[mirror_edk2.git] / ArmPkg / Universal / MmcDxe / Mmc.h

/** @file\r
  Main Header file for the MMC DXE driver\r
\r
  Copyright (c) 2011, ARM Limited. All rights reserved.\r
  \r
  This program and the accompanying materials                          \r
  are licensed and made available under the terms and conditions of the BSD License         \r
  which accompanies this distribution.  The full text of the license may be found at        \r
  http://opensource.org/licenses/bsd-license.php                                            \r
\r
  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     \r
  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             \r
\r
**/\r
\r
#ifndef __MMC_H\r
#define __MMC_H\r
\r
#include <Uefi.h>\r
\r
#include <Protocol/DiskIo.h>\r
#include <Protocol/BlockIo.h>\r
#include <Protocol/DevicePath.h>\r
#include <Protocol/MmcHost.h>\r
\r
#include <Library/UefiLib.h>\r
\r
#define MMC_TRACE(txt)  DEBUG((EFI_D_BLKIO, "MMC: " txt "\n"))\r
\r
#define MMC_IOBLOCKS_READ       0\r
#define MMC_IOBLOCKS_WRITE      1\r
\r
#define MMC_OCR_POWERUP             0x80000000\r
\r
#define MMC_CSD_GET_CCC(Response)    (Response[1] >> 20)\r
#define MMC_CSD_GET_TRANSPEED(Response)    (Response[0] & 0xFF)\r
#define MMC_CSD_GET_READBLLEN(Response)    ((Response[1] >> 16) & 0xF)\r
#define MMC_CSD_GET_WRITEBLLEN(Response)  ((Response[3] >> 22) & 0xF)\r
#define MMC_CSD_GET_FILEFORMAT(Response)  ((Response[3] >> 10) & 0x3)\r
#define MMC_CSD_GET_FILEFORMATGRP(Response)  ((Response[3] >> 15) & 0x1)\r
#define MMC_CSD_GET_DEVICESIZE(csd)         (((Response[2] >> 30) & 0x3) | ((Response[1] & 0x3FF) << 2))\r
#define MMC_CSD_GET_DEVICESIZEMULT(csd)     ((Response[2] >> 15) & 0x7)\r
\r
#define MMC_R0_CURRENTSTATE(Response)       ((Response[0] >> 9) & 0xF)\r
\r
#define MMC_R0_STATE_IDLE       0\r
#define MMC_R0_STATE_READY      1\r
#define MMC_R0_STATE_IDENT      2\r
#define MMC_R0_STATE_STDBY      3\r
#define MMC_R0_STATE_TRAN       4\r
#define MMC_R0_STATE_DATA       5\r
\r
typedef enum {\r
  UNKNOWN_CARD,\r
  MMC_CARD,              //MMC card\r
  MMC_CARD_HIGH,         //MMC Card with High capacity\r
  SD_CARD,               //SD 1.1 card\r
  SD_CARD_2,             //SD 2.0 or above standard card\r
  SD_CARD_2_HIGH         //SD 2.0 or above high capacity card\r
} CARD_TYPE;\r
\r
typedef struct {\r
  UINT32  Reserved0:   7; // 0 \r
  UINT32  V170_V195:   1; // 1.70V - 1.95V\r
  UINT32  V200_V260:   7; // 2.00V - 2.60V\r
  UINT32  V270_V360:   9; // 2.70V - 3.60V\r
  UINT32  RESERVED_1:  5; // Reserved\r
  UINT32  AccessMode:  2; // 00b (byte mode), 10b (sector mode) \r
  UINT32  Busy:        1; // This bit is set to LOW if the card has not finished the power up routine\r
} OCR;\r
\r
typedef struct {\r
  UINT32  NOT_USED;   // 1 [0:0]\r
  UINT32  CRC;        // CRC7 checksum [7:1]\r
  UINT32  MDT;        // Manufacturing date [19:8]\r
  UINT32  RESERVED_1; // Reserved [23:20]\r
  UINT32  PSN;        // Product serial number [55:24]\r
