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1bfda055 | 1 | /** @file\r |
2 | *\r | |
6f711615 | 3 | * Copyright (c) 2011-2013, ARM Limited. All rights reserved.\r |
1bfda055 | 4 | *\r |
842b02d8 OM |
5 | * This program and the accompanying materials\r |
6 | * are licensed and made available under the terms and conditions of the BSD License\r | |
7 | * which accompanies this distribution. The full text of the license may be found at\r | |
8 | * http://opensource.org/licenses/bsd-license.php\r | |
9 | *\r | |
10 | * THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | * WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
1bfda055 | 12 | *\r |
13 | **/\r | |
14 | \r | |
1bfda055 | 15 | #include <Library/BaseMemoryLib.h>\r |
16 | #include <Library/TimerLib.h>\r | |
17 | \r | |
18 | #include "Mmc.h"\r | |
19 | \r | |
a1ab9143 | 20 | #define MAX_RETRY_COUNT 1000\r |
21 | #define CMD_RETRY_COUNT 20\r | |
1bfda055 | 22 | \r |
23 | EFI_STATUS\r | |
24 | MmcNotifyState (\r | |
e8e95df4 | 25 | IN MMC_HOST_INSTANCE *MmcHostInstance,\r |
26 | IN MMC_STATE State\r | |
27 | )\r | |
28 | {\r | |
29 | MmcHostInstance->State = State;\r | |
16d88c2d | 30 | return MmcHostInstance->MmcHost->NotifyState (MmcHostInstance->MmcHost, State);\r |
1bfda055 | 31 | }\r |
32 | \r | |
a1ab9143 | 33 | EFI_STATUS\r |
34 | EFIAPI\r | |
842b02d8 | 35 | MmcGetCardStatus (\r |
4ca3c688 | 36 | IN MMC_HOST_INSTANCE *MmcHostInstance\r |
e8e95df4 | 37 | )\r |
38 | {\r | |
39 | EFI_STATUS Status;\r | |
40 | UINT32 Response[4];\r | |
41 | UINTN CmdArg;\r | |
42 | EFI_MMC_HOST_PROTOCOL *MmcHost;\r | |
43 | \r | |
44 | Status = EFI_SUCCESS;\r | |
45 | MmcHost = MmcHostInstance->MmcHost;\r | |
46 | CmdArg = 0;\r | |
47 | \r | |
48 | if (MmcHost == NULL) {\r | |
49 | return EFI_INVALID_PARAMETER;\r | |
50 | }\r | |
842b02d8 | 51 | if (MmcHostInstance->State != MmcHwInitializationState) {\r |
e8e95df4 | 52 | //Get the Status of the card.\r |
53 | CmdArg = MmcHostInstance->CardInfo.RCA << 16;\r | |
16d88c2d | 54 | Status = MmcHost->SendCommand (MmcHost, MMC_CMD13, CmdArg);\r |
6f711615 | 55 | if (EFI_ERROR (Status)) {\r |
56 | DEBUG ((EFI_D_ERROR, "MmcGetCardStatus(MMC_CMD13): Error and Status = %r\n", Status));\r | |
e8e95df4 | 57 | return Status;\r |
a1ab9143 | 58 | }\r |
59 | \r | |
e8e95df4 | 60 | //Read Response\r |
6f711615 | 61 | MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_R1, Response);\r |
62 | PrintResponseR1 (Response[0]);\r | |
e8e95df4 | 63 | }\r |
64 | \r | |
65 | return Status;\r | |
1bfda055 | 66 | }\r |
67 | \r | |
68 | EFI_STATUS\r | |
69 | EFIAPI\r | |
70 | MmcIdentificationMode (\r | |
e8e95df4 | 71 | IN MMC_HOST_INSTANCE *MmcHostInstance\r |
72 | )\r | |
73 | {\r | |
74 | EFI_STATUS Status;\r | |
75 | UINT32 Response[4];\r | |
76 | UINTN Timeout;\r | |
77 | UINTN CmdArg;\r | |
78 | BOOLEAN IsHCS;\r | |
79 | EFI_MMC_HOST_PROTOCOL *MmcHost;\r | |
e8e95df4 | 80 | \r |
81 | MmcHost = MmcHostInstance->MmcHost;\r | |
82 | CmdArg = 0;\r | |
83 | IsHCS = FALSE;\r | |
84 | \r | |
85 | if (MmcHost == NULL) {\r | |
