pointer pointing to IDE_BLK_IO_DEV data structure, used\r | |
966 | to record all the information of the IDE device.\r | |
967 | @param[in] SenseCount Sense count for this packet command\r | |
968 | \r | |
969 | @retval EFI_SUCCESS Read Capacity Command finally completes successfully.\r | |
970 | @retval EFI_DEVICE_ERROR Read Capacity Command failed because of device error.\r | |
971 | \r | |
972 | @note Parameter "IdeDev" will be updated in this function.\r | |
973 | \r | |
974 | TODO: EFI_NOT_READY - add return value to function comment\r | |
975 | **/\r | |
976 | EFI_STATUS\r | |
977 | AtapiReadCapacity (\r | |
978 | IN IDE_BLK_IO_DEV *IdeDev,\r | |
979 | OUT UINTN *SenseCount\r | |
980 | )\r | |
981 | {\r | |
982 | //\r | |
983 | // status returned by Read Capacity Packet Command\r | |
984 | //\r | |
985 | EFI_STATUS Status;\r | |
986 | EFI_STATUS SenseStatus;\r | |
987 | ATAPI_PACKET_COMMAND Packet;\r | |
988 | \r | |
989 | //\r | |
990 | // used for capacity data returned from ATAPI device\r | |
991 | //\r | |
1e23bd8d | 992 | ATAPI_READ_CAPACITY_DATA Data;\r |
993 | ATAPI_READ_FORMAT_CAPACITY_DATA FormatData;\r | |
ead42efc | 994 | \r |
995 | *SenseCount = 0;\r | |
996 | \r | |
997 | ZeroMem (&Data, sizeof (Data));\r | |
998 | ZeroMem (&FormatData, sizeof (FormatData));\r | |
999 | \r | |
1000 | if (IdeDev->Type == IdeCdRom) {\r | |
1001 | \r | |
1002 | ZeroMem (&Packet, sizeof (ATAPI_PACKET_COMMAND));\r | |
1e23bd8d | 1003 | Packet.Inquiry.opcode = ATA_CMD_READ_CAPACITY;\r |
ead42efc | 1004 | Status = AtapiPacketCommandIn (\r |
1005 | IdeDev,\r | |
1006 | &Packet,\r | |
1007 | (UINT16 *) &Data,\r | |
1e23bd8d | 1008 | sizeof (ATAPI_READ_CAPACITY_DATA),\r |
ead42efc | 1009 | ATAPITIMEOUT\r |
1010 | );\r | |
1011 | \r | |
1012 | } else {\r | |
1013 | //\r | |
1014 | // Type == IdeMagnetic\r | |
1015 | //\r | |
1016 | ZeroMem (&Packet, sizeof (ATAPI_PACKET_COMMAND));\r | |
1e23bd8d | 1017 | Packet.ReadFormatCapacity.opcode = ATA_CMD_READ_FORMAT_CAPACITY;\r |
ead42efc | 1018 | Packet.ReadFormatCapacity.allocation_length_lo = 12;\r |
1019 | Status = AtapiPacketCommandIn (\r | |
1020 | IdeDev,\r | |
1021 | &Packet,\r | |
1022 | (UINT16 *) &FormatData,\r | |
1e23bd8d | 1023 | sizeof (ATAPI_READ_FORMAT_CAPACITY_DATA),\r |
ead42efc | 1024 | ATAPITIMEOUT\r |
1025 | );\r | |
1026 | }\r | |
1027 | \r | |
1028 | if (Status == EFI_TIMEOUT) {\r | |
1029 | *SenseCount = 0;\r | |
1030 | return Status;\r | |
1031 | }\r | |
1032 | \r | |
1033 | SenseStatus = AtapiRequestSense (IdeDev, SenseCount);\r | |
1034 | \r | |
1035 | if (!EFI_ERROR (SenseStatus)) {\r | |
1036 | \r | |
1037 | if (!EFI_ERROR (Status)) {\r | |
1038 | \r | |
1039 | if (IdeDev->Type == IdeCdRom) {\r | |
1040 | \r | |
1041 | IdeDev->BlkIo.Media->LastBlock = (Data.LastLba3 << 24) |\r | |
1042 | (Data.LastLba2 << 16) |\r | |
1043 | (Data.LastLba1 << 8) |\r | |
1044 | Data.LastLba0;\r | |
1045 | \r | |
1046 | if (IdeDev->BlkIo.Media->LastBlock != 0) {\r | |
1047 | \r | |
1048 | IdeDev->BlkIo.Media->BlockSize = (Data.BlockSize3 << 24) |\r | |
1049 | (Data.BlockSize2 << 16) |\r | |
1050 | (Data.BlockSize1 << 8) |\r | |
1051 | Data.BlockSize0;\r | |
1052 | \r | |
1053 | IdeDev->BlkIo.Media->MediaPresent = TRUE;\r | |
1054 | } else {\r | |
1055 | IdeDev->BlkIo.Media->MediaPresent = FALSE;\r | |
1056 | return EFI_DEVICE_ERROR;\r | |
1057 | }\r | |
1058 | \r | |
1059 | IdeDev->BlkIo.Media->ReadOnly = TRUE;\r | |
1060 | \r | |
1061 | //\r | |
1062 | // Because the user data portion in the sector of the Data CD supported\r | |
1063 | // is always 0x800\r | |
1064 | //\r | |
1065 | IdeDev->BlkIo.Media->BlockSize = 0x800;\r | |
1066 | }\r | |
1067 | \r | |
1068 | if (IdeDev->Type == IdeMagnetic) {\r | |
1069 | \r | |
1070 | if (FormatData.DesCode == 3) {\r | |
1071 | IdeDev->BlkIo.Media->MediaPresent = FALSE;\r | |
1072 | IdeDev->BlkIo.Media->LastBlock = 0;\r | |
1073 | } else {\r | |
1074 | \r | |
1075 | IdeDev->BlkIo.Media->LastBlock = (FormatData.LastLba3 << 24) |\r | |
1076 | (FormatData.LastLba2 << 16) | \r | |
1077 | (FormatData.LastLba1 << 8) |\r | |
1078 | FormatData.LastLba0;\r | |
1079 | if (IdeDev->BlkIo.Media->LastBlock != 0) {\r | |
1080 | IdeDev->BlkIo.Media->LastBlock--;\r | |
1081 | \r | |
1082 | IdeDev->BlkIo.Media->BlockSize = (FormatData.BlockSize2 << 16) |\r | |
1083 | (FormatData.BlockSize1 << 8) |\r | |
1084 | FormatData.BlockSize0;\r | |
1085 | \r | |
1086 | IdeDev->BlkIo.Media->MediaPresent = TRUE;\r | |
1087 | } else {\r | |
1088 | IdeDev->BlkIo.Media->MediaPresent = FALSE;\r | |
1089 | //\r | |
1090 | // Return EFI_NOT_READY operation succeeds but returned capacity is 0\r | |
1091 | //\r | |
1092 | return EFI_NOT_READY;\r | |
1093 | }\r | |
1094 | \r | |
1095 | IdeDev->BlkIo.Media->BlockSize = 0x200;\r | |
1096 | \r | |
1097 | }\r | |
1098 | }\r | |
1099 | }\r | |
1100 | \r | |
1101 | return EFI_SUCCESS;\r | |
1102 | \r | |
1103 | } else {\r | |
1104 | *SenseCount = 0;\r | |
1105 | return EFI_DEVICE_ERROR;\r | |
1106 | }\r | |
1107 | }\r | |
1108 | \r | |
1109 | /**\r | |
