]>
Commit | Line | Data |
---|---|---|
1bfda055 | 1 | /** @file\r |
2 | *\r | |
eff98cf9 | 3 | * Copyright (c) 2011-2015, 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 |
1bfda055 | 16 | \r |
17 | #include "Mmc.h"\r | |
18 | \r | |
1bfda055 | 19 | EFI_STATUS\r |
20 | MmcNotifyState (\r | |
e8e95df4 | 21 | IN MMC_HOST_INSTANCE *MmcHostInstance,\r |
22 | IN MMC_STATE State\r | |
23 | )\r | |
24 | {\r | |
25 | MmcHostInstance->State = State;\r | |
16d88c2d | 26 | return MmcHostInstance->MmcHost->NotifyState (MmcHostInstance->MmcHost, State);\r |
1bfda055 | 27 | }\r |
28 | \r | |
a1ab9143 | 29 | EFI_STATUS\r |
30 | EFIAPI\r | |
842b02d8 | 31 | MmcGetCardStatus (\r |
4ca3c688 | 32 | IN MMC_HOST_INSTANCE *MmcHostInstance\r |
e8e95df4 | 33 | )\r |
34 | {\r | |
35 | EFI_STATUS Status;\r | |
36 | UINT32 Response[4];\r | |
37 | UINTN CmdArg;\r | |
38 | EFI_MMC_HOST_PROTOCOL *MmcHost;\r | |
39 | \r | |
40 | Status = EFI_SUCCESS;\r | |
41 | MmcHost = MmcHostInstance->MmcHost;\r | |
42 | CmdArg = 0;\r | |
43 | \r | |
44 | if (MmcHost == NULL) {\r | |
45 | return EFI_INVALID_PARAMETER;\r | |
46 | }\r | |
842b02d8 | 47 | if (MmcHostInstance->State != MmcHwInitializationState) {\r |
e8e95df4 | 48 | //Get the Status of the card.\r |
49 | CmdArg = MmcHostInstance->CardInfo.RCA << 16;\r | |
16d88c2d | 50 | Status = MmcHost->SendCommand (MmcHost, MMC_CMD13, CmdArg);\r |
6f711615 | 51 | if (EFI_ERROR (Status)) {\r |
52 | DEBUG ((EFI_D_ERROR, "MmcGetCardStatus(MMC_CMD13): Error and Status = %r\n", Status));\r | |
e8e95df4 | 53 | return Status;\r |
a1ab9143 | 54 | }\r |
55 | \r | |
e8e95df4 | 56 | //Read Response\r |
6f711615 | 57 | MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_R1, Response);\r |
58 | PrintResponseR1 (Response[0]);\r | |
e8e95df4 | 59 | }\r |
60 | \r | |
61 | return Status;\r | |
1bfda055 | 62 | }\r |
63 | \r | |
1bfda055 | 64 | EFI_STATUS\r |
65 | EFIAPI\r | |
66 | MmcReset (\r | |
67 | IN EFI_BLOCK_IO_PROTOCOL *This,\r | |
68 | IN BOOLEAN ExtendedVerification\r | |
e8e95df4 | 69 | )\r |
70 | {\r | |
3de99375 | 71 | MMC_HOST_INSTANCE *MmcHostInstance;\r |
72 | \r | |
6f711615 | 73 | MmcHostInstance = MMC_HOST_INSTANCE_FROM_BLOCK_IO_THIS (This);\r |
3de99375 | 74 | \r |
75 | if (MmcHostInstance->MmcHost == NULL) {\r | |
76 | // Nothing to do\r | |
77 | return EFI_SUCCESS;\r | |
78 | }\r | |
79 | \r | |
80 | // If a card is not present then clear all media settings\r | |
16d88c2d | 81 | if (!MmcHostInstance->MmcHost->IsCardPresent (MmcHostInstance->MmcHost)) {\r |
3de99375 | 82 | MmcHostInstance->BlockIo.Media->MediaPresent = FALSE;\r |
83 | MmcHostInstance->BlockIo.Media->LastBlock = 0;\r | |
84 | MmcHostInstance->BlockIo.Media->BlockSize = 512; // Should be zero but there is a bug in DiskIo\r | |
85 | MmcHostInstance->BlockIo.Media->ReadOnly = FALSE;\r | |
86 | \r | |
87 | // Indicate that the driver requires initialization\r | |
88 | MmcHostInstance->State = MmcHwInitializationState;\r | |
89 | \r | |
90 | return EFI_SUCCESS;\r | |
91 | }\r | |
