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1 | /** @file\r |
2 | \r | |
3 | Block I/O protocol for CE-ATA device\r | |
4 | \r | |
5 | Copyright (c) 2013-2015 Intel Corporation.\r | |
6 | \r | |
7 | This program and the accompanying materials\r | |
8 | are licensed and made available under the terms and conditions of the BSD License\r | |
9 | which accompanies this distribution. The full text of the license may be found at\r | |
10 | http://opensource.org/licenses/bsd-license.php\r | |
11 | \r | |
12 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
13 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
14 | \r | |
15 | **/\r | |
16 | \r | |
17 | #include "SDMediaDevice.h"\r | |
18 | \r | |
19 | /**\r | |
20 | Implements EFI_BLOCK_IO_PROTOCOL.Reset() function.\r | |
21 | \r | |
22 | @param This The EFI_BLOCK_IO_PROTOCOL instance.\r | |
23 | @param ExtendedVerification Indicates that the driver may perform a more exhaustive.\r | |
24 | verification operation of the device during reset.\r | |
25 | (This parameter is ingored in this driver.)\r | |
26 | \r | |
27 | @retval EFI_SUCCESS Success\r | |
28 | **/\r | |
29 | EFI_STATUS\r | |
30 | EFIAPI\r | |
31 | CEATABlockReset (\r | |
32 | IN EFI_BLOCK_IO_PROTOCOL *This,\r | |
33 | IN BOOLEAN ExtendedVerification\r | |
34 | )\r | |
35 | {\r | |
36 | EFI_STATUS Status;\r | |
37 | CARD_DATA *CardData;\r | |
38 | EFI_SD_HOST_IO_PROTOCOL *SDHostIo;\r | |
39 | \r | |
40 | CardData = CARD_DATA_FROM_THIS(This);\r | |
41 | SDHostIo = CardData->SDHostIo;\r | |
42 | \r | |
43 | if (!ExtendedVerification) {\r | |
44 | Status = SoftwareReset (CardData);\r | |
45 | } else {\r | |
46 | Status = SDHostIo->ResetSDHost (SDHostIo, Reset_DAT_CMD);\r | |
47 | if (EFI_ERROR (Status)) {\r | |
48 | DEBUG((EFI_D_ERROR, "CEATABlockReset: Fail to ResetSDHost\n" ));\r | |
49 | return Status;\r | |
50 | }\r | |
51 | Status = MMCSDCardInit (CardData);\r | |
52 | }\r | |
53 | \r | |
54 | \r | |
55 | return Status;\r | |
56 | \r | |
57 | }\r | |
58 | \r | |
59 | /**\r | |
60 | Implements EFI_BLOCK_IO_PROTOCOL.ReadBlocks() function.\r | |
61 | \r | |
62 | @param This The EFI_BLOCK_IO_PROTOCOL instance.\r | |
63 | @param MediaId The media id that the write request is for.\r | |
64 | @param LBA The starting logical block address to read from on the device.\r | |
65 | The caller is responsible for writing to only legitimate locations.\r | |
66 | @param BufferSize The size of the Buffer in bytes. This must be a multiple of the\r | |
67 | intrinsic block size of the device.\r | |
68 | @param Buffer A pointer to the destination buffer for the data. The caller\r | |
69 | is responsible for either having implicit or explicit ownership\r | |
70 | of the buffer.\r | |
