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sdmmc.h File Reference
SDIO/SD/MMC device API using a low-level peripheral driver. More...
Detailed Description
SDIO/SD/MMC device API using a low-level peripheral driver.
Definition in file sdmmc.h.
#include <errno.h>#include "assert.h"#include "byteorder.h"#include "macros/units.h"#include "periph_conf.h"#include "xfa.h"
Include dependency graph for sdmmc.h: This graph shows which files directly or indirectly include this file:Go to the source code of this file.
Data Structures | |
| union | sdmmc_card_status_t |
| SD/MMC Card status as structure. More... | |
| struct | sdmmc_sd_status_t |
| SD Status (SD Memory Card only) More... | |
| struct | sdmmc_cid_sd_t |
| CID register structure (SD Memory Cards) More... | |
| struct | sdmmc_cid_mmc_t |
| CID register structure (MMC) More... | |
| union | sdmmc_cid_t |
| CID register structure (SD Memory and MMC Cards) More... | |
| struct | sdmmc_csd_v1_t |
| CSD register structure Version 1.0. More... | |
| struct | sdmmc_csd_v2_t |
| CSD register structure Version 2.0 and Version 3.0. More... | |
| struct | sdmmc_csd_mmc_t |
| CSD register structure for MMC. More... | |
| union | sdmmc_csd_t |
| CSD register (SD Memory Card and MMC) More... | |
| struct | sdmmc_ext_csd_t |
| Extended CSD (EXT_CSD) register structure (MMC only) More... | |
| struct | sdmmc_scr_t |
| SCR register structure (SD Memory Card only) More... | |
| struct | sdmmc_xfer_desc_t |
| Transfer descriptor. More... | |
| struct | sdmmc_driver_t |
| Low-level SDIO/SD/MMC peripheral driver. More... | |
| struct | sdmmc_dev |
| SDIO/SD/MMC device descriptor. More... | |
Macros | |
| #define | SDMMC_CPU_DMA_REQUIREMENTS |
| CPU-specific requirements for SDIO/SD/MMC buffers. | |
| #define | sdmmc_buf_t SDMMC_CPU_DMA_REQUIREMENTS uint8_t |
| Instantiation type for SDIO/SD/MMC buffers. | |
| #define | SDMMC_SDHC_BLOCK_SIZE (512) |
| Size of a single data block on SDHC/SDXC Cards in bytes. | |
| #define | SDMMC_CARD_TYPE_SD |
| Mask for any type of SD Memory card. | |
| #define | SDMMC_NUMOF XFA_LEN(sdmmc_dev_t *, sdmmc_devs) |
| Number of SDIO/SD/MMC devices defined. | |
Typedefs | |
| typedef struct sdmmc_dev | sdmmc_dev_t |
| sdmmc_dev_t forward declaration | |
| typedef void(* | sdmmc_event_cb_t) (sdmmc_dev_t *dev, sdmmc_event_t event) |
| Event callback function type. | |
Enumerations | |
| enum | sdmmc_card_type_t { SDMMC_CARD_TYPE_UNKNOWN = 0x00 , SDMMC_CARD_TYPE_SDSC_V1 = 0x01 , SDMMC_CARD_TYPE_SDSC_V2_V3 = 0x02 , SDMMC_CARD_TYPE_SDHC_SDXC = 0x04 , SDMMC_CARD_TYPE_SDIO = 0x40 , SDMMC_CARD_TYPE_MMC = 0x80 } |
| SDIO/SD/MMC Card types. More... | |
