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1 | /** @file\r | |
2 | *\r | |
3 | * Copyright (c) 2011, ARM Limited. All rights reserved.\r | |
4 | * \r | |
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 | |
12 | *\r | |
13 | **/\r | |
14 | \r | |
15 | #include <Protocol/MmcHost.h>\r | |
16 | #include <Library/DebugLib.h>\r | |
17 | #include <Library/BaseMemoryLib.h>\r | |
18 | #include <Library/TimerLib.h>\r | |
19 | \r | |
20 | #include "Mmc.h"\r | |
21 | \r | |
22 | // Untested ...\r | |
23 | //#define USE_STREAM\r | |
24 | \r | |
25 | #define MAX_RETRY_COUNT 1000\r | |
26 | #define CMD_RETRY_COUNT 20\r | |
27 | \r | |
28 | EFI_STATUS\r | |
29 | MmcNotifyState (\r | |
30 | IN MMC_HOST_INSTANCE *MmcHostInstance,\r | |
31 | IN MMC_STATE State\r | |
32 | )\r | |
33 | {\r | |
34 | MmcHostInstance->State = State;\r | |
35 | return MmcHostInstance->MmcHost->NotifyState(State);\r | |
36 | }\r | |
37 | \r | |
38 | VOID\r | |
39 | PrintOCR (\r | |
40 | IN UINT32 Ocr\r | |
41 | )\r | |
42 | {\r | |
43 | UINTN minv, maxv, volts;\r | |
44 | UINTN loop;\r | |
45 | \r | |
46 | minv = 36; // 3.6\r | |
47 | maxv = 20; // 2.0\r | |
48 | volts = 20; // 2.0\r | |
49 | \r | |
50 | // The MMC register bits [23:8] indicate the working range of the card\r | |
51 | for (loop = 8; loop < 24; loop++) {\r | |
52 | if (Ocr & (1 << loop)) {\r | |
53 | if (minv > volts) minv = volts;\r | |
54 | if (maxv < volts) maxv = volts + 1;\r | |
55 | }\r | |
56 | volts = volts + 1;\r | |
57 | }\r | |
58 | \r | |
59 | DEBUG((EFI_D_ERROR, "- PrintOCR Ocr (0x%X)\n",Ocr));\r | |
60 | DEBUG((EFI_D_ERROR, "\t- Card operating voltage: %d.%d to %d.%d\n", minv/10, minv % 10, maxv/10, maxv % 10));\r | |
61 | if (((Ocr >> 29) & 3) == 0) {\r | |
62 | DEBUG((EFI_D_ERROR, "\t- AccessMode: Byte Mode\n"));\r | |
63 | } else {\r | |
64 | DEBUG((EFI_D_ERROR, "\t- AccessMode: Block Mode (0x%X)\n",((Ocr >> 29) & 3)));\r | |
65 | }\r | |
66 | \r | |
67 | if (Ocr & MMC_OCR_POWERUP) {\r | |
68 | DEBUG((EFI_D_ERROR, "\t- PowerUp\n"));\r | |
69 | } else {\r | |
70 | DEBUG((EFI_D_ERROR, "\t- Voltage Not Supported\n"));\r | |
71 | }\r | |
72 | }\r | |
73 | \r | |
74 | VOID PrintCID (\r | |
75 | IN UINT32* Cid\r | |
76 | )\r | |
77 | {\r | |
78 | DEBUG((EFI_D_ERROR, "- PrintCID\n"));\r | |
79 | DEBUG((EFI_D_ERROR, "\t- Manufacturing date: %d/%d\n",(Cid[0] >> 8) & 0xF,(Cid[0] >> 12) & 0xFF));\r | |
80 | DEBUG((EFI_D_ERROR, "\t- Product serial number: 0x%X%X\n",Cid[1] & 0xFFFFFF,(Cid[0] >> 24) & 0xFF));\r | |
81 | DEBUG((EFI_D_ERROR, "\t- Product revision: %d\n",Cid[1] >> 24));\r | |
82 | //DEBUG((EFI_D_ERROR, "\t- Product name: %s\n",(char*)(Cid + 2)));\r | |
83 | DEBUG((EFI_D_ERROR, "\t- OEM ID: %c%c\n",(Cid[3] >> 8) & 0xFF,(Cid[3] >> 16) & 0xFF));\r | |
84 | }\r | |
85 | \r | |
86 | VOID\r | |
87 | PrintCSD (\r | |
88 | IN UINT32* Csd\r | |
89 | )\r | |
90 | {\r | |
91 | UINTN Value;\r | |
92 | #if !defined(MDEPKG_NDEBUG)\r | |
93 | CONST CHAR8* str_unit[] = { "100kbit/s","1Mbit/s","10Mbit/s","100MBit/s","Unkbown","Unkbown","Unkbown","Unkbown" };\r | |
94 | CONST CHAR8* str_value[] = { "1.0","1.2","1.3","1.5","2.0","2.5","3.0","3.5","4.0","4.5","5.0","Unknown","Unknown","Unknown","Unknown" };\r | |
95 | #endif\r | |
96 | \r | |
