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1bfda055 | 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 | |
a1ab9143 | 25 | #define MAX_RETRY_COUNT 1000\r |
26 | #define CMD_RETRY_COUNT 20\r | |
1bfda055 | 27 | \r |
28 | EFI_STATUS\r | |
29 | MmcNotifyState (\r | |
e8e95df4 | 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 | |
1bfda055 | 36 | }\r |
37 | \r | |
e8e95df4 | 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 | |
1bfda055 | 55 | }\r |
e8e95df4 | 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 | |
1bfda055 | 72 | }\r |
73 | \r | |
e8e95df4 | 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 | |
1bfda055 | 84 | }\r |
85 | \r | |
e8e95df4 | 86 | VOID\r |
87 | PrintCSD (\r | |
88 | IN UINT32* Csd\r | |
89 | )\r | |
90 | {\r | |
91 | UINTN Value;\r | |
92 | CONST CHAR8* str_unit[] = { "100kbit/s","1Mbit/s","10Mbit/s","100MBit/s","Unkbown","Unkbown","Unkbown","Unkbown" };\r | |
93 | 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 | |
94 | \r | |
95 | if (((Csd[2] >> 30) & 0x3) == 0) {\r | |
96 | DEBUG((EFI_D_ERROR, "- PrintCSD Version 1.01-1.10/Version 2.00/Standard Capacity\n"));\r | |
97 | } else if (((Csd[2] >> 30) & 0x3) == 1) {\r | |
98 | DEBUG((EFI_D_ERROR, "- PrintCSD Version 2.00/High Capacity\n"));\r | |
99 | } else {\r | |
100 | DEBUG((EFI_D_ERROR, "- PrintCSD Version Higher than v3.3\n"));\r | |
101 | }\r | |
102 | \r | |
103 | DEBUG((EFI_D_ERROR, "\t- Supported card command class: 0x%X\n",MMC_CSD_GET_CCC(Csd)));\r | |
104 | 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 | |
105 | DEBUG((EFI_D_ERROR, "\t- Maximum Read Data Block: %d\n",2 << (MMC_CSD_GET_READBLLEN(Csd)-1)));\r | |
106 | DEBUG((EFI_D_ERROR, "\t- Maximum Write Data Block: %d\n",2 << (MMC_CSD_GET_WRITEBLLEN(Csd)-1)));\r | |
107 | \r | |
108 | if (!MMC_CSD_GET_FILEFORMATGRP(Csd)) {\r | |
109 | Value = MMC_CSD_GET_FILEFORMAT(Csd);\r | |
110 | if (Value == 0) DEBUG((EFI_D_ERROR, "\t- Format(0): Hard disk-like file system with partition table\n"));\r | |
111 | else if (Value == 1) DEBUG((EFI_D_ERROR, "\t- Format(1): DOS FAT (floppy-like) with boot sector only (no partition table)\n"));\r | |
112 | else if (Value == 2) DEBUG((EFI_D_ERROR, "\t- Format(2): Universal File Format\n"));\r | |
113 | else DEBUG((EFI_D_ERROR, "\t- Format(3): Others/Unknown\n"));\r | |
114 | } else {\r | |
115 | DEBUG((EFI_D_ERROR, "\t- Format: Reserved\n"));\r | |
116 | }\r | |
1bfda055 | 117 | }\r |
118 | \r | |
e8e95df4 | 119 | VOID\r |
120 | PrintRCA (\r | |
121 | IN UINT32 Rca\r | |
122 | )\r | |
123 | {\r | |
124 | DEBUG((EFI_D_ERROR, "- PrintRCA: 0x%X\n",Rca));\r | |
125 | DEBUG((EFI_D_ERROR, "\t- Status: 0x%X\n",Rca & 0xFFFF));\r | |
126 | DEBUG((EFI_D_ERROR, "\t- RCA: 0x%X\n",(Rca >> 16) & 0xFFFF));\r | |
1bfda055 | 127 | }\r |
128 | \r | |
e8e95df4 | 129 | VOID\r |
130 | PrintResponseR1 (\r | |
131 | IN UINT32 Response\r | |
132 | )\r | |
133 | {\r | |
134 | DEBUG((EFI_D_INFO, "Response: 0x%X\n",Response));\r | |
135 | if (Response & (1 << 8)) DEBUG((EFI_D_INFO, "\t- READY_FOR_DATA\n"));\r | |
136 | \r | |