| enum | sdmmc_bus_width_t { SDMMC_BUS_WIDTH_1BIT = 1 , SDMMC_BUS_WIDTH_4BIT = 4 , SDMMC_BUS_WIDTH_8BIT = 8 } |
| SDIO/SD/MMC Card data bus widths. More... | |
| enum | sdmmc_clock_rate_t { SDMMC_CLK_400K = KHZ(400) , SDMMC_CLK_20M = MHZ(20) , SDMMC_CLK_25M = MHZ(25) , SDMMC_CLK_26M = MHZ(26) , SDMMC_CLK_50M = MHZ(50) , SDMMC_CLK_52M = MHZ(52) } |
| SDIO/SD/MMC Card clock rate types. More... | |
| enum | sdmmc_xfer_type_t { SDMMC_MULTIBYTE , SDMMC_BLOCK , SDMMC_STREAM } |
| Data transfer types. More... | |
| enum | sdmmc_auto_cmd_t { SDMMC_AUTO_CMD_NONE = 0x00 , SDMMC_AUTO_CMD12 = 0x01 , SDMMC_AUTO_CMD23 = 0x02 , SDMMC_AUTO_CMD_BOTH = 0x03 } |
| Auto Command features supported by the SDIO/SD/MMC peripheral. More... | |
| enum | sdmmc_event_t { SDMMC_EVENT_CARD_INSERTED , SDMMC_EVENT_CARD_REMOVED } |
| Events generated by SDIO/SD/MMC high level API. More... | |
Functions | |
| static sdmmc_dev_t * | sdmmc_get_dev (unsigned num) |
| Retrieve SDIO/SD/MMC device descriptor reference from device index. | |
| static void | sdmmc_init (sdmmc_dev_t *dev) |
| Basic initialization of the given SDIO/SD/MMC device. | |
| int | sdmmc_send_cmd (sdmmc_dev_t *dev, sdmmc_cmd_t cmd_idx, uint32_t arg, sdmmc_resp_t resp_type, uint32_t *resp) |
| Send command to SDIO/SD/MMC Card and optionally wait for response. | |
| int | sdmmc_send_acmd (sdmmc_dev_t *dev, sdmmc_cmd_t cmd_idx, uint32_t arg, sdmmc_resp_t resp_type, uint32_t *resp) |
| Send application specific command optionally wait for response. | |
| int | sdmmc_card_init (sdmmc_dev_t *dev) |
| Card Initialization and Identification. | |
| int | sdmmc_xfer (sdmmc_dev_t *dev, sdmmc_cmd_t cmd_idx, uint32_t arg, uint16_t block_size, uint16_t block_num, const void *data_wr, void *data_rd, uint16_t *done) |
| Perform a data transfer with the selected card or embedded device. | |
| int | sdmmc_read_blocks (sdmmc_dev_t *dev, uint32_t block_addr, uint16_t block_size, uint16_t block_num, void *data, uint16_t *done) |
| Read a number of blocks. | |
| int | sdmmc_write_blocks (sdmmc_dev_t *dev, uint32_t block_addr, uint16_t block_size, uint16_t block_num, const void *data, uint16_t *done) |
| Write a number of blocks. | |
| int | sdmmc_erase_blocks (sdmmc_dev_t *dev, uint32_t block_addr, uint16_t block_num) |
| Erase a number of blocks. | |
| int | sdmmc_read_sds (sdmmc_dev_t *dev, sdmmc_sd_status_t *sds) |
| Read SD Status Register. | |
| uint64_t | sdmmc_get_capacity (sdmmc_dev_t *dev) |
| Get Capacity of SD/MMC Card. | |
Variables | |
| sdmmc_dev_t | sdmmc_devs [] |
| SDIO/SD/MMC device descriptor references as read-only XFA. | |
Command and Response related definitions | |
| #define | SDMMC_CMD(n) (n) |
| Command index. | |
| #define | SDMMC_ACMD_PREFIX (1 << 7) |