92 | \r | |
e8e95df4 | 93 | // Implement me. Either send a CMD0 (could not work for some MMC host) or just turn off/turn\r |
94 | // on power and restart Identification mode\r | |
95 | return EFI_SUCCESS;\r | |
1bfda055 | 96 | }\r |
97 | \r | |
98 | EFI_STATUS\r | |
99 | MmcDetectCard (\r | |
100 | EFI_MMC_HOST_PROTOCOL *MmcHost\r | |
101 | )\r | |
102 | {\r | |
16d88c2d | 103 | if (!MmcHost->IsCardPresent (MmcHost)) {\r |
e8e95df4 | 104 | return EFI_NO_MEDIA;\r |
105 | } else {\r | |
106 | return EFI_SUCCESS;\r | |
107 | }\r | |
1bfda055 | 108 | }\r |
109 | \r | |
9532373b OM |
110 | EFI_STATUS\r |
111 | MmcStopTransmission (\r | |
112 | EFI_MMC_HOST_PROTOCOL *MmcHost\r | |
113 | )\r | |
114 | {\r | |
115 | EFI_STATUS Status;\r | |
116 | UINT32 Response[4];\r | |
117 | // Command 12 - Stop transmission (ends read or write)\r | |
118 | // Normally only needed for streaming transfers or after error.\r | |
119 | Status = MmcHost->SendCommand (MmcHost, MMC_CMD12, 0);\r | |
120 | if (!EFI_ERROR (Status)) {\r | |
121 | MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_R1b, Response);\r | |
122 | }\r | |
123 | return Status;\r | |
124 | }\r | |
125 | \r | |
1bfda055 | 126 | #define MMCI0_BLOCKLEN 512\r |
127 | #define MMCI0_TIMEOUT 10000\r | |
128 | \r | |
e8e95df4 | 129 | EFI_STATUS\r |
130 | MmcIoBlocks (\r | |
1bfda055 | 131 | IN EFI_BLOCK_IO_PROTOCOL *This,\r |
132 | IN UINTN Transfer,\r | |
133 | IN UINT32 MediaId,\r | |
134 | IN EFI_LBA Lba,\r | |
135 | IN UINTN BufferSize,\r | |
136 | OUT VOID *Buffer\r | |
e8e95df4 | 137 | )\r |
138 | {\r | |
139 | UINT32 Response[4];\r | |
140 | EFI_STATUS Status;\r | |
40842a5e | 141 | UINTN CmdArg;\r |
969ece79 | 142 | INTN Timeout;\r |
e8e95df4 | 143 | UINTN Cmd;\r |
144 | MMC_HOST_INSTANCE *MmcHostInstance;\r | |
145 | EFI_MMC_HOST_PROTOCOL *MmcHost;\r | |
146 | UINTN BytesRemainingToBeTransfered;\r | |
842b02d8 | 147 | UINTN BlockCount;\r |
e8e95df4 | 148 | \r |
842b02d8 | 149 | BlockCount = 1;\r |
6f711615 | 150 | MmcHostInstance = MMC_HOST_INSTANCE_FROM_BLOCK_IO_THIS (This);\r |
842b02d8 | 151 | ASSERT (MmcHostInstance != NULL);\r |
e8e95df4 | 152 | MmcHost = MmcHostInstance->MmcHost;\r |
6f711615 | 153 | ASSERT (MmcHost);\r |
e8e95df4 | 154 | \r |
5ab765a7 | 155 | if (This->Media->MediaId != MediaId) {\r |
156 | return EFI_MEDIA_CHANGED;\r | |
157 | }\r | |
158 | \r | |
842b02d8 | 159 | if ((MmcHost == NULL) || (Buffer == NULL)) {\r |
e8e95df4 | 160 | return EFI_INVALID_PARAMETER;\r |
161 | }\r | |
162 | \r | |
163 | // Check if a Card is Present\r | |
3de99375 | 164 | if (!MmcHostInstance->BlockIo.Media->MediaPresent) {\r |
e8e95df4 | 165 | return EFI_NO_MEDIA;\r |
166 | }\r | |
167 | \r | |
969ece79 | 168 | // All blocks must be within the device\r |
842b02d8 | 169 | if ((Lba + (BufferSize / This->Media->BlockSize)) > (This->Media->LastBlock + 1)) {\r |
969ece79 | 170 | return EFI_INVALID_PARAMETER;\r |
e8e95df4 | 171 | }\r |
172 | \r | |
842b02d8 | 173 | if ((Transfer == MMC_IOBLOCKS_WRITE) && (This->Media->ReadOnly == TRUE)) {\r |