97 | if (((Csd[2] >> 30) & 0x3) == 0) {\r | |
98 | DEBUG((EFI_D_ERROR, "- PrintCSD Version 1.01-1.10/Version 2.00/Standard Capacity\n"));\r | |
99 | } else if (((Csd[2] >> 30) & 0x3) == 1) {\r | |
100 | DEBUG((EFI_D_ERROR, "- PrintCSD Version 2.00/High Capacity\n"));\r | |
101 | } else {\r | |
102 | DEBUG((EFI_D_ERROR, "- PrintCSD Version Higher than v3.3\n"));\r | |
103 | }\r | |
104 | \r | |
105 | DEBUG((EFI_D_ERROR, "\t- Supported card command class: 0x%X\n",MMC_CSD_GET_CCC(Csd)));\r | |
106 | DEBUG((EFI_D_ERROR, "\t- Speed: %a %a\n",str_value[(MMC_CSD_GET_TRANSPEED(Csd) >> 3) & 0xF],str_unit[MMC_CSD_GET_TRANSPEED(Csd) & 7]));\r | |
107 | DEBUG((EFI_D_ERROR, "\t- Maximum Read Data Block: %d\n",2 << (MMC_CSD_GET_READBLLEN(Csd)-1)));\r | |
108 | DEBUG((EFI_D_ERROR, "\t- Maximum Write Data Block: %d\n",2 << (MMC_CSD_GET_WRITEBLLEN(Csd)-1)));\r | |
109 | \r | |
110 | if (!MMC_CSD_GET_FILEFORMATGRP(Csd)) {\r | |
111 | Value = MMC_CSD_GET_FILEFORMAT(Csd);\r | |
112 | if (Value == 0) DEBUG((EFI_D_ERROR, "\t- Format(0): Hard disk-like file system with partition table\n"));\r | |
113 | else if (Value == 1) DEBUG((EFI_D_ERROR, "\t- Format(1): DOS FAT (floppy-like) with boot sector only (no partition table)\n"));\r | |
114 | else if (Value == 2) DEBUG((EFI_D_ERROR, "\t- Format(2): Universal File Format\n"));\r | |
115 | else DEBUG((EFI_D_ERROR, "\t- Format(3): Others/Unknown\n"));\r | |
116 | } else {\r | |
117 | DEBUG((EFI_D_ERROR, "\t- Format: Reserved\n"));\r | |
118 | }\r | |
119 | }\r | |
120 | \r | |
121 | VOID\r | |
122 | PrintRCA (\r | |
123 | IN UINT32 Rca\r | |
124 | )\r | |
125 | {\r | |
126 | DEBUG((EFI_D_ERROR, "- PrintRCA: 0x%X\n",Rca));\r | |
127 | DEBUG((EFI_D_ERROR, "\t- Status: 0x%X\n",Rca & 0xFFFF));\r | |
128 | DEBUG((EFI_D_ERROR, "\t- RCA: 0x%X\n",(Rca >> 16) & 0xFFFF));\r | |
129 | }\r | |
130 | \r | |
131 | VOID\r | |
132 | PrintResponseR1 (\r | |
133 | IN UINT32 Response\r | |
134 | )\r | |
135 | {\r | |
136 | DEBUG((EFI_D_INFO, "Response: 0x%X\n",Response));\r | |
137 | if (Response & (1 << 8)) DEBUG((EFI_D_INFO, "\t- READY_FOR_DATA\n"));\r | |
138 | \r | |
139 | if (((Response >> 9) & 0xF) == 0) DEBUG((EFI_D_INFO, "\t- State: Idle\n"));\r | |
140 | else if (((Response >> 9) & 0xF) == 1) DEBUG((EFI_D_INFO, "\t- State: Ready\n"));\r | |
141 | else if (((Response >> 9) & 0xF) == 2) DEBUG((EFI_D_INFO, "\t- State: Ident\n"));\r | |
142 | else if (((Response >> 9) & 0xF) == 3) DEBUG((EFI_D_INFO, "\t- State: StandBy\n"));\r | |
143 | else if (((Response >> 9) & 0xF) == 4) DEBUG((EFI_D_INFO, "\t- State: Tran\n"));\r | |
144 | else if (((Response >> 9) & 0xF) == 5) DEBUG((EFI_D_INFO, "\t- State: Data\n"));\r | |
145 | else if (((Response >> 9) & 0xF) == 6) DEBUG((EFI_D_INFO, "\t- State: Rcv\n"));\r | |
146 | else if (((Response >> 9) & 0xF) == 7) DEBUG((EFI_D_INFO, "\t- State: Prg\n"));\r | |
147 | else if (((Response >> 9) & 0xF) == 8) DEBUG((EFI_D_INFO, "\t- State: Dis\n"));\r | |
148 | else DEBUG((EFI_D_INFO, "\t- State: Reserved\n"));\r | |
149 | }\r | |
150 | \r | |
151 | EFI_STATUS\r | |
152 | EFIAPI\r | |
153 | MmcGetCardStatus(\r | |
154 | IN MMC_HOST_INSTANCE *MmcHostInstance\r | |
155 | )\r | |
156 | {\r | |
157 | EFI_STATUS Status;\r | |
158 | UINT32 Response[4];\r | |
159 | UINTN CmdArg;\r | |
