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/** @file
Definition of the MMC Host Protocol
Copyright (c) 2011-2014, ARM Limited. All rights reserved.
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#ifndef __MMC_HOST_H__
#define __MMC_HOST_H__
///
/// Global ID for the MMC Host Protocol
///
#define EFI_MMC_HOST_PROTOCOL_GUID \
{ 0x3e591c00, 0x9e4a, 0x11df, {0x92, 0x44, 0x00, 0x02, 0xA5, 0xD5, 0xC5, 0x1B } }
#define MMC_RESPONSE_TYPE_R1 0
#define MMC_RESPONSE_TYPE_R1b 0
#define MMC_RESPONSE_TYPE_R2 1
#define MMC_RESPONSE_TYPE_R3 0
#define MMC_RESPONSE_TYPE_R6 0
#define MMC_RESPONSE_TYPE_R7 0
#define MMC_RESPONSE_TYPE_OCR 0
#define MMC_RESPONSE_TYPE_CID 1
#define MMC_RESPONSE_TYPE_CSD 1
#define MMC_RESPONSE_TYPE_RCA 0
typedef UINT32 MMC_RESPONSE_TYPE;
typedef UINT32 MMC_CMD;
#define MMC_CMD_WAIT_RESPONSE (1 << 16)
#define MMC_CMD_LONG_RESPONSE (1 << 17)
#define MMC_CMD_NO_CRC_RESPONSE (1 << 18)
#define MMC_INDX(Index) ((Index) & 0xFFFF)
#define MMC_GET_INDX(MmcCmd) ((MmcCmd) & 0xFFFF)
#define MMC_CMD0 (MMC_INDX(0) | MMC_CMD_NO_CRC_RESPONSE)
#define MMC_CMD1 (MMC_INDX(1) | MMC_CMD_WAIT_RESPONSE | MMC_CMD_NO_CRC_RESPONSE)
#define MMC_CMD2 (MMC_INDX(2) | MMC_CMD_WAIT_RESPONSE | MMC_CMD_LONG_RESPONSE)
#define MMC_CMD3 (MMC_INDX(3) | MMC_CMD_WAIT_RESPONSE)
#define MMC_CMD5 (MMC_INDX(5) | MMC_CMD_WAIT_RESPONSE | MMC_CMD_NO_CRC_RESPONSE)
#define MMC_CMD7 (MMC_INDX(7) | MMC_CMD_WAIT_RESPONSE)
#define MMC_CMD8 (MMC_INDX(8) | MMC_CMD_WAIT_RESPONSE)
#define MMC_CMD9 (MMC_INDX(9) | MMC_CMD_WAIT_RESPONSE | MMC_CMD_LONG_RESPONSE)
#define MMC_CMD11 (MMC_INDX(11) | MMC_CMD_WAIT_RESPONSE)
#define MMC_CMD12 (MMC_INDX(12) | MMC_CMD_WAIT_RESPONSE)
#define MMC_CMD13 (MMC_INDX(13) | MMC_CMD_WAIT_RESPONSE)
#define MMC_CMD16 (MMC_INDX(16) | MMC_CMD_WAIT_RESPONSE)
#define MMC_CMD17 (MMC_INDX(17) | MMC_CMD_WAIT_RESPONSE)
#define MMC_CMD18 (MMC_INDX(18) | MMC_CMD_WAIT_RESPONSE)
#define MMC_CMD20 (MMC_INDX(20) | MMC_CMD_WAIT_RESPONSE)
#define MMC_CMD23 (MMC_INDX(23) | MMC_CMD_WAIT_RESPONSE)
#define MMC_CMD24 (MMC_INDX(24) | MMC_CMD_WAIT_RESPONSE)
#define MMC_CMD55 (MMC_INDX(55) | MMC_CMD_WAIT_RESPONSE)
#define MMC_ACMD41 (MMC_INDX(41) | MMC_CMD_WAIT_RESPONSE | MMC_CMD_NO_CRC_RESPONSE)
// Valid responses for CMD1 in eMMC
#define EMMC_CMD1_CAPACITY_LESS_THAN_2GB 0x00FF8080 // Capacity <= 2GB, byte addressing used
#define EMMC_CMD1_CAPACITY_GREATER_THAN_2GB 0x40FF8080 // Capacity > 2GB, 512-byte sector addressing used
typedef enum _MMC_STATE {
MmcInvalidState = 0,
MmcHwInitializationState,
MmcIdleState,
MmcReadyState,
MmcIdentificationState,
MmcStandByState,
MmcTransferState,
MmcSendingDataState,
MmcReceiveDataState,
MmcProgrammingState,
MmcDisconnectState,
} MMC_STATE;
///
/// Forward declaration for EFI_MMC_HOST_PROTOCOL
///
typedef struct _EFI_MMC_HOST_PROTOCOL EFI_MMC_HOST_PROTOCOL;
typedef BOOLEAN (EFIAPI *MMC_ISCARDPRESENT) (
IN EFI_MMC_HOST_PROTOCOL *This
);
typedef BOOLEAN (EFIAPI *MMC_ISREADONLY) (
IN EFI_MMC_HOST_PROTOCOL *This
);
typedef EFI_STATUS (EFIAPI *MMC_BUILDDEVICEPATH) (
IN EFI_MMC_HOST_PROTOCOL *This,
OUT EFI_DEVICE_PATH_PROTOCOL **DevicePath
);
typedef EFI_STATUS (EFIAPI *MMC_NOTIFYSTATE) (
IN EFI_MMC_HOST_PROTOCOL *This,
IN MMC_STATE State
);
typedef EFI_STATUS (EFIAPI *MMC_SENDCOMMAND) (
IN EFI_MMC_HOST_PROTOCOL *This,
IN MMC_CMD Cmd,
IN UINT32 Argument
);
typedef EFI_STATUS (EFIAPI *MMC_RECEIVERESPONSE) (
IN EFI_MMC_HOST_PROTOCOL *This,
IN MMC_RESPONSE_TYPE Type,
IN UINT32 *Buffer
);
typedef EFI_STATUS (EFIAPI *MMC_READBLOCKDATA) (
IN EFI_MMC_HOST_PROTOCOL *This,
IN EFI_LBA Lba,
IN UINTN Length,
OUT UINT32 *Buffer
);
typedef EFI_STATUS (EFIAPI *MMC_WRITEBLOCKDATA) (
IN EFI_MMC_HOST_PROTOCOL *This,
IN EFI_LBA Lba,
IN UINTN Length,
IN UINT32 *Buffer
);
struct _EFI_MMC_HOST_PROTOCOL {
UINT32 Revision;
MMC_ISCARDPRESENT IsCardPresent;
MMC_ISREADONLY IsReadOnly;
MMC_BUILDDEVICEPATH BuildDevicePath;
MMC_NOTIFYSTATE NotifyState;
MMC_SENDCOMMAND SendCommand;
MMC_RECEIVERESPONSE ReceiveResponse;
MMC_READBLOCKDATA ReadBlockData;
MMC_WRITEBLOCKDATA WriteBlockData;
};
#define MMC_HOST_PROTOCOL_REVISION 0x00010001 // 1.1
extern EFI_GUID gEfiMmcHostProtocolGuid;
#endif
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