  UINT8   PRV;        // Product revision [63:56]\r
  UINT8   PNM[5];     // Product name [64:103]\r
  UINT16  OID;        // OEM/Application ID [119:104]\r
  UINT8   MID;        // Manufacturer ID [127:120]\r
} CID;\r
\r
typedef struct {\r
  UINT8   NOT_USED:           1; // Not used, always 1 [0:0]\r
  UINT8   CRC:                7; // CRC [7:1]\r
\r
  UINT8   RESERVED_1:         2; // Reserved [9:8]\r
  UINT8   FILE_FORMAT:        2; // File format [11:10]\r
  UINT8   TMP_WRITE_PROTECT:  1; // Temporary write protection [12:12]\r
  UINT8   PERM_WRITE_PROTECT: 1; // Permanent write protection [13:13]\r
  UINT8   COPY:               1; // Copy flag (OTP) [14:14]\r
  UINT8   FILE_FORMAT_GRP:    1; // File format group [15:15]\r
  \r
  UINT16  RESERVED_2:         5; // Reserved [20:16]\r
  UINT16  WRITE_BL_PARTIAL:   1; // Partial blocks for write allowed [21:21]\r
  UINT16  WRITE_BL_LEN:       4; // Max. write data block length [25:22]\r
  UINT16  R2W_FACTOR:         3; // Write speed factor [28:26]\r
  UINT16  RESERVED_3:         2; // Reserved [30:29]\r
  UINT16  WP_GRP_ENABLE:      1; // Write protect group enable [31:31]\r
  \r
  UINT32  WP_GRP_SIZE:        7; // Write protect group size [38:32]\r
  UINT32  SECTOR_SIZE:        7; // Erase sector size [45:39]\r
  UINT32  ERASE_BLK_EN:       1; // Erase single block enable [46:46]\r
  UINT32  C_SIZE_MULT:        3; // Device size multiplier [49:47]\r
  UINT32  VDD_W_CURR_MAX:     3; // Max. write current @ VDD max [52:50]\r
  UINT32  VDD_W_CURR_MIN:     3; // Max. write current @ VDD min [55:53]\r
  UINT32  VDD_R_CURR_MAX:     3; // Max. read current @ VDD max [58:56]\r
  UINT32  VDD_R_CURR_MIN:     3; // Max. read current @ VDD min [61:59]\r
  UINT32  C_SIZELow2:         2; // Device size [63:62]\r
  \r
  UINT32  C_SIZEHigh10:       10;// Device size [73:64]\r
  UINT32  RESERVED_4:         2; // Reserved [75:74]\r
  UINT32  DSR_IMP:            1; // DSR implemented [76:76]\r
  UINT32  READ_BLK_MISALIGN:  1; // Read block misalignment [77:77]\r
  UINT32  WRITE_BLK_MISALIGN: 1; // Write block misalignment [78:78]\r
  UINT32  READ_BL_PARTIAL:    1; // Partial blocks for read allowed [79:79]\r
  UINT32  READ_BL_LEN:        4; // Max. read data block length [83:80]\r
  UINT32  CCC:                12;// Card command classes [95:84]\r
\r
  UINT8   TRAN_SPEED          ;  // Max. bus clock frequency [103:96]\r
  UINT8   NSAC                ;  // Data read access-time 2 in CLK cycles (NSAC*100) [111:104]\r
  UINT8   TAAC                ;  // Data read access-time 1 [119:112]\r
  \r
  UINT8   RESERVED_5:         6; // Reserved [125:120]\r
  UINT8   CSD_STRUCTURE:      2; // CSD structure [127:126]\r
} CSD;\r
\r
typedef struct  {\r
  UINT16    RCA;\r
  CARD_TYPE CardType;\r
  OCR       OCRData;\r
  CID       CIDData;\r
  CSD       CSDData;\r
} CARD_INFO;\r
\r
typedef struct _MMC_HOST_INSTANCE {\r
  UINTN                     Signature;\r