160 | EFI_MMC_HOST_PROTOCOL *MmcHost;\r | |
161 | \r | |
162 | Status = EFI_SUCCESS;\r | |
163 | MmcHost = MmcHostInstance->MmcHost;\r | |
164 | CmdArg = 0;\r | |
165 | \r | |
166 | if (MmcHost == NULL) {\r | |
167 | return EFI_INVALID_PARAMETER;\r | |
168 | }\r | |
169 | if(MmcHostInstance->State != MmcHwInitializationState){\r | |
170 | //Get the Status of the card.\r | |
171 | CmdArg = MmcHostInstance->CardInfo.RCA << 16;\r | |
172 | Status = MmcHost->SendCommand(MMC_CMD13, CmdArg);\r | |
173 | if (EFI_ERROR(Status)) {\r | |
174 | DEBUG((EFI_D_ERROR, "MmcGetCardStatus(MMC_CMD13): Error and Status = %r\n", Status));\r | |
175 | ASSERT(0);\r | |
176 | return Status;\r | |
177 | }\r | |
178 | \r | |
179 | //Read Response\r | |
180 | MmcHost->ReceiveResponse(MMC_RESPONSE_TYPE_R1,Response);\r | |
181 | PrintResponseR1(Response[0]);\r | |
182 | }\r | |
183 | \r | |
184 | return Status;\r | |
185 | }\r | |
186 | \r | |
187 | EFI_STATUS\r | |
188 | EFIAPI\r | |
189 | MmcIdentificationMode (\r | |
190 | IN MMC_HOST_INSTANCE *MmcHostInstance\r | |
191 | )\r | |
192 | {\r | |
193 | EFI_STATUS Status;\r | |
194 | UINT32 Response[4];\r | |
195 | UINTN Timeout;\r | |
196 | UINTN CmdArg;\r | |
197 | BOOLEAN IsHCS;\r | |
198 | EFI_MMC_HOST_PROTOCOL *MmcHost;\r | |
199 | UINTN CmdRetryCnt;\r | |
200 | \r | |
201 | MmcHost = MmcHostInstance->MmcHost;\r | |
202 | CmdArg = 0;\r | |
203 | IsHCS = FALSE;\r | |
204 | \r | |
205 | if (MmcHost == NULL) {\r | |
206 | return EFI_INVALID_PARAMETER;\r | |
207 | }\r | |
208 | \r | |
209 | // We can get into this function if we restart the identification mode\r | |
210 | if (MmcHostInstance->State == MmcHwInitializationState) {\r | |
211 | // Initialize the MMC Host HW\r | |
212 | Status = MmcNotifyState (MmcHostInstance, MmcHwInitializationState);\r | |
213 | if (EFI_ERROR(Status)) {\r | |
214 | DEBUG((EFI_D_ERROR, "MmcIdentificationMode() : Error MmcHwInitializationState\n"));\r | |
215 | return Status;\r | |
216 | }\r | |
217 | } else {\r | |
218 | //Note: Could even be used in all cases. But it looks this command could put the state machine into inactive for some cards\r | |
219 | Status = MmcHost->SendCommand(MMC_CMD0, 0);\r | |
220 | if (EFI_ERROR(Status)) {\r | |
221 | DEBUG((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD0): Error\n"));\r | |
222 | return Status;\r | |
223 | }\r | |
224 | }\r | |
225 | \r | |
226 | Status = MmcNotifyState (MmcHostInstance, MmcIdleState);\r | |
227 | if (EFI_ERROR(Status)) {\r | |
228 | DEBUG((EFI_D_ERROR, "MmcIdentificationMode() : Error MmcIdleState\n"));\r | |
229 | return Status;\r | |
230 | }\r | |
231 | \r | |
232 | // Are we using SDIO ?\r | |
233 | Status = MmcHost->SendCommand(MMC_CMD5, 0);\r | |
234 | if (Status == EFI_SUCCESS) {\r | |
235 | DEBUG((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD5): Error - SDIO not supported.\n"));\r | |
236 | return EFI_UNSUPPORTED;\r | |
237 | }\r | |
238 | \r | |
239 | // Check which kind of card we are using. Ver2.00 or later SD Memory Card (PL180 is SD v1.1)\r | |
240 | CmdArg = (0x0UL << 12 | BIT8 | 0xCEUL << 0);\r | |
241 | Status = MmcHost->SendCommand(MMC_CMD8, CmdArg);\r | |
242 | if (Status == EFI_SUCCESS) {\r | |
243 | DEBUG ((EFI_D_ERROR, "Card is SD2.0 => Supports high capacity\n"));\r | |