5ab765a7 | 174 | return EFI_WRITE_PROTECTED;\r |
969ece79 | 175 | }\r |
176 | \r | |
5ab765a7 | 177 | // Reading 0 Byte is valid\r |
178 | if (BufferSize == 0) {\r | |
179 | return EFI_SUCCESS;\r | |
969ece79 | 180 | }\r |
181 | \r | |
5ab765a7 | 182 | // The buffer size must be an exact multiple of the block size\r |
183 | if ((BufferSize % This->Media->BlockSize) != 0) {\r | |
184 | return EFI_BAD_BUFFER_SIZE;\r | |
185 | }\r | |
186 | \r | |
187 | // Check the alignment\r | |
188 | if ((This->Media->IoAlign > 2) && (((UINTN)Buffer & (This->Media->IoAlign - 1)) != 0)) {\r | |
189 | return EFI_INVALID_PARAMETER;\r | |
e8e95df4 | 190 | }\r |
191 | \r | |
192 | BytesRemainingToBeTransfered = BufferSize;\r | |
193 | while (BytesRemainingToBeTransfered > 0) {\r | |
194 | \r | |
195 | // Check if the Card is in Ready status\r | |
196 | CmdArg = MmcHostInstance->CardInfo.RCA << 16;\r | |
197 | Response[0] = 0;\r | |
198 | Timeout = 20;\r | |
260675b0 | 199 | while( (!(Response[0] & MMC_R0_READY_FOR_DATA))\r |
6f711615 | 200 | && (MMC_R0_CURRENTSTATE (Response) != MMC_R0_STATE_TRAN)\r |
260675b0 | 201 | && Timeout--) {\r |
16d88c2d | 202 | Status = MmcHost->SendCommand (MmcHost, MMC_CMD13, CmdArg);\r |
6f711615 | 203 | if (!EFI_ERROR (Status)) {\r |
204 | MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_R1, Response);\r | |
e8e95df4 | 205 | }\r |
1bfda055 | 206 | }\r |
207 | \r | |
e8e95df4 | 208 | if (0 == Timeout) {\r |
6f711615 | 209 | DEBUG ((EFI_D_ERROR, "The Card is busy\n"));\r |
e8e95df4 | 210 | return EFI_NOT_READY;\r |
b9d5fe03 | 211 | }\r |
212 | \r | |
e8e95df4 | 213 | //Set command argument based on the card access mode (Byte mode or Block mode)\r |
214 | if (MmcHostInstance->CardInfo.OCRData.AccessMode & BIT1) {\r | |
215 | CmdArg = Lba;\r | |
216 | } else {\r | |
217 | CmdArg = Lba * This->Media->BlockSize;\r | |
218 | }\r | |
1bfda055 | 219 | \r |
e8e95df4 | 220 | if (Transfer == MMC_IOBLOCKS_READ) {\r |
e8e95df4 | 221 | // Read a single block\r |
222 | Cmd = MMC_CMD17;\r | |
e8e95df4 | 223 | } else {\r |
e8e95df4 | 224 | // Write a single block\r |
225 | Cmd = MMC_CMD24;\r | |
e8e95df4 | 226 | }\r |
16d88c2d | 227 | Status = MmcHost->SendCommand (MmcHost, Cmd, CmdArg);\r |
6f711615 | 228 | if (EFI_ERROR (Status)) {\r |
229 | DEBUG ((EFI_D_ERROR, "MmcIoBlocks(MMC_CMD%d): Error %r\n", Cmd, Status));\r | |
e8e95df4 | 230 | return Status;\r |
231 | }\r | |
1bfda055 | 232 | \r |
e8e95df4 | 233 | if (Transfer == MMC_IOBLOCKS_READ) {\r |
e8e95df4 | 234 | // Read one block of Data\r |
6f711615 | 235 | Status = MmcHost->ReadBlockData (MmcHost, Lba, This->Media->BlockSize, Buffer);\r |
236 | if (EFI_ERROR (Status)) {\r | |
237 | DEBUG ((EFI_D_BLKIO, "MmcIoBlocks(): Error Read Block Data and Status = %r\n", Status));\r | |
9532373b | 238 | MmcStopTransmission (MmcHost);\r |
e8e95df4 | 239 | return Status;\r |
240 | }\r | |
e8e95df4 | 241 | Status = MmcNotifyState (MmcHostInstance, MmcProgrammingState);\r |
6f711615 | 242 | if (EFI_ERROR (Status)) {\r |
