Introduction

This module contains APIs to program and use the MMCSD LLD modules. The APIs can be used by other drivers to get access to MMCSD and also by application to initiate transaction operations.

The MMCSD LLD header file should be included in an application as follows:

#include <drivers/MMCSD/v0/lld/mmcsd_lld.h>

Files
file	mmcsd_lld.h
	MMCSD LLD Driver API/interface file.

Data Structures
struct	MMCSD_EmmcDeviceData
	eMMC device properties More...

struct	MMCSD_SdDeviceData
	SD device properties. More...

struct	MMCSDLLD_Transaction
	MMCSDLLD Transaction. More...

struct	MMCSDLLD_InitObject
	MMCSD Driver Initialization Object. More...

struct	MMCSDLLD_Object
	MMCSD Driver Object. More...

Functions
int32_t	MMCSD_lld_init (MMCSDLLD_Handle handle)
	This API Initializes the MMCSD instance. More...

int32_t	MMCSD_lld_deInit (MMCSDLLD_Handle handle)
	This API De-Initializes the MMCSD instance. More...

uint32_t	MMCSD_lld_getBlockSize (MMCSDLLD_Handle handle)
	This function returns the block size of the MMC/SD media connected to the MMCSD controller. More...

int32_t	MMCSD_lld_write_SD_Poll (MMCSDLLD_Handle handle, uint8_t *buf, uint32_t startBlk, uint32_t numBlks)
	Function to perform block writes to the SD media in Polling Mode. More...

int32_t	MMCSD_lld_read_SD_Poll (MMCSDLLD_Handle handle, uint8_t *buf, uint32_t startBlk, uint32_t numBlks)
	Function to perform block reads from the SD media in Polling Mode. More...

int32_t	MMCSD_lld_write_MMC_Poll (MMCSDLLD_Handle handle, uint8_t *buf, uint32_t startBlk, uint32_t numBlks)
	Function to perform block writes to the MMC media in Polling Mode. More...

int32_t	MMCSD_lld_read_MMC_Poll (MMCSDLLD_Handle handle, uint8_t *buf, uint32_t startBlk, uint32_t numBlks)
	Function to perform block reads from the MMC media in Polling Mode. More...

int32_t	MMCSD_lld_write_SD_Intr (MMCSDLLD_Handle handle, uint8_t *buf, uint32_t startBlk, uint32_t numBlks)
	Function to perform block writes to the SD media in Interrupt Mode. More...

int32_t	MMCSD_lld_read_SD_Intr (MMCSDLLD_Handle handle, uint8_t *buf, uint32_t startBlk, uint32_t numBlks)
	Function to perform block reads from the SD media in Interrupt Mode. More...

int32_t	MMCSD_lld_write_MMC_Intr (MMCSDLLD_Handle handle, uint8_t *buf, uint32_t startBlk, uint32_t numBlks)
	Function to perform block writes to the MMC media in Interrupt Mode. More...

int32_t	MMCSD_lld_read_MMC_Intr (MMCSDLLD_Handle handle, uint8_t *buf, uint32_t startBlk, uint32_t numBlks)
	Function to perform block reads from the MMC media in Interrupt Mode. More...

int32_t	MMCSD_lld_change_Bus_Config_MMC (MMCSDLLD_Handle handle, uint32_t busSpeed, uint32_t busWidth)
	Function to reconfigure the bus Speed and Bus width of the bus for MMC. More...

int32_t	MMCSD_lld_change_Bus_Config_SD (MMCSDLLD_Handle handle, uint32_t busSpeed)
	Function to reconfigure the bus Speed and Bus width of the bus for MMC. More...

int32_t	MMCSD_lld_change_Tuning_Type (MMCSDLLD_Handle handle, uint32_t tuningType)
	Function to reconfigure the bus Speed and Bus width of the bus for MMC. More...

int32_t	MMCSD_lld_enableBootPartition (MMCSDLLD_Handle handle, uint32_t partitionNum)
	Function to enable the boot partition given the media is eMMC. More...

int32_t	MMCSD_lld_disableBootPartition (MMCSDLLD_Handle handle)
	This function disables the boot partition if the media is eMMC. More...

void	MMCSD_lld_Isr (void *args)
	This is the MMCSD Controller ISR and can be used as IRQ handler. More...

