sd_spec.h File Reference

#include <stdint.h>

Go to the source code of this file.

Data Structures
struct	sd_switch_caps
	SD switch capabilities. More...
struct	sd_cid
	SD card identification register. More...
struct	sd_csd
	SD card specific data register. More...
struct	mmc_device_type
	MMC Device Type. More...
struct	mmc_ext_csd
	MMC extended card specific data register. More...
struct	sd_scr
	SD card configuration register. More...

Macros
#define	SD_R1_CURRENT_STATE(x)   (((x) & SD_R1_CUR_STATE) >> 9U)
#define	SD_SPI_CMD_SIZE   6
#define	SD_SPI_CMD_BODY_SIZE   (SD_SPI_CMD_SIZE - 1)
#define	SD_SPI_CRC16_SIZE   2
#define	SD_SPI_START   0x80
#define	SD_SPI_TX   0x40
#define	SD_SPI_CMD   0x3F
#define	SD_SPI_TOKEN_SINGLE   0xFE
#define	SD_SPI_TOKEN_MULTI_WRITE   0xFC
#define	SD_SPI_TOKEN_STOP_TRAN   0xFD
#define	SD_SPI_RESPONSE_ACCEPTED   0x05
#define	SD_SPI_RESPONSE_CRC_ERR   0x0B
#define	SD_SPI_RESPONSE_WRITE_ERR   0x0C
#define	SD_IF_COND_VHS_MASK   (0x0F << 8)
#define	SD_IF_COND_VHS_3V3   BIT(8)
#define	SD_IF_COND_CHECK   0xAA
#define	SDIO_OCR_IO_NUMBER_SHIFT   (28U)
#define	SDIO_IO_OCR_MASK   (0xFFFFFFU)
#define	SD_PRODUCT_NAME_BYTES   (5U)
#define	SDMMC_DEFAULT_BLOCK_SIZE   (512U)
#define	MMC_EXT_CSD_BYTES   512