137 | if (((Response >> 9) & 0xF) == 0) DEBUG((EFI_D_INFO, "\t- State: Idle\n"));\r | |
138 | else if (((Response >> 9) & 0xF) == 1) DEBUG((EFI_D_INFO, "\t- State: Ready\n"));\r | |
139 | else if (((Response >> 9) & 0xF) == 2) DEBUG((EFI_D_INFO, "\t- State: Ident\n"));\r | |
140 | else if (((Response >> 9) & 0xF) == 3) DEBUG((EFI_D_INFO, "\t- State: StandBy\n"));\r | |
141 | else if (((Response >> 9) & 0xF) == 4) DEBUG((EFI_D_INFO, "\t- State: Tran\n"));\r | |
142 | else if (((Response >> 9) & 0xF) == 5) DEBUG((EFI_D_INFO, "\t- State: Data\n"));\r | |
143 | else if (((Response >> 9) & 0xF) == 6) DEBUG((EFI_D_INFO, "\t- State: Rcv\n"));\r | |
144 | else if (((Response >> 9) & 0xF) == 7) DEBUG((EFI_D_INFO, "\t- State: Prg\n"));\r | |
145 | else if (((Response >> 9) & 0xF) == 8) DEBUG((EFI_D_INFO, "\t- State: Dis\n"));\r | |
146 | else DEBUG((EFI_D_INFO, "\t- State: Reserved\n"));\r | |
a1ab9143 | 147 | }\r |
148 | \r | |
149 | EFI_STATUS\r | |
150 | EFIAPI\r | |
151 | MmcGetCardStatus(\r | |
e8e95df4 | 152 | IN MMC_HOST_INSTANCE *MmcHostInstance\r |
153 | )\r | |
154 | {\r | |
155 | EFI_STATUS Status;\r | |
156 | UINT32 Response[4];\r | |
157 | UINTN CmdArg;\r | |
158 | EFI_MMC_HOST_PROTOCOL *MmcHost;\r | |
159 | \r | |
160 | Status = EFI_SUCCESS;\r | |
161 | MmcHost = MmcHostInstance->MmcHost;\r | |
162 | CmdArg = 0;\r | |
163 | \r | |
164 | if (MmcHost == NULL) {\r | |
165 | return EFI_INVALID_PARAMETER;\r | |
166 | }\r | |
167 | if(MmcHostInstance->State != MmcHwInitializationState){\r | |
168 | //Get the Status of the card.\r | |
169 | CmdArg = MmcHostInstance->CardInfo.RCA << 16;\r | |
170 | Status = MmcHost->SendCommand(MMC_CMD13, CmdArg);\r | |
171 | if (EFI_ERROR(Status)) {\r | |
172 | DEBUG((EFI_D_ERROR, "MmcGetCardStatus(MMC_CMD13): Error and Status = %r\n", Status));\r | |
173 | ASSERT(0);\r | |
174 | return Status;\r | |
a1ab9143 | 175 | }\r |
176 | \r | |
e8e95df4 | 177 | //Read Response\r |
178 | MmcHost->ReceiveResponse(MMC_RESPONSE_TYPE_R1,Response);\r | |
179 | PrintResponseR1(Response[0]);\r | |
180 | }\r | |
181 | \r | |
182 | return Status;\r | |
1bfda055 | 183 | }\r |
184 | \r | |
185 | EFI_STATUS\r | |
186 | EFIAPI\r | |
187 | MmcIdentificationMode (\r | |
e8e95df4 | 188 | IN MMC_HOST_INSTANCE *MmcHostInstance\r |
189 | )\r | |
190 | {\r | |
191 | EFI_STATUS Status;\r | |
192 | UINT32 Response[4];\r | |
193 | UINTN Timeout;\r | |
194 | UINTN CmdArg;\r | |
195 | BOOLEAN IsHCS;\r | |
196 | EFI_MMC_HOST_PROTOCOL *MmcHost;\r | |
197 | UINTN CmdRetryCnt;\r | |
198 | \r | |
199 | MmcHost = MmcHostInstance->MmcHost;\r | |
200 | CmdArg = 0;\r | |
201 | IsHCS = FALSE;\r | |
202 | \r | |
203 | if (MmcHost == NULL) {\r | |
204 | return EFI_INVALID_PARAMETER;\r | |
205 | }\r | |
206 | \r | |
207 | // We can get into this function if we restart the identification mode\r | |
208 | if (MmcHostInstance->State == MmcHwInitializationState) {\r | |
209 | // Initialize the MMC Host HW\r | |
210 | Status = MmcNotifyState (MmcHostInstance, MmcHwInitializationState);\r | |
211 | if (EFI_ERROR(Status)) {\r | |
212 | DEBUG((EFI_D_ERROR, "MmcIdentificationMode() : Error MmcHwInitializationState\n"));\r | |