Typedefs
typedef uint32_t(*	MMCSD_Clock_getTicks) (void)
	The definition of a get System Tick function used by the MMCSD driver to keep track of time. More...

typedef uint32_t(*	MMCSD_Clock_usecToTicks) (uint64_t usecs)
	The definition of a micro seconds to ticks function used by the MMCSD driver to get ticks from microseconds. More...

typedef void(*	MMCSD_Clock_uSleep) (uint32_t usec)
	The definition of a sleep function used by the MMCSD driver for delay. More...

typedef void(*	MMCSD_lld_transferCompleteCallback) (void *args, int32_t xferStatus)
	The definition of a transfer completion callback function used by the MMCSD driver when used in Callback Mode. More...

typedef struct MMCSDLLD_InitObject *	MMCSDLLD_InitHandle

typedef struct MMCSDLLD_Object *	MMCSDLLD_Handle

Return status

#define	MMCSD_STS_SUCCESS ((int32_t) 0)
	Return status when the API execution was successful. More...

#define	MMCSD_STS_ERR ((int32_t)-1)
	Return status when the API execution was not successful due to a generic Error. More...

#define	MMCSD_STS_ERR_TIMEOUT ((int32_t)-2)
	Return status when the API execution was not successful due to a time out. More...

#define	MMCSD_STS_ERR_INVALID_PARAM ((int32_t)-3)
	Return status when the API execution failed due invalid parameters. More...

#define	MMCSD_STS_ERR_BUSY ((int32_t)-4)
	Return status when the API execution failed due to driver busy. More...

#define	MMCSD_STS_ERR_CARD_NOT_FOUND ((int32_t)-5)
	Return status when the API execution failed due to missing card. More...

#define	MMCSD_STS_ERR_CARD_UNUSEABLE ((int32_t)-6)
	Return status when the API execution failed due to unuseable card. More...

#define	MMCSD_STS_ERR_CARD_UNLOCK_FAIL ((int32_t)-7)
	Return status when the API execution failed due to card Unlock Failure. More...

Timeout values

#define	MMCSD_NO_WAIT ((uint32_t)0)
	Value to use when needing a timeout of zero or NO timeout, return immediately on resource not available. More...

#define	MMCSD_WAIT_FOREVER ((uint32_t)-1)
	Value to use when needing a timeout of infinity or wait forver until resource is available. More...

MMCSD Driver states

#define	MMCSD_STATE_RESET ((uint8_t) 0U)
	MMCSD driver is in Reset State prior to driver init and post driver deinit. More...

#define	MMCSD_STATE_IDLE ((uint8_t) 1U)
	MMCSD driver accepts runtime APIs only Ready State, otherwise return error. More...

#define	MMCSD_STATE_BUSY ((uint8_t) 2U)
	MMCSD driver is busy performing operation with peripherals, return error when APIs are invoked. More...

#define	MMCSD_STATE_ERROR ((uint8_t) 3U)
	MMCSD driver ran into error, returns error for all APIs other than deinit in this state. More...

MMCSD Transfer states

#define	MMCSD_XFER_IDLE_STATE ((uint8_t) 0U)
	XFER is in IDLE state. More...

#define	MMCSD_XFER_CMD_STATE ((uint8_t) 1U)
	XFER is in CMD state. More...

#define	MMCSD_XFER_WRITE_STATE ((uint8_t) 2U)
	XFER is in Write state. More...

#define	MMCSD_XFER_READ_STATE ((uint8_t) 3U)
	XFER is in Read state. More...

MACROS used to select one of the Card Slot Types.

