spi_sdcard.c File Reference

#include <stdint.h>
#include <string.h>
#include <spi-generic.h>
#include <spi_sdcard.h>
#include <crc_byte.h>
#include <commonlib/helpers.h>
#include <console/console.h>

Include dependency graph for spi_sdcard.c:

Go to the source code of this file.

Macros
#define	dprintk(fmt, args...)    do {} while (0)
#define	SDCARD_TYPE_SDSC   1
#define	SDCARD_TYPE_SDHC   2
#define	SDCARD_TYPE_SDXC   3
#define	GO_IDLE_STATE   0
#define	SEND_OP_COND   1
#define	SWITCH_FUNC   6
#define	SEND_IF_COND   8
#define	SEND_CSD   9
#define	SEND_CID   10
#define	STOP_TRANSMISSION   12
#define	SEND_STATUS   13
#define	SET_BLOCKLEN   16
#define	READ_SINGLE_BLOCK   17
#define	READ_MULTIPLEBLOCK   18
#define	WRITE_BLOCK   24
#define	WRITE_MULTIPLEBLOCK   25
#define	PROGRAM_CSD   27
#define	SET_WRITE_PROT   28
#define	CLR_WRITE_PROT   29
#define	SEND_WRITE_PROT   30
#define	ERASE_WR_BLK_START_ADDR   32
#define	ERASE_WR_BLK_END_ADDR   33
#define	ERASE   38
#define	LOCK_UNLOCK   42
#define	APP_CMD   55
#define	GEN_CMD   56
#define	READ_OCR   58
#define	CRC_ON_OFF   59
#define	SD_STATUS   13
#define	SEND_NUM_WR_BLOCKS   22
#define	SET_WR_BLK_ERASE_COUNT   23
#define	SD_SEND_OP_COND   41
#define	SET_CLR_CARD_DETECT   42
#define	SEND_SCR   51
#define	CT_BLOCK_START   0xfe
#define	CT_MULTIPLE_BLOCK_START   0xfc
#define	CT_MULTIPLE_BLOCK_STOP   0xfd
#define	CT_RESPONSE_MASK   0x1f
#define	CT_RESPONSE_ACCEPTED   0x05
#define	CT_RESPONSE_REJECTED_CRC   0x0b
#define	CT_RESPONSE_REJECTED_WRITE_ERR   0x0d
#define	RSP_R1   0
#define	RSP_R1b   1
#define	RSP_R2   2
#define	RSP_R3   3
#define	RSP_R4   4
#define	RSP_R5   5
#define	RSP_R7   7
#define	RSP_ERR_CARD_IS_LOCKED   (1 << 0)
#define	RSP_ERR_WP_ERASE_SKIP   (1 << 1)
#define	RSP_ERR_GENERAL   (1 << 2)
#define	RSP_ERR_CC   (1 << 3)
#define	RSP_ERR_ECC   (1 << 4)
#define	RSP_ERR_WP_VIOLATION   (1 << 5)
#define	RSP_ERR_ERASE_PARAM   (1 << 6)
#define	RSP_ERR_OUT_OF_RANGE   (1 << 7)
#define	RSP_ERR_IN_IDLE   (1 << 8)
#define	RSP_ERR_ERASE_RESET   (1 << 9)
#define	RSP_ERR_ILLEGAL_COMMAND   (1 << 10)
#define	RSP_ERR_COM_CRC   (1 << 11)
#define	RSP_ERR_ERASE_SEQUENCE   (1 << 12)
#define	RSP_ERR_ADDRESS   (1 << 13)
#define	RSP_ERR_PARAMETER   (1 << 14)
#define	BLOCK_SIZE   512