1110 | Used before read/write blocks from/to ATAPI device media. \r | |
1111 | Since ATAPI device media is removable, it is necessary to detect\r | |
1112 | whether media is present and get current present media's\r | |
1113 | information, and if media has been changed, Block I/O Protocol\r | |
1114 | need to be reinstalled.\r | |
1115 | \r | |
1116 | @param[in] *IdeDev\r | |
1117 | pointer pointing to IDE_BLK_IO_DEV data structure, used\r | |
1118 | to record all the information of the IDE device.\r | |
1119 | \r | |
1120 | @param[out] *MediaChange\r | |
1121 | return value that indicates if the media of the device has been\r | |
1122 | changed.\r | |
1123 | \r | |
1124 | @retval EFI_SUCCESS\r | |
1125 | media found successfully.\r | |
1126 | \r | |
1127 | @retval EFI_DEVICE_ERROR\r | |
1128 | any error encounters during media detection.\r | |
1129 | \r | |
1130 | @retval EFI_NO_MEDIA\r | |
1131 | media not found.\r | |
1132 | \r | |
1133 | @note\r | |
1134 | parameter IdeDev may be updated in this function.\r | |
1135 | \r | |
1136 | **/\r | |
1137 | EFI_STATUS\r | |
1138 | AtapiDetectMedia (\r | |
1139 | IN IDE_BLK_IO_DEV *IdeDev,\r | |
1140 | OUT BOOLEAN *MediaChange\r | |
1141 | )\r | |
1142 | {\r | |
1143 | EFI_STATUS Status;\r | |
1144 | EFI_STATUS CleanStateStatus;\r | |
1145 | EFI_BLOCK_IO_MEDIA OldMediaInfo;\r | |
1146 | UINTN RetryTimes;\r | |
1147 | UINTN RetryNotReady;\r | |
1148 | UINTN SenseCount;\r | |
1149 | SENSE_RESULT SResult;\r | |
1150 | BOOLEAN WriteProtected;\r | |
1151 | \r | |
1152 | CopyMem (&OldMediaInfo, IdeDev->BlkIo.Media, sizeof (EFI_BLOCK_IO_MEDIA));\r | |
1153 | *MediaChange = FALSE;\r | |
1154 | //\r | |
1155 | // Retry for SenseDeviceNotReadyNeedRetry.\r | |
1156 | // Each retry takes 1s and we limit the upper boundary to\r | |
1157 | // 120 times about 2 min.\r | |
1158 | //\r | |
1159 | RetryNotReady = 120;\r | |
1160 | \r | |
1161 | //\r | |
1162 | // Do Test Unit Ready\r | |
1163 | //\r | |
1164 | DoTUR:\r | |
1165 | //\r | |
1166 | // Retry 5 times\r | |
1167 | //\r | |
1168 | RetryTimes = 5;\r | |
1169 | while (RetryTimes != 0) {\r | |
1170 | \r | |
1171 | Status = AtapiTestUnitReady (IdeDev, &SenseCount);\r | |
1172 | \r | |
1173 | if (EFI_ERROR (Status)) {\r | |
1174 | //\r | |
1175 | // Test Unit Ready error without sense data.\r | |
1176 | // For some devices, this means there's extra data\r | |
1177 | // that has not been read, so we read these extra\r | |
1178 | // data out before going on.\r | |
1179 | //\r | |
1180 | CleanStateStatus = AtapiReadPendingData (IdeDev);\r | |
1181 | if (EFI_ERROR (CleanStateStatus)) {\r | |
1182 | //\r | |
1183 | // Busy wait failed, try again\r | |
1184 | //\r | |
1185 | RetryTimes--;\r | |
1186 | }\r | |
1187 | //\r | |
1188 | // Try again without counting down RetryTimes\r | |
1189 | //\r | |
1190 | continue;\r | |
1191 | } else {\r | |
1192 | \r | |
1193 | ParseSenseData (IdeDev, SenseCount, &SResult);\r | |
1194 | \r | |
1195 | switch (SResult) {\r | |
1196 | case SenseNoSenseKey:\r | |
1197 | if (IdeDev->BlkIo.Media->MediaPresent) {\r | |
1198 | goto Done;\r | |
1199 | } else {\r | |
1200 | //\r | |
1201 | // Media present but the internal structure need refreshed.\r | |
1202 | // Try Read Capacity\r | |
1203 | //\r | |
1204 | goto DoRC;\r | |
1205 | }\r | |
1206 | break;\r | |
1207 | \r | |
1208 | case SenseDeviceNotReadyNeedRetry:\r | |
1209 | if (--RetryNotReady == 0) {\r | |
1210 | return EFI_DEVICE_ERROR;\r | |
1211 | }\r | |
1212 | gBS->Stall (1000 * STALL_1_MILLI_SECOND);\r | |
1213 | continue;\r | |
1214 | break;\r | |
1215 | \r | |
1216 | case SenseNoMedia:\r | |
1217 | IdeDev->BlkIo.Media->MediaPresent = FALSE;\r | |
1218 | IdeDev->BlkIo.Media->LastBlock = 0;\r | |
1219 | goto Done;\r | |
1220 | break;\r | |
1221 | \r | |
1222 | case SenseDeviceNotReadyNoRetry:\r | |
1223 | case SenseMediaError:\r | |
1224 | return EFI_DEVICE_ERROR;\r | |
1225 | \r | |
1226 | case SenseMediaChange:\r | |
1227 | IdeDev->BlkIo.Media->MediaId++;\r | |
1228 | goto DoRC;\r | |
1229 | break;\r | |
1230 | \r | |
1231 | default:\r | |
1232 | RetryTimes--;\r | |
1233 | break;\r | |
1234 | }\r | |
1235 | }\r | |
1236 | }\r | |
1237 | \r | |
1238 | return EFI_DEVICE_ERROR;\r | |
1239 | \r | |
1240 | //\r | |
1241 | // Do Read Capacity\r | |
1242 | //\r | |
1243 | DoRC:\r | |
1244 | RetryTimes = 5;\r | |
1245 | \r | |
1246 | while (RetryTimes != 0) {\r | |
1247 | \r | |
1248 | Status = AtapiReadCapacity (IdeDev, &SenseCount);\r | |
1249 | \r | |
1250 | if (EFI_ERROR (Status)) {\r | |
1251 | RetryTimes--;\r | |
1252 | continue;\r | |
1253 | } else {\r | |
1254 | \r | |
1255 | ParseSenseData (IdeDev, SenseCount, &SResult);\r | |
1256 | \r | |
1257 | switch (SResult) {\r | |
1258 | case SenseNoSenseKey:\r | |
1259 | goto Done;\r | |
1260 | break;\r | |
1261 | \r | |
1262 | case SenseDeviceNotReadyNeedRetry:\r | |
1263 | //\r | |
1264 | // We use Test Unit Ready to retry which\r | |
1265 | // is faster.\r | |
1266 | //\r | |
1267 | goto DoTUR;\r | |
1268 | break;\r | |
1269 | \r | |
1270 | case SenseNoMedia:\r | |