213 | return Status;\r | |
1bfda055 | 214 | }\r |
e8e95df4 | 215 | } else {\r |
216 | //Note: Could even be used in all cases. But it looks this command could put the state machine into inactive for some cards\r | |
217 | Status = MmcHost->SendCommand(MMC_CMD0, 0);\r | |
1bfda055 | 218 | if (EFI_ERROR(Status)) {\r |
e8e95df4 | 219 | DEBUG((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD0): Error\n"));\r |
220 | return Status;\r | |
1bfda055 | 221 | }\r |
e8e95df4 | 222 | }\r |
223 | \r | |
224 | Status = MmcNotifyState (MmcHostInstance, MmcIdleState);\r | |
225 | if (EFI_ERROR(Status)) {\r | |
226 | DEBUG((EFI_D_ERROR, "MmcIdentificationMode() : Error MmcIdleState\n"));\r | |
227 | return Status;\r | |
228 | }\r | |
229 | \r | |
230 | // Are we using SDIO ?\r | |
231 | Status = MmcHost->SendCommand(MMC_CMD5, 0);\r | |
232 | if (Status == EFI_SUCCESS) {\r | |
233 | DEBUG((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD5): Error - SDIO not supported.\n"));\r | |
234 | return EFI_UNSUPPORTED;\r | |
235 | }\r | |
236 | \r | |
237 | // Check which kind of card we are using. Ver2.00 or later SD Memory Card (PL180 is SD v1.1)\r | |
238 | CmdArg = (0x0UL << 12 | BIT8 | 0xCEUL << 0);\r | |
239 | Status = MmcHost->SendCommand(MMC_CMD8, CmdArg);\r | |
240 | if (Status == EFI_SUCCESS) {\r | |
241 | DEBUG ((EFI_D_ERROR, "Card is SD2.0 => Supports high capacity\n"));\r | |
242 | IsHCS = TRUE;\r | |
243 | MmcHost->ReceiveResponse(MMC_RESPONSE_TYPE_R7,Response);\r | |
244 | PrintResponseR1(Response[0]);\r | |
245 | //check if it is valid response\r | |
246 | if(Response[0] != CmdArg){\r | |
247 | DEBUG ((EFI_D_ERROR, "The Card is not usable\n"));\r | |
248 | return EFI_UNSUPPORTED;\r | |
1bfda055 | 249 | }\r |
e8e95df4 | 250 | } else {\r |
251 | DEBUG ((EFI_D_ERROR, "Not a SD2.0 Card\n"));\r | |
252 | }\r | |
253 | \r | |
254 | // We need to wait for the MMC or SD card is ready => (gCardInfo.OCRData.Busy == 1)\r | |
255 | Timeout = MAX_RETRY_COUNT;\r | |
256 | while (Timeout > 0) {\r | |
257 | // SD Card or MMC Card ? CMD55 indicates to the card that the next command is an application specific command\r | |
258 | Status = MmcHost->SendCommand(MMC_CMD55, 0);\r | |
1bfda055 | 259 | if (Status == EFI_SUCCESS) {\r |
e8e95df4 | 260 | DEBUG ((EFI_D_INFO, "Card should be SD\n"));\r |
261 | if (IsHCS) {\r | |
262 | MmcHostInstance->CardInfo.CardType = SD_CARD_2;\r | |
1bfda055 | 263 | } else {\r |
e8e95df4 | 264 | MmcHostInstance->CardInfo.CardType = SD_CARD;\r |
1bfda055 | 265 | }\r |
266 | \r | |
e8e95df4 | 267 | // Note: The first time CmdArg will be zero\r |
268 | CmdArg = ((UINTN *) &(MmcHostInstance->CardInfo.OCRData))[0];\r | |
269 | if (IsHCS) {\r | |
270 | CmdArg |= BIT30;\r | |
271 | }\r | |
272 | Status = MmcHost->SendCommand(MMC_ACMD41, CmdArg);\r | |
a1ab9143 | 273 | if (!EFI_ERROR(Status)) {\r |
e8e95df4 | 274 | MmcHost->ReceiveResponse(MMC_RESPONSE_TYPE_OCR,Response);\r |
275 | ((UINT32 *) &(MmcHostInstance->CardInfo.OCRData))[0] = Response[0];\r | |
1bfda055 | 276 | }\r |
1bfda055 | 277 | } else {\r |