| Application specific command index prefix (Bit is 7 used) | |
| #define | SDMMC_ACMD(n) (SDMMC_ACMD_PREFIX | SDMMC_CMD(n)) |
| Application specific command index. | |
| #define | SDMMC_CMD_NO_ARG (0x00000000UL) |
| Command argument if no argument is required. | |
| #define | SDMMC_CMD_ARG_RCA(n) ((uint32_t)n << 16) |
| Command argument if RCA is used in addressed commands. | |
| #define | SDMMC_RESP_CRC (1UL << 4) |
| Mask to check whether the response type uses CRC7. | |
| #define | SDMMC_RESP_BUSY (1UL << 5) |
| Mask to check whether the response includes busy status from card. | |
| #define | SDMMC_RESP_IDX (0xf) |
| Mask of response index. | |
| enum | sdmmc_cmd_t { SDMMC_CMD0 = SDMMC_CMD(0) , SDMMC_CMD1 = SDMMC_CMD(1) , SDMMC_CMD2 = SDMMC_CMD(2) , SDMMC_CMD3 = SDMMC_CMD(3) , SDMMC_CMD4 = SDMMC_CMD(4) , SDMMC_CMD5 = SDMMC_CMD(5) , SDMMC_CMD6 = SDMMC_CMD(6) , SDMMC_CMD7 = SDMMC_CMD(7) , SDMMC_CMD8 = SDMMC_CMD(8) , SDMMC_CMD9 = SDMMC_CMD(9) , SDMMC_CMD10 = SDMMC_CMD(10) , SDMMC_CMD12 = SDMMC_CMD(12) , SDMMC_CMD13 = SDMMC_CMD(13) , SDMMC_CMD16 = SDMMC_CMD(16) , SDMMC_CMD17 = SDMMC_CMD(17) , SDMMC_CMD18 = SDMMC_CMD(18) , SDMMC_CMD23 = SDMMC_CMD(23) , SDMMC_CMD24 = SDMMC_CMD(24) , SDMMC_CMD25 = SDMMC_CMD(25) , SDMMC_CMD32 = SDMMC_CMD(32) , SDMMC_CMD33 = SDMMC_CMD(33) , SDMMC_CMD38 = SDMMC_CMD(38) , SDMMC_CMD52 = SDMMC_CMD(52) , SDMMC_CMD53 = SDMMC_CMD(53) , SDMMC_CMD55 = SDMMC_CMD(55) , SDMMC_CMD58 = SDMMC_CMD(58) , SDMMC_CMD59 = SDMMC_CMD(59) , SDMMC_ACMD6 = SDMMC_ACMD(6) , SDMMC_ACMD13 = SDMMC_ACMD(13) , SDMMC_ACMD23 = SDMMC_ACMD(23) , SDMMC_ACMD41 = SDMMC_ACMD(41) , SDMMC_ACMD51 = SDMMC_ACMD(51) } |
| SDIO/SD/MMC Commands. More... | |
| enum | sdmmc_resp_t { SDMMC_NO_R = 0 , SDMMC_R1 = 1 | SDMMC_RESP_CRC , SDMMC_R1B , SDMMC_R2 = 2 | SDMMC_RESP_CRC , SDMMC_R3 = 3 , SDMMC_R4 = 4 , SDMMC_R5 = 5 | SDMMC_RESP_CRC , SDMMC_R6 = 6 | SDMMC_RESP_CRC , SDMMC_R7 = 7 | SDMMC_RESP_CRC } |
| SDIO/SD/MMC Response types. More... | |
Definitions used for CMD8 - SEND_IF_COND (SD only) | |
| |
| #define | SDMMC_CMD8_CHECK_PATTERN (0xaa) |
| Check pattern, 0xAA recommended. | |
| #define | SDMMC_CMD8_VHS_27_36V (0b0001 << 8) |
| Voltage Supplied by host 2.7-3.6V. | |
| #define | SDMMC_CMD8_PCIE_AVAIL (1 << 12) |
| PCIe Availability (not yet used) | |
| #define | SDMMC_CMD8_PCIE_12V (1 << 13) |
| PCIe 1.2V Support (not yet used) | |
| #define | SDMMC_CMD8_CHECK (SDMMC_CMD8_VHS_27_36V | SDMMC_CMD8_CHECK_PATTERN) |
| Command argument used in CMD8. | |
OCR Register Definition | |
| |
| #define | SDMMC_OCR_18V (1UL << 7) |
| Low Voltage Range. | |
| #define | SDMMC_OCR_27_28V (1UL << 15) |
| 2.7V to 2.8V Range | |
| #define | SDMMC_OCR_28_29V (1UL << 16) |