1271 | IdeDev->BlkIo.Media->MediaPresent = FALSE;\r | |
1272 | IdeDev->BlkIo.Media->LastBlock = 0;\r | |
1273 | goto Done;\r | |
1274 | break;\r | |
1275 | \r | |
1276 | case SenseDeviceNotReadyNoRetry:\r | |
1277 | case SenseMediaError:\r | |
1278 | return EFI_DEVICE_ERROR;\r | |
1279 | \r | |
1280 | case SenseMediaChange:\r | |
1281 | IdeDev->BlkIo.Media->MediaId++;\r | |
1282 | continue;\r | |
1283 | break;\r | |
1284 | \r | |
1285 | default:\r | |
1286 | RetryTimes--;\r | |
1287 | break;\r | |
1288 | }\r | |
1289 | }\r | |
1290 | }\r | |
1291 | \r | |
1292 | return EFI_DEVICE_ERROR;\r | |
1293 | \r | |
1294 | Done:\r | |
1295 | //\r | |
1296 | // the following code is to check the write-protected for LS120 media\r | |
1297 | //\r | |
1298 | if ((IdeDev->BlkIo.Media->MediaPresent) && (IdeDev->Type == IdeMagnetic)) {\r | |
1299 | \r | |
1300 | Status = IsLS120orZipWriteProtected (IdeDev, &WriteProtected);\r | |
1301 | if (!EFI_ERROR (Status)) {\r | |
1302 | \r | |
1303 | if (WriteProtected) {\r | |
1304 | \r | |
1305 | IdeDev->BlkIo.Media->ReadOnly = TRUE;\r | |
1306 | } else {\r | |
1307 | \r | |
1308 | IdeDev->BlkIo.Media->ReadOnly = FALSE;\r | |
1309 | }\r | |
1310 | \r | |
1311 | }\r | |
1312 | }\r | |
1313 | \r | |
1314 | if (IdeDev->BlkIo.Media->MediaId != OldMediaInfo.MediaId) {\r | |
1315 | //\r | |
1316 | // Media change information got from the device\r | |
1317 | //\r | |
1318 | *MediaChange = TRUE;\r | |
1319 | }\r | |
1320 | \r | |
1321 | if (IdeDev->BlkIo.Media->ReadOnly != OldMediaInfo.ReadOnly) {\r | |
1322 | *MediaChange = TRUE;\r | |
1323 | IdeDev->BlkIo.Media->MediaId += 1;\r | |
1324 | }\r | |
1325 | \r | |
1326 | if (IdeDev->BlkIo.Media->BlockSize != OldMediaInfo.BlockSize) {\r | |
1327 | *MediaChange = TRUE;\r | |
1328 | IdeDev->BlkIo.Media->MediaId += 1;\r | |
1329 | }\r | |
1330 | \r | |
1331 | if (IdeDev->BlkIo.Media->LastBlock != OldMediaInfo.LastBlock) {\r | |
1332 | *MediaChange = TRUE;\r | |
1333 | IdeDev->BlkIo.Media->MediaId += 1;\r | |
1334 | }\r | |
1335 | \r | |
1336 | if (IdeDev->BlkIo.Media->MediaPresent != OldMediaInfo.MediaPresent) {\r | |
1337 | if (IdeDev->BlkIo.Media->MediaPresent) {\r | |
1338 | //\r | |
1339 | // when change from no media to media present, reset the MediaId to 1.\r | |
1340 | //\r | |
1341 | IdeDev->BlkIo.Media->MediaId = 1;\r | |
1342 | } else {\r | |
1343 | //\r | |
1344 | // when no media, reset the MediaId to zero.\r | |
1345 | //\r | |
1346 | IdeDev->BlkIo.Media->MediaId = 0;\r | |
1347 | }\r | |
1348 | \r | |
1349 | *MediaChange = TRUE;\r | |
1350 | }\r | |
1351 | \r | |
1352 | //\r | |
1353 | // if any change on current existing media,\r | |
1354 | // the Block I/O protocol need to be reinstalled.\r | |
1355 | //\r | |
1356 | if (*MediaChange) {\r | |
1357 | gBS->ReinstallProtocolInterface (\r | |
1358 | IdeDev->Handle,\r | |
1359 | &gEfiBlockIoProtocolGuid,\r | |
1360 | &IdeDev->BlkIo,\r | |
1361 | &IdeDev->BlkIo\r | |
1362 | );\r | |
1363 | }\r | |
1364 | \r | |
1365 | if (IdeDev->BlkIo.Media->MediaPresent) {\r | |
1366 | return EFI_SUCCESS;\r | |
1367 | } else {\r | |
1368 | return EFI_NO_MEDIA;\r | |
1369 | }\r | |
1370 | }\r | |
1371 | \r | |
1372 | /**\r | |
1373 | This function is called by the AtapiBlkIoReadBlocks() to perform\r | |
1374 | read from media in block unit.\r | |
1375 | \r | |
1376 | The main command used to access media here is READ(10) Command. \r | |
1377 | READ(10) Command requests that the ATAPI device media transfer \r | |
1378 | specified data to the host. Data is transferred in block(sector) \r | |
1379 | unit. The maximum number of blocks that can be transferred once is\r | |
1380 | 65536. This is the main difference between READ(10) and READ(12) \r | |
1381 | Command. The maximum number of blocks in READ(12) is 2 power 32.\r | |
1382 | \r | |
1383 | @param[in] *IdeDev\r | |
1384 | pointer pointing to IDE_BLK_IO_DEV data structure, used\r | |
1385 | to record all the information of the IDE device.\r | |
1386 | \r | |
1387 | @param[in] *Buffer\r | |
1388 | A pointer to the destination buffer for the data. \r | |
1389 | \r | |
1390 | @param[in] Lba\r | |
1391 | The starting logical block address to read from \r | |
1392 | on the device media.\r | |
1393 | \r | |
1394 | @param[in] NumberOfBlocks\r | |
1395 | The number of transfer data blocks.\r | |
1396 | \r | |
1397 | @return status is fully dependent on the return status\r | |
1398 | of AtapiPacketCommandIn() function.\r | |
1399 | \r | |
1400 | **/\r | |
1401 | EFI_STATUS\r | |
1402 | AtapiReadSectors (\r | |
1403 | IN IDE_BLK_IO_DEV *IdeDev,\r | |
1404 | IN VOID *Buffer,\r | |
1405 | IN EFI_LBA Lba,\r | |
1406 | IN UINTN NumberOfBlocks\r | |
1407 | )\r | |
1408 | {\r | |
1409 | \r | |
1410 | ATAPI_PACKET_COMMAND Packet;\r | |
1e23bd8d | 1411 | ATAPI_READ10_CMD *Read10Packet;\r |
ead42efc | 1412 | EFI_STATUS Status;\r |
1413 | UINTN BlocksRemaining;\r | |
1414 | UINT32 Lba32;\r | |
1415 | UINT32 BlockSize;\r | |
1416 | UINT32 ByteCount;\r | |
1417 | UINT16 SectorCount;\r | |
1418 | VOID *PtrBuffer;\r | |
1419 | UINT16 MaxBlock;\r | |