244 | IsHCS = TRUE;\r | |
245 | MmcHost->ReceiveResponse(MMC_RESPONSE_TYPE_R7,Response);\r | |
246 | PrintResponseR1(Response[0]);\r | |
247 | //check if it is valid response\r | |
248 | if(Response[0] != CmdArg){\r | |
249 | DEBUG ((EFI_D_ERROR, "The Card is not usable\n"));\r | |
250 | return EFI_UNSUPPORTED;\r | |
251 | }\r | |
252 | } else {\r | |
253 | DEBUG ((EFI_D_ERROR, "Not a SD2.0 Card\n"));\r | |
254 | }\r | |
255 | \r | |
256 | // We need to wait for the MMC or SD card is ready => (gCardInfo.OCRData.Busy == 1)\r | |
257 | Timeout = MAX_RETRY_COUNT;\r | |
258 | while (Timeout > 0) {\r | |
259 | // SD Card or MMC Card ? CMD55 indicates to the card that the next command is an application specific command\r | |
260 | Status = MmcHost->SendCommand(MMC_CMD55, 0);\r | |
261 | if (Status == EFI_SUCCESS) {\r | |
262 | DEBUG ((EFI_D_INFO, "Card should be SD\n"));\r | |
263 | if (IsHCS) {\r | |
264 | MmcHostInstance->CardInfo.CardType = SD_CARD_2;\r | |
265 | } else {\r | |
266 | MmcHostInstance->CardInfo.CardType = SD_CARD;\r | |
267 | }\r | |
268 | \r | |
269 | // Note: The first time CmdArg will be zero\r | |
270 | CmdArg = ((UINTN *) &(MmcHostInstance->CardInfo.OCRData))[0];\r | |
271 | if (IsHCS) {\r | |
272 | CmdArg |= BIT30;\r | |
273 | }\r | |
274 | Status = MmcHost->SendCommand(MMC_ACMD41, CmdArg);\r | |
275 | if (!EFI_ERROR(Status)) {\r | |
276 | MmcHost->ReceiveResponse(MMC_RESPONSE_TYPE_OCR,Response);\r | |
277 | ((UINT32 *) &(MmcHostInstance->CardInfo.OCRData))[0] = Response[0];\r | |
278 | }\r | |
279 | } else {\r | |
280 | DEBUG ((EFI_D_INFO, "Card should be MMC\n"));\r | |
281 | MmcHostInstance->CardInfo.CardType = MMC_CARD;\r | |
282 | \r | |
283 | Status = MmcHost->SendCommand(MMC_CMD1, 0x800000);\r | |
284 | if (!EFI_ERROR(Status)) {\r | |
285 | MmcHost->ReceiveResponse(MMC_RESPONSE_TYPE_OCR,Response);\r | |
286 | ((UINT32 *) &(MmcHostInstance->CardInfo.OCRData))[0] = Response[0];\r | |
287 | }\r | |
288 | }\r | |
289 | \r | |
290 | if (!EFI_ERROR(Status)) {\r | |
291 | if (MmcHostInstance->CardInfo.OCRData.Busy == 0) {\r | |
292 | MicroSecondDelay(1);\r | |
293 | Timeout--;\r | |
294 | } else {\r | |
295 | if ((MmcHostInstance->CardInfo.CardType == SD_CARD_2) && (MmcHostInstance->CardInfo.OCRData.AccessMode & BIT1)) {\r | |
296 | MmcHostInstance->CardInfo.CardType = SD_CARD_2_HIGH;\r | |
297 | DEBUG ((EFI_D_ERROR, "High capacity card.\n"));\r | |
298 | }\r | |
299 | break; // The MMC/SD card is ready. Continue the Identification Mode\r | |
300 | }\r | |
301 | } else {\r | |
302 | MicroSecondDelay(1);\r | |
303 | Timeout--;\r | |
304 | }\r | |
305 | }\r | |
306 | \r | |
307 | if (Timeout == 0) {\r | |
308 | DEBUG((EFI_D_ERROR, "MmcIdentificationMode(): No Card\n"));\r | |
309 | ASSERT(0);\r | |
310 | return EFI_NO_MEDIA;\r | |
311 | } else {\r | |
312 | PrintOCR(Response[0]);\r | |
313 | }\r | |
314 | \r | |
315 | Status = MmcNotifyState (MmcHostInstance, MmcReadyState);\r | |
316 | if (EFI_ERROR(Status)) {\r | |
317 | DEBUG((EFI_D_ERROR, "MmcIdentificationMode() : Error MmcReadyState\n"));\r | |
318 | return Status;\r | |
319 | }\r | |
320 | \r | |
321 | Status = MmcHost->SendCommand(MMC_CMD2, 0);\r | |
322 | if (EFI_ERROR(Status)) {\r | |