Functions
static unsigned long long	extract_bits (uint8_t *buff, int width, int start, int end)
static void	spi_sdcard_enable_cs (const struct spi_sdcard *card)
static void	spi_sdcard_disable_cs (const struct spi_sdcard *card)
static void	spi_sdcard_sendbyte (const struct spi_sdcard *card, uint8_t b)
static uint8_t	spi_sdcard_recvbyte (const struct spi_sdcard *card)
static uint8_t	spi_sdcard_calculate_command_crc (uint8_t cmd, uint32_t argument)
static int	lookup_cmd_response_type (uint8_t cmd)
static int	lookup_acmd_response_type (uint8_t cmd)
static int	lookup_response_length (int response_type)
static int	response_resolve (int response_type, uint8_t *response, uint32_t *out_register)
static int	spi_sdcard_do_command_help (const struct spi_sdcard *card, int is_acmd, uint8_t cmd, uint32_t argument, uint32_t *out_register)
static int	spi_sdcard_do_command (const struct spi_sdcard *card, uint8_t cmd, uint32_t argument, uint32_t *out_register)
static int	spi_sdcard_do_app_command (const struct spi_sdcard *card, uint8_t cmd, uint32_t argument, uint32_t *out_register)
size_t	spi_sdcard_size (const struct spi_sdcard *card)
int	spi_sdcard_init (struct spi_sdcard *card, const unsigned int bus, const unsigned int cs)
int	spi_sdcard_single_read (const struct spi_sdcard *card, size_t block_address, void *buff)
int	spi_sdcard_multiple_read (const struct spi_sdcard *card, size_t start_block_address, size_t end_block_address, void *buff)
int	spi_sdcard_read (const struct spi_sdcard *card, void *dest, size_t offset, size_t count)
int	spi_sdcard_single_write (const struct spi_sdcard *card, size_t block_address, void *buff)
int	spi_sdcard_multiple_write (const struct spi_sdcard *card, size_t start_block_address, size_t end_block_address, void *buff)
int	spi_sdcard_erase (const struct spi_sdcard *card, size_t start_block_address, size_t end_block_address)
int	spi_sdcard_erase_all (const struct spi_sdcard *card)

Macro Definition Documentation

APP_CMD

#define APP_CMD   55

Definition at line 46 of file spi_sdcard.c.

BLOCK_SIZE

#define BLOCK_SIZE   512

Definition at line 93 of file spi_sdcard.c.

CLR_WRITE_PROT

#define CLR_WRITE_PROT   29

Definition at line 40 of file spi_sdcard.c.

CRC_ON_OFF

#define CRC_ON_OFF   59

Definition at line 49 of file spi_sdcard.c.

CT_BLOCK_START

#define CT_BLOCK_START   0xfe

Definition at line 60 of file spi_sdcard.c.

CT_MULTIPLE_BLOCK_START

#define CT_MULTIPLE_BLOCK_START   0xfc

Definition at line 61 of file spi_sdcard.c.

CT_MULTIPLE_BLOCK_STOP

#define CT_MULTIPLE_BLOCK_STOP   0xfd

Definition at line 62 of file spi_sdcard.c.

CT_RESPONSE_ACCEPTED

#define CT_RESPONSE_ACCEPTED   0x05

Definition at line 64 of file spi_sdcard.c.

CT_RESPONSE_MASK

#define CT_RESPONSE_MASK   0x1f

Definition at line 63 of file spi_sdcard.c.

CT_RESPONSE_REJECTED_CRC

#define CT_RESPONSE_REJECTED_CRC   0x0b

Definition at line 65 of file spi_sdcard.c.

CT_RESPONSE_REJECTED_WRITE_ERR

#define CT_RESPONSE_REJECTED_WRITE_ERR   0x0d

Definition at line 66 of file spi_sdcard.c.

dprintk

#define dprintk	(		fmt,
			args...
	)		do {} while (0)

Definition at line 16 of file spi_sdcard.c.

ERASE

#define ERASE   38

Definition at line 44 of file spi_sdcard.c.

ERASE_WR_BLK_END_ADDR

#define ERASE_WR_BLK_END_ADDR   33

Definition at line 43 of file spi_sdcard.c.

ERASE_WR_BLK_START_ADDR

#define ERASE_WR_BLK_START_ADDR   32

Definition at line 42 of file spi_sdcard.c.

GEN_CMD

#define GEN_CMD   56

Definition at line 47 of file spi_sdcard.c.

GO_IDLE_STATE

#define GO_IDLE_STATE   0

Definition at line 25 of file spi_sdcard.c.

LOCK_UNLOCK

#define LOCK_UNLOCK   42

Definition at line 45 of file spi_sdcard.c.

PROGRAM_CSD

#define PROGRAM_CSD   27

Definition at line 38 of file spi_sdcard.c.

READ_MULTIPLEBLOCK

#define READ_MULTIPLEBLOCK   18

Definition at line 35 of file spi_sdcard.c.

READ_OCR

#define READ_OCR   58

Definition at line 48 of file spi_sdcard.c.