86 | return EFI_INVALID_PARAMETER;\r | |
87 | }\r | |
88 | \r | |
89 | // We can get into this function if we restart the identification mode\r | |
90 | if (MmcHostInstance->State == MmcHwInitializationState) {\r | |
91 | // Initialize the MMC Host HW\r | |
92 | Status = MmcNotifyState (MmcHostInstance, MmcHwInitializationState);\r | |
6f711615 | 93 | if (EFI_ERROR (Status)) {\r |
94 | DEBUG ((EFI_D_ERROR, "MmcIdentificationMode() : Error MmcHwInitializationState\n"));\r | |
e8e95df4 | 95 | return Status;\r |
1bfda055 | 96 | }\r |
fc78c48e | 97 | }\r |
98 | \r | |
99 | Status = MmcHost->SendCommand (MmcHost, MMC_CMD0, 0);\r | |
6f711615 | 100 | if (EFI_ERROR (Status)) {\r |
101 | DEBUG ((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD0): Error\n"));\r | |
fc78c48e | 102 | return Status;\r |
e8e95df4 | 103 | }\r |
104 | \r | |
105 | Status = MmcNotifyState (MmcHostInstance, MmcIdleState);\r | |
6f711615 | 106 | if (EFI_ERROR (Status)) {\r |
107 | DEBUG ((EFI_D_ERROR, "MmcIdentificationMode() : Error MmcIdleState\n"));\r | |
e8e95df4 | 108 | return Status;\r |
109 | }\r | |
110 | \r | |
111 | // Are we using SDIO ?\r | |
16d88c2d | 112 | Status = MmcHost->SendCommand (MmcHost, MMC_CMD5, 0);\r |
e8e95df4 | 113 | if (Status == EFI_SUCCESS) {\r |
6f711615 | 114 | DEBUG ((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD5): Error - SDIO not supported.\n"));\r |
e8e95df4 | 115 | return EFI_UNSUPPORTED;\r |
116 | }\r | |
117 | \r | |
118 | // Check which kind of card we are using. Ver2.00 or later SD Memory Card (PL180 is SD v1.1)\r | |
119 | CmdArg = (0x0UL << 12 | BIT8 | 0xCEUL << 0);\r | |
16d88c2d | 120 | Status = MmcHost->SendCommand (MmcHost, MMC_CMD8, CmdArg);\r |
e8e95df4 | 121 | if (Status == EFI_SUCCESS) {\r |
122 | DEBUG ((EFI_D_ERROR, "Card is SD2.0 => Supports high capacity\n"));\r | |
123 | IsHCS = TRUE;\r | |
6f711615 | 124 | MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_R7, Response);\r |
125 | PrintResponseR1 (Response[0]);\r | |
e8e95df4 | 126 | //check if it is valid response\r |
842b02d8 | 127 | if (Response[0] != CmdArg) {\r |
e8e95df4 | 128 | DEBUG ((EFI_D_ERROR, "The Card is not usable\n"));\r |
129 | return EFI_UNSUPPORTED;\r | |
1bfda055 | 130 | }\r |
e8e95df4 | 131 | } else {\r |
132 | DEBUG ((EFI_D_ERROR, "Not a SD2.0 Card\n"));\r | |
133 | }\r | |
134 | \r | |
492e34a5 | 135 | // We need to wait for the MMC or SD card is ready => (gCardInfo.OCRData.PowerUp == 1)\r |
e8e95df4 | 136 | Timeout = MAX_RETRY_COUNT;\r |
137 | while (Timeout > 0) {\r | |
138 | // SD Card or MMC Card ? CMD55 indicates to the card that the next command is an application specific command\r | |
16d88c2d | 139 | Status = MmcHost->SendCommand (MmcHost, MMC_CMD55, 0);\r |
1bfda055 | 140 | if (Status == EFI_SUCCESS) {\r |
842b02d8 OM |
141 | DEBUG ((EFI_D_INFO, "Card should be SD\n"));\r |
142 | if (IsHCS) {\r | |
143 | MmcHostInstance->CardInfo.CardType = SD_CARD_2;\r | |
144 | } else {\r | |
145 | MmcHostInstance->CardInfo.CardType = SD_CARD;\r | |
146 | }\r | |
1bfda055 | 147 | \r |
842b02d8 OM |