323 | DEBUG((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD2): Error\n"));\r | |
324 | ASSERT(0);\r | |
325 | return Status;\r | |
326 | }\r | |
327 | MmcHost->ReceiveResponse(MMC_RESPONSE_TYPE_CID,Response);\r | |
328 | PrintCID(Response);\r | |
329 | \r | |
330 | Status = MmcNotifyState (MmcHostInstance, MmcIdentificationState);\r | |
331 | if (EFI_ERROR(Status)) {\r | |
332 | DEBUG((EFI_D_ERROR, "MmcIdentificationMode() : Error MmcIdentificationState\n"));\r | |
333 | return Status;\r | |
334 | }\r | |
335 | \r | |
336 | CmdArg = 0;\r | |
337 | CmdRetryCnt = CMD_RETRY_COUNT;\r | |
338 | //Keep sending CMD 3 until card enters to Standby mode and Card status is ready\r | |
339 | while((MMC_R0_CURRENTSTATE(Response) != MMC_R0_STATE_STDBY) && CmdRetryCnt--) {\r | |
340 | Status = MmcHost->SendCommand(MMC_CMD3, CmdArg);\r | |
341 | if (EFI_ERROR(Status)) {\r | |
342 | DEBUG((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD3): Error\n"));\r | |
343 | return Status;\r | |
344 | }\r | |
345 | MmcHost->ReceiveResponse(MMC_RESPONSE_TYPE_RCA,Response);\r | |
346 | PrintRCA(Response[0]);\r | |
347 | }\r | |
348 | \r | |
349 | // For MMC card, RCA is assigned by CMD3 while CMD3 dumps the RCA for SD card\r | |
350 | if (MmcHostInstance->CardInfo.CardType != MMC_CARD) {\r | |
351 | MmcHostInstance->CardInfo.RCA = Response[0] >> 16;\r | |
352 | } else {\r | |
353 | MmcHostInstance->CardInfo.RCA = CmdArg;\r | |
354 | }\r | |
355 | \r | |
356 | Status = MmcNotifyState (MmcHostInstance, MmcStandByState);\r | |
357 | if (EFI_ERROR(Status)) {\r | |
358 | DEBUG((EFI_D_ERROR, "MmcIdentificationMode() : Error MmcStandByState\n"));\r | |
359 | return Status;\r | |
360 | }\r | |
361 | \r | |
362 | return EFI_SUCCESS;\r | |
363 | }\r | |
364 | \r | |
365 | EFI_STATUS\r | |
366 | EFIAPI\r | |
367 | MmcReset (\r | |
368 | IN EFI_BLOCK_IO_PROTOCOL *This,\r | |
369 | IN BOOLEAN ExtendedVerification\r | |
370 | )\r | |
371 | {\r | |
372 | // Implement me. Either send a CMD0 (could not work for some MMC host) or just turn off/turn\r | |
373 | // on power and restart Identification mode\r | |
374 | return EFI_SUCCESS;\r | |
375 | }\r | |
376 | \r | |
377 | EFI_STATUS\r | |
378 | MmcDetectCard (\r | |
379 | EFI_MMC_HOST_PROTOCOL *MmcHost\r | |
380 | )\r | |
381 | {\r | |
382 | if (!MmcHost->IsCardPresent()) {\r | |
383 | return EFI_NO_MEDIA;\r | |
384 | } else {\r | |
385 | return EFI_SUCCESS;\r | |
386 | }\r | |
387 | }\r | |
388 | \r | |
389 | #define MMCI0_BLOCKLEN 512\r | |
390 | #define MMCI0_TIMEOUT 10000\r | |
391 | \r | |
392 | EFI_STATUS\r | |
393 | MmcIoBlocks (\r | |
394 | IN EFI_BLOCK_IO_PROTOCOL *This,\r | |
395 | IN UINTN Transfer,\r | |
396 | IN UINT32 MediaId,\r | |
397 | IN EFI_LBA Lba,\r | |
398 | IN UINTN BufferSize,\r | |
399 | OUT VOID *Buffer\r | |
400 | )\r | |
401 | {\r | |
402 | UINT32 Response[4];\r | |
403 | EFI_STATUS Status;\r | |
404 | UINTN CardSize, NumBlocks, BlockSize, CmdArg;\r | |
405 | UINTN Timeout;\r | |
406 | UINTN Cmd;\r | |
407 | MMC_HOST_INSTANCE *MmcHostInstance;\r | |
408 | EFI_MMC_HOST_PROTOCOL *MmcHost;\r | |
409 | UINTN BytesRemainingToBeTransfered;\r | |
410 | UINTN BlockCount = 1;\r | |
411 | \r | |
412 | MmcHostInstance = MMC_HOST_INSTANCE_FROM_BLOCK_IO_THIS(This);\r | |