READ_SINGLE_BLOCK

#define READ_SINGLE_BLOCK   17

Definition at line 34 of file spi_sdcard.c.

RSP_ERR_ADDRESS

#define RSP_ERR_ADDRESS   (1 << 13)

Definition at line 90 of file spi_sdcard.c.

RSP_ERR_CARD_IS_LOCKED

#define RSP_ERR_CARD_IS_LOCKED   (1 << 0)

Definition at line 77 of file spi_sdcard.c.

RSP_ERR_CC

#define RSP_ERR_CC   (1 << 3)

Definition at line 80 of file spi_sdcard.c.

RSP_ERR_COM_CRC

#define RSP_ERR_COM_CRC   (1 << 11)

Definition at line 88 of file spi_sdcard.c.

RSP_ERR_ECC

#define RSP_ERR_ECC   (1 << 4)

Definition at line 81 of file spi_sdcard.c.

RSP_ERR_ERASE_PARAM

#define RSP_ERR_ERASE_PARAM   (1 << 6)

Definition at line 83 of file spi_sdcard.c.

RSP_ERR_ERASE_RESET

#define RSP_ERR_ERASE_RESET   (1 << 9)

Definition at line 86 of file spi_sdcard.c.

RSP_ERR_ERASE_SEQUENCE

#define RSP_ERR_ERASE_SEQUENCE   (1 << 12)

Definition at line 89 of file spi_sdcard.c.

RSP_ERR_GENERAL

#define RSP_ERR_GENERAL   (1 << 2)

Definition at line 79 of file spi_sdcard.c.

RSP_ERR_ILLEGAL_COMMAND

#define RSP_ERR_ILLEGAL_COMMAND   (1 << 10)

Definition at line 87 of file spi_sdcard.c.

RSP_ERR_IN_IDLE

#define RSP_ERR_IN_IDLE   (1 << 8)

Definition at line 85 of file spi_sdcard.c.

RSP_ERR_OUT_OF_RANGE

#define RSP_ERR_OUT_OF_RANGE   (1 << 7)

Definition at line 84 of file spi_sdcard.c.

RSP_ERR_PARAMETER

#define RSP_ERR_PARAMETER   (1 << 14)

Definition at line 91 of file spi_sdcard.c.

RSP_ERR_WP_ERASE_SKIP

#define RSP_ERR_WP_ERASE_SKIP   (1 << 1)

Definition at line 78 of file spi_sdcard.c.

RSP_ERR_WP_VIOLATION

#define RSP_ERR_WP_VIOLATION   (1 << 5)

Definition at line 82 of file spi_sdcard.c.

RSP_R1

#define RSP_R1   0

Definition at line 69 of file spi_sdcard.c.

RSP_R1b

#define RSP_R1b   1

Definition at line 70 of file spi_sdcard.c.

RSP_R2

#define RSP_R2   2

Definition at line 71 of file spi_sdcard.c.

RSP_R3

#define RSP_R3   3

Definition at line 72 of file spi_sdcard.c.

RSP_R4

#define RSP_R4   4

Definition at line 73 of file spi_sdcard.c.

RSP_R5

#define RSP_R5   5

Definition at line 74 of file spi_sdcard.c.

RSP_R7

#define RSP_R7   7

Definition at line 75 of file spi_sdcard.c.

SD_SEND_OP_COND

#define SD_SEND_OP_COND   41

Definition at line 55 of file spi_sdcard.c.

SD_STATUS

#define SD_STATUS   13

Definition at line 52 of file spi_sdcard.c.

SDCARD_TYPE_SDHC

#define SDCARD_TYPE_SDHC   2

Definition at line 21 of file spi_sdcard.c.

SDCARD_TYPE_SDSC

#define SDCARD_TYPE_SDSC   1

Definition at line 20 of file spi_sdcard.c.

SDCARD_TYPE_SDXC

#define SDCARD_TYPE_SDXC   3

Definition at line 22 of file spi_sdcard.c.

SEND_CID

#define SEND_CID   10

Definition at line 30 of file spi_sdcard.c.

SEND_CSD

#define SEND_CSD   9

Definition at line 29 of file spi_sdcard.c.

SEND_IF_COND

#define SEND_IF_COND   8

Definition at line 28 of file spi_sdcard.c.

SEND_NUM_WR_BLOCKS

#define SEND_NUM_WR_BLOCKS   22

Definition at line 53 of file spi_sdcard.c.