e8e95df4 | 278 | DEBUG ((EFI_D_INFO, "Card should be MMC\n"));\r |
279 | MmcHostInstance->CardInfo.CardType = MMC_CARD;\r | |
1bfda055 | 280 | \r |
e8e95df4 | 281 | Status = MmcHost->SendCommand(MMC_CMD1, 0x800000);\r |
282 | if (!EFI_ERROR(Status)) {\r | |
283 | MmcHost->ReceiveResponse(MMC_RESPONSE_TYPE_OCR,Response);\r | |
284 | ((UINT32 *) &(MmcHostInstance->CardInfo.OCRData))[0] = Response[0];\r | |
a1ab9143 | 285 | }\r |
1bfda055 | 286 | }\r |
1bfda055 | 287 | \r |
e8e95df4 | 288 | if (!EFI_ERROR(Status)) {\r |
289 | if (MmcHostInstance->CardInfo.OCRData.Busy == 0) {\r | |
290 | MicroSecondDelay(1);\r | |
291 | Timeout--;\r | |
292 | } else {\r | |
293 | if ((MmcHostInstance->CardInfo.CardType == SD_CARD_2) && (MmcHostInstance->CardInfo.OCRData.AccessMode & BIT1)) {\r | |
294 | MmcHostInstance->CardInfo.CardType = SD_CARD_2_HIGH;\r | |
295 | DEBUG ((EFI_D_ERROR, "High capacity card.\n"));\r | |
296 | }\r | |
297 | break; // The MMC/SD card is ready. Continue the Identification Mode\r | |
298 | }\r | |
1bfda055 | 299 | } else {\r |
e8e95df4 | 300 | MicroSecondDelay(1);\r |
301 | Timeout--;\r | |
1bfda055 | 302 | }\r |
e8e95df4 | 303 | }\r |
304 | \r | |
305 | if (Timeout == 0) {\r | |
306 | DEBUG((EFI_D_ERROR, "MmcIdentificationMode(): No Card\n"));\r | |
307 | ASSERT(0);\r | |
308 | return EFI_NO_MEDIA;\r | |
309 | } else {\r | |
310 | PrintOCR(Response[0]);\r | |
311 | }\r | |
312 | \r | |
313 | Status = MmcNotifyState (MmcHostInstance, MmcReadyState);\r | |
314 | if (EFI_ERROR(Status)) {\r | |
315 | DEBUG((EFI_D_ERROR, "MmcIdentificationMode() : Error MmcReadyState\n"));\r | |
316 | return Status;\r | |
317 | }\r | |
318 | \r | |
319 | Status = MmcHost->SendCommand(MMC_CMD2, 0);\r | |
320 | if (EFI_ERROR(Status)) {\r | |
321 | DEBUG((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD2): Error\n"));\r | |
322 | ASSERT(0);\r | |
323 | return Status;\r | |
324 | }\r | |
325 | MmcHost->ReceiveResponse(MMC_RESPONSE_TYPE_CID,Response);\r | |
326 | PrintCID(Response);\r | |
327 | \r | |
328 | Status = MmcNotifyState (MmcHostInstance, MmcIdentificationState);\r | |
329 | if (EFI_ERROR(Status)) {\r | |
330 | DEBUG((EFI_D_ERROR, "MmcIdentificationMode() : Error MmcIdentificationState\n"));\r | |
331 | return Status;\r | |
332 | }\r | |
333 | \r | |
334 | CmdArg = 0;\r | |
335 | CmdRetryCnt = CMD_RETRY_COUNT;\r | |
336 | //Keep sending CMD 3 until card enters to Standby mode and Card status is ready\r | |
337 | while((MMC_R0_CURRENTSTATE(Response) != MMC_R0_STATE_STDBY) && CmdRetryCnt--) {\r | |
338 | Status = MmcHost->SendCommand(MMC_CMD3, CmdArg);\r | |
1bfda055 | 339 | if (EFI_ERROR(Status)) {\r |
e8e95df4 | 340 | DEBUG((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD3): Error\n"));\r |
1bfda055 | 341 | return Status;\r |
342 | }\r | |
e8e95df4 | 343 | MmcHost->ReceiveResponse(MMC_RESPONSE_TYPE_RCA,Response);\r |
344 | PrintRCA(Response[0]);\r | |
345 | }\r | |
346 | \r | |
347 | // For MMC card, RCA is assigned by CMD3 while CMD3 dumps the RCA for SD card\r | |
348 | if (MmcHostInstance->CardInfo.CardType != MMC_CARD) {\r | |