413 | ASSERT(MmcHostInstance != 0);\r | |
414 | MmcHost = MmcHostInstance->MmcHost;\r | |
415 | ASSERT(MmcHost);\r | |
416 | \r | |
417 | if (MmcHost == 0) {\r | |
418 | return EFI_INVALID_PARAMETER;\r | |
419 | }\r | |
420 | \r | |
421 | // Check if a Card is Present\r | |
422 | if (!MmcHost->IsCardPresent()) {\r | |
423 | MmcHostInstance->BlockIo.Media->MediaPresent = FALSE;\r | |
424 | MmcHostInstance->BlockIo.Media->LastBlock = 0;\r | |
425 | MmcHostInstance->BlockIo.Media->BlockSize = 512; // Should be zero but there is a bug in DiskIo\r | |
426 | MmcHostInstance->BlockIo.Media->ReadOnly = FALSE;\r | |
427 | return EFI_NO_MEDIA;\r | |
428 | }\r | |
429 | \r | |
430 | // If the driver has not been initialized yet then go into Iddentification Mode\r | |
431 | if (MmcHostInstance->State == MmcHwInitializationState) {\r | |
432 | MmcIdentificationMode (MmcHostInstance);\r | |
433 | \r | |
434 | //Send a command to get Card specific data\r | |
435 | CmdArg = MmcHostInstance->CardInfo.RCA << 16;\r | |
436 | Status = MmcHost->SendCommand(MMC_CMD9, CmdArg);\r | |
437 | if (EFI_ERROR(Status)) {\r | |
438 | DEBUG((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD9): Error, Status=%r\n", Status));\r | |
439 | ASSERT(0);\r | |
440 | return Status;\r | |
441 | }\r | |
442 | //Read Response\r | |
443 | MmcHost->ReceiveResponse(MMC_RESPONSE_TYPE_CSD,Response);\r | |
444 | PrintCSD(Response);\r | |
445 | \r | |
446 | if (MmcHostInstance->CardInfo.CardType == SD_CARD_2_HIGH) {\r | |
447 | ASSERT(0); //TODO: Implementation needed\r | |
448 | CardSize = MMC_CSD_GET_DEVICESIZE(Response);\r | |
449 | NumBlocks = ((CardSize + 1) * 1024);;\r | |
450 | BlockSize = 1 << MMC_CSD_GET_READBLLEN(Response);\r | |
451 | } else {\r | |
452 | CardSize = MMC_CSD_GET_DEVICESIZE(Response);\r | |
453 | NumBlocks = (CardSize + 1) * (1 << (MMC_CSD_GET_DEVICESIZEMULT(Response) + 2));\r | |
454 | BlockSize = 1 << MMC_CSD_GET_READBLLEN(Response);\r | |
455 | }\r | |
456 | \r | |
457 | //For >=2G card, BlockSize may be 1K, but the transfer size is 512 bytes.\r | |
458 | if (BlockSize > 512) {\r | |
459 | NumBlocks = MultU64x32(NumBlocks, BlockSize/512);\r | |
460 | BlockSize = 512;\r | |
461 | }\r | |
462 | \r | |
463 | MmcHostInstance->BlockIo.Media->LastBlock = (NumBlocks - 1);\r | |
464 | MmcHostInstance->BlockIo.Media->BlockSize = BlockSize;\r | |
465 | MmcHostInstance->BlockIo.Media->ReadOnly = MmcHost->IsReadOnly();\r | |
466 | MmcHostInstance->BlockIo.Media->MediaPresent = TRUE;\r | |
467 | MmcHostInstance->BlockIo.Media->MediaId++;\r | |
468 | \r | |
469 | CmdArg = MmcHostInstance->CardInfo.RCA << 16;\r | |
470 | Status = MmcHost->SendCommand(MMC_CMD7, CmdArg);\r | |
471 | if (EFI_ERROR(Status)) {\r | |
472 | DEBUG((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD7): Error and Status = %r\n", Status));\r | |
473 | ASSERT(0);\r | |
474 | return Status;\r | |
475 | }\r | |
476 | \r | |
477 | Status = MmcNotifyState (MmcHostInstance, MmcTransferState);\r | |
478 | if (EFI_ERROR(Status)) {\r | |
479 | DEBUG((EFI_D_ERROR, "MmcIdentificationMode() : Error MmcTransferState\n"));\r | |
480 | return Status;\r | |
481 | }\r | |
482 | } else {\r | |
483 | // Maybe test if the card has changed to update gMmcMedia information\r | |