  LIST_ENTRY                Link;\r
  EFI_HANDLE                MmcHandle;\r
  EFI_DEVICE_PATH_PROTOCOL  *DevicePath;\r
\r
  MMC_STATE                 State;\r
  EFI_BLOCK_IO_PROTOCOL     BlockIo;\r
  CARD_INFO                 CardInfo;\r
  EFI_MMC_HOST_PROTOCOL     *MmcHost;\r
} MMC_HOST_INSTANCE;\r
\r
#define MMC_HOST_INSTANCE_SIGNATURE                 SIGNATURE_32('m', 'm', 'c', 'h')\r
#define MMC_HOST_INSTANCE_FROM_BLOCK_IO_THIS(a)     CR (a, MMC_HOST_INSTANCE, BlockIo, MMC_HOST_INSTANCE_SIGNATURE)\r
#define MMC_HOST_INSTANCE_FROM_LINK(a)              CR (a, MMC_HOST_INSTANCE, Link, MMC_HOST_INSTANCE_SIGNATURE)\r
\r
\r
EFI_STATUS\r
EFIAPI\r
MmcGetDriverName (\r
  IN  EFI_COMPONENT_NAME_PROTOCOL  *This,\r
  IN  CHAR8                        *Language,\r
  OUT CHAR16                       **DriverName\r
  );\r
\r
EFI_STATUS\r
EFIAPI\r
MmcGetControllerName (\r
  IN  EFI_COMPONENT_NAME_PROTOCOL                     *This,\r
  IN  EFI_HANDLE                                      ControllerHandle,\r
  IN  EFI_HANDLE                                      ChildHandle        OPTIONAL,\r
  IN  CHAR8                                           *Language,\r
  OUT CHAR16                                          **ControllerName\r
  );\r
\r
extern EFI_COMPONENT_NAME_PROTOCOL  gMmcComponentName;\r
extern EFI_COMPONENT_NAME2_PROTOCOL gMmcComponentName2;\r
\r
extern EFI_DRIVER_DIAGNOSTICS2_PROTOCOL gMmcDriverDiagnostics2;\r
\r
extern LIST_ENTRY mMmcHostPool;\r
\r
/**\r
  Reset the block device.\r
\r
  This function implements EFI_BLOCK_IO_PROTOCOL.Reset(). \r
  It resets the block device hardware.\r
  ExtendedVerification is ignored in this implementation.\r
\r
  @param  This                   Indicates a pointer to the calling context.\r
  @param  ExtendedVerification   Indicates that the driver may perform a more exhaustive\r
                                 verification operation of the device during reset.\r
\r
  @retval EFI_SUCCESS            The block device was reset.\r
  @retval EFI_DEVICE_ERROR       The block device is not functioning correctly and could not be reset.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
MmcReset (\r
  IN EFI_BLOCK_IO_PROTOCOL    *This,\r
  IN BOOLEAN                  ExtendedVerification\r
  );\r
\r
/**\r
  Reads the requested number of blocks from the device.\r
\r
  This function implements EFI_BLOCK_IO_PROTOCOL.ReadBlocks(). \r
  It reads the requested number of blocks from the device.\r
  All the blocks are read, or an error is returned.\r
\r
  @param  This                   Indicates a pointer to the calling context.\r
  @param  MediaId                The media ID that the read request is for.\r
  @param  Lba                    The starting logical block address to read from on the device.\r
  @param  BufferSize             The size of the Buffer in bytes.\r
                                 This must be a multiple of the intrinsic block size of the device.\r