349 | MmcHostInstance->CardInfo.RCA = Response[0] >> 16;\r | |
350 | } else {\r | |
351 | MmcHostInstance->CardInfo.RCA = CmdArg;\r | |
352 | }\r | |
353 | \r | |
354 | Status = MmcNotifyState (MmcHostInstance, MmcStandByState);\r | |
355 | if (EFI_ERROR(Status)) {\r | |
356 | DEBUG((EFI_D_ERROR, "MmcIdentificationMode() : Error MmcStandByState\n"));\r | |
357 | return Status;\r | |
358 | }\r | |
359 | \r | |
360 | return EFI_SUCCESS;\r | |
1bfda055 | 361 | }\r |
362 | \r | |
363 | EFI_STATUS\r | |
364 | EFIAPI\r | |
365 | MmcReset (\r | |
366 | IN EFI_BLOCK_IO_PROTOCOL *This,\r | |
367 | IN BOOLEAN ExtendedVerification\r | |
e8e95df4 | 368 | )\r |
369 | {\r | |
370 | // Implement me. Either send a CMD0 (could not work for some MMC host) or just turn off/turn\r | |
371 | // on power and restart Identification mode\r | |
372 | return EFI_SUCCESS;\r | |
1bfda055 | 373 | }\r |
374 | \r | |
375 | EFI_STATUS\r | |
376 | MmcDetectCard (\r | |
377 | EFI_MMC_HOST_PROTOCOL *MmcHost\r | |
378 | )\r | |
379 | {\r | |
e8e95df4 | 380 | if (!MmcHost->IsCardPresent()) {\r |
381 | return EFI_NO_MEDIA;\r | |
382 | } else {\r | |
383 | return EFI_SUCCESS;\r | |
384 | }\r | |
1bfda055 | 385 | }\r |
386 | \r | |
387 | #define MMCI0_BLOCKLEN 512\r | |
388 | #define MMCI0_TIMEOUT 10000\r | |
389 | \r | |
e8e95df4 | 390 | EFI_STATUS\r |
391 | MmcIoBlocks (\r | |
1bfda055 | 392 | IN EFI_BLOCK_IO_PROTOCOL *This,\r |
393 | IN UINTN Transfer,\r | |
394 | IN UINT32 MediaId,\r | |
395 | IN EFI_LBA Lba,\r | |
396 | IN UINTN BufferSize,\r | |
397 | OUT VOID *Buffer\r | |
e8e95df4 | 398 | )\r |
399 | {\r | |
400 | UINT32 Response[4];\r | |
401 | EFI_STATUS Status;\r | |
402 | UINTN CardSize, NumBlocks, BlockSize, CmdArg;\r | |
403 | UINTN Timeout;\r | |
404 | UINTN Cmd;\r | |
405 | MMC_HOST_INSTANCE *MmcHostInstance;\r | |
406 | EFI_MMC_HOST_PROTOCOL *MmcHost;\r | |
407 | UINTN BytesRemainingToBeTransfered;\r | |
408 | UINTN BlockCount = 1;\r | |
409 | \r | |
410 | MmcHostInstance = MMC_HOST_INSTANCE_FROM_BLOCK_IO_THIS(This);\r | |
411 | ASSERT(MmcHostInstance != 0);\r | |
412 | MmcHost = MmcHostInstance->MmcHost;\r | |
413 | ASSERT(MmcHost);\r | |
414 | \r | |
415 | if (MmcHost == 0) {\r | |
416 | return EFI_INVALID_PARAMETER;\r | |
417 | }\r | |
418 | \r | |
419 | // Check if a Card is Present\r | |
420 | if (!MmcHost->IsCardPresent()) {\r | |
421 | MmcHostInstance->BlockIo.Media->MediaPresent = FALSE;\r | |
422 | MmcHostInstance->BlockIo.Media->LastBlock = 0;\r | |
423 | MmcHostInstance->BlockIo.Media->BlockSize = 512; // Should be zero but there is a bug in DiskIo\r | |
424 | MmcHostInstance->BlockIo.Media->ReadOnly = FALSE;\r | |
425 | return EFI_NO_MEDIA;\r | |
426 | }\r | |
427 | \r | |
428 | // If the driver has not been initialized yet then go into Iddentification Mode\r | |
429 | if (MmcHostInstance->State == MmcHwInitializationState) {\r | |
430 | MmcIdentificationMode (MmcHostInstance);\r | |
431 | \r | |
432 | //Send a command to get Card specific data\r | |
433 | CmdArg = MmcHostInstance->CardInfo.RCA << 16;\r | |
434 | Status = MmcHost->SendCommand(MMC_CMD9, CmdArg);\r | |