484 | if (MmcHostInstance->State == MmcTransferState) {\r | |
485 | //DEBUG((EFI_D_ERROR, "MmcIdentificationMode() : MmcTransferState\n"));\r | |
486 | } else if (MmcHostInstance->State == MmcStandByState) {\r | |
487 | DEBUG((EFI_D_ERROR, "MmcIdentificationMode() : MmcStandByState\n"));\r | |
488 | } else {\r | |
489 | ASSERT(0);\r | |
490 | }\r | |
491 | }\r | |
492 | \r | |
493 | if (Lba > This->Media->LastBlock) {\r | |
494 | ASSERT(0);\r | |
495 | return EFI_INVALID_PARAMETER;\r | |
496 | }\r | |
497 | \r | |
498 | if ((BufferSize % This->Media->BlockSize) != 0) {\r | |
499 | ASSERT(0);\r | |
500 | return EFI_BAD_BUFFER_SIZE;\r | |
501 | }\r | |
502 | \r | |
503 | BytesRemainingToBeTransfered = BufferSize;\r | |
504 | while (BytesRemainingToBeTransfered > 0) {\r | |
505 | \r | |
506 | // Check if the Card is in Ready status\r | |
507 | CmdArg = MmcHostInstance->CardInfo.RCA << 16;\r | |
508 | Response[0] = 0;\r | |
509 | Timeout = 20;\r | |
510 | while(!(Response[0] & MMC_R0_READY_FOR_DATA) && (MMC_R0_CURRENTSTATE(Response) != MMC_R0_STATE_TRAN) && Timeout--) {\r | |
511 | Status = MmcHost->SendCommand(MMC_CMD13, CmdArg);\r | |
512 | if (!EFI_ERROR(Status)) {\r | |
513 | MmcHost->ReceiveResponse(MMC_RESPONSE_TYPE_R1,Response);\r | |
514 | }\r | |
515 | }\r | |
516 | \r | |
517 | if (0 == Timeout) {\r | |
518 | DEBUG((EFI_D_ERROR, "The Card is busy\n"));\r | |
519 | return EFI_NOT_READY;\r | |
520 | }\r | |
521 | \r | |
522 | // Set Block Length\r | |
523 | Status = MmcHost->SendCommand(MMC_CMD16, This->Media->BlockSize);\r | |
524 | if (EFI_ERROR(Status)) {\r | |
525 | DEBUG((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD16): Error This->Media->BlockSize:%d and Error = %r\n",This->Media->BlockSize, Status));\r | |
526 | return Status;\r | |
527 | }\r | |
528 | \r | |
529 | // Block Count (not used). Could return an error for SD card\r | |
530 | MmcHost->SendCommand(MMC_CMD23, BlockCount);\r | |
531 | \r | |
532 | //Set command argument based on the card access mode (Byte mode or Block mode)\r | |
533 | if (MmcHostInstance->CardInfo.OCRData.AccessMode & BIT1) {\r | |
534 | CmdArg = Lba;\r | |
535 | } else {\r | |
536 | CmdArg = Lba * This->Media->BlockSize;\r | |
537 | }\r | |
538 | \r | |
539 | if (Transfer == MMC_IOBLOCKS_READ) {\r | |
540 | #ifndef USE_STREAM\r | |
541 | // Read a single block\r | |
542 | Cmd = MMC_CMD17;\r | |
543 | #else\r | |
544 | //TODO: Should we support read stream (MMC_CMD11)\r | |
545 | #endif\r | |
546 | } else {\r | |
547 | #ifndef USE_STREAM\r | |
548 | // Write a single block\r | |
549 | Cmd = MMC_CMD24;\r | |
550 | #else\r | |
551 | //TODO: Should we support write stream (MMC_CMD20)\r | |
552 | #endif\r | |
553 | }\r | |
554 | Status = MmcHost->SendCommand(Cmd, CmdArg);\r | |
555 | if (EFI_ERROR(Status)) {\r | |
556 | DEBUG((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD%d): Error %r\n",Cmd, Status));\r | |
557 | return Status;\r | |
558 | }\r | |
559 | \r | |
560 | if (Transfer == MMC_IOBLOCKS_READ) {\r | |
561 | #ifndef USE_STREAM\r | |
562 | // Read one block of Data\r | |
563 | Status = MmcHost->ReadBlockData(Lba,This->Media->BlockSize,Buffer);\r | |
564 | if (EFI_ERROR(Status)) {\r | |