71 | \r | |
72 | @retval EFI_SUCCESS Success\r | |
73 | @retval EFI_DEVICE_ERROR Hardware Error\r | |
74 | @retval EFI_INVALID_PARAMETER Parameter is error\r | |
75 | @retval EFI_NO_MEDIA No media\r | |
76 | @retval EFI_MEDIA_CHANGED Media Change\r | |
77 | @retval EFI_BAD_BUFFER_SIZE Buffer size is bad\r | |
78 | **/\r | |
79 | EFI_STATUS\r | |
80 | EFIAPI\r | |
81 | CEATABlockReadBlocks (\r | |
82 | IN EFI_BLOCK_IO_PROTOCOL *This,\r | |
83 | IN UINT32 MediaId,\r | |
84 | IN EFI_LBA LBA,\r | |
85 | IN UINTN BufferSize,\r | |
86 | OUT VOID *Buffer\r | |
87 | )\r | |
88 | {\r | |
89 | EFI_STATUS Status;\r | |
90 | CARD_DATA *CardData;\r | |
91 | UINT32 TransferSize;\r | |
92 | UINT8 *pBuf;\r | |
93 | UINT32 Index;\r | |
94 | UINT64 Address;\r | |
95 | UINT32 Remainder;\r | |
96 | UINT64 CEATALBA;\r | |
97 | UINT32 BoundarySize;\r | |
98 | \r | |
99 | Status = EFI_SUCCESS;\r | |
100 | CardData = CARD_DATA_FROM_THIS(This);\r | |
101 | pBuf = Buffer;\r | |
102 | Index = 0;\r | |
103 | Address = MultU64x32(LBA, CardData->BlockIoMedia.BlockSize);\r | |
104 | BoundarySize = CardData->SDHostIo->HostCapability.BoundarySize;\r | |
105 | \r | |
106 | if (!Buffer) {\r | |
107 | Status = EFI_INVALID_PARAMETER;\r | |
108 | DEBUG((EFI_D_ERROR, "CEATABlockReadBlocks:Invalid parameter\n" ));\r | |
109 | goto Exit;\r | |
110 | }\r | |
111 | \r | |
112 | if (MediaId != CardData->BlockIoMedia.MediaId) {\r | |
113 | Status = EFI_MEDIA_CHANGED;\r | |
114 | DEBUG((EFI_D_ERROR, "CEATABlockReadBlocks:Media changed\n" ));\r | |
115 | goto Exit;\r | |
116 | }\r | |
117 | \r | |
118 | if ((BufferSize % CardData->BlockIoMedia.BlockSize) != 0) {\r | |
119 | Status = EFI_BAD_BUFFER_SIZE;\r | |
120 | DEBUG((EFI_D_ERROR, "CEATABlockReadBlocks:Bad buffer size\n" ));\r | |
121 | goto Exit;\r | |
122 | }\r | |
123 | \r | |
124 | if (BufferSize == 0) {\r | |
125 | Status = EFI_SUCCESS;\r | |
126 | goto Exit;\r | |
127 | }\r | |
128 | \r | |
129 | if ((Address + BufferSize) > MultU64x32 (CardData->BlockIoMedia.LastBlock + 1, CardData->BlockIoMedia.BlockSize)) {\r | |
130 | Status = EFI_INVALID_PARAMETER;\r | |
131 | DEBUG((EFI_D_ERROR, "CEATABlockReadBlocks:Invalid parameter\n" ));\r | |
132 | goto Exit;\r | |
133 | }\r | |
134 | \r | |
135 | \r | |
136 | do {\r | |
137 | if (BufferSize < BoundarySize) {\r | |
138 | TransferSize = (UINT32)BufferSize;\r | |
139 | } else {\r | |
140 | TransferSize = BoundarySize;\r | |
141 | }\r | |
142 | \r | |
143 | Address += Index * TransferSize;\r | |
144 | CEATALBA = DivU64x32Remainder (Address, DATA_UNIT_SIZE, &Remainder);\r | |
145 | ASSERT(Remainder == 0);\r | |
146 | \r | |
147 | Status = ReadDMAExt (\r | |
148 | CardData,\r | |
149 | CEATALBA,\r | |
150 | pBuf,\r | |
