#include <Library/BaseMemoryLib.h>
#include "Mmc.h"

Macros
#define	MMCI0_BLOCKLEN 512

#define	MMCI0_TIMEOUT 10000

Functions
EFI_STATUS	MmcNotifyState (IN MMC_HOST_INSTANCE *MmcHostInstance, IN MMC_STATE State)

EFI_STATUS EFIAPI	MmcGetCardStatus (IN MMC_HOST_INSTANCE *MmcHostInstance)

EFI_STATUS EFIAPI	MmcReset (IN EFI_BLOCK_IO_PROTOCOL *This, IN BOOLEAN ExtendedVerification)

EFI_STATUS	MmcDetectCard (EFI_MMC_HOST_PROTOCOL *MmcHost)

EFI_STATUS	MmcStopTransmission (EFI_MMC_HOST_PROTOCOL *MmcHost)

STATIC EFI_STATUS	MmcTransferBlock (IN EFI_BLOCK_IO_PROTOCOL This, IN UINTN Cmd, IN UINTN Transfer, IN UINT32 MediaId, IN EFI_LBA Lba, IN UINTN BufferSize, OUT VOID Buffer)

EFI_STATUS	MmcIoBlocks (IN EFI_BLOCK_IO_PROTOCOL This, IN UINTN Transfer, IN UINT32 MediaId, IN EFI_LBA Lba, IN UINTN BufferSize, OUT VOID Buffer)

EFI_STATUS EFIAPI	MmcReadBlocks (IN EFI_BLOCK_IO_PROTOCOL This, IN UINT32 MediaId, IN EFI_LBA Lba, IN UINTN BufferSize, OUT VOID Buffer)

EFI_STATUS EFIAPI	MmcWriteBlocks (IN EFI_BLOCK_IO_PROTOCOL This, IN UINT32 MediaId, IN EFI_LBA Lba, IN UINTN BufferSize, IN VOID Buffer)

EFI_STATUS EFIAPI	MmcFlushBlocks (IN EFI_BLOCK_IO_PROTOCOL *This)

Detailed Description

SPDX-License-Identifier: BSD-2-Clause-Patent

Definition in file MmcBlockIo.c.

Macro Definition Documentation

◆ MMCI0_BLOCKLEN

#define MMCI0_BLOCKLEN 512

Definition at line 123 of file MmcBlockIo.c.

◆ MMCI0_TIMEOUT

#define MMCI0_TIMEOUT 10000

Definition at line 124 of file MmcBlockIo.c.

Function Documentation

◆ MmcDetectCard()

EFI_STATUS MmcDetectCard ( EFI_MMC_HOST_PROTOCOL * MmcHost )

Definition at line 94 of file MmcBlockIo.c.

◆ MmcFlushBlocks()

EFI_STATUS EFIAPI MmcFlushBlocks ( IN EFI_BLOCK_IO_PROTOCOL * This )

Flushes all modified data to a physical block device.

Parameters

This	Indicates a pointer to the calling context.

Return values

EFI_SUCCESS	All outstanding data were written correctly to the device.
EFI_DEVICE_ERROR	The device reported an error while attempting to write data.
EFI_NO_MEDIA	There is no media in the device.

Definition at line 400 of file MmcBlockIo.c.

◆ MmcGetCardStatus()

EFI_STATUS EFIAPI MmcGetCardStatus ( IN MMC_HOST_INSTANCE * MmcHostInstance )

Definition at line 25 of file MmcBlockIo.c.

◆ MmcIoBlocks()

EFI_STATUS MmcIoBlocks	(	IN EFI_BLOCK_IO_PROTOCOL *	This,
		IN UINTN	Transfer,
		IN UINT32	MediaId,
		IN EFI_LBA	Lba,
		IN UINTN	BufferSize,
		OUT VOID *	Buffer
	)

Definition at line 234 of file MmcBlockIo.c.

◆ MmcNotifyState()

EFI_STATUS MmcNotifyState	(	IN MMC_HOST_INSTANCE *	MmcHostInstance,
		IN MMC_STATE	State
	)

Definition at line 14 of file MmcBlockIo.c.

◆ MmcReadBlocks()

EFI_STATUS EFIAPI MmcReadBlocks	(	IN EFI_BLOCK_IO_PROTOCOL *	This,
		IN UINT32	MediaId,
		IN EFI_LBA	Lba,
		IN UINTN	BufferSize,
		OUT VOID *	Buffer
	)

Reads the requested number of blocks from the device.