Enumerations
enum	sd_opcode {   SD_GO_IDLE_STATE = 0 , MMC_SEND_OP_COND = 1 , SD_ALL_SEND_CID = 2 , SD_SEND_RELATIVE_ADDR = 3 ,   MMC_SEND_RELATIVE_ADDR = 3 , SDIO_SEND_OP_COND = 5 , SD_SWITCH = 6 , SD_SELECT_CARD = 7 ,   SD_SEND_IF_COND = 8 , MMC_SEND_EXT_CSD = 8 , SD_SEND_CSD = 9 , SD_SEND_CID = 10 ,   SD_VOL_SWITCH = 11 , SD_STOP_TRANSMISSION = 12 , SD_SEND_STATUS = 13 , MMC_CHECK_BUS_TEST = 14 ,   SD_GO_INACTIVE_STATE = 15 , SD_SET_BLOCK_SIZE = 16 , SD_READ_SINGLE_BLOCK = 17 , SD_READ_MULTIPLE_BLOCK = 18 ,   SD_SEND_TUNING_BLOCK = 19 , MMC_SEND_BUS_TEST = 19 , MMC_SEND_TUNING_BLOCK = 21 , SD_SET_BLOCK_COUNT = 23 ,   SD_WRITE_SINGLE_BLOCK = 24 , SD_WRITE_MULTIPLE_BLOCK = 25 , SD_ERASE_BLOCK_START = 32 , SD_ERASE_BLOCK_END = 33 ,   SD_ERASE_BLOCK_OPERATION = 38 , SD_APP_CMD = 55 , SD_SPI_READ_OCR = 58 , SD_SPI_CRC_ON_OFF = 59 }
	SD specification command opcodes. More...
enum	sd_app_cmd {   SD_APP_SET_BUS_WIDTH = 6 , SD_APP_SEND_STATUS = 13 , SD_APP_SEND_NUM_WRITTEN_BLK = 22 , SD_APP_SET_WRITE_BLK_ERASE_CNT = 23 ,   SD_APP_SEND_OP_COND = 41 , SD_APP_CLEAR_CARD_DETECT = 42 , SD_APP_SEND_SCR = 51 }
	SD application command opcodes. More...
enum	sd_r1_status {   SD_R1_AUTH_ERR = BIT(3) , SD_R1_APP_CMD = BIT(5) , SD_R1_FX_EVENT = BIT(6) , SD_R1_RDY_DATA = BIT(8) ,   SD_R1_CUR_STATE = (0xFU << 9) , SD_R1_ERASE_RESET = BIT(13) , SD_R1_ECC_DISABLED = BIT(14) , SD_R1_ERASE_SKIP = BIT(15) ,   SD_R1_CSD_OVERWRITE = BIT(16) , SD_R1_ERR = BIT(19) , SD_R1_CC_ERR = BIT(20) , SD_R1_ECC_FAIL = BIT(21) ,   SD_R1_ILLEGAL_CMD = BIT(22) , SD_R1_CRC_ERR = BIT(23) , SD_R1_UNLOCK_FAIL = BIT(24) , SD_R1_CARD_LOCKED = BIT(25) ,   SD_R1_WP_VIOLATION = BIT(26) , SD_R1_ERASE_PARAM = BIT(27) , SD_R1_ERASE_SEQ_ERR = BIT(28) , SD_R1_BLOCK_LEN_ERR = BIT(29) ,   SD_R1_ADDR_ERR = BIT(30) , SD_R1_OUT_OF_RANGE = BIT(31) , SD_R1_ERR_FLAGS , SD_R1ERR_NONE = 0 }
	Native SD mode R1 response status flags. More...
enum	sd_r1_current_state {   SDMMC_R1_IDLE = 0U , SDMMC_R1_READY = 1U , SDMMC_R1_IDENTIFY = 2U , SDMMC_R1_STANDBY = 3U ,   SDMMC_R1_TRANSFER = 4U , SDMMC_R1_SEND_DATA = 5U , SDMMC_R1_RECIVE_DATA = 6U , SDMMC_R1_PROGRAM = 7U ,   SDMMC_R1_DISCONNECT = 8U }
	SD current state values. More...
enum	sd_spi_r1_error_flag {   SD_SPI_R1PARAMETER_ERR = BIT(6) , SD_SPI_R1ADDRESS_ERR = BIT(5) , SD_SPI_R1ERASE_SEQ_ERR = BIT(4) , SD_SPI_R1CMD_CRC_ERR = BIT(3) ,   SD_SPI_R1ILLEGAL_CMD_ERR = BIT(2) , SD_SPI_R1ERASE_RESET = BIT(1) , SD_SPI_R1IDLE_STATE = BIT(0) }
	SPI SD mode R1 response status flags. More...
enum	sd_spi_r2_status {   SDHC_SPI_R2_CARD_LOCKED = BIT(8) , SDHC_SPI_R2_UNLOCK_FAIL = BIT(9) , SDHC_SPI_R2_ERR = BIT(10) , SDHC_SPI_R2_CC_ERR = BIT(11) ,   SDHC_SPI_R2_ECC_FAIL = BIT(12) , SDHC_SPI_R2_WP_VIOLATION = BIT(13) , SDHC_SPI_R2_ERASE_PARAM = BIT(14) , SDHC_SPI_R2_OUT_OF_RANGE = BIT(15) }
	SPI SD mode R2 response status flags. More...
