2 Main Header file for the MMC DXE driver
4 Copyright (c) 2011-2015, ARM Limited. All rights reserved.
6 This program and the accompanying materials
7 are licensed and made available under the terms and conditions of the BSD License
8 which accompanies this distribution. The full text of the license may be found at
9 http://opensource.org/licenses/bsd-license.php
11 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
12 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
21 #include <Protocol/DiskIo.h>
22 #include <Protocol/BlockIo.h>
23 #include <Protocol/DevicePath.h>
24 #include <Protocol/MmcHost.h>
26 #include <Library/UefiLib.h>
27 #include <Library/DebugLib.h>
28 #include <Library/UefiBootServicesTableLib.h>
30 #define MMC_TRACE(txt) DEBUG((EFI_D_BLKIO, "MMC: " txt "\n"))
32 #define MMC_IOBLOCKS_READ 0
33 #define MMC_IOBLOCKS_WRITE 1
35 #define MMC_OCR_POWERUP 0x80000000
37 #define MMC_OCR_ACCESS_MASK 0x3 /* bit[30-29] */
38 #define MMC_OCR_ACCESS_BYTE 0x1 /* bit[29] */
39 #define MMC_OCR_ACCESS_SECTOR 0x2 /* bit[30] */
41 #define MMC_CSD_GET_CCC(Response) (Response[2] >> 20)
42 #define MMC_CSD_GET_TRANSPEED(Response) (Response[3] & 0xFF)
43 #define MMC_CSD_GET_READBLLEN(Response) ((Response[2] >> 16) & 0xF)
44 #define MMC_CSD_GET_WRITEBLLEN(Response) ((Response[0] >> 22) & 0xF)
45 #define MMC_CSD_GET_FILEFORMAT(Response) ((Response[0] >> 10) & 0x3)
46 #define MMC_CSD_GET_FILEFORMATGRP(Response) ((Response[0] >> 15) & 0x1)
47 #define MMC_CSD_GET_DEVICESIZE(csd) (((Response[1] >> 30) & 0x3) | ((Response[2] & 0x3FF) << 2))
48 #define HC_MMC_CSD_GET_DEVICESIZE(Response) ((Response[1] >> 16) | ((Response[2] & 0x40) << 16));
49 #define MMC_CSD_GET_DEVICESIZEMULT(csd) ((Response[1] >> 15) & 0x7)
51 #define MMC_R0_READY_FOR_DATA (1 << 8)
53 #define MMC_R0_CURRENTSTATE(Response) ((Response[0] >> 9) & 0xF)
55 #define MMC_R0_STATE_IDLE 0
56 #define MMC_R0_STATE_READY 1
57 #define MMC_R0_STATE_IDENT 2
58 #define MMC_R0_STATE_STDBY 3
59 #define MMC_R0_STATE_TRAN 4
60 #define MMC_R0_STATE_DATA 5
62 #define EMMC_CMD6_ARG_ACCESS(x) (((x) & 0x3) << 24)
63 #define EMMC_CMD6_ARG_INDEX(x) (((x) & 0xFF) << 16)
64 #define EMMC_CMD6_ARG_VALUE(x) (((x) & 0xFF) << 8)
65 #define EMMC_CMD6_ARG_CMD_SET(x) (((x) & 0x7) << 0)
70 MMC_CARD_HIGH
, //MMC Card with High capacity
71 EMMC_CARD
, //eMMC 4.41 card
72 SD_CARD
, //SD 1.1 card
73 SD_CARD_2
, //SD 2.0 or above standard card
74 SD_CARD_2_HIGH
//SD 2.0 or above high capacity card
78 UINT32 Reserved0
: 7; // 0
79 UINT32 V170_V195
: 1; // 1.70V - 1.95V
80 UINT32 V200_V260
: 7; // 2.00V - 2.60V
81 UINT32 V270_V360
: 9; // 2.70V - 3.60V
82 UINT32 RESERVED_1
: 5; // Reserved
83 UINT32 AccessMode
: 2; // 00b (byte mode), 10b (sector mode)
84 UINT32 PowerUp
: 1; // This bit is set to LOW if the card has not finished the power up routine
88 UINT8 SD_SPEC
: 4; // SD Memory Card - Spec. Version [59:56]
89 UINT8 SCR_STRUCTURE