151 | (UINT16)(TransferSize / DATA_UNIT_SIZE)\r | |
152 | );\r | |
153 | if (EFI_ERROR (Status)) {\r | |
154 | DEBUG((EFI_D_ERROR, "Read Failed at 0x%x, Index %d, Size 0x%x\n", Address, Index, TransferSize));\r | |
155 | This->Reset (This, TRUE);\r | |
156 | goto Exit;\r | |
157 | }\r | |
158 | BufferSize -= TransferSize;\r | |
159 | pBuf += TransferSize;\r | |
160 | Index ++;\r | |
161 | } while (BufferSize != 0);\r | |
162 | \r | |
163 | \r | |
164 | Exit:\r | |
165 | return Status;\r | |
166 | }\r | |
167 | \r | |
168 | /**\r | |
169 | Implements EFI_BLOCK_IO_PROTOCOL.WriteBlocks() function.\r | |
170 | \r | |
171 | @param This The EFI_BLOCK_IO_PROTOCOL instance.\r | |
172 | @param MediaId The media id that the write request is for.\r | |
173 | @param LBA The starting logical block address to read from on the device.\r | |
174 | The caller is responsible for writing to only legitimate locations.\r | |
175 | @param BufferSize The size of the Buffer in bytes. This must be a multiple of the\r | |
176 | intrinsic block size of the device.\r | |
177 | @param Buffer A pointer to the destination buffer for the data. The caller\r | |
178 | is responsible for either having implicit or explicit ownership\r | |
179 | of the buffer.\r | |
180 | \r | |
181 | @retval EFI_SUCCESS Success\r | |
182 | @retval EFI_DEVICE_ERROR Hardware Error\r | |
183 | @retval EFI_INVALID_PARAMETER Parameter is error\r | |
184 | @retval EFI_NO_MEDIA No media\r | |
185 | @retval EFI_MEDIA_CHANGED Media Change\r | |
186 | @retval EFI_BAD_BUFFER_SIZE Buffer size is bad\r | |
187 | **/\r | |
188 | EFI_STATUS\r | |
189 | EFIAPI\r | |
190 | CEATABlockWriteBlocks (\r | |
191 | IN EFI_BLOCK_IO_PROTOCOL *This,\r | |
192 | IN UINT32 MediaId,\r | |
193 | IN EFI_LBA LBA,\r | |
194 | IN UINTN BufferSize,\r | |
195 | IN VOID *Buffer\r | |
196 | )\r | |
197 | {\r | |
198 | EFI_STATUS Status;\r | |
199 | CARD_DATA *CardData;\r | |
200 | UINT32 TransferSize;\r | |
201 | UINT8 *pBuf;\r | |
202 | UINT32 Index;\r | |
203 | UINT64 Address;\r | |
204 | UINT32 Remainder;\r | |
205 | UINT64 CEATALBA;\r | |
206 | UINT32 BoundarySize;\r | |
207 | \r | |
208 | \r | |
209 | Status = EFI_SUCCESS;\r | |
210 | CardData = CARD_DATA_FROM_THIS(This);\r | |
211 | pBuf = Buffer;\r | |
212 | Index = 0;\r | |
213 | Address = MultU64x32(LBA, CardData->BlockIoMedia.BlockSize);\r | |
214 | BoundarySize = CardData->SDHostIo->HostCapability.BoundarySize;\r | |
215 | \r | |
216 | \r | |
217 | if (!Buffer) {\r | |
218 | Status = EFI_INVALID_PARAMETER;\r | |
219 | goto Exit;\r | |
220 | }\r | |
221 | \r | |
222 | if (MediaId != CardData->BlockIoMedia.MediaId) {\r | |
223 | Status = EFI_MEDIA_CHANGED;\r | |
224 | goto Exit;\r | |
225 | }\r | |