148 | // Note: The first time CmdArg will be zero\r |
149 | CmdArg = ((UINTN *) &(MmcHostInstance->CardInfo.OCRData))[0];\r | |
150 | if (IsHCS) {\r | |
151 | CmdArg |= BIT30;\r | |
152 | }\r | |
153 | Status = MmcHost->SendCommand (MmcHost, MMC_ACMD41, CmdArg);\r | |
154 | if (!EFI_ERROR (Status)) {\r | |
155 | MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_OCR, Response);\r | |
156 | ((UINT32 *) &(MmcHostInstance->CardInfo.OCRData))[0] = Response[0];\r | |
157 | }\r | |
1bfda055 | 158 | } else {\r |
842b02d8 OM |
159 | DEBUG ((EFI_D_INFO, "Card should be MMC\n"));\r |
160 | MmcHostInstance->CardInfo.CardType = MMC_CARD;\r | |
1bfda055 | 161 | \r |
842b02d8 OM |
162 | Status = MmcHost->SendCommand (MmcHost, MMC_CMD1, 0x800000);\r |
163 | if (!EFI_ERROR (Status)) {\r | |
164 | MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_OCR, Response);\r | |
165 | ((UINT32 *) &(MmcHostInstance->CardInfo.OCRData))[0] = Response[0];\r | |
166 | }\r | |
1bfda055 | 167 | }\r |
1bfda055 | 168 | \r |
6f711615 | 169 | if (!EFI_ERROR (Status)) {\r |
492e34a5 | 170 | if (!MmcHostInstance->CardInfo.OCRData.PowerUp) {\r |
842b02d8 OM |
171 | MicroSecondDelay (1);\r |
172 | Timeout--;\r | |
e8e95df4 | 173 | } else {\r |
842b02d8 OM |
174 | if ((MmcHostInstance->CardInfo.CardType == SD_CARD_2) && (MmcHostInstance->CardInfo.OCRData.AccessMode & BIT1)) {\r |
175 | MmcHostInstance->CardInfo.CardType = SD_CARD_2_HIGH;\r | |
176 | DEBUG ((EFI_D_ERROR, "High capacity card.\n"));\r | |
177 | }\r | |
178 | break; // The MMC/SD card is ready. Continue the Identification Mode\r | |
e8e95df4 | 179 | }\r |
1bfda055 | 180 | } else {\r |
6f711615 | 181 | MicroSecondDelay (1);\r |
e8e95df4 | 182 | Timeout--;\r |
1bfda055 | 183 | }\r |
e8e95df4 | 184 | }\r |
185 | \r | |
186 | if (Timeout == 0) {\r | |
6f711615 | 187 | DEBUG ((EFI_D_ERROR, "MmcIdentificationMode(): No Card\n"));\r |
e8e95df4 | 188 | return EFI_NO_MEDIA;\r |
189 | } else {\r | |
6f711615 | 190 | PrintOCR (Response[0]);\r |
e8e95df4 | 191 | }\r |
192 | \r | |
193 | Status = MmcNotifyState (MmcHostInstance, MmcReadyState);\r | |
6f711615 | 194 | if (EFI_ERROR (Status)) {\r |
195 | DEBUG ((EFI_D_ERROR, "MmcIdentificationMode() : Error MmcReadyState\n"));\r | |
e8e95df4 | 196 | return Status;\r |
197 | }\r | |
198 | \r | |
16d88c2d | 199 | Status = MmcHost->SendCommand (MmcHost, MMC_CMD2, 0);\r |
6f711615 | 200 | if (EFI_ERROR (Status)) {\r |
201 | DEBUG ((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD2): Error\n"));\r | |
e8e95df4 | 202 | return Status;\r |
203 | }\r | |
6f711615 | 204 | MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_CID, Response);\r |
842b02d8 | 205 | PrintCID (Response);\r |
e8e95df4 | 206 | \r |
207 | Status = MmcNotifyState (MmcHostInstance, MmcIdentificationState);\r | |
6f711615 | 208 | if (EFI_ERROR (Status)) {\r |
209 | DEBUG ((EFI_D_ERROR, "MmcIdentificationMode() : Error MmcIdentificationState\n"));\r | |
e8e95df4 | 210 | return Status;\r |
211 | }\r | |
212 | \r | |
d8ad4736 | 213 | //\r |