1420 | UINTN TimeOut;\r | |
1421 | \r | |
1422 | //\r | |
1423 | // fill command packet for Read(10) command\r | |
1424 | //\r | |
1425 | ZeroMem (&Packet, sizeof (ATAPI_PACKET_COMMAND));\r | |
1426 | Read10Packet = &Packet.Read10;\r | |
1427 | Lba32 = (UINT32) Lba;\r | |
1428 | PtrBuffer = Buffer;\r | |
1429 | \r | |
1430 | BlockSize = IdeDev->BlkIo.Media->BlockSize;\r | |
1431 | \r | |
1432 | //\r | |
1433 | // limit the data bytes that can be transferred by one Read(10) Command\r | |
1434 | //\r | |
1435 | MaxBlock = 65535;\r | |
1436 | \r | |
1437 | BlocksRemaining = NumberOfBlocks;\r | |
1438 | \r | |
1439 | Status = EFI_SUCCESS;\r | |
1440 | while (BlocksRemaining > 0) {\r | |
1441 | \r | |
1442 | if (BlocksRemaining <= MaxBlock) {\r | |
1443 | \r | |
1444 | SectorCount = (UINT16) BlocksRemaining;\r | |
1445 | } else {\r | |
1446 | \r | |
1447 | SectorCount = MaxBlock;\r | |
1448 | }\r | |
1449 | \r | |
1450 | //\r | |
1451 | // fill the Packet data structure\r | |
1452 | //\r | |
1453 | \r | |
1e23bd8d | 1454 | Read10Packet->opcode = ATA_CMD_READ_10;\r |
ead42efc | 1455 | \r |
1456 | //\r | |
1457 | // Lba0 ~ Lba3 specify the start logical block address of the data transfer.\r | |
1458 | // Lba0 is MSB, Lba3 is LSB\r | |
1459 | //\r | |
1460 | Read10Packet->Lba3 = (UINT8) (Lba32 & 0xff);\r | |
1461 | Read10Packet->Lba2 = (UINT8) (Lba32 >> 8);\r | |
1462 | Read10Packet->Lba1 = (UINT8) (Lba32 >> 16);\r | |
1463 | Read10Packet->Lba0 = (UINT8) (Lba32 >> 24);\r | |
1464 | \r | |
1465 | //\r | |
1466 | // TranLen0 ~ TranLen1 specify the transfer length in block unit.\r | |
1467 | // TranLen0 is MSB, TranLen is LSB\r | |
1468 | //\r | |
1469 | Read10Packet->TranLen1 = (UINT8) (SectorCount & 0xff);\r | |
1470 | Read10Packet->TranLen0 = (UINT8) (SectorCount >> 8);\r | |
1471 | \r | |
1472 | ByteCount = SectorCount * BlockSize;\r | |
1473 | \r | |
1474 | if (IdeDev->Type == IdeCdRom) {\r | |
1475 | TimeOut = CDROMLONGTIMEOUT;\r | |
1476 | } else {\r | |
1477 | TimeOut = ATAPILONGTIMEOUT;\r | |
1478 | }\r | |
1479 | \r | |
1480 | Status = AtapiPacketCommandIn (\r | |
1481 | IdeDev,\r | |
1482 | &Packet,\r | |
1483 | (UINT16 *) PtrBuffer,\r | |
1484 | ByteCount,\r | |
1485 | TimeOut\r | |
1486 | );\r | |
1487 | if (EFI_ERROR (Status)) {\r | |
1488 | return Status;\r | |
1489 | }\r | |
1490 | \r | |
1491 | Lba32 += SectorCount;\r | |
1492 | PtrBuffer = (UINT8 *) PtrBuffer + SectorCount * BlockSize;\r | |
1493 | BlocksRemaining -= SectorCount;\r | |
1494 | }\r | |
1495 | \r | |
1496 | return Status;\r | |
1497 | }\r | |
1498 | \r | |
1499 | /**\r | |
1500 | This function is called by the AtapiBlkIoWriteBlocks() to perform\r | |
1501 | write onto media in block unit.\r | |
1502 | The main command used to access media here is Write(10) Command. \r | |
1503 | Write(10) Command requests that the ATAPI device media transfer \r | |
1504 | specified data to the host. Data is transferred in block (sector) \r | |
1505 | unit. The maximum number of blocks that can be transferred once is\r | |
1506 | 65536. \r | |
1507 | \r | |
1508 | @param[in] *IdeDev\r | |
1509 | pointer pointing to IDE_BLK_IO_DEV data structure, used\r | |
1510 | to record all the information of the IDE device.\r | |
1511 | \r | |
1512 | @param[in] *Buffer\r | |
1513 | A pointer to the source buffer for the data. \r | |
1514 | \r | |
1515 | @param[in] Lba\r | |
1516 | The starting logical block address to write onto \r | |
1517 | the device media.\r | |
1518 | \r | |
1519 | @param[in] NumberOfBlocks\r | |
1520 | The number of transfer data blocks.\r | |
1521 | \r | |
1522 | @return status is fully dependent on the return status\r | |
1523 | of AtapiPacketCommandOut() function.\r | |
1524 | \r | |
1525 | **/\r | |
1526 | EFI_STATUS\r | |
1527 | AtapiWriteSectors (\r | |
1528 | IN IDE_BLK_IO_DEV *IdeDev,\r | |
1529 | IN VOID *Buffer,\r | |
1530 | IN EFI_LBA Lba,\r | |
1531 | IN UINTN NumberOfBlocks\r | |
1532 | )\r | |
1533 | {\r | |
1534 | \r | |
1535 | ATAPI_PACKET_COMMAND Packet;\r | |
1e23bd8d | 1536 | ATAPI_READ10_CMD *Read10Packet;\r |
ead42efc | 1537 | \r |
1538 | EFI_STATUS Status;\r | |
1539 | UINTN BlocksRemaining;\r | |
1540 | UINT32 Lba32;\r | |
1541 | UINT32 BlockSize;\r | |
1542 | UINT32 ByteCount;\r | |
1543 | UINT16 SectorCount;\r | |
1544 | VOID *PtrBuffer;\r | |
1545 | UINT16 MaxBlock;\r | |
1546 | \r | |
1547 | //\r | |
1548 | // fill command packet for Write(10) command\r | |
1549 | // Write(10) command packet has the same data structure as\r | |
1550 | // Read(10) command packet,\r | |
1551 | // so here use the Read10Packet data structure\r | |
1552 | // for the Write(10) command packet.\r | |
1553 | //\r | |
1554 | ZeroMem (&Packet, sizeof (ATAPI_PACKET_COMMAND));\r | |
1555 | Read10Packet = &Packet.Read10;\r | |
1556 | \r | |
1557 | Lba32 = (UINT32) Lba;\r | |
1558 | PtrBuffer = Buffer;\r | |
1559 | \r | |
1560 | BlockSize = IdeDev->BlkIo.Media->BlockSize;\r | |
1561 | \r | |
1562 | //\r | |
1563 | // limit the data bytes that can be transferred by one Read(10) Command\r | |
1564 | //\r | |