enum	sd_rsp_type {   SD_RSP_TYPE_NONE = 0U , SD_RSP_TYPE_R1 = 1U , SD_RSP_TYPE_R1b = 2U , SD_RSP_TYPE_R2 = 3U ,   SD_RSP_TYPE_R3 = 4U , SD_RSP_TYPE_R4 = 5U , SD_RSP_TYPE_R5 = 6U , SD_RSP_TYPE_R5b = 7U ,   SD_RSP_TYPE_R6 = 8U , SD_RSP_TYPE_R7 = 9U , SD_SPI_RSP_TYPE_R1 = (1U << 4) , SD_SPI_RSP_TYPE_R1b = (2U << 4) ,   SD_SPI_RSP_TYPE_R2 = (3U << 4) , SD_SPI_RSP_TYPE_R3 = (4U << 4) , SD_SPI_RSP_TYPE_R4 = (5U << 4) , SD_SPI_RSP_TYPE_R5 = (6U << 4) ,   SD_SPI_RSP_TYPE_R7 = (7U << 4) }
	SD response types. More...
enum	sd_support_flag {   SD_HIGH_CAPACITY_FLAG = BIT(1) , SD_4BITS_WIDTH = BIT(2) , SD_SDHC_FLAG = BIT(3) , SD_SDXC_FLAG = BIT(4) ,   SD_1800MV_FLAG = BIT(5) , SD_3000MV_FLAG = BIT(6) , SD_CMD23_FLAG = BIT(7) , SD_SPEED_CLASS_CONTROL_FLAG = BIT(8) }
	SD support flags. More...
enum	sd_ocr_flag {   SD_OCR_PWR_BUSY_FLAG = BIT(31) , SD_OCR_HOST_CAP_FLAG = BIT(30) , SD_OCR_CARD_CAP_FLAG = SD_OCR_HOST_CAP_FLAG , SD_OCR_SWITCH_18_REQ_FLAG = BIT(24) ,   SD_OCR_SWITCH_18_ACCEPT_FLAG = SD_OCR_SWITCH_18_REQ_FLAG , SD_OCR_VDD27_28FLAG = BIT(15) , SD_OCR_VDD28_29FLAG = BIT(16) , SD_OCR_VDD29_30FLAG = BIT(17) ,   SD_OCR_VDD30_31FLAG = BIT(18) , SD_OCR_VDD31_32FLAG = BIT(19) , SD_OCR_VDD32_33FLAG = BIT(20) , SD_OCR_VDD33_34FLAG = BIT(21) ,   SD_OCR_VDD34_35FLAG = BIT(22) , SD_OCR_VDD35_36FLAG = BIT(23) }
	SD OCR bit flags. More...
enum	mmc_ocr_flag {   MMC_OCR_VDD170_195FLAG = BIT(7) , MMC_OCR_VDD20_26FLAG = 0x7F << 8 , MMC_OCR_VDD27_36FLAG = 0x1FF << 15 , MMC_OCR_SECTOR_MODE = BIT(30) ,   MMC_OCR_PWR_BUSY_FLAG = BIT(31) }
	MMC OCR bit flags. More...
enum	sdio_ocr_flag {   SDIO_OCR_IO_READY_FLAG = BIT(31) , SDIO_OCR_IO_NUMBER = (7U << 28U) , SDIO_OCR_MEM_PRESENT_FLAG = BIT(27) , SDIO_OCR_180_VOL_FLAG = BIT(24) ,   SDIO_OCR_VDD20_21FLAG = BIT(8) , SDIO_OCR_VDD21_22FLAG = BIT(9) , SDIO_OCR_VDD22_23FLAG = BIT(10) , SDIO_OCR_VDD23_24FLAG = BIT(11) ,   SDIO_OCR_VDD24_25FLAG = BIT(12) , SDIO_OCR_VDD25_26FLAG = BIT(13) , SDIO_OCR_VDD26_27FLAG = BIT(14) , SDIO_OCR_VDD27_28FLAG = BIT(15) ,   SDIO_OCR_VDD28_29FLAG = BIT(16) , SDIO_OCR_VDD29_30FLAG = BIT(17) , SDIO_OCR_VDD30_31FLAG = BIT(18) , SDIO_OCR_VDD31_32FLAG = BIT(19) ,   SDIO_OCR_VDD32_33FLAG = BIT(20) , SDIO_OCR_VDD33_34FLAG = BIT(21) , SDIO_OCR_VDD34_35FLAG = BIT(22) , SDIO_OCR_VDD35_36FLAG = BIT(23) }
	SDIO OCR bit flags. More...
enum	sd_switch_arg { SD_SWITCH_CHECK = 0U , SD_SWITCH_SET = 1U }
	SD switch arguments. More...
enum	sd_group_num { SD_GRP_TIMING_MODE = 0U , SD_GRP_CMD_SYS_MODE = 1U , SD_GRP_DRIVER_STRENGTH_MODE = 2U , SD_GRP_CURRENT_LIMIT_MODE = 3U }
	SD switch group numbers. More...
enum	hs_max_data_rate { HS_MAX_DTR = 50000000 }
enum	sd_bus_speed {   UHS_SDR12_BUS_SPEED = BIT(0) , HIGH_SPEED_BUS_SPEED = BIT(1) , UHS_SDR25_BUS_SPEED = BIT(1) , UHS_SDR50_BUS_SPEED = BIT(2) ,   UHS_SDR104_BUS_SPEED = BIT(3) , UHS_DDR50_BUS_SPEED = BIT(4) }
	SD bus speed support bit flags. More...
enum	sd_timing_mode {   SD_TIMING_SDR12 = 0U , SD_TIMING_SDR25 = 1U , SD_TIMING_SDR50 = 2U , SD_TIMING_SDR104 = 3U ,   SD_TIMING_DDR50 = 4U }
	SD timing mode function selection values. More...