214 | // Note, SD specifications say that "if the command execution causes a state change, it\r | |
215 | // will be visible to the host in the response to the next command"\r | |
216 | // The status returned for this CMD3 will be 2 - identification\r | |
217 | //\r | |
218 | CmdArg = 1;\r | |
16d88c2d | 219 | Status = MmcHost->SendCommand (MmcHost, MMC_CMD3, CmdArg);\r |
6f711615 | 220 | if (EFI_ERROR (Status)) {\r |
221 | DEBUG ((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD3): Error\n"));\r | |
d8ad4736 | 222 | return Status;\r |
e8e95df4 | 223 | }\r |
224 | \r | |
6f711615 | 225 | MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_RCA, Response);\r |
226 | PrintRCA (Response[0]);\r | |
d8ad4736 | 227 | \r |
e8e95df4 | 228 | // For MMC card, RCA is assigned by CMD3 while CMD3 dumps the RCA for SD card\r |
229 | if (MmcHostInstance->CardInfo.CardType != MMC_CARD) {\r | |
230 | MmcHostInstance->CardInfo.RCA = Response[0] >> 16;\r | |
231 | } else {\r | |
232 | MmcHostInstance->CardInfo.RCA = CmdArg;\r | |
233 | }\r | |
234 | \r | |
235 | Status = MmcNotifyState (MmcHostInstance, MmcStandByState);\r | |
6f711615 | 236 | if (EFI_ERROR (Status)) {\r |
237 | DEBUG ((EFI_D_ERROR, "MmcIdentificationMode() : Error MmcStandByState\n"));\r | |
e8e95df4 | 238 | return Status;\r |
239 | }\r | |
240 | \r | |
241 | return EFI_SUCCESS;\r | |
1bfda055 | 242 | }\r |
243 | \r | |
16d88c2d | 244 | EFI_STATUS InitializeMmcDevice (\r |
40842a5e | 245 | IN MMC_HOST_INSTANCE *MmcHostInstance\r |
246 | )\r | |
247 | {\r | |
248 | UINT32 Response[4];\r | |
249 | EFI_STATUS Status;\r | |
250 | UINTN CardSize, NumBlocks, BlockSize, CmdArg;\r | |
251 | EFI_MMC_HOST_PROTOCOL *MmcHost;\r | |
842b02d8 OM |
252 | UINTN BlockCount;\r |
253 | \r | |
254 | BlockCount = 1;\r | |
40842a5e | 255 | MmcHost = MmcHostInstance->MmcHost;\r |
256 | \r | |
257 | MmcIdentificationMode (MmcHostInstance);\r | |
258 | \r | |
259 | //Send a command to get Card specific data\r | |
260 | CmdArg = MmcHostInstance->CardInfo.RCA << 16;\r | |
16d88c2d | 261 | Status = MmcHost->SendCommand (MmcHost, MMC_CMD9, CmdArg);\r |
6f711615 | 262 | if (EFI_ERROR (Status)) {\r |
842b02d8 | 263 | DEBUG((EFI_D_ERROR, "InitializeMmcDevice(MMC_CMD9): Error, Status=%r\n", Status));\r |
40842a5e | 264 | return Status;\r |
265 | }\r | |
266 | //Read Response\r | |
6f711615 | 267 | MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_CSD, Response);\r |
842b02d8 | 268 | PrintCSD (Response);\r |
40842a5e | 269 | \r |
270 | if (MmcHostInstance->CardInfo.CardType == SD_CARD_2_HIGH) {\r | |
6f711615 | 271 | CardSize = HC_MMC_CSD_GET_DEVICESIZE (Response);\r |
40842a5e | 272 | NumBlocks = ((CardSize + 1) * 1024);\r |
842b02d8 | 273 | BlockSize = 1 << MMC_CSD_GET_READBLLEN (Response);\r |
40842a5e | 274 | } else {\r |
6f711615 | 275 | CardSize = MMC_CSD_GET_DEVICESIZE (Response);\r |
276 | NumBlocks = (CardSize + 1) * (1 << (MMC_CSD_GET_DEVICESIZEMULT (Response) + 2));\r | |
842b02d8 | 277 | BlockSize = 1 << MMC_CSD_GET_READBLLEN (Response);\r |
40842a5e | 278 | }\r |
279 | \r | |