  @param  Buffer                 A pointer to the destination buffer for the data. The caller is\r
                                 responsible for either having implicit or explicit ownership of the buffer.\r
\r
  @retval EFI_SUCCESS            The data was read correctly from the device.\r
  @retval EFI_DEVICE_ERROR       The device reported an error while attempting to perform the read operation.\r
  @retval EFI_NO_MEDIA           There is no media in the device.\r
  @retval EFI_MEDIA_CHANGED      The MediaId is not for the current media.\r
  @retval EFI_BAD_BUFFER_SIZE    The BufferSize parameter is not a multiple of the intrinsic block size of the device.\r
  @retval EFI_INVALID_PARAMETER  The read request contains LBAs that are not valid,\r
                                 or the buffer is not on proper alignment.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
MmcReadBlocks (\r
  IN EFI_BLOCK_IO_PROTOCOL    *This,\r
  IN UINT32                   MediaId,\r
  IN EFI_LBA                  Lba,\r
  IN UINTN                    BufferSize,\r
  OUT VOID                    *Buffer\r
  );\r
\r
/**\r
  Writes a specified number of blocks to the device.\r
\r
  This function implements EFI_BLOCK_IO_PROTOCOL.WriteBlocks(). \r
  It writes a specified number of blocks to the device.\r
  All blocks are written, or an error is returned.\r
\r
  @param  This                   Indicates a pointer to the calling context.\r
  @param  MediaId                The media ID that the write request is for.\r
  @param  Lba                    The starting logical block address to be written.\r
  @param  BufferSize             The size of the Buffer in bytes.\r
                                 This must be a multiple of the intrinsic block size of the device.\r
  @param  Buffer                 Pointer to the source buffer for the data.\r
\r
  @retval EFI_SUCCESS            The data were written correctly to the device.\r
  @retval EFI_WRITE_PROTECTED    The device cannot be written to.\r
  @retval EFI_NO_MEDIA           There is no media in the device.\r
  @retval EFI_MEDIA_CHANGED      The MediaId is not for the current media.\r
  @retval EFI_DEVICE_ERROR       The device reported an error while attempting to perform the write operation.\r
  @retval EFI_BAD_BUFFER_SIZE    The BufferSize parameter is not a multiple of the intrinsic\r
                                 block size of the device.\r
  @retval EFI_INVALID_PARAMETER  The write request contains LBAs that are not valid,\r
                                 or the buffer is not on proper alignment.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
MmcWriteBlocks (\r
  IN EFI_BLOCK_IO_PROTOCOL    *This,\r
  IN UINT32                   MediaId,\r
  IN EFI_LBA                  Lba,\r
  IN UINTN                    BufferSize,\r
  IN VOID                     *Buffer\r
  );\r
\r
/**\r
  Flushes all modified data to a physical block device.\r
\r
  @param  This                   Indicates a pointer to the calling context.\r