#define	MMCSD_SLOT_TYPE_VAL_REMOVABLE ((uint8_t) 0x0U)

#define	MMCSD_SLOT_TYPE_VAL_EMBEDDED ((uint8_t) 0x1U)

#define	MMCSD_SLOT_TYPE_VAL_SHARED ((uint8_t) 0x2U)

MACROS used to select one of the possible Card Types.

#define	MMCSD_CARD_TYPE_SD ((uint32_t) 0U)

#define	MMCSD_CARD_TYPE_EMMC ((uint32_t) 2U)

#define	MMCSD_CARD_TYPE_NO_DEVICE ((uint32_t) 3U)

MACROS used to select one of the possible PHY Types.

#define	MMCSD_PHY_TYPE_HW_PHY ((uint32_t) 0U)

#define	MMCSD_PHY_TYPE_SW_PHY ((uint32_t) 1U)

#define	MMCSD_PHY_TYPE_NO_PHY ((uint32_t) 2U)

MACROS used to select one of the possible Bus Widths.

#define	MMCSD_BUS_WIDTH_4BIT ((uint32_t) 0x4U)

#define	MMCSD_BUS_WIDTH_8BIT ((uint32_t) 0x8U)

#define	MMCSD_BUS_WIDTH_1BIT ((uint32_t) 0x1U)

MACROS used to select one of the possible PHY tuning types.

#define	MMCSD_PHY_TUNING_TYPE_AUTO ((uint32_t) 0U)

#define	MMCSD_PHY_TUNING_TYPE_MANUAL ((uint32_t) 1U)

MACROS used to select one of the possible Speed Modes for SD Device.

#define	MMCSD_SD_MODE_HS ((uint32_t) 10U)

#define	MMCSD_SD_MODE_DS ((uint32_t) 11U)

#define	MMCSD_SD_MODE_SDR12 ((uint32_t) 12U)

#define	MMCSD_SD_MODE_SDR25 ((uint32_t) 13U)

#define	MMCSD_SD_MODE_SDR50 ((uint32_t) 14U)

#define	MMCSD_SD_MODE_DDR50 ((uint32_t) 15U)

#define	MMCSD_SD_MODE_SDR104 ((uint32_t) 16U)

MACROS used to select one of the possible Speed Modes for EMMC Device.

#define	MMCSD_MMC_MODE_SDR25 ((uint32_t) 20U)

#define	MMCSD_MMC_MODE_SDR50 ((uint32_t) 21U)

#define	MMCSD_MMC_MODE_HS200 ((uint32_t) 23U)

Macro Definition Documentation

◆ MMCSD_STS_SUCCESS

#define MMCSD_STS_SUCCESS ((int32_t) 0)

Return status when the API execution was successful.

◆ MMCSD_STS_ERR

#define MMCSD_STS_ERR ((int32_t)-1)

Return status when the API execution was not successful due to a generic Error.

◆ MMCSD_STS_ERR_TIMEOUT

#define MMCSD_STS_ERR_TIMEOUT ((int32_t)-2)

Return status when the API execution was not successful due to a time out.

◆ MMCSD_STS_ERR_INVALID_PARAM

#define MMCSD_STS_ERR_INVALID_PARAM ((int32_t)-3)

Return status when the API execution failed due invalid parameters.

◆ MMCSD_STS_ERR_BUSY

#define MMCSD_STS_ERR_BUSY ((int32_t)-4)

Return status when the API execution failed due to driver busy.

◆ MMCSD_STS_ERR_CARD_NOT_FOUND

#define MMCSD_STS_ERR_CARD_NOT_FOUND ((int32_t)-5)

Return status when the API execution failed due to missing card.

◆ MMCSD_STS_ERR_CARD_UNUSEABLE

#define MMCSD_STS_ERR_CARD_UNUSEABLE ((int32_t)-6)

Return status when the API execution failed due to unuseable card.

◆ MMCSD_STS_ERR_CARD_UNLOCK_FAIL

#define MMCSD_STS_ERR_CARD_UNLOCK_FAIL ((int32_t)-7)

Return status when the API execution failed due to card Unlock Failure.