280 | //For >=2G card, BlockSize may be 1K, but the transfer size is 512 bytes.\r | |
281 | if (BlockSize > 512) {\r | |
6f711615 | 282 | NumBlocks = MultU64x32 (NumBlocks, BlockSize/512);\r |
40842a5e | 283 | BlockSize = 512;\r |
284 | }\r | |
285 | \r | |
286 | MmcHostInstance->BlockIo.Media->LastBlock = (NumBlocks - 1);\r | |
287 | MmcHostInstance->BlockIo.Media->BlockSize = BlockSize;\r | |
16d88c2d | 288 | MmcHostInstance->BlockIo.Media->ReadOnly = MmcHost->IsReadOnly (MmcHost);\r |
40842a5e | 289 | MmcHostInstance->BlockIo.Media->MediaPresent = TRUE;\r |
290 | MmcHostInstance->BlockIo.Media->MediaId++;\r | |
291 | \r | |
292 | CmdArg = MmcHostInstance->CardInfo.RCA << 16;\r | |
16d88c2d | 293 | Status = MmcHost->SendCommand (MmcHost, MMC_CMD7, CmdArg);\r |
6f711615 | 294 | if (EFI_ERROR (Status)) {\r |
842b02d8 | 295 | DEBUG((EFI_D_ERROR, "InitializeMmcDevice(MMC_CMD7): Error and Status = %r\n", Status));\r |
40842a5e | 296 | return Status;\r |
297 | }\r | |
298 | \r | |
299 | Status = MmcNotifyState (MmcHostInstance, MmcTransferState);\r | |
6f711615 | 300 | if (EFI_ERROR (Status)) {\r |
842b02d8 | 301 | DEBUG((EFI_D_ERROR, "InitializeMmcDevice(): Error MmcTransferState\n"));\r |
40842a5e | 302 | return Status;\r |
303 | }\r | |
304 | \r | |
305 | // Set Block Length\r | |
16d88c2d | 306 | Status = MmcHost->SendCommand (MmcHost, MMC_CMD16, MmcHostInstance->BlockIo.Media->BlockSize);\r |
6f711615 | 307 | if (EFI_ERROR (Status)) {\r |
842b02d8 OM |
308 | DEBUG((EFI_D_ERROR, "InitializeMmcDevice(MMC_CMD16): Error MmcHostInstance->BlockIo.Media->BlockSize: %d and Error = %r\n",\r |
309 | MmcHostInstance->BlockIo.Media->BlockSize, Status));\r | |
40842a5e | 310 | return Status;\r |
311 | }\r | |
312 | \r | |
313 | // Block Count (not used). Could return an error for SD card\r | |
314 | if (MmcHostInstance->CardInfo.CardType == MMC_CARD) {\r | |
16d88c2d | 315 | MmcHost->SendCommand (MmcHost, MMC_CMD23, BlockCount);\r |
40842a5e | 316 | }\r |
317 | \r | |
318 | return EFI_SUCCESS;\r | |
319 | }\r | |
320 | \r | |
1bfda055 | 321 | EFI_STATUS\r |
322 | EFIAPI\r | |
323 | MmcReset (\r | |
324 | IN EFI_BLOCK_IO_PROTOCOL *This,\r | |
325 | IN BOOLEAN ExtendedVerification\r | |
e8e95df4 | 326 | )\r |
327 | {\r | |
3de99375 | 328 | MMC_HOST_INSTANCE *MmcHostInstance;\r |
329 | \r | |
6f711615 | 330 | MmcHostInstance = MMC_HOST_INSTANCE_FROM_BLOCK_IO_THIS (This);\r |
3de99375 | 331 | \r |
332 | if (MmcHostInstance->MmcHost == NULL) {\r | |
333 | // Nothing to do\r | |
334 | return EFI_SUCCESS;\r | |
335 | }\r | |
336 | \r | |
337 | // If a card is not present then clear all media settings\r | |
16d88c2d | 338 | if (!MmcHostInstance->MmcHost->IsCardPresent (MmcHostInstance->MmcHost)) {\r |
3de99375 | 339 | MmcHostInstance->BlockIo.Media->MediaPresent = FALSE;\r |
340 | MmcHostInstance->BlockIo.Media->LastBlock = 0;\r | |
341 | MmcHostInstance->BlockIo.Media->BlockSize = 512; // Should be zero but there is a bug in DiskIo\r | |
342 | MmcHostInstance->BlockIo.Media->ReadOnly = FALSE;\r | |
343 | \r | |
344 | // Indicate that the driver requires initialization\r | |