\r
  @retval EFI_SUCCESS            All outstanding data were written correctly to the device.\r
  @retval EFI_DEVICE_ERROR       The device reported an error while attempting to write data.\r
  @retval EFI_NO_MEDIA           There is no media in the device.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
MmcFlushBlocks (\r
  IN EFI_BLOCK_IO_PROTOCOL  *This\r
  );\r
\r
#endif\r
Commit	Line	Data
	1	/** @file\r
	2	Main Header file for the MMC DXE driver\r
	3	\r
	4	Copyright (c) 2011, ARM Limited. All rights reserved.\r
	5	\r
	6	This program and the accompanying materials \r
	7	are licensed and made available under the terms and conditions of the BSD License \r
	8	which accompanies this distribution. The full text of the license may be found at \r
	9	http://opensource.org/licenses/bsd-license.php \r
	10	\r
	11	THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
	12	WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
	13	\r
	14	**/\r
	15	\r
	16	#ifndef __MMC_H\r
	17	#define __MMC_H\r
	18	\r
	19	#include <Uefi.h>\r
	20	\r
	21	#include <Protocol/DiskIo.h>\r
	22	#include <Protocol/BlockIo.h>\r
	23	#include <Protocol/DevicePath.h>\r
	24	#include <Protocol/MmcHost.h>\r
	25	\r
	26	#include <Library/UefiLib.h>\r
	27	\r
	28	#define MMC_TRACE(txt) DEBUG((EFI_D_BLKIO, "MMC: " txt "\n"))\r
	29	\r
	30	#define MMC_IOBLOCKS_READ 0\r
	31	#define MMC_IOBLOCKS_WRITE 1\r
	32	\r
	33	#define MMC_OCR_POWERUP 0x80000000\r
	34	\r
	35	#define MMC_CSD_GET_CCC(Response) (Response[1] >> 20)\r
	36	#define MMC_CSD_GET_TRANSPEED(Response) (Response[0] & 0xFF)\r
	37	#define MMC_CSD_GET_READBLLEN(Response) ((Response[1] >> 16) & 0xF)\r
	38	#define MMC_CSD_GET_WRITEBLLEN(Response) ((Response[3] >> 22) & 0xF)\r
	39	#define MMC_CSD_GET_FILEFORMAT(Response) ((Response[3] >> 10) & 0x3)\r
	40	#define MMC_CSD_GET_FILEFORMATGRP(Response) ((Response[3] >> 15) & 0x1)\r
	41	#define MMC_CSD_GET_DEVICESIZE(csd) (((Response[2] >> 30) & 0x3) \| ((Response[1] & 0x3FF) << 2))\r
	42	#define MMC_CSD_GET_DEVICESIZEMULT(csd) ((Response[2] >> 15) & 0x7)\r
	43	\r
	44	#define MMC_R0_CURRENTSTATE(Response) ((Response[0] >> 9) & 0xF)\r
	45	\r
	46	#define MMC_R0_STATE_IDLE 0\r
	47	#define MMC_R0_STATE_READY 1\r
	48	#define MMC_R0_STATE_IDENT 2\r
	49	#define MMC_R0_STATE_STDBY 3\r
	50	#define MMC_R0_STATE_TRAN 4\r
	51	#define MMC_R0_STATE_DATA 5\r
	52	\r
	53	typedef enum {\r
	54	UNKNOWN_CARD,\r
	55	MMC_CARD, //MMC card\r
	56	MMC_CARD_HIGH, //MMC Card with High capacity\r
	57	SD_CARD, //SD 1.1 card\r
	58	SD_CARD_2, //SD 2.0 or above standard card\r
	59	SD_CARD_2_HIGH //SD 2.0 or above high capacity card\r
	60	} CARD_TYPE;\r
	61	\r
	62	typedef struct {\r
	63	UINT32 Reserved0: 7; // 0 \r
	64	UINT32 V170_V195: 1; // 1.70V - 1.95V\r
	65	UINT32 V200_V260: 7; // 2.00V - 2.60V\r
	66	UINT32 V270_V360: 9; // 2.70V - 3.60V\r
	67	UINT32 RESERVED_1: 5; // Reserved\r
	68	UINT32 AccessMode: 2; // 00b (byte mode), 10b (sector mode) \r