◆ MMCSD_NO_WAIT

#define MMCSD_NO_WAIT ((uint32_t)0)

Value to use when needing a timeout of zero or NO timeout, return immediately on resource not available.

◆ MMCSD_WAIT_FOREVER

#define MMCSD_WAIT_FOREVER ((uint32_t)-1)

Value to use when needing a timeout of infinity or wait forver until resource is available.

◆ MMCSD_STATE_RESET

#define MMCSD_STATE_RESET ((uint8_t) 0U)

MMCSD driver is in Reset State prior to driver init and post driver deinit.

◆ MMCSD_STATE_IDLE

#define MMCSD_STATE_IDLE ((uint8_t) 1U)

MMCSD driver accepts runtime APIs only Ready State, otherwise return error.

◆ MMCSD_STATE_BUSY

#define MMCSD_STATE_BUSY ((uint8_t) 2U)

MMCSD driver is busy performing operation with peripherals, return error when APIs are invoked.

◆ MMCSD_STATE_ERROR

#define MMCSD_STATE_ERROR ((uint8_t) 3U)

MMCSD driver ran into error, returns error for all APIs other than deinit in this state.

◆ MMCSD_XFER_IDLE_STATE

#define MMCSD_XFER_IDLE_STATE ((uint8_t) 0U)

XFER is in IDLE state.

◆ MMCSD_XFER_CMD_STATE

#define MMCSD_XFER_CMD_STATE ((uint8_t) 1U)

XFER is in CMD state.

◆ MMCSD_XFER_WRITE_STATE

#define MMCSD_XFER_WRITE_STATE ((uint8_t) 2U)

XFER is in Write state.

◆ MMCSD_XFER_READ_STATE

#define MMCSD_XFER_READ_STATE ((uint8_t) 3U)

XFER is in Read state.

◆ MMCSD_SLOT_TYPE_VAL_REMOVABLE

#define MMCSD_SLOT_TYPE_VAL_REMOVABLE ((uint8_t) 0x0U)

◆ MMCSD_SLOT_TYPE_VAL_EMBEDDED

#define MMCSD_SLOT_TYPE_VAL_EMBEDDED ((uint8_t) 0x1U)

◆ MMCSD_SLOT_TYPE_VAL_SHARED

#define MMCSD_SLOT_TYPE_VAL_SHARED ((uint8_t) 0x2U)

◆ MMCSD_CARD_TYPE_SD

#define MMCSD_CARD_TYPE_SD ((uint32_t) 0U)

◆ MMCSD_CARD_TYPE_EMMC

#define MMCSD_CARD_TYPE_EMMC ((uint32_t) 2U)

◆ MMCSD_CARD_TYPE_NO_DEVICE

#define MMCSD_CARD_TYPE_NO_DEVICE ((uint32_t) 3U)

◆ MMCSD_PHY_TYPE_HW_PHY

#define MMCSD_PHY_TYPE_HW_PHY ((uint32_t) 0U)

◆ MMCSD_PHY_TYPE_SW_PHY

#define MMCSD_PHY_TYPE_SW_PHY ((uint32_t) 1U)

◆ MMCSD_PHY_TYPE_NO_PHY

#define MMCSD_PHY_TYPE_NO_PHY ((uint32_t) 2U)

◆ MMCSD_BUS_WIDTH_4BIT

#define MMCSD_BUS_WIDTH_4BIT ((uint32_t) 0x4U)

◆ MMCSD_BUS_WIDTH_8BIT

#define MMCSD_BUS_WIDTH_8BIT ((uint32_t) 0x8U)

◆ MMCSD_BUS_WIDTH_1BIT

#define MMCSD_BUS_WIDTH_1BIT ((uint32_t) 0x1U)

◆ MMCSD_PHY_TUNING_TYPE_AUTO

#define MMCSD_PHY_TUNING_TYPE_AUTO ((uint32_t) 0U)