345 | MmcHostInstance->State = MmcHwInitializationState;\r | |
346 | \r | |
347 | return EFI_SUCCESS;\r | |
348 | }\r | |
349 | \r | |
e8e95df4 | 350 | // Implement me. Either send a CMD0 (could not work for some MMC host) or just turn off/turn\r |
351 | // on power and restart Identification mode\r | |
352 | return EFI_SUCCESS;\r | |
1bfda055 | 353 | }\r |
354 | \r | |
355 | EFI_STATUS\r | |
356 | MmcDetectCard (\r | |
357 | EFI_MMC_HOST_PROTOCOL *MmcHost\r | |
358 | )\r | |
359 | {\r | |
16d88c2d | 360 | if (!MmcHost->IsCardPresent (MmcHost)) {\r |
e8e95df4 | 361 | return EFI_NO_MEDIA;\r |
362 | } else {\r | |
363 | return EFI_SUCCESS;\r | |
364 | }\r | |
1bfda055 | 365 | }\r |
366 | \r | |
9532373b OM |
367 | EFI_STATUS\r |
368 | MmcStopTransmission (\r | |
369 | EFI_MMC_HOST_PROTOCOL *MmcHost\r | |
370 | )\r | |
371 | {\r | |
372 | EFI_STATUS Status;\r | |
373 | UINT32 Response[4];\r | |
374 | // Command 12 - Stop transmission (ends read or write)\r | |
375 | // Normally only needed for streaming transfers or after error.\r | |
376 | Status = MmcHost->SendCommand (MmcHost, MMC_CMD12, 0);\r | |
377 | if (!EFI_ERROR (Status)) {\r | |
378 | MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_R1b, Response);\r | |
379 | }\r | |
380 | return Status;\r | |
381 | }\r | |
382 | \r | |
1bfda055 | 383 | #define MMCI0_BLOCKLEN 512\r |
384 | #define MMCI0_TIMEOUT 10000\r | |
385 | \r | |
e8e95df4 | 386 | EFI_STATUS\r |
387 | MmcIoBlocks (\r | |
1bfda055 | 388 | IN EFI_BLOCK_IO_PROTOCOL *This,\r |
389 | IN UINTN Transfer,\r | |
390 | IN UINT32 MediaId,\r | |
391 | IN EFI_LBA Lba,\r | |
392 | IN UINTN BufferSize,\r | |
393 | OUT VOID *Buffer\r | |
e8e95df4 | 394 | )\r |
395 | {\r | |
396 | UINT32 Response[4];\r | |
397 | EFI_STATUS Status;\r | |
40842a5e | 398 | UINTN CmdArg;\r |
969ece79 | 399 | INTN Timeout;\r |
e8e95df4 | 400 | UINTN Cmd;\r |
401 | MMC_HOST_INSTANCE *MmcHostInstance;\r | |
402 | EFI_MMC_HOST_PROTOCOL *MmcHost;\r | |
403 | UINTN BytesRemainingToBeTransfered;\r | |
842b02d8 | 404 | UINTN BlockCount;\r |
e8e95df4 | 405 | \r |
842b02d8 | 406 | BlockCount = 1;\r |
6f711615 | 407 | MmcHostInstance = MMC_HOST_INSTANCE_FROM_BLOCK_IO_THIS (This);\r |
842b02d8 | 408 | ASSERT (MmcHostInstance != NULL);\r |
e8e95df4 | 409 | MmcHost = MmcHostInstance->MmcHost;\r |
6f711615 | 410 | ASSERT (MmcHost);\r |
e8e95df4 | 411 | \r |
5ab765a7 | 412 | if (This->Media->MediaId != MediaId) {\r |
413 | return EFI_MEDIA_CHANGED;\r | |
414 | }\r | |
415 | \r | |
842b02d8 | 416 | if ((MmcHost == NULL) || (Buffer == NULL)) {\r |
e8e95df4 | 417 | return EFI_INVALID_PARAMETER;\r |
418 | }\r | |
419 | \r | |
420 | // Check if a Card is Present\r | |
3de99375 | 421 | if (!MmcHostInstance->BlockIo.Media->MediaPresent) {\r |
e8e95df4 | 422 | return EFI_NO_MEDIA;\r |
423 | }\r | |
424 | \r | |
969ece79 | 425 | // All blocks must be within the device\r |
842b02d8 | 426 | if ((Lba + (BufferSize / This->Media->BlockSize)) > (This->Media->LastBlock + 1)) {\r |
969ece79 | 427 | return EFI_INVALID_PARAMETER;\r |
e8e95df4 | 428 | }\r |