435 | if (EFI_ERROR(Status)) {\r | |
436 | DEBUG((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD9): Error, Status=%r\n", Status));\r | |
437 | ASSERT(0);\r | |
438 | return Status;\r | |
1bfda055 | 439 | }\r |
e8e95df4 | 440 | //Read Response\r |
441 | MmcHost->ReceiveResponse(MMC_RESPONSE_TYPE_CSD,Response);\r | |
442 | PrintCSD(Response);\r | |
443 | \r | |
444 | if (MmcHostInstance->CardInfo.CardType == SD_CARD_2_HIGH) {\r | |
445 | ASSERT(0); //TODO: Implementation needed\r | |
446 | CardSize = MMC_CSD_GET_DEVICESIZE(Response);\r | |
447 | NumBlocks = ((CardSize + 1) * 1024);;\r | |
448 | BlockSize = 1 << MMC_CSD_GET_READBLLEN(Response);\r | |
449 | } else {\r | |
450 | CardSize = MMC_CSD_GET_DEVICESIZE(Response);\r | |
451 | NumBlocks = (CardSize + 1) * (1 << (MMC_CSD_GET_DEVICESIZEMULT(Response) + 2));\r | |
452 | BlockSize = 1 << MMC_CSD_GET_READBLLEN(Response);\r | |
1bfda055 | 453 | }\r |
454 | \r | |
e8e95df4 | 455 | //For >=2G card, BlockSize may be 1K, but the transfer size is 512 bytes.\r |
456 | if (BlockSize > 512) {\r | |
457 | NumBlocks = MultU64x32(NumBlocks, BlockSize/512);\r | |
458 | BlockSize = 512;\r | |
459 | }\r | |
1bfda055 | 460 | \r |
e8e95df4 | 461 | MmcHostInstance->BlockIo.Media->LastBlock = (NumBlocks - 1);\r |
462 | MmcHostInstance->BlockIo.Media->BlockSize = BlockSize;\r | |
463 | MmcHostInstance->BlockIo.Media->ReadOnly = MmcHost->IsReadOnly();\r | |
464 | MmcHostInstance->BlockIo.Media->MediaPresent = TRUE;\r | |
465 | MmcHostInstance->BlockIo.Media->MediaId++;\r | |
a1ab9143 | 466 | \r |
e8e95df4 | 467 | CmdArg = MmcHostInstance->CardInfo.RCA << 16;\r |
468 | Status = MmcHost->SendCommand(MMC_CMD7, CmdArg);\r | |
469 | if (EFI_ERROR(Status)) {\r | |
470 | DEBUG((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD7): Error and Status = %r\n", Status));\r | |
471 | ASSERT(0);\r | |
472 | return Status;\r | |
1bfda055 | 473 | }\r |
474 | \r | |
e8e95df4 | 475 | Status = MmcNotifyState (MmcHostInstance, MmcTransferState);\r |
476 | if (EFI_ERROR(Status)) {\r | |
477 | DEBUG((EFI_D_ERROR, "MmcIdentificationMode() : Error MmcTransferState\n"));\r | |
478 | return Status;\r | |
479 | }\r | |
480 | } else {\r | |
481 | // Maybe test if the card has changed to update gMmcMedia information\r | |
482 | if (MmcHostInstance->State == MmcTransferState) {\r | |
483 | //DEBUG((EFI_D_ERROR, "MmcIdentificationMode() : MmcTransferState\n"));\r | |
484 | } else if (MmcHostInstance->State == MmcStandByState) {\r | |
485 | DEBUG((EFI_D_ERROR, "MmcIdentificationMode() : MmcStandByState\n"));\r | |
486 | } else {\r | |
487 | ASSERT(0);\r | |
1bfda055 | 488 | }\r |
e8e95df4 | 489 | }\r |
490 | \r | |
491 | if (Lba > This->Media->LastBlock) {\r | |
492 | ASSERT(0);\r | |
493 | return EFI_INVALID_PARAMETER;\r | |
494 | }\r | |
495 | \r | |
496 | if ((BufferSize % This->Media->BlockSize) != 0) {\r | |
497 | ASSERT(0);\r | |
498 | return EFI_BAD_BUFFER_SIZE;\r | |
499 | }\r | |
500 | \r | |
501 | BytesRemainingToBeTransfered = BufferSize;\r | |
502 | while (BytesRemainingToBeTransfered > 0) {\r | |
