hpm_spi_sdcard.c File Reference

#include "stdio.h"
#include "hpm_spi_sdcard.h"
#include "board.h"

Macros
#define	SPI_SD_LOG(...)
#define	CSD_VERSION_V1_0   (0U)
#define	CSD_VERSION_V2_0   (1U)
#define	CSD_VERSION_V3_0   (2U)
#define	CMD_WAIT_RESP_TIMEOUT   (0xFFFFFFFFU)
#define	SPI_SPEED_INIT_HZ   (400000U)
#define	SPI_SD_SPEED_MAX_HZ   (20000000U)
#define	SPI_SD_AUTO_PROBE_COUNT   (5U)
#define	SPI_SPEED_PROBE_FREQ   (12000000U)
#define	CRC16_CCITT_SEED   0
#define	CRC16_CCITT_POLY16   0x1021
#define	SPI_SD_RETRY_COUNT   (5U)

Functions
static hpm_stat_t	send_sdcard_command (uint8_t cmd, uint32_t arg, uint8_t crc)
static hpm_stat_t	read_sdcard_buffer (uint8_t *buf, uint32_t len)
static hpm_stat_t	read_sdcard_info (spi_sdcard_info_t *cardinfo)
static uint8_t	crc7_calc (uint8_t *data, uint8_t len)
static bool	check_cid_data (bool check_crc)
static hpm_stat_t	sdcard_wait_not_busy (void)
static uint8_t	sdcard_read_r1_status (void)
static hpm_stat_t	sdcard_wait_data_token (uint8_t token)
hpm_stat_t	sdcard_spi_status (void)
hpm_stat_t	sdcard_spi_init (sdcard_spi_interface_t *spi_io)
hpm_stat_t	sdcard_spi_get_card_info (spi_sdcard_info_t *cardinfo)
hpm_stat_t	sdcard_spi_read_block (uint32_t sector, uint8_t *buffer)
hpm_stat_t	sdcard_spi_write_block (uint32_t sector, uint8_t *buffer)
hpm_stat_t	sdcard_spi_read_multi_block (uint8_t *buffer, uint32_t start_sector, uint32_t num_sectors)
hpm_stat_t	sdcard_spi_write_multi_block (uint8_t *buffer, uint32_t sector, uint32_t num_sectors)

Variables
static volatile sdcard_type_t	g_card_type
static spi_sdcard_info_t	g_card_info
static volatile bool	sdcard_init_status
static volatile sdcard_spi_interface_t *	g_spi_dev = NULL
static volatile uint32_t	g_spi_max_speed
static uint8_t	dummy_write_byte = 0xFFU
static uint8_t	dummy_read_byte

Macro Definition Documentation

CMD_WAIT_RESP_TIMEOUT

#define CMD_WAIT_RESP_TIMEOUT   (0xFFFFFFFFU)

CRC16_CCITT_POLY16

#define CRC16_CCITT_POLY16   0x1021

CRC16_CCITT_SEED

#define CRC16_CCITT_SEED   0

CSD_VERSION_V1_0

#define CSD_VERSION_V1_0   (0U)

CSD_VERSION_V2_0

#define CSD_VERSION_V2_0   (1U)

CSD_VERSION_V3_0

#define CSD_VERSION_V3_0   (2U)

SPI_SD_AUTO_PROBE_COUNT

#define SPI_SD_AUTO_PROBE_COUNT   (5U)

SPI_SD_LOG

#define SPI_SD_LOG

(

...

)

SPI_SD_RETRY_COUNT

#define SPI_SD_RETRY_COUNT   (5U)

SPI_SD_SPEED_MAX_HZ

#define SPI_SD_SPEED_MAX_HZ   (20000000U)

SPI_SPEED_INIT_HZ

#define SPI_SPEED_INIT_HZ   (400000U)

SPI_SPEED_PROBE_FREQ

#define SPI_SPEED_PROBE_FREQ   (12000000U)

Function Documentation

check_cid_data()

static bool check_cid_data ( bool  check_crc )

static

crc7_calc()

static uint8_t crc7_calc ( uint8_t *  data, uint8_t  len  )

static

read_sdcard_buffer()

static hpm_stat_t read_sdcard_buffer ( uint8_t *  buf, uint32_t  len  )

static

read_sdcard_info()

static hpm_stat_t read_sdcard_info ( spi_sdcard_info_t *  cardinfo )

static

sdcard_read_r1_status()

static uint8_t sdcard_read_r1_status ( void  )

static

sdcard_spi_get_card_info()

hpm_stat_t sdcard_spi_get_card_info

(

spi_sdcard_info_t *

cardinfo

)

sdcard_spi_init()

hpm_stat_t sdcard_spi_init

(

sdcard_spi_interface_t *

spi_io

)

sdcard_spi_read_block()

hpm_stat_t sdcard_spi_read_block	(	uint32_t	sector,
		uint8_t *	buffer
	)

sdcard_spi_read_multi_block()

hpm_stat_t sdcard_spi_read_multi_block	(	uint8_t *	buffer,
		uint32_t	start_sector,
		uint32_t	num_sectors
	)

sdcard_spi_status()

hpm_stat_t sdcard_spi_status

(

void

)

sdcard_spi_write_block()

hpm_stat_t sdcard_spi_write_block	(	uint32_t	sector,
		uint8_t *	buffer
	)

sdcard_spi_write_multi_block()

hpm_stat_t sdcard_spi_write_multi_block	(	uint8_t *	buffer,
		uint32_t	sector,
		uint32_t	num_sectors
	)

sdcard_wait_data_token()

static hpm_stat_t sdcard_wait_data_token ( uint8_t  token )

static

sdcard_wait_not_busy()

static hpm_stat_t sdcard_wait_not_busy ( void  )

static

send_sdcard_command()

static hpm_stat_t send_sdcard_command ( uint8_t  cmd, uint32_t  arg, uint8_t  crc  )

static

Variable Documentation

dummy_read_byte

uint8_t dummy_read_byte

static

dummy_write_byte

uint8_t dummy_write_byte = 0xFFU

static

g_card_info

spi_sdcard_info_t g_card_info

static

g_card_type

volatile sdcard_type_t g_card_type

static

g_spi_dev

volatile sdcard_spi_interface_t* g_spi_dev = NULL

static

g_spi_max_speed

volatile uint32_t g_spi_max_speed

static

sdcard_init_status

volatile bool sdcard_init_status

static