1565 | MaxBlock = (UINT16) (65536 / BlockSize);\r | |
1566 | \r | |
1567 | BlocksRemaining = NumberOfBlocks;\r | |
1568 | \r | |
1569 | Status = EFI_SUCCESS;\r | |
1570 | while (BlocksRemaining > 0) {\r | |
1571 | \r | |
1572 | if (BlocksRemaining >= MaxBlock) {\r | |
1573 | SectorCount = MaxBlock;\r | |
1574 | } else {\r | |
1575 | SectorCount = (UINT16) BlocksRemaining;\r | |
1576 | }\r | |
1577 | \r | |
1578 | //\r | |
1579 | // Command code is WRITE_10.\r | |
1580 | //\r | |
1e23bd8d | 1581 | Read10Packet->opcode = ATA_CMD_WRITE_10;\r |
ead42efc | 1582 | \r |
1583 | //\r | |
1584 | // Lba0 ~ Lba3 specify the start logical block address of the data transfer.\r | |
1585 | // Lba0 is MSB, Lba3 is LSB\r | |
1586 | //\r | |
1587 | Read10Packet->Lba3 = (UINT8) (Lba32 & 0xff);\r | |
1588 | Read10Packet->Lba2 = (UINT8) (Lba32 >> 8);\r | |
1589 | Read10Packet->Lba1 = (UINT8) (Lba32 >> 16);\r | |
1590 | Read10Packet->Lba0 = (UINT8) (Lba32 >> 24);\r | |
1591 | \r | |
1592 | //\r | |
1593 | // TranLen0 ~ TranLen1 specify the transfer length in block unit.\r | |
1594 | // TranLen0 is MSB, TranLen is LSB\r | |
1595 | //\r | |
1596 | Read10Packet->TranLen1 = (UINT8) (SectorCount & 0xff);\r | |
1597 | Read10Packet->TranLen0 = (UINT8) (SectorCount >> 8);\r | |
1598 | \r | |
1599 | ByteCount = SectorCount * BlockSize;\r | |
1600 | \r | |
1601 | Status = AtapiPacketCommandOut (\r | |
1602 | IdeDev,\r | |
1603 | &Packet,\r | |
1604 | (UINT16 *) PtrBuffer,\r | |
1605 | ByteCount,\r | |
1606 | ATAPILONGTIMEOUT\r | |
1607 | );\r | |
1608 | if (EFI_ERROR (Status)) {\r | |
1609 | return Status;\r | |
1610 | }\r | |
1611 | \r | |
1612 | Lba32 += SectorCount;\r | |
1613 | PtrBuffer = ((UINT8 *) PtrBuffer + SectorCount * BlockSize);\r | |
1614 | BlocksRemaining -= SectorCount;\r | |
1615 | }\r | |
1616 | \r | |
1617 | return Status;\r | |
1618 | }\r | |
1619 | \r | |
1620 | /**\r | |
1621 | This function is used to implement the Soft Reset on the specified\r | |
1622 | ATAPI device. Different from the AtaSoftReset(), here reset is a ATA\r | |
1623 | Soft Reset Command special for ATAPI device, and it only take effects\r | |
1624 | on the specified ATAPI device, not on the whole IDE bus.\r | |
1625 | Since the ATAPI soft reset is needed when device is in exceptional\r | |
1626 | condition (such as BSY bit is always set ), I think the Soft Reset\r | |
1627 | command should be sent without waiting for the BSY clear and DRDY\r | |
1628 | set.\r | |
1629 | This function is called by IdeBlkIoReset(), \r | |
1630 | a interface function of Block I/O protocol.\r | |
1631 | \r | |
1632 | @param[in] *IdeDev\r | |
1633 | pointer pointing to IDE_BLK_IO_DEV data structure, used\r | |
1634 | to record all the information of the IDE device.\r | |
1635 | \r | |
1636 | @retval EFI_SUCCESS\r | |
1637 | Soft reset completes successfully.\r | |
1638 | \r | |
1639 | @retval EFI_DEVICE_ERROR\r | |
1640 | Any step during the reset process is failed.\r | |
1641 | \r | |
1642 | **/\r | |
1643 | EFI_STATUS\r | |
1644 | AtapiSoftReset (\r | |
1645 | IN IDE_BLK_IO_DEV *IdeDev\r | |
1646 | )\r | |
1647 | {\r | |
1648 | UINT8 Command;\r | |
1649 | UINT8 DeviceSelect;\r | |
1650 | EFI_STATUS Status;\r | |
1651 | \r | |
1652 | //\r | |
1653 | // for ATAPI device, no need to wait DRDY ready after device selecting.\r | |
1654 | // (bit7 and bit5 are both set to 1 for backward compatibility)\r | |
1655 | //\r | |
1e23bd8d | 1656 | DeviceSelect = (UINT8) (((BIT7 | BIT5) | (IdeDev->Device << 4)));\r |
ead42efc | 1657 | IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->Head, DeviceSelect);\r |
1658 | \r | |
1e23bd8d | 1659 | Command = ATA_CMD_SOFT_RESET;\r |
ead42efc | 1660 | IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->Reg.Command, Command);\r |
1661 | \r | |
1662 | //\r | |
1663 | // BSY cleared is the only status return to the host by the device\r | |
1664 | // when reset is completed.\r | |
1665 | // slave device needs at most 31s to clear BSY\r | |
1666 | //\r | |
1667 | Status = WaitForBSYClear (IdeDev, 31000);\r | |
1668 | if (EFI_ERROR (Status)) {\r | |
1669 | return EFI_DEVICE_ERROR;\r | |
1670 | }\r | |
1671 | \r | |
1672 | //\r | |
1673 | // stall 5 seconds to make the device status stable\r | |
1674 | //\r | |
1675 | gBS->Stall (5000000);\r | |
1676 | \r | |
1677 | return EFI_SUCCESS;\r | |
1678 | }\r | |
1679 | \r | |
1680 | /**\r | |
1681 | This function is the ATAPI implementation for ReadBlocks in the\r | |
1682 | Block I/O Protocol interface.\r | |
1683 | \r | |
1684 | @param[in] *IdeBlkIoDev\r | |
1685 | Indicates the calling context.\r | |
1686 | \r | |
1687 | @param[in] MediaId\r | |
1688 | The media id that the read request is for.\r | |
1689 | \r | |
1690 | @param[in] LBA\r | |
1691 | The starting logical block address to read from \r | |
1692 | on the device.\r | |
1693 | \r | |
1694 | @param[in] BufferSize\r | |
1695 | The size of the Buffer in bytes. This must be a\r | |
1696 | multiple of the intrinsic block size of the device.\r | |
1697 | \r | |
1698 | @param[out] *Buffer\r | |