enum	sdhc_clock_speed {   SDMMC_CLOCK_400KHZ = 400000U , SD_CLOCK_25MHZ = 25000000U , SD_CLOCK_50MHZ = 50000000U , SD_CLOCK_100MHZ = 100000000U ,   SD_CLOCK_208MHZ = 208000000U , MMC_CLOCK_26MHZ = 26000000U , MMC_CLOCK_52MHZ = 52000000U , MMC_CLOCK_DDR52 = 52000000U ,   MMC_CLOCK_HS200 = 200000000U , MMC_CLOCK_HS400 = 200000000U }
	SD host controller clock speed. More...
enum	sd_current_setting { SD_SET_CURRENT_200MA = 0 , SD_SET_CURRENT_400MA = 1 , SD_SET_CURRENT_600MA = 2 , SD_SET_CURRENT_800MA = 3 }
	SD current setting values. More...
enum	sd_current_limit { SD_MAX_CURRENT_200MA = BIT(0) , SD_MAX_CURRENT_400MA = BIT(1) , SD_MAX_CURRENT_600MA = BIT(2) , SD_MAX_CURRENT_800MA = BIT(3) }
	SD current support bitfield. More...
enum	sd_driver_type { SD_DRIVER_TYPE_B = 0x1 , SD_DRIVER_TYPE_A = 0x2 , SD_DRIVER_TYPE_C = 0x4 , SD_DRIVER_TYPE_D = 0x8 }
	SD driver types. More...
enum	sd_driver_strength { SD_DRV_STRENGTH_TYPEB = 0U , SD_DRV_STRENGTH_TYPEA = 1U , SD_DRV_STRENGTH_TYPEC = 2U , SD_DRV_STRENGTH_TYPED = 3U }
	SD switch drive type selection. More...
enum	mmc_csd_freq {   MMC_MAXFREQ_100KHZ = 0U << 0U , MMC_MAXFREQ_1MHZ = 1U << 0U , MMC_MAXFREQ_10MHZ = 2U << 0U , MMC_MAXFREQ_100MHZ = 3U << 0U ,   MMC_MAXFREQ_MULT_10 = 1U << 3U , MMC_MAXFREQ_MULT_12 = 2U << 3U , MMC_MAXFREQ_MULT_13 = 3U << 3U , MMC_MAXFREQ_MULT_15 = 4U << 3U ,   MMC_MAXFREQ_MULT_20 = 5U << 3U , MMC_MAXFREQ_MULT_26 = 6U << 3U , MMC_MAXFREQ_MULT_30 = 7U << 3U , MMC_MAXFREQ_MULT_35 = 8U << 3U ,   MMC_MAXFREQ_MULT_40 = 9U << 3U , MMC_MAXFREQ_MULT_45 = 0xAU << 3U , MMC_MAXFREQ_MULT_52 = 0xBU << 3U , MMC_MAXFREQ_MULT_55 = 0xCU << 3U ,   MMC_MAXFREQ_MULT_60 = 0xDU << 3U , MMC_MAXFREQ_MULT_70 = 0xEU << 3U , MMC_MAXFREQ_MULT_80 = 0xFU << 3u }
	MMC Maximum Frequency. More...
enum	mmc_timing_mode { MMC_LEGACY_TIMING = 0U , MMC_HS_TIMING = 1U , MMC_HS200_TIMING = 2U , MMC_HS400_TIMING = 3U }
	MMC Timing Modes. More...
enum	mmc_driver_strengths {   mmc_driv_type0 = 0U , mmc_driv_type1 = 1U , mmc_driv_type2 = 2U , mmc_driv_type3 = 3U ,   mmc_driv_type4 = 4U }
	MMC Driver Strengths. More...
enum	mmc_ext_csd_rev {   MMC_5_1 = 8U , MMC_5_0 = 7U , MMC_4_5 = 6U , MMC_4_4 = 5U ,   MMC_4_3 = 3U , MMC_4_2 = 2U , MMC_4_1 = 1U , MMC_4_0 = 0U }
	CSD Revision. More...
enum	sd_csd_flag {   SD_CSD_READ_BLK_PARTIAL_FLAG = BIT(0) , SD_CSD_WRITE_BLK_MISALIGN_FLAG = BIT(1) , SD_CSD_READ_BLK_MISALIGN_FLAG = BIT(2) , SD_CSD_DSR_IMPLEMENTED_FLAG = BIT(3) ,   SD_CSD_ERASE_BLK_EN_FLAG = BIT(4) , SD_CSD_WRITE_PROTECT_GRP_EN_FLAG = BIT(5) , SD_CSD_WRITE_BLK_PARTIAL_FLAG = BIT(6) , SD_CSD_FILE_FMT_GRP_FLAG = BIT(7) ,   SD_CSD_COPY_FLAG = BIT(8) , SD_CSD_PERMANENT_WRITE_PROTECT_FLAG = BIT(9) , SD_CSD_TMP_WRITE_PROTECT_FLAG = BIT(10) }
	SD card specific data flags. More...
enum	sd_scr_flag { SD_SCR_DATA_STATUS_AFTER_ERASE = BIT(0) , SD_SCR_SPEC3 = BIT(1) }
	SD card configuration register. More...
enum	sd_spec_version { SD_SPEC_VER1_0 = BIT(0) , SD_SPEC_VER1_1 = BIT(1) , SD_SPEC_VER2_0 = BIT(2) , SD_SPEC_VER3_0 = BIT(3) }
	SD specification version. More...