: 4; // SCR Structure [63:60]
90 UINT8 SD_BUS_WIDTHS
: 4; // DAT Bus widths supported [51:48]
91 UINT8 DATA_STAT_AFTER_ERASE
: 1; // Data Status after erases [55]
92 UINT8 SD_SECURITY
: 3; // CPRM Security Support [54:52]
93 UINT8 EX_SECURITY_1
: 1; // Extended Security Support [43]
94 UINT8 SD_SPEC4
: 1; // Spec. Version 4.00 or higher [42]
95 UINT8 RESERVED_1
: 2; // Reserved [41:40]
96 UINT8 SD_SPEC3
: 1; // Spec. Version 3.00 or higher [47]
97 UINT8 EX_SECURITY_2
: 3; // Extended Security Support [46:44]
98 UINT8 CMD_SUPPORT
: 4; // Command Support bits [35:32]
99 UINT8 RESERVED_2
: 4; // Reserved [39:36]
100 UINT32 RESERVED_3
; // Manufacturer Usage [31:0]
104 UINT32 NOT_USED
; // 1 [0:0]
105 UINT32 CRC
; // CRC7 checksum [7:1]
106 UINT32 MDT
; // Manufacturing date [19:8]
107 UINT32 RESERVED_1
; // Reserved [23:20]
108 UINT32 PSN
; // Product serial number [55:24]
109 UINT8 PRV
; // Product revision [63:56]
110 UINT8 PNM
[5]; // Product name [64:103]
111 UINT16 OID
; // OEM/Application ID [119:104]
112 UINT8 MID
; // Manufacturer ID [127:120]
116 UINT8 NOT_USED
: 1; // Not used, always 1 [0:0]
117 UINT8 CRC
: 7; // CRC [7:1]
119 UINT8 RESERVED_1
: 2; // Reserved [9:8]
120 UINT8 FILE_FORMAT
: 2; // File format [11:10]
121 UINT8 TMP_WRITE_PROTECT
: 1; // Temporary write protection [12:12]
122 UINT8 PERM_WRITE_PROTECT
: 1; // Permanent write protection [13:13]
123 UINT8 COPY
: 1; // Copy flag (OTP) [14:14]
124 UINT8 FILE_FORMAT_GRP
: 1; // File format group [15:15]
126 UINT16 RESERVED_2
: 5; // Reserved [20:16]
127 UINT16 WRITE_BL_PARTIAL
: 1; // Partial blocks for write allowed [21:21]
128 UINT16 WRITE_BL_LEN
: 4; // Max. write data block length [25:22]
129 UINT16 R2W_FACTOR
: 3; // Write speed factor [28:26]
130 UINT16 RESERVED_3
: 2; // Reserved [30:29]
131 UINT16 WP_GRP_ENABLE
: 1; // Write protect group enable [31:31]
133 UINT32 WP_GRP_SIZE
: 7; // Write protect group size [38:32]
134 UINT32 SECTOR_SIZE
: 7; // Erase sector size [45:39]
135 UINT32 ERASE_BLK_EN
: 1; // Erase single block enable [46:46]
136 UINT32 C_SIZE_MULT
: 3; // Device size multiplier [49:47]
137 UINT32 VDD_W_CURR_MAX
: 3; // Max. write current @ VDD max [52:50]
138 UINT32 VDD_W_CURR_MIN
: 3; // Max. write current @ VDD min [55:53]
139 UINT32 VDD_R_CURR_MAX
: 3; // Max. read current @ VDD max [58:56]
140 UINT32 VDD_R_CURR_MIN
: 3; // Max. read current @ VDD min [61:59]
141 UINT32 C_SIZELow2
: 2; // Device size [63:62]
143 UINT32 C_SIZEHigh10
: 10;// Device size [73:64]
144 UINT32 RESERVED_4
: 2; // Reserved [75:74]
145 UINT32 DSR_IMP
: 1; // DSR implemented [76:76]
146 UINT32 READ_BLK_MISALIGN
: 1; // Read block misalignment [77:77]
147 UINT32 WRITE_BLK_MISALIGN
: 1; // Write block misalignment [78:78]
148 UINT32 READ_BL_PARTIAL
: 1; // Partial blocks for read allowed [79:79]
149 UINT32 READ_BL_LEN
: 4; // Max. read data block length [83:80]
150 UINT32 CCC
: 12;// Card command classes [95:84]