1699 | A pointer to the destination buffer for the data. \r | |
1700 | The caller is responsible for either having implicit\r | |
1701 | or explicit ownership of the memory that data is read into.\r | |
1702 | \r | |
1703 | @retval EFI_SUCCESS\r | |
1704 | Read Blocks successfully.\r | |
1705 | \r | |
1706 | @retval EFI_DEVICE_ERROR\r | |
1707 | Read Blocks failed.\r | |
1708 | \r | |
1709 | @retval EFI_NO_MEDIA\r | |
1710 | There is no media in the device.\r | |
1711 | \r | |
1712 | @retval EFI_MEDIA_CHANGED\r | |
1713 | The MediaId is not for the current media.\r | |
1714 | \r | |
1715 | @retval EFI_BAD_BUFFER_SIZE\r | |
1716 | The BufferSize parameter is not a multiple of the\r | |
1717 | intrinsic block size of the device.\r | |
1718 | \r | |
1719 | @retval EFI_INVALID_PARAMETER\r | |
1720 | The read request contains LBAs that are not valid,\r | |
1721 | or the data buffer is not valid.\r | |
1722 | \r | |
1723 | **/\r | |
1724 | EFI_STATUS\r | |
1725 | AtapiBlkIoReadBlocks (\r | |
1726 | IN IDE_BLK_IO_DEV *IdeBlkIoDevice,\r | |
1727 | IN UINT32 MediaId,\r | |
1728 | IN EFI_LBA LBA,\r | |
1729 | IN UINTN BufferSize,\r | |
1730 | OUT VOID *Buffer\r | |
1731 | )\r | |
1732 | {\r | |
1733 | EFI_BLOCK_IO_MEDIA *Media;\r | |
1734 | UINTN BlockSize;\r | |
1735 | UINTN NumberOfBlocks;\r | |
1736 | EFI_STATUS Status;\r | |
1737 | \r | |
1738 | BOOLEAN MediaChange;\r | |
1739 | \r | |
1740 | if (Buffer == NULL) {\r | |
1741 | return EFI_INVALID_PARAMETER;\r | |
1742 | }\r | |
1743 | \r | |
1744 | if (BufferSize == 0) {\r | |
1745 | return EFI_SUCCESS;\r | |
1746 | }\r | |
1747 | \r | |
1748 | //\r | |
1749 | // ATAPI device media is removable, so it is a must\r | |
1750 | // to detect media first before read operation\r | |
1751 | //\r | |
1752 | MediaChange = FALSE;\r | |
1753 | Status = AtapiDetectMedia (IdeBlkIoDevice, &MediaChange);\r | |
1754 | if (EFI_ERROR (Status)) {\r | |
1755 | \r | |
1756 | if (IdeBlkIoDevice->Cache != NULL) {\r | |
1757 | gBS->FreePool (IdeBlkIoDevice->Cache);\r | |
1758 | IdeBlkIoDevice->Cache = NULL;\r | |
1759 | }\r | |
1760 | \r | |
1761 | return Status;\r | |
1762 | }\r | |
1763 | //\r | |
1764 | // Get the intrinsic block size\r | |
1765 | //\r | |
1766 | Media = IdeBlkIoDevice->BlkIo.Media;\r | |
1767 | BlockSize = Media->BlockSize;\r | |
1768 | \r | |
1769 | NumberOfBlocks = BufferSize / BlockSize;\r | |
1770 | \r | |
1771 | if (!(Media->MediaPresent)) {\r | |
1772 | \r | |
1773 | if (IdeBlkIoDevice->Cache != NULL) {\r | |
1774 | gBS->FreePool (IdeBlkIoDevice->Cache);\r | |
1775 | IdeBlkIoDevice->Cache = NULL;\r | |
1776 | }\r | |
1777 | return EFI_NO_MEDIA;\r | |
1778 | \r | |
1779 | }\r | |
1780 | \r | |
1781 | if ((MediaId != Media->MediaId) || MediaChange) {\r | |
1782 | \r | |
1783 | if (IdeBlkIoDevice->Cache != NULL) {\r | |
1784 | gBS->FreePool (IdeBlkIoDevice->Cache);\r | |
1785 | IdeBlkIoDevice->Cache = NULL;\r | |
1786 | }\r | |
1787 | return EFI_MEDIA_CHANGED;\r | |
1788 | }\r | |
1789 | \r | |
1790 | if (BufferSize % BlockSize != 0) {\r | |
1791 | return EFI_BAD_BUFFER_SIZE;\r | |
1792 | }\r | |
1793 | \r | |
1794 | if (LBA > Media->LastBlock) {\r | |
1795 | return EFI_INVALID_PARAMETER;\r | |
1796 | }\r | |
1797 | \r | |
1798 | if ((LBA + NumberOfBlocks - 1) > Media->LastBlock) {\r | |
1799 | return EFI_INVALID_PARAMETER;\r | |
1800 | }\r | |
1801 | \r | |
1802 | if ((Media->IoAlign > 1) && (((UINTN) Buffer & (Media->IoAlign - 1)) != 0)) {\r | |
1803 | return EFI_INVALID_PARAMETER;\r | |
1804 | }\r | |
1805 | \r | |
1806 | //\r | |
1807 | // if all the parameters are valid, then perform read sectors command\r | |
1808 | // to transfer data from device to host.\r | |
1809 | //\r | |
1810 | Status = AtapiReadSectors (IdeBlkIoDevice, Buffer, LBA, NumberOfBlocks);\r | |
1811 | if (EFI_ERROR (Status)) {\r | |
1812 | return EFI_DEVICE_ERROR;\r | |
1813 | }\r | |
1814 | \r | |
1815 | //\r | |
1816 | // Read blocks succeeded\r | |
1817 | //\r | |
1818 | \r | |
1819 | //\r | |
1820 | // save the first block to the cache for performance\r | |
1821 | //\r | |
1822 | if (LBA == 0 && !IdeBlkIoDevice->Cache) {\r | |
1823 | IdeBlkIoDevice->Cache = AllocatePool (BlockSize);\r | |
1824 | if (IdeBlkIoDevice != NULL) {\r | |
1825 | CopyMem ((UINT8 *) IdeBlkIoDevice->Cache, (UINT8 *) Buffer, BlockSize);\r | |
1826 | }\r | |
1827 | }\r | |
1828 | \r | |
1829 | return EFI_SUCCESS;\r | |
1830 | \r | |
1831 | }\r | |
1832 | \r | |
1833 | /**\r | |
1834 | This function is the ATAPI implementation for WriteBlocks in the\r | |
1835 | Block I/O Protocol interface.\r | |
1836 | \r | |
1837 | @param[in] *This\r | |
1838 | Indicates the calling context.\r | |
1839 | \r | |
1840 | @param[in] MediaId\r | |
1841 | The media id that the write request is for.\r | |
1842 | \r | |
1843 | @param[in] LBA\r | |
1844 | The starting logical block address to write onto \r | |
1845 | the device.\r | |
1846 | \r | |
1847 | @param[in] BufferSize\r | |
1848 | The size of the Buffer in bytes. This must be a\r | |
1849 | multiple of the intrinsic block size of the device.\r | |
1850 | \r | |