503 | \r | |
504 | // Check if the Card is in Ready status\r | |
505 | CmdArg = MmcHostInstance->CardInfo.RCA << 16;\r | |
506 | Response[0] = 0;\r | |
507 | Timeout = 20;\r | |
508 | while(!(Response[0] & MMC_R0_READY_FOR_DATA) && (MMC_R0_CURRENTSTATE(Response) != MMC_R0_STATE_TRAN) && Timeout--) {\r | |
509 | Status = MmcHost->SendCommand(MMC_CMD13, CmdArg);\r | |
510 | if (!EFI_ERROR(Status)) {\r | |
511 | MmcHost->ReceiveResponse(MMC_RESPONSE_TYPE_R1,Response);\r | |
512 | }\r | |
1bfda055 | 513 | }\r |
514 | \r | |
e8e95df4 | 515 | if (0 == Timeout) {\r |
516 | DEBUG((EFI_D_ERROR, "The Card is busy\n"));\r | |
517 | return EFI_NOT_READY;\r | |
b9d5fe03 | 518 | }\r |
519 | \r | |
e8e95df4 | 520 | // Set Block Length\r |
521 | Status = MmcHost->SendCommand(MMC_CMD16, This->Media->BlockSize);\r | |
522 | if (EFI_ERROR(Status)) {\r | |
523 | DEBUG((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD16): Error This->Media->BlockSize:%d and Error = %r\n",This->Media->BlockSize, Status));\r | |
524 | return Status;\r | |
525 | }\r | |
1bfda055 | 526 | \r |
e8e95df4 | 527 | // Block Count (not used). Could return an error for SD card\r |
528 | MmcHost->SendCommand(MMC_CMD23, BlockCount);\r | |
1bfda055 | 529 | \r |
e8e95df4 | 530 | //Set command argument based on the card access mode (Byte mode or Block mode)\r |
531 | if (MmcHostInstance->CardInfo.OCRData.AccessMode & BIT1) {\r | |
532 | CmdArg = Lba;\r | |
533 | } else {\r | |
534 | CmdArg = Lba * This->Media->BlockSize;\r | |
535 | }\r | |
1bfda055 | 536 | \r |
e8e95df4 | 537 | if (Transfer == MMC_IOBLOCKS_READ) {\r |
1bfda055 | 538 | #ifndef USE_STREAM\r |
e8e95df4 | 539 | // Read a single block\r |
540 | Cmd = MMC_CMD17;\r | |
1bfda055 | 541 | #else\r |
e8e95df4 | 542 | //TODO: Should we support read stream (MMC_CMD11)\r |
1bfda055 | 543 | #endif\r |
e8e95df4 | 544 | } else {\r |
1bfda055 | 545 | #ifndef USE_STREAM\r |
e8e95df4 | 546 | // Write a single block\r |
547 | Cmd = MMC_CMD24;\r | |
1bfda055 | 548 | #else\r |
e8e95df4 | 549 | //TODO: Should we support write stream (MMC_CMD20)\r |
1bfda055 | 550 | #endif\r |
e8e95df4 | 551 | }\r |
552 | Status = MmcHost->SendCommand(Cmd, CmdArg);\r | |
553 | if (EFI_ERROR(Status)) {\r | |
554 | DEBUG((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD%d): Error %r\n",Cmd, Status));\r | |
555 | return Status;\r | |
556 | }\r | |
1bfda055 | 557 | \r |
e8e95df4 | 558 | if (Transfer == MMC_IOBLOCKS_READ) {\r |
1bfda055 | 559 | #ifndef USE_STREAM\r |
e8e95df4 | 560 | // Read one block of Data\r |
561 | Status = MmcHost->ReadBlockData(Lba,This->Media->BlockSize,Buffer);\r | |
562 | if (EFI_ERROR(Status)) {\r | |
563 | DEBUG((EFI_D_BLKIO, "MmcIdentificationMode(): Error Read Block Data and Status = %r\n", Status));\r | |
564 | return Status;\r | |
565 | }\r | |
1bfda055 | 566 | #else\r |
e8e95df4 | 567 | //TODO: Read a steam\r |
568 | ASSERT(0);\r | |
1bfda055 | 569 | #endif\r |
e8e95df4 | 570 | Status = MmcNotifyState (MmcHostInstance, MmcProgrammingState);\r |
571 | if (EFI_ERROR(Status)) {\r | |