| 2.8V to 2.9V Range | |
| #define | SDMMC_OCR_29_30V (1UL << 17) |
| 2.9V to 3.0V Range | |
| #define | SDMMC_OCR_30_31V (1UL << 18) |
| 3.0V to 3.1V Range | |
| #define | SDMMC_OCR_31_32V (1UL << 19) |
| 3.1V to 3.2V Range | |
| #define | SDMMC_OCR_32_33V (1UL << 20) |
| 3.2V to 3.3V Range | |
| #define | SDMMC_OCR_33_34V (1UL << 21) |
| 3.3V to 3.4V Range | |
| #define | SDMMC_OCR_34_35V (1UL << 22) |
| 3.4V to 3.5V Range | |
| #define | SDMMC_OCR_35_36V (1UL << 23) |
| 3.5V to 3.6V Range | |
| #define | SDMMC_OCR_S18A (1UL << 24) |
| Switching to 1.8V Accepted. | |
| #define | SDMMC_OCR_OVER_2TB (1UL << 27) |
| Over 2TB support status (CO2T) | |
| #define | SDMMC_OCR_UHS_II (1UL << 29) |
| UHS-II Card Status. | |
| #define | SDMMC_OCR_CCS (1UL << 30) |
| Card Capacity Status (CCS) | |
| #define | SDMMC_OCR_POWER_UP (1UL << 31) |
| Card power up status bit (busy) | |
| #define | SDMMC_OCR_ALL_VOLTAGES |
| Voltage profile for the range 2.7-3.6V as defined for MMC. | |
SDIO/SD/MMC Card status as returned in responses R1 to CMD13 with b[15]=0 | |
| |
| #define | SDMMC_CARD_STATUS_OUT_OF_RANGE (1UL << 31) |
| SD/SDIO and MMC. | |
| #define | SDMMC_CARD_STATUS_ADDRESS_ERROR (1UL << 30) |
| SD and MMC. | |
| #define | SDMMC_CARD_STATUS_BLOCK_LEN_ERROR (1UL << 29) |
| SD and MMC. | |
| #define | SDMMC_CARD_STATUS_ERASE_SEQ_ERROR (1UL << 28) |
| SD and MMC. | |
| #define | SDMMC_CARD_STATUS_ERASE_PARAM (1UL << 27) |
| SD and MMC. | |
| #define | SDMMC_CARD_STATUS_WP_VIOLATION (1UL << 26) |
| SD and MMC. | |
| #define | SDMMC_CARD_STATUS_CARD_IS_LOCKED (1UL << 25) |
| SD and MMC. | |
| #define | SDMMC_CARD_STATUS_LOCK_UNLOCK_FAILED (1UL << 24) |
| SD/SDIO and MMC. | |
| #define | SDMMC_CARD_STATUS_COM_CRC_ERROR (1UL << 23) |
| SD/SDIO and MMC. | |
| #define | SDMMC_CARD_STATUS_ILLEGAL_COMMAND (1UL << 22) |
| SD and MMC. | |
| #define | SDMMC_CARD_STATUS_CARD_ECC_FAILED (1UL << 21) |
| SD and MMC. | |
| #define | SDMMC_CARD_STATUS_CC_ERROR (1UL << 20) |
| SD and MMC. | |
| #define | SDMMC_CARD_STATUS_ERROR (1UL << 19) |
| SD/SDIO and MMC. | |
| #define | SDMMC_CARD_STATUS_UNDERRUN (1UL << 18) |
| MMC only. | |
| #define | SDMMC_CARD_STATUS_OVERRUN (1UL << 17) |
| MMC only. | |
| #define | SDMMC_CARD_STATUS_CSD_OVERWRITE (1UL << 16) |
| SD (CSD), MMC (CSD and CID) | |
| #define | SDMMC_CARD_STATUS_WP_ERASE_SKIP (1UL << 15) |
| SD and MMC. | |
| #define | SDMMC_CARD_STATUS_CARD_ECC_DISABLED (1UL << 14) |
| SD only. | |
| #define | SDMMC_CARD_STATUS_ERASE_RESET (1UL << 13) |
| SD and MMC. | |
| #define | SDMMC_CARD_STATUS_READY_FOR_DATA (1UL << 8) |
| SD and MMC. | |
| #define | SDMMC_CARD_STATUS_SWITCH_ERROR (1UL << 7) |
| MMC only. | |