Macro Definition Documentation

MMC_EXT_CSD_BYTES

#define MMC_EXT_CSD_BYTES   512

SD_IF_COND_CHECK

#define SD_IF_COND_CHECK   0xAA

SD_IF_COND_VHS_3V3

#define SD_IF_COND_VHS_3V3   BIT(8)

SD_IF_COND_VHS_MASK

#define SD_IF_COND_VHS_MASK   (0x0F << 8)

SD_PRODUCT_NAME_BYTES

#define SD_PRODUCT_NAME_BYTES   (5U)

SD_R1_CURRENT_STATE

#define SD_R1_CURRENT_STATE

(

x

)

(((x) & SD_R1_CUR_STATE) >> 9U)

SD_SPI_CMD

#define SD_SPI_CMD   0x3F

SD_SPI_CMD_BODY_SIZE

#define SD_SPI_CMD_BODY_SIZE   (SD_SPI_CMD_SIZE - 1)

SD_SPI_CMD_SIZE

#define SD_SPI_CMD_SIZE   6

SD_SPI_CRC16_SIZE

#define SD_SPI_CRC16_SIZE   2

SD_SPI_RESPONSE_ACCEPTED

#define SD_SPI_RESPONSE_ACCEPTED   0x05

SD_SPI_RESPONSE_CRC_ERR

#define SD_SPI_RESPONSE_CRC_ERR   0x0B

SD_SPI_RESPONSE_WRITE_ERR

#define SD_SPI_RESPONSE_WRITE_ERR   0x0C

SD_SPI_START

#define SD_SPI_START   0x80

SD_SPI_TOKEN_MULTI_WRITE

#define SD_SPI_TOKEN_MULTI_WRITE   0xFC

SD_SPI_TOKEN_SINGLE

#define SD_SPI_TOKEN_SINGLE   0xFE

SD_SPI_TOKEN_STOP_TRAN

#define SD_SPI_TOKEN_STOP_TRAN   0xFD

SD_SPI_TX

#define SD_SPI_TX   0x40

SDIO_IO_OCR_MASK

#define SDIO_IO_OCR_MASK   (0xFFFFFFU)

SDIO_OCR_IO_NUMBER_SHIFT

#define SDIO_OCR_IO_NUMBER_SHIFT   (28U)

SDMMC_DEFAULT_BLOCK_SIZE

#define SDMMC_DEFAULT_BLOCK_SIZE   (512U)

Enumeration Type Documentation

hs_max_data_rate

enum hs_max_data_rate

Enumerator
HS_MAX_DTR

mmc_csd_freq

enum mmc_csd_freq

MMC Maximum Frequency.

Max freq in MMC csd

Enumerator
MMC_MAXFREQ_100KHZ
MMC_MAXFREQ_1MHZ
MMC_MAXFREQ_10MHZ
MMC_MAXFREQ_100MHZ
MMC_MAXFREQ_MULT_10
MMC_MAXFREQ_MULT_12
MMC_MAXFREQ_MULT_13
MMC_MAXFREQ_MULT_15
MMC_MAXFREQ_MULT_20
MMC_MAXFREQ_MULT_26
MMC_MAXFREQ_MULT_30
MMC_MAXFREQ_MULT_35
MMC_MAXFREQ_MULT_40
MMC_MAXFREQ_MULT_45
MMC_MAXFREQ_MULT_52
MMC_MAXFREQ_MULT_55
MMC_MAXFREQ_MULT_60
MMC_MAXFREQ_MULT_70
MMC_MAXFREQ_MULT_80

mmc_driver_strengths

enum mmc_driver_strengths

MMC Driver Strengths.

Encoded in EXT_CSD

Enumerator
mmc_driv_type0
mmc_driv_type1
mmc_driv_type2
mmc_driv_type3
mmc_driv_type4

mmc_ext_csd_rev

enum mmc_ext_csd_rev

CSD Revision.

Value of CSD rev in EXT_CSD

Enumerator
MMC_5_1
MMC_5_0
MMC_4_5
MMC_4_4
MMC_4_3
MMC_4_2
MMC_4_1
MMC_4_0

mmc_ocr_flag

enum mmc_ocr_flag

MMC OCR bit flags.

bit flags present in MMC OCR response. Used to determine status and supported functions of MMC card.

Enumerator
MMC_OCR_VDD170_195FLAG
MMC_OCR_VDD20_26FLAG
MMC_OCR_VDD27_36FLAG
MMC_OCR_SECTOR_MODE
MMC_OCR_PWR_BUSY_FLAG

mmc_timing_mode

enum mmc_timing_mode

MMC Timing Modes.

MMC Timing Mode, encoded in EXT_CSD

Enumerator
MMC_LEGACY_TIMING
MMC_HS_TIMING
MMC_HS200_TIMING
MMC_HS400_TIMING

sd_app_cmd

enum sd_app_cmd

SD application command opcodes.

all application command opcodes must be prefixed with a CMD55 command to inform the SD card the next command is an application-specific one.

Enumerator
SD_APP_SET_BUS_WIDTH
SD_APP_SEND_STATUS
SD_APP_SEND_NUM_WRITTEN_BLK
SD_APP_SET_WRITE_BLK_ERASE_CNT
SD_APP_SEND_OP_COND
SD_APP_CLEAR_CARD_DETECT
SD_APP_SEND_SCR

sd_bus_speed

enum sd_bus_speed

SD bus speed support bit flags.