1851 | @param[out] *Buffer\r | |
1852 | A pointer to the source buffer for the data. \r | |
1853 | The caller is responsible for either having implicit\r | |
1854 | or explicit ownership of the memory that data is \r | |
1855 | written from.\r | |
1856 | \r | |
1857 | @retval EFI_SUCCESS\r | |
1858 | Write Blocks successfully.\r | |
1859 | \r | |
1860 | @retval EFI_DEVICE_ERROR\r | |
1861 | Write Blocks failed.\r | |
1862 | \r | |
1863 | @retval EFI_NO_MEDIA\r | |
1864 | There is no media in the device.\r | |
1865 | \r | |
1866 | @retval EFI_MEDIA_CHANGE\r | |
1867 | The MediaId is not for the current media.\r | |
1868 | \r | |
1869 | @retval EFI_BAD_BUFFER_SIZE\r | |
1870 | The BufferSize parameter is not a multiple of the\r | |
1871 | intrinsic block size of the device.\r | |
1872 | \r | |
1873 | @retval EFI_INVALID_PARAMETER\r | |
1874 | The write request contains LBAs that are not valid,\r | |
1875 | or the data buffer is not valid.\r | |
1876 | \r | |
1877 | TODO: EFI_MEDIA_CHANGED - add return value to function comment\r | |
1878 | TODO: EFI_WRITE_PROTECTED - add return value to function comment\r | |
1879 | **/\r | |
1880 | EFI_STATUS\r | |
1881 | AtapiBlkIoWriteBlocks (\r | |
1882 | IN IDE_BLK_IO_DEV *IdeBlkIoDevice,\r | |
1883 | IN UINT32 MediaId,\r | |
1884 | IN EFI_LBA LBA,\r | |
1885 | IN UINTN BufferSize,\r | |
1886 | OUT VOID *Buffer\r | |
1887 | )\r | |
1888 | {\r | |
1889 | \r | |
1890 | EFI_BLOCK_IO_MEDIA *Media;\r | |
1891 | UINTN BlockSize;\r | |
1892 | UINTN NumberOfBlocks;\r | |
1893 | EFI_STATUS Status;\r | |
1894 | BOOLEAN MediaChange;\r | |
1895 | \r | |
1896 | if (LBA == 0 && IdeBlkIoDevice->Cache) {\r | |
1897 | gBS->FreePool (IdeBlkIoDevice->Cache);\r | |
1898 | IdeBlkIoDevice->Cache = NULL;\r | |
1899 | }\r | |
1900 | \r | |
1901 | if (Buffer == NULL) {\r | |
1902 | return EFI_INVALID_PARAMETER;\r | |
1903 | }\r | |
1904 | \r | |
1905 | if (BufferSize == 0) {\r | |
1906 | return EFI_SUCCESS;\r | |
1907 | }\r | |
1908 | \r | |
1909 | //\r | |
1910 | // ATAPI device media is removable,\r | |
1911 | // so it is a must to detect media first before write operation\r | |
1912 | //\r | |
1913 | MediaChange = FALSE;\r | |
1914 | Status = AtapiDetectMedia (IdeBlkIoDevice, &MediaChange);\r | |
1915 | if (EFI_ERROR (Status)) {\r | |
1916 | \r | |
1917 | if (LBA == 0 && IdeBlkIoDevice->Cache) {\r | |
1918 | gBS->FreePool (IdeBlkIoDevice->Cache);\r | |
1919 | IdeBlkIoDevice->Cache = NULL;\r | |
1920 | }\r | |
1921 | return Status;\r | |
1922 | }\r | |
1923 | \r | |
1924 | //\r | |
1925 | // Get the intrinsic block size\r | |
1926 | //\r | |
1927 | Media = IdeBlkIoDevice->BlkIo.Media;\r | |
1928 | BlockSize = Media->BlockSize;\r | |
1929 | NumberOfBlocks = BufferSize / BlockSize;\r | |
1930 | \r | |
1931 | if (!(Media->MediaPresent)) {\r | |
1932 | \r | |
1933 | if (LBA == 0 && IdeBlkIoDevice->Cache) {\r | |
1934 | gBS->FreePool (IdeBlkIoDevice->Cache);\r | |
1935 | IdeBlkIoDevice->Cache = NULL;\r | |
1936 | }\r | |
1937 | return EFI_NO_MEDIA;\r | |
1938 | }\r | |
1939 | \r | |
1940 | if ((MediaId != Media->MediaId) || MediaChange) {\r | |
1941 | \r | |
1942 | if (LBA == 0 && IdeBlkIoDevice->Cache) {\r | |
1943 | gBS->FreePool (IdeBlkIoDevice->Cache);\r | |
1944 | IdeBlkIoDevice->Cache = NULL;\r | |
1945 | }\r | |
1946 | return EFI_MEDIA_CHANGED;\r | |
1947 | }\r | |
1948 | \r | |
1949 | if (Media->ReadOnly) {\r | |
1950 | return EFI_WRITE_PROTECTED;\r | |
1951 | }\r | |
1952 | \r | |
1953 | if (BufferSize % BlockSize != 0) {\r | |
1954 | return EFI_BAD_BUFFER_SIZE;\r | |
1955 | }\r | |
1956 | \r | |
1957 | if (LBA > Media->LastBlock) {\r | |
1958 | return EFI_INVALID_PARAMETER;\r | |
1959 | }\r | |
1960 | \r | |
1961 | if ((LBA + NumberOfBlocks - 1) > Media->LastBlock) {\r | |
1962 | return EFI_INVALID_PARAMETER;\r | |
1963 | }\r | |
1964 | \r | |
1965 | if ((Media->IoAlign > 1) && (((UINTN) Buffer & (Media->IoAlign - 1)) != 0)) {\r | |
1966 | return EFI_INVALID_PARAMETER;\r | |
1967 | }\r | |
1968 | \r | |
1969 | //\r | |
1970 | // if all the parameters are valid,\r | |
1971 | // then perform write sectors command to transfer data from host to device.\r | |
1972 | //\r | |
1973 | Status = AtapiWriteSectors (IdeBlkIoDevice, Buffer, LBA, NumberOfBlocks);\r | |
1974 | if (EFI_ERROR (Status)) {\r | |
1975 | return EFI_DEVICE_ERROR;\r | |
1976 | }\r | |
1977 | \r | |
1978 | return EFI_SUCCESS;\r | |
1979 | \r | |
1980 | }\r | |
1981 | \r | |
1982 | /**\r | |
1983 | This function is used to parse sense data. Only the first\r | |
1984 | sense data is honoured.\r | |
1985 | \r | |
1986 | @param[in] IdeDev Indicates the calling context.\r | |
1987 | @param[in] SenseCount Count of sense data.\r | |
1988 | @param[out] Result The parsed result.\r | |
1989 | \r | |
1990 | @retval EFI_SUCCESS Successfully parsed.\r | |
1991 | @retval EFI_INVALID_PARAMETER Count of sense data is zero.\r | |
1992 | \r | |
1993 | **/\r | |
1994 | EFI_STATUS\r | |
1995 | ParseSenseData (\r | |
1996 | IN IDE_BLK_IO_DEV *IdeDev,\r | |
1997 | IN UINTN SenseCount,\r | |