429 | \r | |
842b02d8 | 430 | if ((Transfer == MMC_IOBLOCKS_WRITE) && (This->Media->ReadOnly == TRUE)) {\r |
5ab765a7 | 431 | return EFI_WRITE_PROTECTED;\r |
969ece79 | 432 | }\r |
433 | \r | |
5ab765a7 | 434 | // Reading 0 Byte is valid\r |
435 | if (BufferSize == 0) {\r | |
436 | return EFI_SUCCESS;\r | |
969ece79 | 437 | }\r |
438 | \r | |
5ab765a7 | 439 | // The buffer size must be an exact multiple of the block size\r |
440 | if ((BufferSize % This->Media->BlockSize) != 0) {\r | |
441 | return EFI_BAD_BUFFER_SIZE;\r | |
442 | }\r | |
443 | \r | |
444 | // Check the alignment\r | |
445 | if ((This->Media->IoAlign > 2) && (((UINTN)Buffer & (This->Media->IoAlign - 1)) != 0)) {\r | |
446 | return EFI_INVALID_PARAMETER;\r | |
e8e95df4 | 447 | }\r |
448 | \r | |
449 | BytesRemainingToBeTransfered = BufferSize;\r | |
450 | while (BytesRemainingToBeTransfered > 0) {\r | |
451 | \r | |
452 | // Check if the Card is in Ready status\r | |
453 | CmdArg = MmcHostInstance->CardInfo.RCA << 16;\r | |
454 | Response[0] = 0;\r | |
455 | Timeout = 20;\r | |
260675b0 | 456 | while( (!(Response[0] & MMC_R0_READY_FOR_DATA))\r |
6f711615 | 457 | && (MMC_R0_CURRENTSTATE (Response) != MMC_R0_STATE_TRAN)\r |
260675b0 | 458 | && Timeout--) {\r |
16d88c2d | 459 | Status = MmcHost->SendCommand (MmcHost, MMC_CMD13, CmdArg);\r |
6f711615 | 460 | if (!EFI_ERROR (Status)) {\r |
461 | MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_R1, Response);\r | |
e8e95df4 | 462 | }\r |
1bfda055 | 463 | }\r |
464 | \r | |
e8e95df4 | 465 | if (0 == Timeout) {\r |
6f711615 | 466 | DEBUG ((EFI_D_ERROR, "The Card is busy\n"));\r |
e8e95df4 | 467 | return EFI_NOT_READY;\r |
b9d5fe03 | 468 | }\r |
469 | \r | |
e8e95df4 | 470 | //Set command argument based on the card access mode (Byte mode or Block mode)\r |
471 | if (MmcHostInstance->CardInfo.OCRData.AccessMode & BIT1) {\r | |
472 | CmdArg = Lba;\r | |
473 | } else {\r | |
474 | CmdArg = Lba * This->Media->BlockSize;\r | |
475 | }\r | |
1bfda055 | 476 | \r |
e8e95df4 | 477 | if (Transfer == MMC_IOBLOCKS_READ) {\r |
e8e95df4 | 478 | // Read a single block\r |
479 | Cmd = MMC_CMD17;\r | |
e8e95df4 | 480 | } else {\r |
e8e95df4 | 481 | // Write a single block\r |
482 | Cmd = MMC_CMD24;\r | |
e8e95df4 | 483 | }\r |
16d88c2d | 484 | Status = MmcHost->SendCommand (MmcHost, Cmd, CmdArg);\r |
6f711615 | 485 | if (EFI_ERROR (Status)) {\r |
486 | DEBUG ((EFI_D_ERROR, "MmcIoBlocks(MMC_CMD%d): Error %r\n", Cmd, Status));\r | |
e8e95df4 | 487 | return Status;\r |
488 | }\r | |
1bfda055 | 489 | \r |
e8e95df4 | 490 | if (Transfer == MMC_IOBLOCKS_READ) {\r |
e8e95df4 | 491 | // Read one block of Data\r |
6f711615 | 492 | Status = MmcHost->ReadBlockData (MmcHost, Lba, This->Media->BlockSize, Buffer);\r |
493 | if (EFI_ERROR (Status)) {\r | |
494 | DEBUG ((EFI_D_BLKIO, "MmcIoBlocks(): Error Read Block Data and Status = %r\n", Status));\r | |
9532373b | 495 | MmcStopTransmission (MmcHost);\r |
e8e95df4 | 496 | return Status;\r |
497 | }\r | |
e8e95df4 | 498 | Status = MmcNotifyState (MmcHostInstance, MmcProgrammingState);\r |