Bit flags indicating support for SD bus speeds. these bit flags are provided as a response to CMD6 by the card

Enumerator
UHS_SDR12_BUS_SPEED
HIGH_SPEED_BUS_SPEED
UHS_SDR25_BUS_SPEED
UHS_SDR50_BUS_SPEED
UHS_SDR104_BUS_SPEED
UHS_DDR50_BUS_SPEED

sd_csd_flag

enum sd_csd_flag

SD card specific data flags.

flags used in decoding the SD card specific data register

Enumerator
SD_CSD_READ_BLK_PARTIAL_FLAG	Partial blocks for read allowed [79:79].
SD_CSD_WRITE_BLK_MISALIGN_FLAG	Write block misalignment [78:78].
SD_CSD_READ_BLK_MISALIGN_FLAG	Read block misalignment [77:77].
SD_CSD_DSR_IMPLEMENTED_FLAG	DSR implemented [76:76].
SD_CSD_ERASE_BLK_EN_FLAG	Erase single block enabled [46:46].
SD_CSD_WRITE_PROTECT_GRP_EN_FLAG	Write protect group enabled [31:31].
SD_CSD_WRITE_BLK_PARTIAL_FLAG	Partial blocks for write allowed [21:21].
SD_CSD_FILE_FMT_GRP_FLAG	File format group [15:15].
SD_CSD_COPY_FLAG	Copy flag [14:14].
SD_CSD_PERMANENT_WRITE_PROTECT_FLAG	Permanent write protection [13:13].
SD_CSD_TMP_WRITE_PROTECT_FLAG	Temporary write protection [12:12].

sd_current_limit

enum sd_current_limit

SD current support bitfield.

Used with CMD6 to determine the maximum current the card will draw.

Enumerator
SD_MAX_CURRENT_200MA	default current limit
SD_MAX_CURRENT_400MA	current limit to 400MA
SD_MAX_CURRENT_600MA	current limit to 600MA
SD_MAX_CURRENT_800MA	current limit to 800MA

sd_current_setting

enum sd_current_setting

SD current setting values.

Used with CMD6 to inform the card what its maximum current draw is.

Enumerator
SD_SET_CURRENT_200MA
SD_SET_CURRENT_400MA
SD_SET_CURRENT_600MA
SD_SET_CURRENT_800MA

sd_driver_strength

enum sd_driver_strength

SD switch drive type selection.

These values are used to select the preferred driver type for an SD card.

Enumerator
SD_DRV_STRENGTH_TYPEB	default driver strength
SD_DRV_STRENGTH_TYPEA	driver strength TYPE A
SD_DRV_STRENGTH_TYPEC	driver strength TYPE C
SD_DRV_STRENGTH_TYPED	driver strength TYPE D

sd_driver_type

enum sd_driver_type

SD driver types.

Used with CMD6 to determine the driver type the card should use.

Enumerator
SD_DRIVER_TYPE_B
SD_DRIVER_TYPE_A
SD_DRIVER_TYPE_C
SD_DRIVER_TYPE_D

sd_group_num

enum sd_group_num

SD switch group numbers.

SD CMD6 has multiple function groups it can check/set. These indicies are used to determine which group CMD6 will interact with.

Enumerator
SD_GRP_TIMING_MODE	access mode group
SD_GRP_CMD_SYS_MODE	command system group
SD_GRP_DRIVER_STRENGTH_MODE	driver strength group
SD_GRP_CURRENT_LIMIT_MODE	current limit group

sd_ocr_flag

enum sd_ocr_flag

SD OCR bit flags.

bit flags present in SD OCR response. Used to determine status and supported functions of SD card.

Enumerator
SD_OCR_PWR_BUSY_FLAG	Power up busy status.
SD_OCR_HOST_CAP_FLAG	Card capacity status.
SD_OCR_CARD_CAP_FLAG	Card capacity status.
SD_OCR_SWITCH_18_REQ_FLAG	Switch to 1.8V request.
SD_OCR_SWITCH_18_ACCEPT_FLAG	Switch to 1.8V accepted.
SD_OCR_VDD27_28FLAG	VDD 2.7-2.8.
SD_OCR_VDD28_29FLAG	VDD 2.8-2.9.
SD_OCR_VDD29_30FLAG	VDD 2.9-3.0.
SD_OCR_VDD30_31FLAG	VDD 2.9-3.0.
SD_OCR_VDD31_32FLAG	VDD 3.0-3.1.
SD_OCR_VDD32_33FLAG	VDD 3.1-3.2.
SD_OCR_VDD33_34FLAG	VDD 3.2-3.3.
SD_OCR_VDD34_35FLAG	VDD 3.3-3.4.
SD_OCR_VDD35_36FLAG	VDD 3.4-3.5.

sd_opcode

enum sd_opcode

SD specification command opcodes.