226 | \r | |
227 | if ((BufferSize % CardData->BlockIoMedia.BlockSize) != 0) {\r | |
228 | Status = EFI_BAD_BUFFER_SIZE;\r | |
229 | goto Exit;\r | |
230 | }\r | |
231 | \r | |
232 | if (BufferSize == 0) {\r | |
233 | Status = EFI_SUCCESS;\r | |
234 | goto Exit;\r | |
235 | }\r | |
236 | \r | |
237 | if (CardData->BlockIoMedia.ReadOnly) {\r | |
238 | Status = EFI_WRITE_PROTECTED;\r | |
239 | goto Exit;\r | |
240 | }\r | |
241 | \r | |
242 | if ((Address + BufferSize) > MultU64x32 (CardData->BlockIoMedia.LastBlock + 1, CardData->BlockIoMedia.BlockSize)) {\r | |
243 | Status = EFI_INVALID_PARAMETER;\r | |
244 | goto Exit;\r | |
245 | }\r | |
246 | \r | |
247 | CardData->NeedFlush = TRUE;\r | |
248 | \r | |
249 | do {\r | |
250 | if (BufferSize < BoundarySize) {\r | |
251 | TransferSize = (UINT32)BufferSize;\r | |
252 | } else {\r | |
253 | TransferSize = BoundarySize;\r | |
254 | }\r | |
255 | \r | |
256 | Address += Index * TransferSize;\r | |
257 | CEATALBA = DivU64x32Remainder (Address, DATA_UNIT_SIZE, &Remainder);\r | |
258 | ASSERT(Remainder == 0);\r | |
259 | \r | |
260 | Status = WriteDMAExt (\r | |
261 | CardData,\r | |
262 | CEATALBA,\r | |
263 | pBuf,\r | |
264 | (UINT16)(TransferSize / DATA_UNIT_SIZE)\r | |
265 | );\r | |
266 | if (EFI_ERROR (Status)) {\r | |
267 | DEBUG((EFI_D_ERROR, "Write Failed at 0x%x, Index %d, Size 0x%x\n", Address, Index, TransferSize));\r | |
268 | This->Reset (This, TRUE);\r | |
269 | goto Exit;\r | |
270 | }\r | |
271 | BufferSize -= TransferSize;\r | |
272 | pBuf += TransferSize;\r | |
273 | Index ++;\r | |
274 | } while (BufferSize != 0);\r | |
275 | \r | |
276 | \r | |
277 | Exit:\r | |
278 | return Status;\r | |
279 | }\r | |
280 | \r | |
281 | /**\r | |
282 | Implements EFI_BLOCK_IO_PROTOCOL.FlushBlocks() function.\r | |
283 | (In this driver, this function just returns EFI_SUCCESS.)\r | |
284 | \r | |
285 | @param This The EFI_BLOCK_IO_PROTOCOL instance.\r | |
286 | \r | |
287 | @retval EFI_SUCCESS\r | |
288 | @retval Others\r | |
289 | **/\r | |
290 | EFI_STATUS\r | |
291 | EFIAPI\r | |
292 | CEATABlockFlushBlocks (\r | |
293 | IN EFI_BLOCK_IO_PROTOCOL *This\r | |
294 | )\r | |
295 | {\r | |
296 | \r | |
297 | EFI_STATUS Status;\r | |
298 | CARD_DATA *CardData;\r | |
299 | \r | |
300 | CardData = CARD_DATA_FROM_THIS(This);\r | |
301 | \r | |
302 | if (CardData->NeedFlush) {\r | |
303 | CardData->NeedFlush = FALSE;\r | |
304 | Status = FlushCache (CardData);\r | |
305 | }\r | |
306 | \r | |
307 | return EFI_SUCCESS;\r | |
308 | }\r | |
309 | \r | |
310 | \r | |
311 | /**\r | |
312 | CEATA card BlockIo init function.\r | |
313 | \r | |
314 | @param CardData Pointer to CARD_DATA.\r | |
315 | \r | |
316 | @retval EFI_SUCCESS\r | |