This function implements EFI_BLOCK_IO_PROTOCOL.ReadBlocks(). It reads the requested number of blocks from the device. All the blocks are read, or an error is returned.

Parameters

This	Indicates a pointer to the calling context.
MediaId	The media ID that the read request is for.
Lba	The starting logical block address to read from on the device.
BufferSize	The size of the Buffer in bytes. This must be a multiple of the intrinsic block size of the device.
Buffer	A pointer to the destination buffer for the data. The caller is responsible for either having implicit or explicit ownership of the buffer.

Return values

EFI_SUCCESS	The data was read correctly from the device.
EFI_DEVICE_ERROR	The device reported an error while attempting to perform the read operation.
EFI_NO_MEDIA	There is no media in the device.
EFI_MEDIA_CHANGED	The MediaId is not for the current media.
EFI_BAD_BUFFER_SIZE	The BufferSize parameter is not a multiple of the intrinsic block size of the device.
EFI_INVALID_PARAMETER	The read request contains LBAs that are not valid, or the buffer is not on proper alignment.

Definition at line 374 of file MmcBlockIo.c.

◆ MmcReset()

EFI_STATUS EFIAPI MmcReset	(	IN EFI_BLOCK_IO_PROTOCOL *	This,
		IN BOOLEAN	ExtendedVerification
	)

Reset the block device.

This function implements EFI_BLOCK_IO_PROTOCOL.Reset(). It resets the block device hardware. ExtendedVerification is ignored in this implementation.

Parameters

This	Indicates a pointer to the calling context.
ExtendedVerification	Indicates that the driver may perform a more exhaustive verification operation of the device during reset.

Return values

EFI_SUCCESS	The block device was reset.
EFI_DEVICE_ERROR	The block device is not functioning correctly and could not be reset.

Definition at line 61 of file MmcBlockIo.c.

◆ MmcStopTransmission()

EFI_STATUS MmcStopTransmission ( EFI_MMC_HOST_PROTOCOL * MmcHost )

Definition at line 106 of file MmcBlockIo.c.

◆ MmcTransferBlock()

STATIC EFI_STATUS MmcTransferBlock	(	IN EFI_BLOCK_IO_PROTOCOL *	This,
		IN UINTN	Cmd,
		IN UINTN	Transfer,
		IN UINT32	MediaId,
		IN EFI_LBA	Lba,
		IN UINTN	BufferSize,
		OUT VOID *	Buffer
	)

Definition at line 128 of file MmcBlockIo.c.

◆ MmcWriteBlocks()

EFI_STATUS EFIAPI MmcWriteBlocks	(	IN EFI_BLOCK_IO_PROTOCOL *	This,
		IN UINT32	MediaId,
		IN EFI_LBA	Lba,
		IN UINTN	BufferSize,
		IN VOID *	Buffer
	)

Writes a specified number of blocks to the device.

This function implements EFI_BLOCK_IO_PROTOCOL.WriteBlocks(). It writes a specified number of blocks to the device. All blocks are written, or an error is returned.

Parameters

This	Indicates a pointer to the calling context.
MediaId	The media ID that the write request is for.
Lba	The starting logical block address to be written.
BufferSize	The size of the Buffer in bytes. This must be a multiple of the intrinsic block size of the device.
Buffer	Pointer to the source buffer for the data.

Return values

EFI_SUCCESS	The data were written correctly to the device.
EFI_WRITE_PROTECTED	The device cannot be written to.
EFI_NO_MEDIA	There is no media in the device.
EFI_MEDIA_CHANGED	The MediaId is not for the current media.
EFI_DEVICE_ERROR	The device reported an error while attempting to perform the write operation.
EFI_BAD_BUFFER_SIZE	The BufferSize parameter is not a multiple of the intrinsic block size of the device.
EFI_INVALID_PARAMETER	The write request contains LBAs that are not valid, or the buffer is not on proper alignment.

Definition at line 387 of file MmcBlockIo.c.

Macros

Functions

Detailed Description

Macro Definition Documentation

◆ MMCI0_BLOCKLEN

◆ MMCI0_TIMEOUT

Function Documentation

◆ MmcDetectCard()

◆ MmcFlushBlocks()

◆ MmcGetCardStatus()

◆ MmcIoBlocks()

◆ MmcNotifyState()

◆ MmcReadBlocks()

◆ MmcReset()

◆ MmcStopTransmission()

◆ MmcTransferBlock()

◆ MmcWriteBlocks()