SD specification command opcodes. Note that some command opcodes are specific to SDIO cards, or cards running in SPI mode instead of native SD mode.

Enumerator
SD_GO_IDLE_STATE
MMC_SEND_OP_COND
SD_ALL_SEND_CID
SD_SEND_RELATIVE_ADDR
MMC_SEND_RELATIVE_ADDR
SDIO_SEND_OP_COND
SD_SWITCH
SD_SELECT_CARD
SD_SEND_IF_COND
MMC_SEND_EXT_CSD
SD_SEND_CSD
SD_SEND_CID
SD_VOL_SWITCH
SD_STOP_TRANSMISSION
SD_SEND_STATUS
MMC_CHECK_BUS_TEST
SD_GO_INACTIVE_STATE
SD_SET_BLOCK_SIZE
SD_READ_SINGLE_BLOCK
SD_READ_MULTIPLE_BLOCK
SD_SEND_TUNING_BLOCK
MMC_SEND_BUS_TEST
MMC_SEND_TUNING_BLOCK
SD_SET_BLOCK_COUNT
SD_WRITE_SINGLE_BLOCK
SD_WRITE_MULTIPLE_BLOCK
SD_ERASE_BLOCK_START
SD_ERASE_BLOCK_END
SD_ERASE_BLOCK_OPERATION
SD_APP_CMD
SD_SPI_READ_OCR
SD_SPI_CRC_ON_OFF

sd_r1_current_state

enum sd_r1_current_state

SD current state values.

SD current state values, contained in R1 response data.

Enumerator
SDMMC_R1_IDLE
SDMMC_R1_READY
SDMMC_R1_IDENTIFY
SDMMC_R1_STANDBY
SDMMC_R1_TRANSFER
SDMMC_R1_SEND_DATA
SDMMC_R1_RECIVE_DATA
SDMMC_R1_PROGRAM
SDMMC_R1_DISCONNECT

sd_r1_status

enum sd_r1_status

Native SD mode R1 response status flags.

Native response flags for SD R1 response, used to check for error in command.

Enumerator
SD_R1_AUTH_ERR
SD_R1_APP_CMD
SD_R1_FX_EVENT
SD_R1_RDY_DATA
SD_R1_CUR_STATE
SD_R1_ERASE_RESET
SD_R1_ECC_DISABLED
SD_R1_ERASE_SKIP
SD_R1_CSD_OVERWRITE
SD_R1_ERR
SD_R1_CC_ERR
SD_R1_ECC_FAIL
SD_R1_ILLEGAL_CMD
SD_R1_CRC_ERR
SD_R1_UNLOCK_FAIL
SD_R1_CARD_LOCKED
SD_R1_WP_VIOLATION
SD_R1_ERASE_PARAM
SD_R1_ERASE_SEQ_ERR
SD_R1_BLOCK_LEN_ERR
SD_R1_ADDR_ERR
SD_R1_OUT_OF_RANGE
SD_R1_ERR_FLAGS
SD_R1ERR_NONE

sd_rsp_type

enum sd_rsp_type

SD response types.

SD response types. Note that SPI mode has difference response types than cards in native SD mode.

Enumerator
SD_RSP_TYPE_NONE
SD_RSP_TYPE_R1
SD_RSP_TYPE_R1b
SD_RSP_TYPE_R2
SD_RSP_TYPE_R3
SD_RSP_TYPE_R4
SD_RSP_TYPE_R5
SD_RSP_TYPE_R5b
SD_RSP_TYPE_R6
SD_RSP_TYPE_R7
SD_SPI_RSP_TYPE_R1
SD_SPI_RSP_TYPE_R1b
SD_SPI_RSP_TYPE_R2
SD_SPI_RSP_TYPE_R3
SD_SPI_RSP_TYPE_R4
SD_SPI_RSP_TYPE_R5
SD_SPI_RSP_TYPE_R7

sd_scr_flag

enum sd_scr_flag

SD card configuration register.

flags used in decoding the SD card configuration register

Enumerator
SD_SCR_DATA_STATUS_AFTER_ERASE	Data status after erases [55:55].
SD_SCR_SPEC3	Specification version 3.00 or higher [47:47].

sd_spec_version

enum sd_spec_version

SD specification version.

SD spec version flags used in decoding the SD card configuration register

Enumerator
SD_SPEC_VER1_0	SD card version 1.0-1.01.
SD_SPEC_VER1_1	SD card version 1.10.
SD_SPEC_VER2_0	SD card version 2.00.
SD_SPEC_VER3_0	SD card version 3.0.

sd_spi_r1_error_flag

enum sd_spi_r1_error_flag

SPI SD mode R1 response status flags.