6f711615 | 499 | if (EFI_ERROR (Status)) {\r |
500 | DEBUG ((EFI_D_ERROR, "MmcIoBlocks() : Error MmcProgrammingState\n"));\r | |
e8e95df4 | 501 | return Status;\r |
502 | }\r | |
503 | } else {\r | |
e8e95df4 | 504 | // Write one block of Data\r |
6f711615 | 505 | Status = MmcHost->WriteBlockData (MmcHost, Lba, This->Media->BlockSize, Buffer);\r |
506 | if (EFI_ERROR (Status)) {\r | |
507 | DEBUG ((EFI_D_BLKIO, "MmcIoBlocks(): Error Write Block Data and Status = %r\n", Status));\r | |
9532373b | 508 | MmcStopTransmission (MmcHost);\r |
e8e95df4 | 509 | return Status;\r |
510 | }\r | |
e8e95df4 | 511 | }\r |
1bfda055 | 512 | \r |
e8e95df4 | 513 | // Command 13 - Read status and wait for programming to complete (return to tran)\r |
514 | Timeout = MMCI0_TIMEOUT;\r | |
515 | CmdArg = MmcHostInstance->CardInfo.RCA << 16;\r | |
516 | Response[0] = 0;\r | |
260675b0 | 517 | while( (!(Response[0] & MMC_R0_READY_FOR_DATA))\r |
6f711615 | 518 | && (MMC_R0_CURRENTSTATE (Response) != MMC_R0_STATE_TRAN)\r |
260675b0 | 519 | && Timeout--) {\r |
16d88c2d | 520 | Status = MmcHost->SendCommand (MmcHost, MMC_CMD13, CmdArg);\r |
6f711615 | 521 | if (!EFI_ERROR (Status)) {\r |
699e34ad | 522 | MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_R1, Response);\r |
523 | if ((Response[0] & MMC_R0_READY_FOR_DATA)) {\r | |
524 | break; // Prevents delay once finished\r | |
525 | }\r | |
e8e95df4 | 526 | }\r |
6f711615 | 527 | NanoSecondDelay (100);\r |
e8e95df4 | 528 | }\r |
1bfda055 | 529 | \r |
e8e95df4 | 530 | Status = MmcNotifyState (MmcHostInstance, MmcTransferState);\r |
6f711615 | 531 | if (EFI_ERROR (Status)) {\r |
532 | DEBUG ((EFI_D_ERROR, "MmcIoBlocks() : Error MmcTransferState\n"));\r | |
e8e95df4 | 533 | return Status;\r |
1bfda055 | 534 | }\r |
535 | \r | |
e8e95df4 | 536 | BytesRemainingToBeTransfered -= This->Media->BlockSize;\r |
537 | Lba += BlockCount;\r | |
538 | Buffer = (UINT8 *)Buffer + This->Media->BlockSize;\r | |
539 | }\r | |
540 | \r | |
541 | return EFI_SUCCESS;\r | |
1bfda055 | 542 | }\r |
543 | \r | |
544 | EFI_STATUS\r | |
545 | EFIAPI\r | |
546 | MmcReadBlocks (\r | |
547 | IN EFI_BLOCK_IO_PROTOCOL *This,\r | |
548 | IN UINT32 MediaId,\r | |
549 | IN EFI_LBA Lba,\r | |
550 | IN UINTN BufferSize,\r | |
551 | OUT VOID *Buffer\r | |
e8e95df4 | 552 | )\r |
553 | {\r | |
554 | return MmcIoBlocks (This, MMC_IOBLOCKS_READ, MediaId, Lba, BufferSize, Buffer);\r | |
1bfda055 | 555 | }\r |
556 | \r | |
557 | EFI_STATUS\r | |
558 | EFIAPI\r | |
559 | MmcWriteBlocks (\r | |
560 | IN EFI_BLOCK_IO_PROTOCOL *This,\r | |
561 | IN UINT32 MediaId,\r | |
562 | IN EFI_LBA Lba,\r | |
563 | IN UINTN BufferSize,\r | |
564 | IN VOID *Buffer\r | |
e8e95df4 | 565 | )\r |
566 | {\r | |
567 | return MmcIoBlocks (This, MMC_IOBLOCKS_WRITE, MediaId, Lba, BufferSize, Buffer);\r | |
1bfda055 | 568 | }\r |
569 | \r | |
570 | EFI_STATUS\r | |
571 | EFIAPI\r | |
572 | MmcFlushBlocks (\r | |
573 | IN EFI_BLOCK_IO_PROTOCOL *This\r | |
e8e95df4 | 574 | )\r |
575 | {\r | |
576 | return EFI_SUCCESS;\r | |
1bfda055 | 577 | }\r |