243 | DEBUG ((EFI_D_ERROR, "MmcIoBlocks() : Error MmcProgrammingState\n"));\r | |
e8e95df4 | 244 | return Status;\r |
245 | }\r | |
246 | } else {\r | |
e8e95df4 | 247 | // Write one block of Data\r |
6f711615 | 248 | Status = MmcHost->WriteBlockData (MmcHost, Lba, This->Media->BlockSize, Buffer);\r |
249 | if (EFI_ERROR (Status)) {\r | |
250 | DEBUG ((EFI_D_BLKIO, "MmcIoBlocks(): Error Write Block Data and Status = %r\n", Status));\r | |
9532373b | 251 | MmcStopTransmission (MmcHost);\r |
e8e95df4 | 252 | return Status;\r |
253 | }\r | |
e8e95df4 | 254 | }\r |
1bfda055 | 255 | \r |
e8e95df4 | 256 | // Command 13 - Read status and wait for programming to complete (return to tran)\r |
257 | Timeout = MMCI0_TIMEOUT;\r | |
258 | CmdArg = MmcHostInstance->CardInfo.RCA << 16;\r | |
259 | Response[0] = 0;\r | |
260675b0 | 260 | while( (!(Response[0] & MMC_R0_READY_FOR_DATA))\r |
6f711615 | 261 | && (MMC_R0_CURRENTSTATE (Response) != MMC_R0_STATE_TRAN)\r |
260675b0 | 262 | && Timeout--) {\r |
16d88c2d | 263 | Status = MmcHost->SendCommand (MmcHost, MMC_CMD13, CmdArg);\r |
6f711615 | 264 | if (!EFI_ERROR (Status)) {\r |
699e34ad | 265 | MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_R1, Response);\r |
266 | if ((Response[0] & MMC_R0_READY_FOR_DATA)) {\r | |
267 | break; // Prevents delay once finished\r | |
268 | }\r | |
e8e95df4 | 269 | }\r |
eff98cf9 | 270 | gBS->Stall (1);\r |
e8e95df4 | 271 | }\r |
1bfda055 | 272 | \r |
e8e95df4 | 273 | Status = MmcNotifyState (MmcHostInstance, MmcTransferState);\r |
6f711615 | 274 | if (EFI_ERROR (Status)) {\r |
275 | DEBUG ((EFI_D_ERROR, "MmcIoBlocks() : Error MmcTransferState\n"));\r | |
e8e95df4 | 276 | return Status;\r |
1bfda055 | 277 | }\r |
278 | \r | |
e8e95df4 | 279 | BytesRemainingToBeTransfered -= This->Media->BlockSize;\r |
280 | Lba += BlockCount;\r | |
281 | Buffer = (UINT8 *)Buffer + This->Media->BlockSize;\r | |
282 | }\r | |
283 | \r | |
284 | return EFI_SUCCESS;\r | |
1bfda055 | 285 | }\r |
286 | \r | |
287 | EFI_STATUS\r | |
288 | EFIAPI\r | |
289 | MmcReadBlocks (\r | |
290 | IN EFI_BLOCK_IO_PROTOCOL *This,\r | |
291 | IN UINT32 MediaId,\r | |
292 | IN EFI_LBA Lba,\r | |
293 | IN UINTN BufferSize,\r | |
294 | OUT VOID *Buffer\r | |
e8e95df4 | 295 | )\r |
296 | {\r | |
297 | return MmcIoBlocks (This, MMC_IOBLOCKS_READ, MediaId, Lba, BufferSize, Buffer);\r | |
1bfda055 | 298 | }\r |
299 | \r | |
300 | EFI_STATUS\r | |
301 | EFIAPI\r | |
302 | MmcWriteBlocks (\r | |
303 | IN EFI_BLOCK_IO_PROTOCOL *This,\r | |
304 | IN UINT32 MediaId,\r | |
305 | IN EFI_LBA Lba,\r | |
306 | IN UINTN BufferSize,\r | |
307 | IN VOID *Buffer\r | |
e8e95df4 | 308 | )\r |
309 | {\r | |
310 | return MmcIoBlocks (This, MMC_IOBLOCKS_WRITE, MediaId, Lba, BufferSize, Buffer);\r | |
1bfda055 | 311 | }\r |
312 | \r | |
313 | EFI_STATUS\r | |
314 | EFIAPI\r | |
315 | MmcFlushBlocks (\r | |
316 | IN EFI_BLOCK_IO_PROTOCOL *This\r | |
e8e95df4 | 317 | )\r |
318 | {\r | |
319 | return EFI_SUCCESS;\r | |
1bfda055 | 320 | }\r |