152 UINT8 TRAN_SPEED
; // Max. bus clock frequency [103:96]
153 UINT8 NSAC
; // Data read access-time 2 in CLK cycles (NSAC*100) [111:104]
154 UINT8 TAAC
; // Data read access-time 1 [119:112]
156 UINT8 RESERVED_5
: 2; // Reserved [121:120]
157 UINT8 SPEC_VERS
: 4; // System specification version [125:122]
158 UINT8 CSD_STRUCTURE
: 2; // CSD structure [127:126]
162 UINT8 RESERVED_1
[16]; // Reserved [15:0]
163 UINT8 SECURE_REMOVAL_TYPE
; // Secure Removal Type [16:16]
164 UINT8 PRODUCT_STATE_AWARENESS_ENABLEMENT
; // Product state awareness enablement [17:17]
165 UINT8 MAX_PRE_LOADING_DATA_SIZE
[4]; // MAX pre loading data size [21:18]
166 UINT8 PRE_LOADING_DATA_SIZE
[4]; // Pre loading data size [25:22]
167 UINT8 FFU_STATUS
; // FFU Status [26:26]
168 UINT8 RESERVED_2
[2]; // Reserved [28:27]
169 UINT8 MODE_OPERATION_CODES
; // Mode operation codes [29:29]
170 UINT8 MODE_CONFIG
; // Mode config [30:30]
171 UINT8 RESERVED_3
; // Reserved [31:31]
172 UINT8 FLUSH_CACHE
; // Flushing of the cache [32:32]
173 UINT8 CACHE_CTRL
; // Control to turn the cache ON/OFF [33:33]
174 UINT8 POWER_OFF_NOTIFICATION
; // Power Off Notification [34:34]
175 UINT8 PACKED_FAILURE_INDEX
; // Packed command failure index [35:35]
176 UINT8 PACKED_COMMAND_STATUS
; // Packed command status [36:36]
177 UINT8 CONTEXT_CONF
[15]; // Context configuration [51:37]
178 UINT8 EXT_PARTITIONS_ATTRIBUTE
[2]; // Extended partitions attribute [53:52]
179 UINT8 EXCEPTION_EVENTS_STATUS
[2]; // Exception events status [55:54]
180 UINT8 EXCEPTION_EVENTS_CTRL
[2]; // Exception events control [57:56]
181 UINT8 DYNCAP_NEEDED
; // Number of addressed group to be released [58:58]
182 UINT8 CLASS_6_CTRL
; // Class 6 commands control [59:59]
183 UINT8 INI_TIMEOUT_EMU
; // 1st initialization after disabling sector size emulation [60:60]
184 UINT8 DATA_SECTOR_SIZE
; // Sector size [61:61]
185 UINT8 USE_NATIVE_SECTOR
; // Sector size emulation [62:62]
186 UINT8 NATIVE_SECTOR_SIZE
; // Native sector size [63:63]
187 UINT8 VENDOR_SPECIFIC_FIELD
[64]; // Vendor specific fields [127:64]
188 UINT8 RESERVED_4
[2]; // Reserved [129:128]
189 UINT8 PROGRAM_CID_CSD_DDR_SUPPORT
; // Program CID/CSD in DDR mode support [130:130]
190 UINT8 PERIODIC_WAKEUP
; // Periodic wake-up [131:131]
191 UINT8 TCASE_SUPPORT
; // Package case temperature is controlled [132:132]
192 UINT8 PRODUCTION_STATE_AWARENESS
; // Production state awareness [133:133]
193 UINT8 SECTOR_BAD_BLK_MGMNT
; // Bad block management mode [134:134]
194 UINT8 RESERVED_5
; // Reserved [135:135]
195 UINT8 ENH_START_ADDR
[4]; // Enhanced user data start address [139:136]
196 UINT8 ENH_SIZE_MULT
[3]; // Enhanced user data area size [142:140]
197 UINT8 GP_SIZE_MULT
[12]; // General purpose partition size [154:143]
198 UINT8 PARTITION_SETTING_COMPLETED
; // Partitioning setting [155:155]
199 UINT8 PARTITIONS_ATTRIBUTE
; // Partitions attribute [156:156]
