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

Go to the source code of this file.

Data Structures
union	OCR_RESPONSE

Macros
#define	MAX_RETRY_COUNT 1000

#define	CMD_RETRY_COUNT 20

#define	RCA_SHIFT_OFFSET 16

#define	EMMC_CARD_SIZE 512

#define	EMMC_ECSD_SIZE_OFFSET 53

#define	EXTCSD_BUS_WIDTH 183

#define	EXTCSD_HS_TIMING 185

#define	EMMC_TIMING_BACKWARD 0

#define	EMMC_TIMING_HS 1

#define	EMMC_TIMING_HS200 2

#define	EMMC_TIMING_HS400 3

#define	EMMC_BUS_WIDTH_1BIT 0

#define	EMMC_BUS_WIDTH_4BIT 1

#define	EMMC_BUS_WIDTH_8BIT 2

#define	EMMC_BUS_WIDTH_DDR_4BIT 5

#define	EMMC_BUS_WIDTH_DDR_8BIT 6

#define	EMMC_SWITCH_ERROR (1 << 7)

#define	SD_BUS_WIDTH_1BIT (1 << 0)

#define	SD_BUS_WIDTH_4BIT (1 << 2)

#define	SD_CCC_SWITCH (1 << 10)

#define	DEVICE_STATE(x) (((x) >> 9) & 0xf)

Typedefs
typedef enum _EMMC_DEVICE_STATE	EMMC_DEVICE_STATE

Enumerations
enum	_EMMC_DEVICE_STATE { EMMC_IDLE_STATE = 0 , EMMC_READY_STATE , EMMC_IDENT_STATE , EMMC_STBY_STATE , EMMC_TRAN_STATE , EMMC_DATA_STATE , EMMC_RCV_STATE , EMMC_PRG_STATE , EMMC_DIS_STATE , EMMC_BTST_STATE , EMMC_SLP_STATE }

Functions
STATIC EFI_STATUS EFIAPI	EmmcGetDeviceState (IN MMC_HOST_INSTANCE MmcHostInstance, OUT EMMC_DEVICE_STATE State)

STATIC EFI_STATUS EFIAPI	EmmcSetEXTCSD (IN MMC_HOST_INSTANCE *MmcHostInstance, UINT32 ExtCmdIndex, UINT32 Value)

STATIC EFI_STATUS EFIAPI	EmmcIdentificationMode (IN MMC_HOST_INSTANCE *MmcHostInstance, IN OCR_RESPONSE Response)

STATIC EFI_STATUS	InitializeEmmcDevice (IN MMC_HOST_INSTANCE *MmcHostInstance)

STATIC UINT32	CreateSwitchCmdArgument (IN UINT32 Mode, IN UINT8 Group, IN UINT8 Value)

STATIC EFI_STATUS	InitializeSdMmcDevice (IN MMC_HOST_INSTANCE *MmcHostInstance)

STATIC EFI_STATUS EFIAPI	MmcIdentificationMode (IN MMC_HOST_INSTANCE *MmcHostInstance)

EFI_STATUS	InitializeMmcDevice (IN MMC_HOST_INSTANCE *MmcHostInstance)

Variables
UINT32	mEmmcRcaCount = 0

Detailed Description

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

Definition in file MmcIdentification.c.

Macro Definition Documentation

◆ CMD_RETRY_COUNT

#define CMD_RETRY_COUNT 20

Definition at line 21 of file MmcIdentification.c.

◆ DEVICE_STATE

#define DEVICE_STATE ( x ) (((x) >> 9) & 0xf)

Definition at line 47 of file MmcIdentification.c.

◆ EMMC_BUS_WIDTH_1BIT

#define EMMC_BUS_WIDTH_1BIT 0

Definition at line 34 of file MmcIdentification.c.

◆ EMMC_BUS_WIDTH_4BIT

#define EMMC_BUS_WIDTH_4BIT 1

Definition at line 35 of file MmcIdentification.c.

◆ EMMC_BUS_WIDTH_8BIT

#define EMMC_BUS_WIDTH_8BIT 2

Definition at line 36 of file MmcIdentification.c.

◆ EMMC_BUS_WIDTH_DDR_4BIT

#define EMMC_BUS_WIDTH_DDR_4BIT 5

Definition at line 37 of file MmcIdentification.c.

◆ EMMC_BUS_WIDTH_DDR_8BIT

#define EMMC_BUS_WIDTH_DDR_8BIT 6

Definition at line 38 of file MmcIdentification.c.

◆ EMMC_CARD_SIZE

#define EMMC_CARD_SIZE 512

Definition at line 23 of file MmcIdentification.c.