317 | @retval Others\r | |
318 | **/\r | |
319 | EFI_STATUS\r | |
320 | CEATABlockIoInit (\r | |
321 | IN CARD_DATA *CardData\r | |
322 | )\r | |
323 | /*++\r | |
324 | \r | |
325 | Routine Description:\r | |
326 | CEATA card BlockIo init function\r | |
327 | \r | |
328 | Arguments:\r | |
329 | CardData - Pointer to CARD_DATA\r | |
330 | \r | |
331 | Returns:\r | |
332 | EFI_SUCCESS - Success\r | |
333 | --*/\r | |
334 | {\r | |
335 | EFI_STATUS Status;\r | |
336 | UINT64 MaxSize;\r | |
337 | UINT32 Remainder;\r | |
338 | //\r | |
339 | //BlockIO protocol\r | |
340 | //\r | |
341 | CardData->BlockIo.Revision = EFI_BLOCK_IO_PROTOCOL_REVISION;\r | |
342 | CardData->BlockIo.Media = &(CardData->BlockIoMedia);\r | |
343 | CardData->BlockIo.Reset = CEATABlockReset;\r | |
344 | CardData->BlockIo.ReadBlocks = CEATABlockReadBlocks ;\r | |
345 | CardData->BlockIo.WriteBlocks = CEATABlockWriteBlocks;\r | |
346 | CardData->BlockIo.FlushBlocks = CEATABlockFlushBlocks;\r | |
347 | \r | |
348 | CardData->BlockIoMedia.MediaId = 0;\r | |
349 | CardData->BlockIoMedia.RemovableMedia = FALSE;\r | |
350 | CardData->BlockIoMedia.MediaPresent = TRUE;\r | |
351 | CardData->BlockIoMedia.LogicalPartition = FALSE;\r | |
352 | \r | |
353 | if (CardData->CSDRegister.PERM_WRITE_PROTECT | CardData->CSDRegister.TMP_WRITE_PROTECT) {\r | |
354 | CardData->BlockIoMedia.ReadOnly = TRUE;\r | |
355 | } else {\r | |
356 | CardData->BlockIoMedia.ReadOnly = FALSE;\r | |
357 | }\r | |
358 | \r | |
359 | \r | |
360 | CardData->BlockIoMedia.WriteCaching = FALSE;\r | |
361 | CardData->BlockIoMedia.IoAlign = 1;\r | |
362 | \r | |
363 | Status = IndentifyDevice (CardData);\r | |
364 | if (EFI_ERROR (Status)) {\r | |
365 | goto Exit;\r | |
366 | }\r | |
367 | \r | |
368 | //\r | |
369 | //Some device does not support this feature\r | |
370 | //\r | |
371 | \r | |
372 | if (CardData->IndentifyDeviceData.MaxWritesPerAddress == 0) {\r | |
373 | CardData->BlockIoMedia.ReadOnly = TRUE;\r | |
374 | }\r | |
375 | \r | |
376 | CardData->BlockIoMedia.BlockSize = (1 << CardData->IndentifyDeviceData.Sectorsize);\r | |
377 | ASSERT(CardData->BlockIoMedia.BlockSize >= 12);\r | |
378 | \r | |
379 | \r | |
380 | MaxSize = *(UINT64*)(CardData->IndentifyDeviceData.MaximumLBA);\r | |
381 | MaxSize = MultU64x32 (MaxSize, 512);\r | |
382 | \r | |
383 | Remainder = 0;\r | |
384 | CardData->BlockNumber = DivU64x32Remainder (MaxSize, CardData->BlockIoMedia.BlockSize, &Remainder);\r | |
385 | ASSERT(Remainder == 0);\r | |
386 | \r | |
387 | CardData->BlockIoMedia.LastBlock = (EFI_LBA)(CardData->BlockNumber - 1);\r | |
388 | \r | |
389 | \r | |
390 | Exit:\r | |
391 | return Status;\r | |
392 | \r | |
393 | }\r | |
394 | \r | |
395 | \r | |
396 | \r |