200 UINT8 MAX_ENH_SIZE_MULT
[3]; // Max enhanced area size [159:157]
201 UINT8 PARTITIONING_SUPPORT
; // Partitioning [160:160]
202 UINT8 HPI_MGMT
; // HPI management [161:161]
203 UINT8 RST_N_FUNCTION
; // H/W reset function [162:162]
204 UINT8 BKOPS_EN
; // Enable background operations handshake [163:163]
205 UINT8 BKOPS_START
; // Manually start background operations [164:164]
206 UINT8 SANITIZE_START
; // Start sanitize operation [165:165]
207 UINT8 WR_REL_PARAM
; // Write reliability parameter register [166:166]
208 UINT8 WR_REL_SET
; // Write reliability setting register [167:167]
209 UINT8 RPMB_SIZE_MULT
; // RPMB size [168:168]
210 UINT8 FW_CONFIG
; // FW configuration [169:169]
211 UINT8 RESERVED_6
; // Reserved [170:170]
212 UINT8 USER_WP
; // User area write protection register [171:171]
213 UINT8 RESERVED_7
; // Reserved [172:172]
214 UINT8 BOOT_WP
; // Boot area write protection register [173:173]
215 UINT8 BOOT_WP_STATUS
; // Boot write protection register [174:174]
216 UINT8 ERASE_GROUP_DEF
; // High-density erase group definition [175:175]
217 UINT8 RESERVED_8
; // Reserved [176:176]
218 UINT8 BOOT_BUS_CONDITIONS
; // Boot bus conditions [177:177]
219 UINT8 BOOT_CONFIG_PROT
; // Boot config protection [178:178]
220 UINT8 PARTITION_CONFIG
; // Partition config [179:179]
221 UINT8 RESERVED_9
; // Reserved [180:180]
222 UINT8 ERASED_MEM_CONT
; // Erased memory content [181:181]
223 UINT8 RESERVED_10
; // Reserved [182:182]
224 UINT8 BUS_WIDTH
; // Bus width mode [183:183]
225 UINT8 RESERVED_11
; // Reserved [184:184]
226 UINT8 HS_TIMING
; // High-speed interface timing [185:185]
227 UINT8 RESERVED_12
; // Reserved [186:186]
228 UINT8 POWER_CLASS
; // Power class [187:187]
229 UINT8 RESERVED_13
; // Reserved [188:188]
230 UINT8 CMD_SET_REV
; // Command set revision [189:189]
231 UINT8 RESERVED_14
; // Reserved [190:190]
232 UINT8 CMD_SET
; // Command set [191:191]
233 UINT8 EXT_CSD_REV
; // Extended CSD revision [192:192]
234 UINT8 RESERVED_15
; // Reserved [193:193]
235 UINT8 CSD_STRUCTURE
; // CSD Structure [194:194]
236 UINT8 RESERVED_16
; // Reserved [195:195]
237 UINT8 DEVICE_TYPE
; // Device type [196:196]
238 UINT8 DRIVER_STRENGTH
; // I/O Driver strength [197:197]
239 UINT8 OUT_OF_INTERRUPT_TIME
; // Out-of-interrupt busy timing [198:198]
240 UINT8 PARTITION_SWITCH_TIME
; // Partition switching timing [199:199]
241 UINT8 PWR_CL_52_195
; // Power class for 52MHz at 1.95V 1 R [200:200]
242 UINT8 PWR_CL_26_195
; // Power class for 26MHz at 1.95V 1 R [201:201]
243 UINT8 PWR_CL_52_360
; // Power class for 52MHz at 3.6V 1 R [202:202]
244 UINT8 PWR_CL_26_360
; // Power class for 26MHz at 3.6V 1 R [203:203]
245 UINT8 RESERVED_17
; // Reserved [204:204]
246 UINT8 MIN_PERF_R_4_26
; // Minimum read performance for 4bit at 26MHz [205:205]
247 UINT8 MIN_PERF_W_4_26
; // Minimum write performance for 4bit at 26MHz [206:206]
248 UINT8 MIN_PERF_R_8_26_4_52