565 | DEBUG((EFI_D_BLKIO, "MmcIdentificationMode(): Error Read Block Data and Status = %r\n", Status));\r | |
566 | return Status;\r | |
567 | }\r | |
568 | #else\r | |
569 | //TODO: Read a steam\r | |
570 | ASSERT(0);\r | |
571 | #endif\r | |
572 | Status = MmcNotifyState (MmcHostInstance, MmcProgrammingState);\r | |
573 | if (EFI_ERROR(Status)) {\r | |
574 | DEBUG((EFI_D_ERROR, "MmcIdentificationMode() : Error MmcProgrammingState\n"));\r | |
575 | return Status;\r | |
576 | }\r | |
577 | } else {\r | |
578 | #ifndef USE_STREAM\r | |
579 | // Write one block of Data\r | |
580 | Status = MmcHost->WriteBlockData(Lba,This->Media->BlockSize,Buffer);\r | |
581 | if (EFI_ERROR(Status)) {\r | |
582 | DEBUG((EFI_D_BLKIO, "MmcIdentificationMode(): Error Write Block Data and Status = %r\n", Status));\r | |
583 | return Status;\r | |
584 | }\r | |
585 | #else\r | |
586 | //TODO: Write a steam\r | |
587 | ASSERT(0);\r | |
588 | #endif\r | |
589 | }\r | |
590 | \r | |
591 | // Command 12 - Stop transmission (ends read)\r | |
592 | Status = MmcHost->SendCommand(MMC_CMD12, 0);\r | |
593 | if (!EFI_ERROR(Status)) {\r | |
594 | MmcHost->ReceiveResponse(MMC_RESPONSE_TYPE_R1b,Response);\r | |
595 | }\r | |
596 | \r | |
597 | // Command 13 - Read status and wait for programming to complete (return to tran)\r | |
598 | Timeout = MMCI0_TIMEOUT;\r | |
599 | CmdArg = MmcHostInstance->CardInfo.RCA << 16;\r | |
600 | Response[0] = 0;\r | |
601 | while(!(Response[0] & MMC_R0_READY_FOR_DATA) && (MMC_R0_CURRENTSTATE(Response) != MMC_R0_STATE_TRAN) && Timeout--) {\r | |
602 | Status = MmcHost->SendCommand(MMC_CMD13, CmdArg);\r | |
603 | if (!EFI_ERROR(Status)) {\r | |
604 | MmcHost->ReceiveResponse(MMC_RESPONSE_TYPE_R1,Response);\r | |
605 | }\r | |
606 | NanoSecondDelay(100);\r | |
607 | Timeout--;\r | |
608 | }\r | |
609 | \r | |
610 | Status = MmcNotifyState (MmcHostInstance, MmcTransferState);\r | |
611 | if (EFI_ERROR(Status)) {\r | |
612 | DEBUG((EFI_D_ERROR, "MmcIdentificationMode() : Error MmcTransferState\n"));\r | |
613 | return Status;\r | |
614 | }\r | |
615 | \r | |
616 | BytesRemainingToBeTransfered -= This->Media->BlockSize;\r | |
617 | Lba += BlockCount;\r | |
618 | Buffer = (UINT8 *)Buffer + This->Media->BlockSize;\r | |
619 | }\r | |
620 | \r | |
621 | return EFI_SUCCESS;\r | |
622 | }\r | |
623 | \r | |
624 | EFI_STATUS\r | |
625 | EFIAPI\r | |
626 | MmcReadBlocks (\r | |
627 | IN EFI_BLOCK_IO_PROTOCOL *This,\r | |
628 | IN UINT32 MediaId,\r | |
629 | IN EFI_LBA Lba,\r | |
630 | IN UINTN BufferSize,\r | |
631 | OUT VOID *Buffer\r | |
632 | )\r | |
633 | {\r | |
634 | return MmcIoBlocks (This, MMC_IOBLOCKS_READ, MediaId, Lba, BufferSize, Buffer);\r | |
635 | }\r | |
636 | \r | |
637 | EFI_STATUS\r | |
638 | EFIAPI\r | |
639 | MmcWriteBlocks (\r | |
640 | IN EFI_BLOCK_IO_PROTOCOL *This,\r | |
641 | IN UINT32 MediaId,\r | |
642 | IN EFI_LBA Lba,\r | |
643 | IN UINTN BufferSize,\r | |
644 | IN VOID *Buffer\r | |
645 | )\r | |
646 | {\r | |
647 | return MmcIoBlocks (This, MMC_IOBLOCKS_WRITE, MediaId, Lba, BufferSize, Buffer);\r | |
648 | }\r | |
649 | \r | |
650 | EFI_STATUS\r | |
651 | EFIAPI\r | |
652 | MmcFlushBlocks (\r | |
653 | IN EFI_BLOCK_IO_PROTOCOL *This\r | |
654 | )\r | |
655 | {\r | |
656 | return EFI_SUCCESS;\r | |
657 | }\r | |
658 | \r |