◆ MMCSD_PHY_TUNING_TYPE_MANUAL

#define MMCSD_PHY_TUNING_TYPE_MANUAL ((uint32_t) 1U)

◆ MMCSD_SD_MODE_HS

#define MMCSD_SD_MODE_HS ((uint32_t) 10U)

◆ MMCSD_SD_MODE_DS

#define MMCSD_SD_MODE_DS ((uint32_t) 11U)

◆ MMCSD_SD_MODE_SDR12

#define MMCSD_SD_MODE_SDR12 ((uint32_t) 12U)

◆ MMCSD_SD_MODE_SDR25

#define MMCSD_SD_MODE_SDR25 ((uint32_t) 13U)

◆ MMCSD_SD_MODE_SDR50

#define MMCSD_SD_MODE_SDR50 ((uint32_t) 14U)

◆ MMCSD_SD_MODE_DDR50

#define MMCSD_SD_MODE_DDR50 ((uint32_t) 15U)

◆ MMCSD_SD_MODE_SDR104

#define MMCSD_SD_MODE_SDR104 ((uint32_t) 16U)

◆ MMCSD_MMC_MODE_SDR25

#define MMCSD_MMC_MODE_SDR25 ((uint32_t) 20U)

◆ MMCSD_MMC_MODE_SDR50

#define MMCSD_MMC_MODE_SDR50 ((uint32_t) 21U)

◆ MMCSD_MMC_MODE_HS200

#define MMCSD_MMC_MODE_HS200 ((uint32_t) 23U)

Typedef Documentation

◆ MMCSD_Clock_getTicks

typedef uint32_t(* MMCSD_Clock_getTicks) (void)

The definition of a get System Tick function used by the MMCSD driver to keep track of time.

Returns: Returns system ticks in 32-bit unsigned int format

◆ MMCSD_Clock_usecToTicks

typedef uint32_t(* MMCSD_Clock_usecToTicks) (uint64_t usecs)

The definition of a micro seconds to ticks function used by the MMCSD driver to get ticks from microseconds.

Parameters

usecs Micro Seconds

Returns: Returns system ticks in 32-bit unsigned int format

◆ MMCSD_Clock_uSleep

typedef void(* MMCSD_Clock_uSleep) (uint32_t usec)

The definition of a sleep function used by the MMCSD driver for delay.

Parameters

usec	Micro Seconds

◆ MMCSD_lld_transferCompleteCallback

typedef void(* MMCSD_lld_transferCompleteCallback) (void *args, int32_t xferStatus)

The definition of a transfer completion callback function used by the MMCSD driver when used in Callback Mode.

Parameters

args	Void Pointer
xferStatus	Transfer Status

◆ MMCSDLLD_InitHandle

typedef struct MMCSDLLD_InitObject * MMCSDLLD_InitHandle

◆ MMCSDLLD_Handle

typedef struct MMCSDLLD_Object * MMCSDLLD_Handle

Function Documentation

◆ MMCSD_lld_init()

int32_t MMCSD_lld_init ( MMCSDLLD_Handle handle )

This API Initializes the MMCSD instance.

Parameters

handle [IN] Handle to the MMCSD instance used.

Returns: MMCSD_StatusCode

◆ MMCSD_lld_deInit()

int32_t MMCSD_lld_deInit ( MMCSDLLD_Handle handle )

This API De-Initializes the MMCSD instance.

Parameters

handle [IN] Handle to the MMCSD instance used.

Returns: MMCSD_StatusCode

◆ MMCSD_lld_getBlockSize()

uint32_t MMCSD_lld_getBlockSize ( MMCSDLLD_Handle handle )

This function returns the block size of the MMC/SD media connected to the MMCSD controller.

Precondition: MMCSD controller has been initialized using MMCSD_lld_init().

Parameters

handle [IN] Handle to the MMCSD instance used.

Returns: Block size of the media.