SPI mode R1 response flags. Used to check for error in SD SPI mode command.

Enumerator
SD_SPI_R1PARAMETER_ERR
SD_SPI_R1ADDRESS_ERR
SD_SPI_R1ERASE_SEQ_ERR
SD_SPI_R1CMD_CRC_ERR
SD_SPI_R1ILLEGAL_CMD_ERR
SD_SPI_R1ERASE_RESET
SD_SPI_R1IDLE_STATE

sd_spi_r2_status

enum sd_spi_r2_status

SPI SD mode R2 response status flags.

SPI mode R2 response flags. Sent in response to SEND_STATUS command. Used to check status of SD card.

Enumerator
SDHC_SPI_R2_CARD_LOCKED
SDHC_SPI_R2_UNLOCK_FAIL
SDHC_SPI_R2_ERR
SDHC_SPI_R2_CC_ERR
SDHC_SPI_R2_ECC_FAIL
SDHC_SPI_R2_WP_VIOLATION
SDHC_SPI_R2_ERASE_PARAM
SDHC_SPI_R2_OUT_OF_RANGE

sd_support_flag

enum sd_support_flag

SD support flags.

flags used by SD subsystem to determine support for SD card features.

Enumerator
SD_HIGH_CAPACITY_FLAG
SD_4BITS_WIDTH
SD_SDHC_FLAG
SD_SDXC_FLAG
SD_1800MV_FLAG
SD_3000MV_FLAG
SD_CMD23_FLAG
SD_SPEED_CLASS_CONTROL_FLAG

sd_switch_arg

enum sd_switch_arg

SD switch arguments.

SD CMD6 can either check or set a function. Bitfields are used to indicate feature support when checking a function, and when setting a function an integer value is used to select it.

Enumerator
SD_SWITCH_CHECK	SD switch mode 0: check function.
SD_SWITCH_SET	SD switch mode 1: set function.

sd_timing_mode

enum sd_timing_mode

SD timing mode function selection values.

sent to the card via CMD6 to select a card speed, and used by SD host controller to identify timing of card.

Enumerator
SD_TIMING_SDR12	Default mode & SDR12.
SD_TIMING_SDR25	High speed mode & SDR25.
SD_TIMING_SDR50	SDR50 mode.
SD_TIMING_SDR104	SDR104 mode.
SD_TIMING_DDR50	DDR50 mode.

sdhc_clock_speed

enum sdhc_clock_speed

SD host controller clock speed.

Controls the SD host controller clock speed on the SD bus.

Enumerator
SDMMC_CLOCK_400KHZ
SD_CLOCK_25MHZ
SD_CLOCK_50MHZ
SD_CLOCK_100MHZ
SD_CLOCK_208MHZ
MMC_CLOCK_26MHZ
MMC_CLOCK_52MHZ
MMC_CLOCK_DDR52
MMC_CLOCK_HS200
MMC_CLOCK_HS400

sdio_ocr_flag

enum sdio_ocr_flag

SDIO OCR bit flags.

bit flags present in SDIO OCR response. Used to determine status and supported functions of SDIO card.

Enumerator
SDIO_OCR_IO_READY_FLAG
SDIO_OCR_IO_NUMBER	Number of io function.
SDIO_OCR_MEM_PRESENT_FLAG	Memory present flag.
SDIO_OCR_180_VOL_FLAG	Switch to 1.8v signalling.
SDIO_OCR_VDD20_21FLAG	VDD 2.0-2.1.
SDIO_OCR_VDD21_22FLAG	VDD 2.1-2.2.
SDIO_OCR_VDD22_23FLAG	VDD 2.2-2.3.
SDIO_OCR_VDD23_24FLAG	VDD 2.3-2.4.
SDIO_OCR_VDD24_25FLAG	VDD 2.4-2.5.
SDIO_OCR_VDD25_26FLAG	VDD 2.5-2.6.
SDIO_OCR_VDD26_27FLAG	VDD 2.6-2.7.
SDIO_OCR_VDD27_28FLAG	VDD 2.7-2.8.
SDIO_OCR_VDD28_29FLAG	VDD 2.8-2.9.
SDIO_OCR_VDD29_30FLAG	VDD 2.9-3.0.
SDIO_OCR_VDD30_31FLAG	VDD 2.9-3.0.
SDIO_OCR_VDD31_32FLAG	VDD 3.0-3.1.
SDIO_OCR_VDD32_33FLAG	VDD 3.1-3.2.
SDIO_OCR_VDD33_34FLAG	VDD 3.2-3.3.
SDIO_OCR_VDD34_35FLAG	VDD 3.3-3.4.
SDIO_OCR_VDD35_36FLAG	VDD 3.4-3.5.