SEND_OP_COND

#define SEND_OP_COND   1

Definition at line 26 of file spi_sdcard.c.

SEND_SCR

#define SEND_SCR   51

Definition at line 57 of file spi_sdcard.c.

SEND_STATUS

#define SEND_STATUS   13

Definition at line 32 of file spi_sdcard.c.

SEND_WRITE_PROT

#define SEND_WRITE_PROT   30

Definition at line 41 of file spi_sdcard.c.

SET_BLOCKLEN

#define SET_BLOCKLEN   16

Definition at line 33 of file spi_sdcard.c.

SET_CLR_CARD_DETECT

#define SET_CLR_CARD_DETECT   42

Definition at line 56 of file spi_sdcard.c.

SET_WR_BLK_ERASE_COUNT

#define SET_WR_BLK_ERASE_COUNT   23

Definition at line 54 of file spi_sdcard.c.

SET_WRITE_PROT

#define SET_WRITE_PROT   28

Definition at line 39 of file spi_sdcard.c.

STOP_TRANSMISSION

#define STOP_TRANSMISSION   12

Definition at line 31 of file spi_sdcard.c.

SWITCH_FUNC

#define SWITCH_FUNC   6

Definition at line 27 of file spi_sdcard.c.

WRITE_BLOCK

#define WRITE_BLOCK   24

Definition at line 36 of file spi_sdcard.c.

WRITE_MULTIPLEBLOCK

#define WRITE_MULTIPLEBLOCK   25

Definition at line 37 of file spi_sdcard.c.

Function Documentation

extract_bits()

static unsigned long long extract_bits ( uint8_t *  buff, int  width, int  start, int  end  )

static

Definition at line 95 of file spi_sdcard.c.

References width.

Referenced by spi_sdcard_size().

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lookup_acmd_response_type()

static int lookup_acmd_response_type ( uint8_t  cmd )

static

Definition at line 180 of file spi_sdcard.c.

References RSP_R1, RSP_R2, SD_SEND_OP_COND, SD_STATUS, SEND_NUM_WR_BLOCKS, SEND_SCR, SET_CLR_CARD_DETECT, and SET_WR_BLK_ERASE_COUNT.

Referenced by spi_sdcard_do_command_help().

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lookup_cmd_response_type()

static int lookup_cmd_response_type ( uint8_t  cmd )

static

Definition at line 143 of file spi_sdcard.c.

References APP_CMD, CLR_WRITE_PROT, CRC_ON_OFF, ERASE, ERASE_WR_BLK_END_ADDR, ERASE_WR_BLK_START_ADDR, GEN_CMD, GO_IDLE_STATE, LOCK_UNLOCK, PROGRAM_CSD, READ_MULTIPLEBLOCK, READ_OCR, READ_SINGLE_BLOCK, RSP_R1, RSP_R1b, RSP_R2, RSP_R3, RSP_R7, SEND_CID, SEND_CSD, SEND_IF_COND, SEND_OP_COND, SEND_STATUS, SEND_WRITE_PROT, SET_BLOCKLEN, SET_WRITE_PROT, STOP_TRANSMISSION, SWITCH_FUNC, WRITE_BLOCK, and WRITE_MULTIPLEBLOCK.

Referenced by spi_sdcard_do_command_help().

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lookup_response_length()

static int lookup_response_length ( int  response_type )

static

Definition at line 195 of file spi_sdcard.c.

References RSP_R1, RSP_R1b, RSP_R2, RSP_R3, and RSP_R7.

Referenced by spi_sdcard_do_command_help().

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response_resolve()

static int response_resolve ( int  response_type, uint8_t *  response, uint32_t *  out_register  )

static

Definition at line 210 of file spi_sdcard.c.

References __unused, dprintk, NULL, RSP_R1, RSP_R1b, RSP_R2, RSP_R3, and RSP_R7.

Referenced by spi_sdcard_do_command_help().

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spi_sdcard_calculate_command_crc()

static uint8_t spi_sdcard_calculate_command_crc ( uint8_t  cmd, uint32_t  argument  )

static

Definition at line 132 of file spi_sdcard.c.

References crc7_byte().

Referenced by spi_sdcard_do_command_help().

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spi_sdcard_disable_cs()

static void spi_sdcard_disable_cs ( const struct spi_sdcard *  card )

static

Definition at line 113 of file spi_sdcard.c.