572 | DEBUG((EFI_D_ERROR, "MmcIdentificationMode() : Error MmcProgrammingState\n"));\r | |
573 | return Status;\r | |
574 | }\r | |
575 | } else {\r | |
1bfda055 | 576 | #ifndef USE_STREAM\r |
e8e95df4 | 577 | // Write one block of Data\r |
578 | Status = MmcHost->WriteBlockData(Lba,This->Media->BlockSize,Buffer);\r | |
579 | if (EFI_ERROR(Status)) {\r | |
580 | DEBUG((EFI_D_BLKIO, "MmcIdentificationMode(): Error Write Block Data and Status = %r\n", Status));\r | |
581 | return Status;\r | |
582 | }\r | |
1bfda055 | 583 | #else\r |
e8e95df4 | 584 | //TODO: Write a steam\r |
585 | ASSERT(0);\r | |
1bfda055 | 586 | #endif\r |
e8e95df4 | 587 | }\r |
1bfda055 | 588 | \r |
e8e95df4 | 589 | // Command 12 - Stop transmission (ends read)\r |
590 | Status = MmcHost->SendCommand(MMC_CMD12, 0);\r | |
591 | if (!EFI_ERROR(Status)) {\r | |
592 | MmcHost->ReceiveResponse(MMC_RESPONSE_TYPE_R1b,Response);\r | |
593 | }\r | |
1bfda055 | 594 | \r |
e8e95df4 | 595 | // Command 13 - Read status and wait for programming to complete (return to tran)\r |
596 | Timeout = MMCI0_TIMEOUT;\r | |
597 | CmdArg = MmcHostInstance->CardInfo.RCA << 16;\r | |
598 | Response[0] = 0;\r | |
599 | while(!(Response[0] & MMC_R0_READY_FOR_DATA) && (MMC_R0_CURRENTSTATE(Response) != MMC_R0_STATE_TRAN) && Timeout--) {\r | |
600 | Status = MmcHost->SendCommand(MMC_CMD13, CmdArg);\r | |
601 | if (!EFI_ERROR(Status)) {\r | |
602 | MmcHost->ReceiveResponse(MMC_RESPONSE_TYPE_R1,Response);\r | |
603 | }\r | |
604 | NanoSecondDelay(100);\r | |
605 | Timeout--;\r | |
606 | }\r | |
1bfda055 | 607 | \r |
e8e95df4 | 608 | Status = MmcNotifyState (MmcHostInstance, MmcTransferState);\r |
609 | if (EFI_ERROR(Status)) {\r | |
610 | DEBUG((EFI_D_ERROR, "MmcIdentificationMode() : Error MmcTransferState\n"));\r | |
611 | return Status;\r | |
1bfda055 | 612 | }\r |
613 | \r | |
e8e95df4 | 614 | BytesRemainingToBeTransfered -= This->Media->BlockSize;\r |
615 | Lba += BlockCount;\r | |
616 | Buffer = (UINT8 *)Buffer + This->Media->BlockSize;\r | |
617 | }\r | |
618 | \r | |
619 | return EFI_SUCCESS;\r | |
1bfda055 | 620 | }\r |
621 | \r | |
622 | EFI_STATUS\r | |
623 | EFIAPI\r | |
624 | MmcReadBlocks (\r | |
625 | IN EFI_BLOCK_IO_PROTOCOL *This,\r | |
626 | IN UINT32 MediaId,\r | |
627 | IN EFI_LBA Lba,\r | |
628 | IN UINTN BufferSize,\r | |
629 | OUT VOID *Buffer\r | |
e8e95df4 | 630 | )\r |
631 | {\r | |
632 | return MmcIoBlocks (This, MMC_IOBLOCKS_READ, MediaId, Lba, BufferSize, Buffer);\r | |
1bfda055 | 633 | }\r |
634 | \r | |
635 | EFI_STATUS\r | |
636 | EFIAPI\r | |
637 | MmcWriteBlocks (\r | |
638 | IN EFI_BLOCK_IO_PROTOCOL *This,\r | |
639 | IN UINT32 MediaId,\r | |
640 | IN EFI_LBA Lba,\r | |
641 | IN UINTN BufferSize,\r | |
642 | IN VOID *Buffer\r | |
e8e95df4 | 643 | )\r |
644 | {\r | |
645 | return MmcIoBlocks (This, MMC_IOBLOCKS_WRITE, MediaId, Lba, BufferSize, Buffer);\r | |
1bfda055 | 646 | }\r |
647 | \r | |
648 | EFI_STATUS\r | |
649 | EFIAPI\r | |
650 | MmcFlushBlocks (\r | |
651 | IN EFI_BLOCK_IO_PROTOCOL *This\r | |
e8e95df4 | 652 | )\r |
653 | {\r | |
654 | return EFI_SUCCESS;\r | |
1bfda055 | 655 | }\r |
656 | \r |