	69	UINT32 Busy: 1; // This bit is set to LOW if the card has not finished the power up routine\r
	70	} OCR;\r
	71	\r
	72	typedef struct {\r
	73	UINT32 NOT_USED; // 1 [0:0]\r
	74	UINT32 CRC; // CRC7 checksum [7:1]\r
	75	UINT32 MDT; // Manufacturing date [19:8]\r
	76	UINT32 RESERVED_1; // Reserved [23:20]\r
	77	UINT32 PSN; // Product serial number [55:24]\r
	78	UINT8 PRV; // Product revision [63:56]\r
	79	UINT8 PNM[5]; // Product name [64:103]\r
	80	UINT16 OID; // OEM/Application ID [119:104]\r
	81	UINT8 MID; // Manufacturer ID [127:120]\r
	82	} CID;\r
	83	\r
	84	typedef struct {\r
	85	UINT8 NOT_USED: 1; // Not used, always 1 [0:0]\r
	86	UINT8 CRC: 7; // CRC [7:1]\r
	87	\r
	88	UINT8 RESERVED_1: 2; // Reserved [9:8]\r
	89	UINT8 FILE_FORMAT: 2; // File format [11:10]\r
	90	UINT8 TMP_WRITE_PROTECT: 1; // Temporary write protection [12:12]\r
	91	UINT8 PERM_WRITE_PROTECT: 1; // Permanent write protection [13:13]\r
	92	UINT8 COPY: 1; // Copy flag (OTP) [14:14]\r
	93	UINT8 FILE_FORMAT_GRP: 1; // File format group [15:15]\r
	94	\r
	95	UINT16 RESERVED_2: 5; // Reserved [20:16]\r
	96	UINT16 WRITE_BL_PARTIAL: 1; // Partial blocks for write allowed [21:21]\r
	97	UINT16 WRITE_BL_LEN: 4; // Max. write data block length [25:22]\r
	98	UINT16 R2W_FACTOR: 3; // Write speed factor [28:26]\r
	99	UINT16 RESERVED_3: 2; // Reserved [30:29]\r
	100	UINT16 WP_GRP_ENABLE: 1; // Write protect group enable [31:31]\r
	101	\r
	102	UINT32 WP_GRP_SIZE: 7; // Write protect group size [38:32]\r
	103	UINT32 SECTOR_SIZE: 7; // Erase sector size [45:39]\r
	104	UINT32 ERASE_BLK_EN: 1; // Erase single block enable [46:46]\r
	105	UINT32 C_SIZE_MULT: 3; // Device size multiplier [49:47]\r
	106	UINT32 VDD_W_CURR_MAX: 3; // Max. write current @ VDD max [52:50]\r
	107	UINT32 VDD_W_CURR_MIN: 3; // Max. write current @ VDD min [55:53]\r
	108	UINT32 VDD_R_CURR_MAX: 3; // Max. read current @ VDD max [58:56]\r
	109	UINT32 VDD_R_CURR_MIN: 3; // Max. read current @ VDD min [61:59]\r
	110	UINT32 C_SIZELow2: 2; // Device size [63:62]\r
	111	\r
	112	UINT32 C_SIZEHigh10: 10;// Device size [73:64]\r
	113	UINT32 RESERVED_4: 2; // Reserved [75:74]\r
	114	UINT32 DSR_IMP: 1; // DSR implemented [76:76]\r
	115	UINT32 READ_BLK_MISALIGN: 1; // Read block misalignment [77:77]\r
	116	UINT32 WRITE_BLK_MISALIGN: 1; // Write block misalignment [78:78]\r
	117	UINT32 READ_BL_PARTIAL: 1; // Partial blocks for read allowed [79:79]\r
	118	UINT32 READ_BL_LEN: 4; // Max. read data block length [83:80]\r
	119	UINT32 CCC: 12;// Card command classes [95:84]\r
	120	\r
	121	UINT8 TRAN_SPEED ; // Max. bus clock frequency [103:96]\r
	122	UINT8 NSAC ; // Data read access-time 2 in CLK cycles (NSAC*100) [111:104]\r
	123	UINT8 TAAC ; // Data read access-time 1 [119:112]\r
	124	\r
	125	UINT8 RESERVED_5: 6; // Reserved [125:120]\r
	126	UINT8 CSD_STRUCTURE: 2; // CSD structure [127:126]\r
	127	} CSD;\r
	128	\r
	129	typedef struct {\r
	130	UINT16 RCA;\r
	131	CARD_TYPE CardType;\r
	132	OCR OCRData;\r