See also: MMCSD_lld_init()

◆ MMCSD_lld_write_SD_Poll()

int32_t MMCSD_lld_write_SD_Poll	(	MMCSDLLD_Handle	handle,
		uint8_t *	buf,
		uint32_t	startBlk,
		uint32_t	numBlks
	)

Function to perform block writes to the SD media in Polling Mode.

Parameters

handle	[IN] Handle to the MMCSD instance used.
buf	[IN] Pointer to buffer from which data is to be written from.
startBlk	[IN] Block to start Writing data from.
numBlks	[IN] Number of blocks to write.

Returns: MMCSD_STS_SUCCESS on successful execution of API; else error on failure.

◆ MMCSD_lld_read_SD_Poll()

int32_t MMCSD_lld_read_SD_Poll	(	MMCSDLLD_Handle	handle,
		uint8_t *	buf,
		uint32_t	startBlk,
		uint32_t	numBlks
	)

Function to perform block reads from the SD media in Polling Mode.

Parameters

handle	[IN] Handle to the MMCSD instance used.
buf	[IN] Pointer to buffer to which data is to be read into.
startBlk	[IN] Block to start reading data from.
numBlks	[IN] Number of blocks to read.

Returns: MMCSD_STS_SUCCESS on successful execution of API; else error on failure.

◆ MMCSD_lld_write_MMC_Poll()

int32_t MMCSD_lld_write_MMC_Poll	(	MMCSDLLD_Handle	handle,
		uint8_t *	buf,
		uint32_t	startBlk,
		uint32_t	numBlks
	)

Function to perform block writes to the MMC media in Polling Mode.

Parameters

handle	[IN] Handle to the MMCSD instance used.
buf	[IN] Pointer to buffer from which data is to be written from.
startBlk	[IN] Block to start Writing data from.
numBlks	[IN] Number of blocks to write.

Returns: MMCSD_STS_SUCCESS on successful execution of API; else error on failure.

◆ MMCSD_lld_read_MMC_Poll()

int32_t MMCSD_lld_read_MMC_Poll	(	MMCSDLLD_Handle	handle,
		uint8_t *	buf,
		uint32_t	startBlk,
		uint32_t	numBlks
	)

Function to perform block reads from the MMC media in Polling Mode.

Parameters

handle	[IN] Handle to the MMCSD instance used.
buf	[IN] Pointer to buffer to which data is to be read into.
startBlk	[IN] Block to start reading data from.
numBlks	[IN] Number of blocks to read.

Returns: MMCSD_STS_SUCCESS on successful execution of API; else error on failure.

◆ MMCSD_lld_write_SD_Intr()

int32_t MMCSD_lld_write_SD_Intr	(	MMCSDLLD_Handle	handle,
		uint8_t *	buf,
		uint32_t	startBlk,
		uint32_t	numBlks
	)

Function to perform block writes to the SD media in Interrupt Mode.

Parameters

handle	[IN] Handle to the MMCSD instance used.
buf	[IN] Pointer to buffer from which data is to be written from.
startBlk	[IN] Block to start Writing data from.
numBlks	[IN] Number of blocks to write.

Returns: MMCSD_STS_SUCCESS on successful execution of API; else error on failure.

◆ MMCSD_lld_read_SD_Intr()

int32_t MMCSD_lld_read_SD_Intr	(	MMCSDLLD_Handle	handle,
		uint8_t *	buf,
		uint32_t	startBlk,
		uint32_t	numBlks
	)

Function to perform block reads from the SD media in Interrupt Mode.

Parameters

handle	[IN] Handle to the MMCSD instance used.
buf	[IN] Pointer to buffer to which data is to be read into.
startBlk	[IN] Block to start reading data from.
numBlks	[IN] Number of blocks to read.

Returns: MMCSD_STS_SUCCESS on successful execution of API; else error on failure.

◆ MMCSD_lld_write_MMC_Intr()

int32_t MMCSD_lld_write_MMC_Intr	(	MMCSDLLD_Handle	handle,
		uint8_t *	buf,
		uint32_t	startBlk,
		uint32_t	numBlks
	)

Function to perform block writes to the MMC media in Interrupt Mode.