; // Minimum read performance for 8bit at 26MHz, for 4bit at 52MHz [207:207]
249 UINT8 MIN_PERF_W_8_26_4_52
; // Minimum write performance for 8bit at 26MHz, for 4bit at 52MHz [208:208]
250 UINT8 MIN_PERF_R_8_52
; // Minimum read performance for 8bit at 52MHz [209:209]
251 UINT8 MIN_PERF_W_8_52
; // Minimum write performance for 8bit at 52MHz [210:210]
252 UINT8 RESERVED_18
; // Reserved [211:211]
253 UINT32 SECTOR_COUNT
; // Sector count [215:212]
254 UINT8 SLEEP_NOTIFICATION_TIME
; // Sleep notification timout [216:216]
255 UINT8 S_A_TIMEOUT
; // Sleep/awake timeout [217:217]
256 UINT8 PRODUCTION_STATE_AWARENESS_TIMEOUT
; // Production state awareness timeout [218:218]
257 UINT8 S_C_VCCQ
; // Sleep current (VCCQ) [219:219]
258 UINT8 S_C_VCC
; // Sleep current (VCC) [220:220]
259 UINT8 HC_WP_GRP_SIZE
; // High-capacity write protect group size [221:221]
260 UINT8 REL_WR_SECTOR_C
; // Reliable write sector count [222:222]
261 UINT8 ERASE_TIMEOUT_MULT
; // High-capacity erase timeout [223:223]
262 UINT8 HC_ERASE_GRP_SIZE
; // High-capacity erase unit size [224:224]
263 UINT8 ACC_SIZE
; // Access size [225:225]
264 UINT8 BOOT_SIZE_MULTI
; // Boot partition size [226:226]
265 UINT8 RESERVED_19
; // Reserved [227:227]
266 UINT8 BOOT_INFO
; // Boot information [228:228]
267 UINT8 SECURE_TRIM_MULT
; // Secure TRIM Multiplier [229:229]
268 UINT8 SECURE_ERASE_MULT
; // Secure Erase Multiplier [230:230]
269 UINT8 SECURE_FEATURE_SUPPORT
; // Secure Feature Support [231:231]
270 UINT8 TRIM_MULT
; // TRIM Multiplier [232:232]
271 UINT8 RESERVED_20
; // Reserved [233:233]
272 UINT8 MIN_PREF_DDR_R_8_52
; // Minimum read performance for 8bit at 52MHz in DDR mode [234:234]
273 UINT8 MIN_PREF_DDR_W_8_52
; // Minimum write performance for 8bit at 52MHz in DDR mode [235:235]
274 UINT8 PWR_CL_200_130
; // Power class for 200MHz at VCCQ=1.3V, VCC=3.6V [236:236]
275 UINT8 PWR_CL_200_195
; // Power class for 200MHz at VCCQ=1.95V, VCC=3.6V [237:237]
276 UINT8 PWR_CL_DDR_52_195
; // Power class for 52MHz, DDR at 1.95V [238:238]
277 UINT8 PWR_CL_DDR_52_360
; // Power class for 52Mhz, DDR at 3.6V [239:239]
278 UINT8 RESERVED_21
; // Reserved [240:240]
279 UINT8 INI_TIMEOUT_AP
; // 1st initialization time after partitioning [241:241]
280 UINT8 CORRECTLY_PRG_SECTORS_NUM
[4]; // Number of correctly programmed sectors [245:242]
281 UINT8 BKOPS_STATUS
; // Background operations status [246:246]
282 UINT8 POWER_OFF_LONG_TIME
; // Power off notification (long) timeout [247:247]
283 UINT8 GENERIC_CMD6_TIME
; // Generic CMD6 timeout [248:248]
284 UINT8 CACHE_SIZE
[4]; // Cache size [252:249]
285 UINT8 PWR_CL_DDR_200_360
; // Power class for 200MHz, DDR at VCC=3.6V [253:253]
286 UINT8 FIRMWARE_VERSION
[8]; // Firmware version [261:254]
287 UINT8 DEVICE_VERSION
[2]; // Device version [263:262]
288 UINT8 OPTIMAL_TRIM_UNIT_SIZE
; // Optimal trim unit size [264:264]