	133	CID CIDData;\r
	134	CSD CSDData;\r
	135	} CARD_INFO;\r
	136	\r
	137	typedef struct _MMC_HOST_INSTANCE {\r
	138	UINTN Signature;\r
	139	LIST_ENTRY Link;\r
	140	EFI_HANDLE MmcHandle;\r
	141	EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r
	142	\r
	143	MMC_STATE State;\r
	144	EFI_BLOCK_IO_PROTOCOL BlockIo;\r
	145	CARD_INFO CardInfo;\r
	146	EFI_MMC_HOST_PROTOCOL *MmcHost;\r
	147	} MMC_HOST_INSTANCE;\r
	148	\r
	149	#define MMC_HOST_INSTANCE_SIGNATURE SIGNATURE_32('m', 'm', 'c', 'h')\r
	150	#define MMC_HOST_INSTANCE_FROM_BLOCK_IO_THIS(a) CR (a, MMC_HOST_INSTANCE, BlockIo, MMC_HOST_INSTANCE_SIGNATURE)\r
	151	#define MMC_HOST_INSTANCE_FROM_LINK(a) CR (a, MMC_HOST_INSTANCE, Link, MMC_HOST_INSTANCE_SIGNATURE)\r
	152	\r
	153	\r
	154	EFI_STATUS\r
	155	EFIAPI\r
	156	MmcGetDriverName (\r
	157	IN EFI_COMPONENT_NAME_PROTOCOL *This,\r
	158	IN CHAR8 *Language,\r
	159	OUT CHAR16 **DriverName\r
	160	);\r
	161	\r
	162	EFI_STATUS\r
	163	EFIAPI\r
	164	MmcGetControllerName (\r
	165	IN EFI_COMPONENT_NAME_PROTOCOL *This,\r
	166	IN EFI_HANDLE ControllerHandle,\r
	167	IN EFI_HANDLE ChildHandle OPTIONAL,\r
	168	IN CHAR8 *Language,\r
	169	OUT CHAR16 **ControllerName\r
	170	);\r
	171	\r
	172	extern EFI_COMPONENT_NAME_PROTOCOL gMmcComponentName;\r
	173	extern EFI_COMPONENT_NAME2_PROTOCOL gMmcComponentName2;\r
	174	\r
	175	extern EFI_DRIVER_DIAGNOSTICS2_PROTOCOL gMmcDriverDiagnostics2;\r
	176	\r
	177	extern LIST_ENTRY mMmcHostPool;\r
	178	\r
	179	/**\r
	180	Reset the block device.\r
	181	\r
	182	This function implements EFI_BLOCK_IO_PROTOCOL.Reset(). \r
	183	It resets the block device hardware.\r
	184	ExtendedVerification is ignored in this implementation.\r
	185	\r
	186	@param This Indicates a pointer to the calling context.\r
	187	@param ExtendedVerification Indicates that the driver may perform a more exhaustive\r
	188	verification operation of the device during reset.\r
	189	\r
	190	@retval EFI_SUCCESS The block device was reset.\r
	191	@retval EFI_DEVICE_ERROR The block device is not functioning correctly and could not be reset.\r
	192	\r
	193	**/\r
	194	EFI_STATUS\r
	195	EFIAPI\r
	196	MmcReset (\r
	197	IN EFI_BLOCK_IO_PROTOCOL *This,\r
	198	IN BOOLEAN ExtendedVerification\r
	199	);\r
	200	\r
	201	/**\r
	202	Reads the requested number of blocks from the device.\r
	203	\r
	204	This function implements EFI_BLOCK_IO_PROTOCOL.ReadBlocks(). \r
	205	It reads the requested number of blocks from the device.\r
	206	All the blocks are read, or an error is returned.\r
	207	\r
	208	@param This Indicates a pointer to the calling context.\r
	209	@param MediaId The media ID that the read request is for.\r
	210	@param Lba The starting logical block address to read from on the device.\r
	211	@param BufferSize The size of the Buffer in bytes.\r
	212	This must be a multiple of the intrinsic block size of the device.\r
	213	@param Buffer A pointer to the destination buffer for the data. The caller is\r