Parameters

handle	[IN] Handle to the MMCSD instance used.
buf	[IN] Pointer to buffer from which data is to be written from.
startBlk	[IN] Block to start Writing data from.
numBlks	[IN] Number of blocks to write.

Returns: MMCSD_STS_SUCCESS on successful execution of API; else error on failure.

◆ MMCSD_lld_read_MMC_Intr()

int32_t MMCSD_lld_read_MMC_Intr	(	MMCSDLLD_Handle	handle,
		uint8_t *	buf,
		uint32_t	startBlk,
		uint32_t	numBlks
	)

Function to perform block reads from the MMC media in Interrupt Mode.

Parameters

handle	[IN] Handle to the MMCSD instance used.
buf	[IN] Pointer to buffer to which data is to be read into.
startBlk	[IN] Block to start reading data from.
numBlks	[IN] Number of blocks to read.

Returns: MMCSD_STS_SUCCESS on successful execution of API; else error on failure.

◆ MMCSD_lld_change_Bus_Config_MMC()

int32_t MMCSD_lld_change_Bus_Config_MMC	(	MMCSDLLD_Handle	handle,
		uint32_t	busSpeed,
		uint32_t	busWidth
	)

Function to reconfigure the bus Speed and Bus width of the bus for MMC.

Parameters

handle	[IN] Handle to the MMCSD instance used.
busSpeed	[IN] Bus Speed to Configure. MMCSDSpeedModesEMMC
busWidth	[IN] Bus Width to Configure. MMCSDBusWidth

Returns: MMCSD_STS_SUCCESS on successful execution of API; else error on failure.

◆ MMCSD_lld_change_Bus_Config_SD()

int32_t MMCSD_lld_change_Bus_Config_SD	(	MMCSDLLD_Handle	handle,
		uint32_t	busSpeed
	)

Function to reconfigure the bus Speed and Bus width of the bus for MMC.

Parameters

handle	[IN] Handle to the MMCSD instance used.
busSpeed	[IN] Bus Speed to Configure. MMCSDSpeedModesSD

Returns: MMCSD_STS_SUCCESS on successful execution of API; else error on failure.

◆ MMCSD_lld_change_Tuning_Type()

int32_t MMCSD_lld_change_Tuning_Type	(	MMCSDLLD_Handle	handle,
		uint32_t	tuningType
	)

Function to reconfigure the bus Speed and Bus width of the bus for MMC.

Parameters

handle	[IN] Handle to the MMCSD instance used.
tuningType	[IN] Tuning Type to Configure. MMCSDPhyTuningType

Returns: MMCSD_STS_SUCCESS on successful execution of API; else error on failure.

◆ MMCSD_lld_enableBootPartition()

int32_t MMCSD_lld_enableBootPartition	(	MMCSDLLD_Handle	handle,
		uint32_t	partitionNum
	)

Function to enable the boot partition given the media is eMMC.

Precondition: MMCSD controller has been initialized using MMCSD_lld_init().

Parameters

handle	[IN] Handle to the MMCSD instance used.
partitionNum	[IN] Boot partition to be enabled.

Returns: MMCSD_STS_SUCCESS on success; else error on failure.

See also: MMCSD_lld_init()

◆ MMCSD_lld_disableBootPartition()

int32_t MMCSD_lld_disableBootPartition ( MMCSDLLD_Handle handle )

This function disables the boot partition if the media is eMMC.

Precondition: MMCSD controller has been initialized using MMCSD_lld_init().

Parameters

handle [IN] Handle to the MMCSD instance used.

Returns: MMCSD_STS_SUCCESS on success; else error on failure.

See also: MMCSD_lld_init()

◆ MMCSD_lld_Isr()

void MMCSD_lld_Isr ( void * args )

This is the MMCSD Controller ISR and can be used as IRQ handler.

Parameters

args	[IN] Argument to the ISR.