| #define | SDMMC_CARD_STATUS_FX_EVENT (1UL << 6) |
| SD only. | |
| #define | SDMMC_CARD_STATUS_APP_CMD (1UL << 5) |
| SD and MMC. | |
| #define | SDMMC_CARD_STATUS_AKE_SEQ_ERROR (1UL << 3) |
| SD only. | |
| #define | SDMMC_CARD_STATUS_ERRORS |
| SD/MMC Card status mask for error flags. | |
| #define | SDMMC_CARD_STATUS_CURRENT_STATE(n) (((n) >> SDMMC_CARD_STATUS_CURRENT_STATE_Pos) & 0x0f) |
| SD/MMC Card status mask for current state. | |
| #define | SDMMC_CARD_STATUS_CURRENT_STATE_Pos (9) |
| CURRENT_STATE position. | |
| enum | { SDMMC_CARD_STATE_IDLE = 0 , SDMMC_CARD_STATE_READY = 1 , SDMMC_CARD_STATE_IDENT = 2 , SDMMC_CARD_STATE_STBY = 3 , SDMMC_CARD_STATE_TRAN = 4 , SDMMC_CARD_STATE_DATA = 5 , SDMMC_CARD_STATE_RCV = 6 , SDMMC_CARD_STATE_PRG = 7 , SDMMC_CARD_STATE_DIS = 8 , SDMMC_CARD_STATE_BTST = 9 } |
| SD/MMC Card states. More... | |
SD Status register (SD Memory Cards) | |
| #define | SDMMC_SD_STATUS_SIZE (64) |
| SD status register size. | |
CID register (SD Memory and MMC Cards) | |
| #define | SDMMC_CID_REG_SIZE (16) |
| CID register size in bytes (CID is 128 bit) | |
| #define | SDMMC_CID_OID_SIZE_SD (2) |
| OID (OEM/Application ID) size in byte (SD) | |
| #define | SDMMC_CID_PNM_SIZE_SD (5) |
| PNM (Product name) size in byte (SD) | |
| #define | SDMMC_CID_PNM_SIZE_MMC (6) |
| PNM (Product name) size in byte (MMC) | |
CSD Register Definitions | |
| |
| #define | SDMMC_CSD_REG_SIZE (16) |
| CSD register size in byte (CSD is 128 bit) | |
| #define | SDMMC_EXT_CSD_REG_SIZE (512) |
| Extended CSD (EXT_CSD) register size in byte (EXT_CSD is 512 byte) | |
| enum | sdmmc_csd_version_t { SDMMC_CSD_V1 = 0 , SDMMC_CSD_V2 = 1 , SDMMC_CSD_V3 = 2 , SDMMC_CSD_Vx = 3 } |
| CSD Register Versions (SD Memory Card and MMC) More... | |
SCR Register Definitions (SD Memory Card only) | |
| |
| #define | SDMMC_SCR_REG_SIZE (8) |
| SCR register size in byte (SCR is 64 bit) | |
| #define | SDMMC_SCR_ACMD_53_54_SUPPORT (0b10000) |
| sdmmc_scr_t::CMD_SUPPORT Secure Receive/Send supported | |
| #define | SDMMC_SCR_ACMD_58_59_SUPPORT (0b01000) |
| sdmmc_scr_t::CMD_SUPPORT Extension Register Multi-Block | |
| #define | SDMMC_SCR_ACMD_48_49_SUPPORT (0b00100) |
| sdmmc_scr_t::CMD_SUPPORT Extension Register Single-Block | |
| #define | SDMMC_SCR_ACMD_23_SUPPORT (0b00010) |
| sdmmc_scr_t::CMD_SUPPORT Set Block Count | |
| #define | SDMMC_SCR_ACMD_20_SUPPORT (0b00001) |
| sdmmc_scr_t::CMD_SUPPORT Speed Class Control | |
| #define | SDMMC_SCR_SD_SPEC(scr) (scr.SD_SPEC + scr.SD_SPEC3 + (scr.SD_SPECX ? scr.SD_SPECX + 1 : scr.SD_SPEC4)) |
| Get Physical Layer Specification Version value from SCR value. | |
| #define | SDMMC_DEV(x) (sdmmc_get_dev(x)) |
| SD/MMC device access macro. | |