289 UINT8 OPTIMAL_WRITE_SIZE
; // Optimal write size [265:265]
290 UINT8 OPTIMAL_READ_SIZE
; // Optimal read size [266:266]
291 UINT8 PRE_EOL_INFO
; // Pre EOL information [267:267]
292 UINT8 DEVICE_LIFE_TIME_EST_TYP_A
; // Device life time estimation type A [268:268]
293 UINT8 DEVICE_LIFE_TIME_EST_TYP_B
; // Device life time estimation type B [269:269]
294 UINT8 VENDOR_PROPRIETARY_HEALTH_REPORT
[32]; // Vendor proprietary health report [301:270]
295 UINT8 NUMBER_OF_FW_SECTORS_CORRECTLY_PROGRAMMED
[4]; // Number of FW sectors correctly programmed [305:302]
296 UINT8 RESERVED_22
[181]; // Reserved [486:306]
297 UINT8 FFU_ARG
[4]; // FFU argument [490:487]
298 UINT8 OPERATION_CODE_TIMEOUT
; // Operation codes timeout [491:491]
299 UINT8 FFU_FEATURES
; // FFU features [492:492]
300 UINT8 SUPPORTED_MODES
; // Supported modes [493:493]
301 UINT8 EXT_SUPPORT
; // Extended partitions attribute support [494:494]
302 UINT8 LARGE_UNIT_SIZE_M1
; // Large unit size [495:495]
303 UINT8 CONTEXT_CAPABILITIES
; // Context management capabilities [496:496]
304 UINT8 TAG_RES_SIZE
; // Tag resource size [497:497]
305 UINT8 TAG_UNIT_SIZE
; // Tag unit size [498:498]
306 UINT8 DATA_TAG_SUPPORT
; // Data tag support [499:499]
307 UINT8 MAX_PACKED_WRITES
; // Max packed write commands [500:500]
308 UINT8 MAX_PACKED_READS
; // Max packed read commands [501:501]
309 UINT8 BKOPS_SUPPORT
; // Background operations support [502:502]
310 UINT8 HPI_FEATURES
; // HPI features [503:503]
311 UINT8 S_CMD_SET
; // Supported command sets [504:504]
312 UINT8 EXT_SECURITY_ERR
; // Extended security commands error [505:505]
313 UINT8 RESERVED_23
[6]; // Reserved [511:506]
322 ECSD ECSDData
; // MMC V4 extended card specific
325 typedef struct _MMC_HOST_INSTANCE
{
328 EFI_HANDLE MmcHandle
;
329 EFI_DEVICE_PATH_PROTOCOL
*DevicePath
;
332 EFI_BLOCK_IO_PROTOCOL BlockIo
;
334 EFI_MMC_HOST_PROTOCOL
*MmcHost
;
339 #define MMC_HOST_INSTANCE_SIGNATURE SIGNATURE_32('m', 'm', 'c', 'h')
340 #define MMC_HOST_INSTANCE_FROM_BLOCK_IO_THIS(a) CR (a, MMC_HOST_INSTANCE, BlockIo, MMC_HOST_INSTANCE_SIGNATURE)
341 #define MMC_HOST_INSTANCE_FROM_LINK(a) CR (a, MMC_HOST_INSTANCE, Link, MMC_HOST_INSTANCE_SIGNATURE)
347 IN EFI_COMPONENT_NAME_PROTOCOL
*This
,
349 OUT CHAR16
**DriverName
354 MmcGetControllerName (
355 IN EFI_COMPONENT_NAME_PROTOCOL
*This
,
356 IN EFI_HANDLE ControllerHandle
,
357 IN EFI_HANDLE ChildHandle OPTIONAL
,
359 OUT CHAR16
**ControllerName
362 extern EFI_COMPONENT_NAME_PROTOCOL gMmcComponentName
;
363 extern EFI_COMPONENT_NAME2_PROTOCOL gMmcComponentName2
;
365 extern EFI_DRIVER_DIAGNOSTICS2_PROTOCOL gMmcDriverDiagnostics2
;
367 extern LIST_ENTRY mMmcHostPool
;
370 Reset the block device.
372 This function implements EFI_BLOCK_IO_PROTOCOL.Reset().
373 It resets the block device hardware.
374 ExtendedVerification is ignored in this implementation.
376 @param This Indicates a pointer to the calling context.