Introduction

Files

Data Structures

Functions

Typedefs

Return status

Timeout values

MMCSD Driver states

MMCSD Transfer states

MACROS used to select one of the Card Slot Types.

MACROS used to select one of the possible Card Types.

MACROS used to select one of the possible PHY Types.

MACROS used to select one of the possible Bus Widths.

MACROS used to select one of the possible PHY tuning types.

MACROS used to select one of the possible Speed Modes for SD Device.

MACROS used to select one of the possible Speed Modes for EMMC Device.

Macro Definition Documentation

◆ MMCSD_STS_SUCCESS

◆ MMCSD_STS_ERR

◆ MMCSD_STS_ERR_TIMEOUT

◆ MMCSD_STS_ERR_INVALID_PARAM

◆ MMCSD_STS_ERR_BUSY

◆ MMCSD_STS_ERR_CARD_NOT_FOUND

◆ MMCSD_STS_ERR_CARD_UNUSEABLE

◆ MMCSD_STS_ERR_CARD_UNLOCK_FAIL

◆ MMCSD_NO_WAIT

◆ MMCSD_WAIT_FOREVER

◆ MMCSD_STATE_RESET

◆ MMCSD_STATE_IDLE

◆ MMCSD_STATE_BUSY

◆ MMCSD_STATE_ERROR

◆ MMCSD_XFER_IDLE_STATE

◆ MMCSD_XFER_CMD_STATE

◆ MMCSD_XFER_WRITE_STATE

◆ MMCSD_XFER_READ_STATE

◆ MMCSD_SLOT_TYPE_VAL_REMOVABLE

◆ MMCSD_SLOT_TYPE_VAL_EMBEDDED

◆ MMCSD_SLOT_TYPE_VAL_SHARED

◆ MMCSD_CARD_TYPE_SD

◆ MMCSD_CARD_TYPE_EMMC

◆ MMCSD_CARD_TYPE_NO_DEVICE

◆ MMCSD_PHY_TYPE_HW_PHY

◆ MMCSD_PHY_TYPE_SW_PHY

◆ MMCSD_PHY_TYPE_NO_PHY

◆ MMCSD_BUS_WIDTH_4BIT

◆ MMCSD_BUS_WIDTH_8BIT

◆ MMCSD_BUS_WIDTH_1BIT

◆ MMCSD_PHY_TUNING_TYPE_AUTO

◆ MMCSD_PHY_TUNING_TYPE_MANUAL

◆ MMCSD_SD_MODE_HS

◆ MMCSD_SD_MODE_DS

◆ MMCSD_SD_MODE_SDR12

◆ MMCSD_SD_MODE_SDR25

◆ MMCSD_SD_MODE_SDR50

◆ MMCSD_SD_MODE_DDR50

◆ MMCSD_SD_MODE_SDR104

◆ MMCSD_MMC_MODE_SDR25

◆ MMCSD_MMC_MODE_SDR50

◆ MMCSD_MMC_MODE_HS200

Typedef Documentation

◆ MMCSD_Clock_getTicks

◆ MMCSD_Clock_usecToTicks

◆ MMCSD_Clock_uSleep

◆ MMCSD_lld_transferCompleteCallback

◆ MMCSDLLD_InitHandle

◆ MMCSDLLD_Handle

Function Documentation

◆ MMCSD_lld_init()

◆ MMCSD_lld_deInit()

◆ MMCSD_lld_getBlockSize()

◆ MMCSD_lld_write_SD_Poll()

◆ MMCSD_lld_read_SD_Poll()

◆ MMCSD_lld_write_MMC_Poll()

◆ MMCSD_lld_read_MMC_Poll()

◆ MMCSD_lld_write_SD_Intr()

◆ MMCSD_lld_read_SD_Intr()

◆ MMCSD_lld_write_MMC_Intr()

◆ MMCSD_lld_read_MMC_Intr()

◆ MMCSD_lld_change_Bus_Config_MMC()

◆ MMCSD_lld_change_Bus_Config_SD()