Public interface for the sdcard_spi driver. More...

Detailed Description

Public interface for the sdcard_spi driver.

Author: Michel Rottleuthner miche.nosp@m.l.ro.nosp@m.ttleu.nosp@m.thne.nosp@m.r@haw.nosp@m.-ham.nosp@m.burg..nosp@m.de

Definition in file sdcard_spi.h.

#include "periph/spi.h"
#include "periph/gpio.h"
#include "stdbool.h"

Include dependency graph for sdcard_spi.h:

This graph shows which files directly or indirectly include this file:

Data Structures
struct	cid_t
	CID register see section 5.2 in SD-Spec v5.00. More...

struct	csd_v1_t
	CSD register with csd structure version 1.0 see section 5.3.2 in SD-Spec v5.00. More...

struct	csd_v2_t
	CSD register with csd structure version 2.0 see section 5.3.3 in SD-Spec v5.00. More...

union	csd_t
	CSD register (see section 5.3 in SD-Spec v5.00) More...

struct	sd_status_t
	SD status register (see section 4.10.2 in SD-Spec v5.00) More...

struct	sdcard_spi_params_t
	sdcard_spi device params More...

struct	sdcard_spi_t
	Device descriptor for sdcard_spi. More...

Macros
#define	SD_HC_BLOCK_SIZE (512)
	size of a single block on SDHC cards

#define	SDCARD_SPI_INIT_ERROR (-1)
	returned on failed init

#define	SDCARD_SPI_OK (0)
	returned on successful init

#define	SD_SIZE_OF_OID 2
	OID (OEM/application ID field in CID reg)

#define	SD_SIZE_OF_PNM 5
	PNM (product name field in CID reg)

Enumerations
enum	sd_version_t { SD_V2 , SD_V1 , MMC_V3 , SD_UNKNOWN }
	version type of SD-card More...

enum	sd_rw_response_t { SD_RW_OK = 0 , SD_RW_NO_TOKEN , SD_RW_TIMEOUT , SD_RW_RX_TX_ERROR , SD_RW_WRITE_ERROR , SD_RW_CRC_MISMATCH , SD_RW_NOT_SUPPORTED }
	sdcard_spi r/w-operation return values More...

Functions
int	sdcard_spi_init (sdcard_spi_t card, const sdcard_spi_params_t params)
	Initializes the sd-card with the given parameters in sdcard_spi_t structure.

int	sdcard_spi_read_blocks (sdcard_spi_t card, uint32_t blockaddr, void data, uint16_t blocksize, uint16_t nblocks, sd_rw_response_t *state)
	Reads data blocks (usually multiples of 512 Bytes) from card to buffer.

int	sdcard_spi_write_blocks (sdcard_spi_t card, uint32_t blockaddr, const void data, uint16_t blocksize, uint16_t nblocks, sd_rw_response_t *state)
	Writes data blocks (usually multiples of 512 Bytes) from buffer to card.

uint64_t	sdcard_spi_get_capacity (sdcard_spi_t *card)
	Gets the capacity of the card.

Data Structures