◆ EMMC_ECSD_SIZE_OFFSET

#define EMMC_ECSD_SIZE_OFFSET 53

Definition at line 24 of file MmcIdentification.c.

◆ EMMC_SWITCH_ERROR

#define EMMC_SWITCH_ERROR (1 << 7)

Definition at line 40 of file MmcIdentification.c.

◆ EMMC_TIMING_BACKWARD

#define EMMC_TIMING_BACKWARD 0

Definition at line 29 of file MmcIdentification.c.

◆ EMMC_TIMING_HS

#define EMMC_TIMING_HS 1

Definition at line 30 of file MmcIdentification.c.

◆ EMMC_TIMING_HS200

#define EMMC_TIMING_HS200 2

Definition at line 31 of file MmcIdentification.c.

◆ EMMC_TIMING_HS400

#define EMMC_TIMING_HS400 3

Definition at line 32 of file MmcIdentification.c.

◆ EXTCSD_BUS_WIDTH

#define EXTCSD_BUS_WIDTH 183

Definition at line 26 of file MmcIdentification.c.

◆ EXTCSD_HS_TIMING

#define EXTCSD_HS_TIMING 185

Definition at line 27 of file MmcIdentification.c.

◆ MAX_RETRY_COUNT

#define MAX_RETRY_COUNT 1000

Definition at line 20 of file MmcIdentification.c.

◆ RCA_SHIFT_OFFSET

#define RCA_SHIFT_OFFSET 16

Definition at line 22 of file MmcIdentification.c.

◆ SD_BUS_WIDTH_1BIT

#define SD_BUS_WIDTH_1BIT (1 << 0)

Definition at line 42 of file MmcIdentification.c.

◆ SD_BUS_WIDTH_4BIT

#define SD_BUS_WIDTH_4BIT (1 << 2)

Definition at line 43 of file MmcIdentification.c.

◆ SD_CCC_SWITCH

#define SD_CCC_SWITCH (1 << 10)

Definition at line 45 of file MmcIdentification.c.

Enumeration Type Documentation

◆ _EMMC_DEVICE_STATE

enum _EMMC_DEVICE_STATE

Definition at line 48 of file MmcIdentification.c.

Function Documentation

◆ CreateSwitchCmdArgument()

STATIC UINT32 CreateSwitchCmdArgument	(	IN UINT32	Mode,
		IN UINT8	Group,
		IN UINT8	Value
	)

Definition at line 328 of file MmcIdentification.c.

◆ EmmcGetDeviceState()

STATIC EFI_STATUS EFIAPI EmmcGetDeviceState	(	IN MMC_HOST_INSTANCE *	MmcHostInstance,
		OUT EMMC_DEVICE_STATE *	State
	)

Definition at line 67 of file MmcIdentification.c.

◆ EmmcIdentificationMode()

STATIC EFI_STATUS EFIAPI EmmcIdentificationMode	(	IN MMC_HOST_INSTANCE *	MmcHostInstance,
		IN OCR_RESPONSE	Response
	)

Definition at line 141 of file MmcIdentification.c.

◆ EmmcSetEXTCSD()

STATIC EFI_STATUS EFIAPI EmmcSetEXTCSD	(	IN MMC_HOST_INSTANCE *	MmcHostInstance,
		UINT32	ExtCmdIndex,
		UINT32	Value
	)

Definition at line 106 of file MmcIdentification.c.

◆ InitializeEmmcDevice()

STATIC EFI_STATUS InitializeEmmcDevice ( IN MMC_HOST_INSTANCE * MmcHostInstance )

Definition at line 259 of file MmcIdentification.c.

◆ InitializeMmcDevice()

EFI_STATUS InitializeMmcDevice ( IN MMC_HOST_INSTANCE * MmcHostInstance )

Definition at line 785 of file MmcIdentification.c.

◆ InitializeSdMmcDevice()

STATIC EFI_STATUS InitializeSdMmcDevice ( IN MMC_HOST_INSTANCE * MmcHostInstance )

Definition at line 345 of file MmcIdentification.c.

◆ MmcIdentificationMode()

STATIC EFI_STATUS EFIAPI MmcIdentificationMode ( IN MMC_HOST_INSTANCE * MmcHostInstance )

Definition at line 542 of file MmcIdentification.c.

Variable Documentation

◆ mEmmcRcaCount

UINT32 mEmmcRcaCount = 0

Definition at line 62 of file MmcIdentification.c.

Data Structures

Macros

Typedefs

Enumerations

Functions

Variables