377 @param ExtendedVerification Indicates that the driver may perform a more exhaustive
378 verification operation of the device during reset.
380 @retval EFI_SUCCESS The block device was reset.
381 @retval EFI_DEVICE_ERROR The block device is not functioning correctly and could not be reset.
387 IN EFI_BLOCK_IO_PROTOCOL
*This
,
388 IN BOOLEAN ExtendedVerification
392 Reads the requested number of blocks from the device.
394 This function implements EFI_BLOCK_IO_PROTOCOL.ReadBlocks().
395 It reads the requested number of blocks from the device.
396 All the blocks are read, or an error is returned.
398 @param This Indicates a pointer to the calling context.
399 @param MediaId The media ID that the read request is for.
400 @param Lba The starting logical block address to read from on the device.
401 @param BufferSize The size of the Buffer in bytes.
402 This must be a multiple of the intrinsic block size of the device.
403 @param Buffer A pointer to the destination buffer for the data. The caller is
404 responsible for either having implicit or explicit ownership of the buffer.
406 @retval EFI_SUCCESS The data was read correctly from the device.
407 @retval EFI_DEVICE_ERROR The device reported an error while attempting to perform the read operation.
408 @retval EFI_NO_MEDIA There is no media in the device.
409 @retval EFI_MEDIA_CHANGED The MediaId is not for the current media.
410 @retval EFI_BAD_BUFFER_SIZE The BufferSize parameter is not a multiple of the intrinsic block size of the device.
411 @retval EFI_INVALID_PARAMETER The read request contains LBAs that are not valid,
412 or the buffer is not on proper alignment.
418 IN EFI_BLOCK_IO_PROTOCOL
*This
,
426 Writes a specified number of blocks to the device.
428 This function implements EFI_BLOCK_IO_PROTOCOL.WriteBlocks().
429 It writes a specified number of blocks to the device.
430 All blocks are written, or an error is returned.
432 @param This Indicates a pointer to the calling context.
433 @param MediaId The media ID that the write request is for.
434 @param Lba The starting logical block address to be written.
435 @param BufferSize The size of the Buffer in bytes.
436 This must be a multiple of the intrinsic block size of the device.
437 @param Buffer Pointer to the source buffer for the data.
439 @retval EFI_SUCCESS The data were written correctly to the device.
440 @retval EFI_WRITE_PROTECTED The device cannot be written to.
441 @retval EFI_NO_MEDIA There is no media in the device.
442 @retval EFI_MEDIA_CHANGED The MediaId is not for the current media.
443 @retval EFI_DEVICE_ERROR The device reported an error while attempting to perform the write operation.
444 @retval EFI_BAD_BUFFER_SIZE The BufferSize parameter is not a multiple of the intrinsic
445 block size of the device.
446 @retval EFI_INVALID_PARAMETER The write request contains LBAs that are not valid,
447 or the buffer is not on proper alignment.
453 IN EFI_BLOCK_IO_PROTOCOL
*This
,
461 Flushes all modified data to a physical block device.
463 @param This Indicates a pointer to the calling context.
465 @retval EFI_SUCCESS All outstanding data were written correctly to the device.
466 @retval EFI_DEVICE_ERROR The device reported an error while attempting to write data.
467 @retval EFI_NO_MEDIA There is no media in the device.
473 IN EFI_BLOCK_IO_PROTOCOL
*This
478 IN MMC_HOST_INSTANCE
*MmcHostInstance
,
483 InitializeMmcDevice (
484 IN MMC_HOST_INSTANCE
*MmcHost