References card, spi_sdcard::slave, and spi_release_bus().

Referenced by spi_sdcard_do_command_help(), spi_sdcard_init(), spi_sdcard_multiple_read(), spi_sdcard_multiple_write(), spi_sdcard_single_read(), spi_sdcard_single_write(), and spi_sdcard_size().

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spi_sdcard_do_app_command()

static int spi_sdcard_do_app_command ( const struct spi_sdcard *  card, uint8_t  cmd, uint32_t  argument, uint32_t *  out_register  )

static

Definition at line 351 of file spi_sdcard.c.

References APP_CMD, card, NULL, spi_sdcard_do_command(), and spi_sdcard_do_command_help().

Referenced by spi_sdcard_init().

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spi_sdcard_do_command()

static int spi_sdcard_do_command ( const struct spi_sdcard *  card, uint8_t  cmd, uint32_t  argument, uint32_t *  out_register  )

static

Definition at line 343 of file spi_sdcard.c.

References card, and spi_sdcard_do_command_help().

Referenced by spi_sdcard_do_app_command(), spi_sdcard_erase(), spi_sdcard_init(), spi_sdcard_multiple_read(), spi_sdcard_multiple_write(), spi_sdcard_single_read(), spi_sdcard_single_write(), and spi_sdcard_size().

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spi_sdcard_do_command_help()

static int spi_sdcard_do_command_help ( const struct spi_sdcard *  card, int  is_acmd, uint8_t  cmd, uint32_t  argument, uint32_t *  out_register  )

static

Definition at line 266 of file spi_sdcard.c.

References c, card, dprintk, length, lookup_acmd_response_type(), lookup_cmd_response_type(), lookup_response_length(), response_resolve(), RSP_R1b, spi_sdcard_calculate_command_crc(), spi_sdcard_disable_cs(), spi_sdcard_enable_cs(), spi_sdcard_recvbyte(), spi_sdcard_sendbyte(), type, and wait().

Referenced by spi_sdcard_do_app_command(), and spi_sdcard_do_command().

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spi_sdcard_enable_cs()

static void spi_sdcard_enable_cs ( const struct spi_sdcard *  card )

static

Definition at line 108 of file spi_sdcard.c.

References card, spi_sdcard::slave, and spi_claim_bus().

Referenced by spi_sdcard_do_command_help(), spi_sdcard_multiple_read(), spi_sdcard_multiple_write(), spi_sdcard_single_read(), spi_sdcard_single_write(), and spi_sdcard_size().

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spi_sdcard_erase()

int spi_sdcard_erase	(	const struct spi_sdcard *	card,
		size_t	start_block_address,
		size_t	end_block_address
	)

Definition at line 772 of file spi_sdcard.c.

References card, ERASE, ERASE_WR_BLK_END_ADDR, ERASE_WR_BLK_START_ADDR, NULL, SDCARD_TYPE_SDSC, spi_sdcard_do_command(), and spi_sdcard::type.

Referenced by spi_sdcard_erase_all().

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spi_sdcard_erase_all()

int spi_sdcard_erase_all

(

const struct spi_sdcard *

card

)

Definition at line 798 of file spi_sdcard.c.

References BLOCK_SIZE, card, spi_sdcard_erase(), and spi_sdcard_size().

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spi_sdcard_init()

int spi_sdcard_init	(	struct spi_sdcard *	card,
		const unsigned int	bus,
		const unsigned int	cs
	)

Definition at line 421 of file spi_sdcard.c.

References card, GO_IDLE_STATE, NULL, READ_OCR, RSP_ERR_ILLEGAL_COMMAND, RSP_ERR_IN_IDLE, SD_SEND_OP_COND, SDCARD_TYPE_SDHC, SDCARD_TYPE_SDSC, SDCARD_TYPE_SDXC, SEND_IF_COND, SEND_OP_COND, SET_BLOCKLEN, spi_sdcard::slave, spi_sdcard_disable_cs(), spi_sdcard_do_app_command(), spi_sdcard_do_command(), spi_sdcard_sendbyte(), spi_sdcard_size(), spi_setup_slave(), spi_sdcard::type, and wait().

Referenced by boot_device_init().

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spi_sdcard_multiple_read()

int spi_sdcard_multiple_read	(	const struct spi_sdcard *	card,
		size_t	start_block_address,
		size_t	end_block_address,
		void *	buff
	)

Definition at line 544 of file spi_sdcard.c.