	214	responsible for either having implicit or explicit ownership of the buffer.\r
	215	\r
	216	@retval EFI_SUCCESS The data was read correctly from the device.\r
	217	@retval EFI_DEVICE_ERROR The device reported an error while attempting to perform the read operation.\r
	218	@retval EFI_NO_MEDIA There is no media in the device.\r
	219	@retval EFI_MEDIA_CHANGED The MediaId is not for the current media.\r
	220	@retval EFI_BAD_BUFFER_SIZE The BufferSize parameter is not a multiple of the intrinsic block size of the device.\r
	221	@retval EFI_INVALID_PARAMETER The read request contains LBAs that are not valid,\r
	222	or the buffer is not on proper alignment.\r
	223	\r
	224	**/\r
	225	EFI_STATUS\r
	226	EFIAPI\r
	227	MmcReadBlocks (\r
	228	IN EFI_BLOCK_IO_PROTOCOL *This,\r
	229	IN UINT32 MediaId,\r
	230	IN EFI_LBA Lba,\r
	231	IN UINTN BufferSize,\r
	232	OUT VOID *Buffer\r
	233	);\r
	234	\r
	235	/**\r
	236	Writes a specified number of blocks to the device.\r
	237	\r
	238	This function implements EFI_BLOCK_IO_PROTOCOL.WriteBlocks(). \r
	239	It writes a specified number of blocks to the device.\r
	240	All blocks are written, or an error is returned.\r
	241	\r
	242	@param This Indicates a pointer to the calling context.\r
	243	@param MediaId The media ID that the write request is for.\r
	244	@param Lba The starting logical block address to be written.\r
	245	@param BufferSize The size of the Buffer in bytes.\r
	246	This must be a multiple of the intrinsic block size of the device.\r
	247	@param Buffer Pointer to the source buffer for the data.\r
	248	\r
	249	@retval EFI_SUCCESS The data were written correctly to the device.\r
	250	@retval EFI_WRITE_PROTECTED The device cannot be written to.\r
	251	@retval EFI_NO_MEDIA There is no media in the device.\r
	252	@retval EFI_MEDIA_CHANGED The MediaId is not for the current media.\r
	253	@retval EFI_DEVICE_ERROR The device reported an error while attempting to perform the write operation.\r
	254	@retval EFI_BAD_BUFFER_SIZE The BufferSize parameter is not a multiple of the intrinsic\r
	255	block size of the device.\r
	256	@retval EFI_INVALID_PARAMETER The write request contains LBAs that are not valid,\r
	257	or the buffer is not on proper alignment.\r
	258	\r
	259	**/\r
	260	EFI_STATUS\r
	261	EFIAPI\r
	262	MmcWriteBlocks (\r
	263	IN EFI_BLOCK_IO_PROTOCOL *This,\r
	264	IN UINT32 MediaId,\r
	265	IN EFI_LBA Lba,\r
	266	IN UINTN BufferSize,\r
	267	IN VOID *Buffer\r
	268	);\r
	269	\r
	270	/**\r
	271	Flushes all modified data to a physical block device.\r
	272	\r
	273	@param This Indicates a pointer to the calling context.\r
	274	\r
	275	@retval EFI_SUCCESS All outstanding data were written correctly to the device.\r
	276	@retval EFI_DEVICE_ERROR The device reported an error while attempting to write data.\r
	277	@retval EFI_NO_MEDIA There is no media in the device.\r
	278	\r
	279	**/\r
	280	EFI_STATUS\r
	281	EFIAPI\r
	282	MmcFlushBlocks (\r
	283	IN EFI_BLOCK_IO_PROTOCOL *This\r
	284	);\r
	285	\r
	286	#endif\r