1998 | OUT SENSE_RESULT *Result\r | |
1999 | )\r | |
2000 | {\r | |
1e23bd8d | 2001 | ATAPI_REQUEST_SENSE_DATA *SenseData;\r |
ead42efc | 2002 | \r |
2003 | if (SenseCount == 0) {\r | |
2004 | return EFI_INVALID_PARAMETER;\r | |
2005 | }\r | |
2006 | \r | |
2007 | //\r | |
2008 | // Only use the first sense data\r | |
2009 | //\r | |
2010 | SenseData = IdeDev->SenseData;\r | |
2011 | *Result = SenseOtherSense;\r | |
2012 | \r | |
2013 | switch (SenseData->sense_key) {\r | |
1e23bd8d | 2014 | case ATA_SK_NO_SENSE:\r |
ead42efc | 2015 | *Result = SenseNoSenseKey;\r |
2016 | break;\r | |
1e23bd8d | 2017 | case ATA_SK_NOT_READY:\r |
ead42efc | 2018 | switch (SenseData->addnl_sense_code) {\r |
1e23bd8d | 2019 | case ATA_ASC_NO_MEDIA:\r |
ead42efc | 2020 | *Result = SenseNoMedia;\r |
2021 | break;\r | |
1e23bd8d | 2022 | case ATA_ASC_MEDIA_UPSIDE_DOWN:\r |
ead42efc | 2023 | *Result = SenseMediaError;\r |
2024 | break;\r | |
1e23bd8d | 2025 | case ATA_ASC_NOT_READY:\r |
2026 | if (SenseData->addnl_sense_code_qualifier == ATA_ASCQ_IN_PROGRESS) {\r | |
ead42efc | 2027 | *Result = SenseDeviceNotReadyNeedRetry;\r |
2028 | } else {\r | |
2029 | *Result = SenseDeviceNotReadyNoRetry;\r | |
2030 | }\r | |
2031 | break;\r | |
2032 | }\r | |
2033 | break;\r | |
1e23bd8d | 2034 | case ATA_SK_UNIT_ATTENTION:\r |
2035 | if (SenseData->addnl_sense_code == ATA_ASC_MEDIA_CHANGE) {\r | |
ead42efc | 2036 | *Result = SenseMediaChange;\r |
2037 | }\r | |
2038 | break;\r | |
1e23bd8d | 2039 | case ATA_SK_MEDIUM_ERROR:\r |
ead42efc | 2040 | switch (SenseData->addnl_sense_code) {\r |
1e23bd8d | 2041 | case ATA_ASC_MEDIA_ERR1:\r |
2042 | case ATA_ASC_MEDIA_ERR2:\r | |
2043 | case ATA_ASC_MEDIA_ERR3:\r | |
2044 | case ATA_ASC_MEDIA_ERR4:\r | |
ead42efc | 2045 | *Result = SenseMediaError;\r |
2046 | break;\r | |
2047 | }\r | |
2048 | break;\r | |
2049 | default:\r | |
2050 | break;\r | |
2051 | }\r | |
2052 | \r | |
2053 | return EFI_SUCCESS;\r | |
2054 | }\r | |
2055 | \r | |
2056 | /**\r | |
2057 | This function reads the pending data in the device.\r | |
2058 | \r | |
2059 | @param[in] IdeDev Indicates the calling context.\r | |
2060 | \r | |
2061 | @retval EFI_SUCCESS Successfully read.\r | |
2062 | @retval EFI_NOT_READY The BSY is set avoiding reading.\r | |
2063 | \r | |
2064 | **/\r | |
2065 | EFI_STATUS\r | |
2066 | AtapiReadPendingData (\r | |
2067 | IN IDE_BLK_IO_DEV *IdeDev\r | |
2068 | )\r | |
2069 | {\r | |
2070 | UINT8 AltRegister;\r | |
2071 | UINT16 TempWordBuffer;\r | |
2072 | \r | |
2073 | AltRegister = IDEReadPortB (IdeDev->PciIo, IdeDev->IoPort->Alt.AltStatus);\r | |
1e23bd8d | 2074 | if ((AltRegister & ATA_STSREG_BSY) == ATA_STSREG_BSY) {\r |
ead42efc | 2075 | return EFI_NOT_READY;\r |
2076 | }\r | |
1e23bd8d | 2077 | if ((AltRegister & (ATA_STSREG_BSY | ATA_STSREG_DRQ)) == ATA_STSREG_DRQ) {\r |
ead42efc | 2078 | TempWordBuffer = IDEReadPortB (IdeDev->PciIo,IdeDev->IoPort->Alt.AltStatus);\r |
1e23bd8d | 2079 | while ((TempWordBuffer & (ATA_STSREG_BSY | ATA_STSREG_DRQ)) == ATA_STSREG_DRQ) {\r |
ead42efc | 2080 | IDEReadPortWMultiple (\r |
2081 | IdeDev->PciIo,\r | |
2082 | IdeDev->IoPort->Data, \r | |
2083 | 1, \r | |
2084 | &TempWordBuffer\r | |
2085 | );\r | |
2086 | TempWordBuffer = IDEReadPortB (IdeDev->PciIo,IdeDev->IoPort->Alt.AltStatus);\r | |
2087 | }\r | |
2088 | }\r | |
2089 | return EFI_SUCCESS;\r | |
2090 | }\r | |
2091 | \r | |
2092 | /**\r | |
2093 | TODO: Add function description\r | |
2094 | \r | |
2095 | @param IdeDev TODO: add argument description\r | |
2096 | @param WriteProtected TODO: add argument description\r | |
2097 | \r | |
2098 | @retval EFI_DEVICE_ERROR TODO: Add description for return value\r | |
2099 | @retval EFI_DEVICE_ERROR TODO: Add description for return value\r | |
2100 | @retval EFI_SUCCESS TODO: Add description for return value\r | |
2101 | \r | |
2102 | **/\r | |
2103 | EFI_STATUS\r | |
2104 | IsLS120orZipWriteProtected (\r | |
2105 | IN IDE_BLK_IO_DEV *IdeDev,\r | |
2106 | OUT BOOLEAN *WriteProtected\r | |
2107 | )\r | |
2108 | {\r | |
2109 | EFI_STATUS Status;\r | |
2110 | \r | |
2111 | *WriteProtected = FALSE;\r | |
2112 | \r | |
2113 | Status = LS120EnableMediaStatus (IdeDev, TRUE);\r | |
2114 | if (EFI_ERROR (Status)) {\r | |
2115 | return EFI_DEVICE_ERROR;\r | |
2116 | }\r | |
2117 | \r | |
2118 | //\r | |
2119 | // the Get Media Status Command is only valid\r | |
2120 | // if a Set Features/Enable Media Status Command has been priviously issued.\r | |
2121 | //\r | |
2122 | if (LS120GetMediaStatus (IdeDev) == EFI_WRITE_PROTECTED) {\r | |
2123 | \r | |
2124 | *WriteProtected = TRUE;\r | |
2125 | } else {\r | |
2126 | \r | |
2127 | *WriteProtected = FALSE;\r | |
2128 | }\r | |
2129 | \r | |
2130 | //\r | |
2131 | // After Get Media Status Command completes,\r | |
2132 | // Set Features/Disable Media Command should be sent.\r | |
2133 | //\r | |
2134 | Status = LS120EnableMediaStatus (IdeDev, FALSE);\r | |
2135 | if (EFI_ERROR (Status)) {\r | |
2136 | return EFI_DEVICE_ERROR;\r | |
2137 | }\r | |
2138 | \r | |
2139 | return EFI_SUCCESS;\r | |
2140 | }\r |