References c, card, crc16_byte(), CT_BLOCK_START, NULL, READ_MULTIPLEBLOCK, SDCARD_TYPE_SDSC, SEND_STATUS, spi_sdcard_disable_cs(), spi_sdcard_do_command(), spi_sdcard_enable_cs(), spi_sdcard_recvbyte(), STOP_TRANSMISSION, spi_sdcard::type, and wait().

Referenced by spi_sdcard_read().

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spi_sdcard_multiple_write()

int spi_sdcard_multiple_write	(	const struct spi_sdcard *	card,
		size_t	start_block_address,
		size_t	end_block_address,
		void *	buff
	)

Definition at line 707 of file spi_sdcard.c.

References c, card, crc16_byte(), CT_MULTIPLE_BLOCK_START, CT_MULTIPLE_BLOCK_STOP, CT_RESPONSE_ACCEPTED, CT_RESPONSE_MASK, NULL, SDCARD_TYPE_SDSC, SEND_STATUS, spi_sdcard_disable_cs(), spi_sdcard_do_command(), spi_sdcard_enable_cs(), spi_sdcard_recvbyte(), spi_sdcard_sendbyte(), STOP_TRANSMISSION, spi_sdcard::type, wait(), and WRITE_MULTIPLEBLOCK.

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spi_sdcard_read()

int spi_sdcard_read	(	const struct spi_sdcard *	card,
		void *	dest,
		size_t	offset,
		size_t	count
	)

Definition at line 603 of file spi_sdcard.c.

References BLOCK_SIZE, card, count, memcpy(), offset, spi_sdcard_multiple_read(), and spi_sdcard_single_read().

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spi_sdcard_recvbyte()

static uint8_t spi_sdcard_recvbyte ( const struct spi_sdcard *  card )

static

Definition at line 124 of file spi_sdcard.c.

References card, dprintk, spi_sdcard::slave, and spi_xfer().

Referenced by spi_sdcard_do_command_help(), spi_sdcard_multiple_read(), spi_sdcard_multiple_write(), spi_sdcard_single_read(), spi_sdcard_single_write(), and spi_sdcard_size().

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spi_sdcard_sendbyte()

static void spi_sdcard_sendbyte ( const struct spi_sdcard *  card, uint8_t  b  )

static

Definition at line 118 of file spi_sdcard.c.

References card, dprintk, NULL, spi_sdcard::slave, and spi_xfer().

Referenced by spi_sdcard_do_command_help(), spi_sdcard_init(), spi_sdcard_multiple_write(), and spi_sdcard_single_write().

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spi_sdcard_single_read()

int spi_sdcard_single_read	(	const struct spi_sdcard *	card,
		size_t	block_address,
		void *	buff
	)

Definition at line 496 of file spi_sdcard.c.

References c, card, crc16_byte(), CT_BLOCK_START, NULL, READ_SINGLE_BLOCK, SDCARD_TYPE_SDSC, spi_sdcard_disable_cs(), spi_sdcard_do_command(), spi_sdcard_enable_cs(), spi_sdcard_recvbyte(), spi_sdcard::type, and wait().

Referenced by spi_sdcard_read().

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spi_sdcard_single_write()

int spi_sdcard_single_write	(	const struct spi_sdcard *	card,
		size_t	block_address,
		void *	buff
	)

Definition at line 658 of file spi_sdcard.c.

References c, card, crc16_byte(), CT_BLOCK_START, CT_RESPONSE_ACCEPTED, CT_RESPONSE_MASK, NULL, SDCARD_TYPE_SDSC, spi_sdcard_disable_cs(), spi_sdcard_do_command(), spi_sdcard_enable_cs(), spi_sdcard_recvbyte(), spi_sdcard_sendbyte(), spi_sdcard::type, wait(), and WRITE_BLOCK.

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spi_sdcard_size()

size_t spi_sdcard_size

(

const struct spi_sdcard *

card

)

Definition at line 363 of file spi_sdcard.c.

References c, card, crc16_byte(), CT_BLOCK_START, extract_bits(), NULL, SEND_CSD, spi_sdcard_disable_cs(), spi_sdcard_do_command(), spi_sdcard_enable_cs(), spi_sdcard_recvbyte(), and wait().

Referenced by spi_sdcard_erase_all(), and spi_sdcard_init().

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