SD Card LibI2C driver. More...

#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <inttypes.h>
#include <rtems.h>
#include <rtems/libi2c.h>
#include <rtems/libio.h>
#include <rtems/blkdev.h>
#include <libchip/spi-sd-card.h>
#include <rtems/status-checks.h>

Macros
#define	SD_CARD_BUSY_TOKEN 0

#define	SD_CARD_BLOCK_SIZE_DEFAULT 512

#define	SD_CARD_COMMAND_RESPONSE_START 7

#define	SD_CARD_INVALIDATE_RESPONSE_INDEX(e) e->response_index = SD_CARD_COMMAND_SIZE

Commands
#define	SD_CARD_CMD_GO_IDLE_STATE 0

#define	SD_CARD_CMD_SEND_OP_COND 1

#define	SD_CARD_CMD_SEND_IF_COND 8

#define	SD_CARD_CMD_SEND_CSD 9

#define	SD_CARD_CMD_SEND_CID 10

#define	SD_CARD_CMD_STOP_TRANSMISSION 12

#define	SD_CARD_CMD_SEND_STATUS 13

#define	SD_CARD_CMD_SET_BLOCKLEN 16

#define	SD_CARD_CMD_READ_SINGLE_BLOCK 17

#define	SD_CARD_CMD_READ_MULTIPLE_BLOCK 18

#define	SD_CARD_CMD_SET_BLOCK_COUNT 23

#define	SD_CARD_CMD_WRITE_BLOCK 24

#define	SD_CARD_CMD_WRITE_MULTIPLE_BLOCK 25

#define	SD_CARD_CMD_PROGRAM_CSD 27

#define	SD_CARD_CMD_SET_WRITE_PROT 28

#define	SD_CARD_CMD_CLR_WRITE_PROT 29

#define	SD_CARD_CMD_SEND_WRITE_PROT 30

#define	SD_CARD_CMD_TAG_SECTOR_START 32

#define	SD_CARD_CMD_TAG_SECTOR_END 33

#define	SD_CARD_CMD_UNTAG_SECTOR 34

#define	SD_CARD_CMD_TAG_ERASE_GROUP_START 35

#define	SD_CARD_CMD_TAG_ERASE_GROUP_END 36

#define	SD_CARD_CMD_UNTAG_ERASE_GROUP 37

#define	SD_CARD_CMD_ERASE 38

#define	SD_CARD_CMD_LOCK_UNLOCK 42

#define	SD_CARD_CMD_APP_CMD 55

#define	SD_CARD_CMD_GEN_CND 56

#define	SD_CARD_CMD_READ_OCR 58

#define	SD_CARD_CMD_CRC_ON_OFF 59

Application Commands
#define	SD_CARD_ACMD_SD_SEND_OP_COND 41

Command Flags
#define	SD_CARD_FLAG_HCS 0x40000000U

#define	SD_CARD_FLAG_VHS_2_7_TO_3_3 0x00000100U

#define	SD_CARD_FLAG_CHECK_PATTERN 0x000000aaU

Command Fields
#define	SD_CARD_COMMAND_SET_COMMAND(c, cmd) (c) [1] = (uint8_t) (0x40 + ((cmd) & 0x3f))

#define	SD_CARD_COMMAND_SET_ARGUMENT(c, arg) sd_card_put_uint32( (arg), &((c) [2]))

#define	SD_CARD_COMMAND_SET_CRC7(c, crc7) ((c) [6] = ((crc7) << 1) \| 1U)

#define	SD_CARD_COMMAND_GET_CRC7(c) ((c) [6] >> 1)

Response Fields
#define	SD_CARD_IS_RESPONSE(r) (((r) & 0x80) == 0)

#define	SD_CARD_IS_ERRORLESS_RESPONSE(r) (((r) & 0x7e) == 0)

#define	SD_CARD_IS_NOT_IDLE_RESPONSE(r) (((r) & 0x81) == 0)

#define	SD_CARD_IS_DATA_ERROR(r) (((r) & 0xe0) == 0)

#define	SD_CARD_IS_DATA_REJECTED(r) (((r) & 0x1f) != 0x05)

Card Identification
#define	SD_CARD_CID_SIZE 16

#define	SD_CARD_CID_GET_MID(cid) ((cid) [0])

#define	SD_CARD_CID_GET_OID(cid) sd_card_get_uint16( cid + 1)

#define	SD_CARD_CID_GET_PNM(cid, i) ((char) (cid) [3 + (i)])

#define	SD_CARD_CID_GET_PRV(cid) ((cid) [9])

#define	SD_CARD_CID_GET_PSN(cid) sd_card_get_uint32( cid + 10)

#define	SD_CARD_CID_GET_MDT(cid) ((cid) [14])

#define	SD_CARD_CID_GET_CRC7(cid) ((cid) [15] >> 1)

Card Specific Data
#define	SD_CARD_CSD_SIZE 16

#define	SD_CARD_CSD_GET_CSD_STRUCTURE(csd) ((csd) [0] >> 6)

#define	SD_CARD_CSD_GET_SPEC_VERS(csd) (((csd) [0] >> 2) & 0xf)

#define	SD_CARD_CSD_GET_TAAC(csd) ((csd) [1])

#define	SD_CARD_CSD_GET_NSAC(csd) ((uint32_t) (csd) [2])

#define	SD_CARD_CSD_GET_TRAN_SPEED(csd) ((csd) [3])

#define	SD_CARD_CSD_GET_C_SIZE(csd) ((((uint32_t) (csd) [6] & 0x3) << 10) + (((uint32_t) (csd) [7]) << 2) + ((((uint32_t) (csd) [8]) >> 6) & 0x3))

#define	SD_CARD_CSD_GET_C_SIZE_MULT(csd) ((((csd) [9] & 0x3) << 1) + (((csd) [10] >> 7) & 0x1))

#define	SD_CARD_CSD_GET_READ_BLK_LEN(csd) ((uint32_t) (csd) [5] & 0xf)

#define	SD_CARD_CSD_GET_WRITE_BLK_LEN(csd) ((((uint32_t) (csd) [12] & 0x3) << 2) + ((((uint32_t) (csd) [13]) >> 6) & 0x3))

#define	SD_CARD_CSD_1_GET_C_SIZE(csd) ((((uint32_t) (csd) [7] & 0x3f) << 16) + (((uint32_t) (csd) [8]) << 8) + (uint32_t) (csd) [9])

Data Start and Stop Tokens
#define	SD_CARD_START_BLOCK_SINGLE_BLOCK_READ 0xfe

#define	SD_CARD_START_BLOCK_MULTIPLE_BLOCK_READ 0xfe

#define	SD_CARD_START_BLOCK_SINGLE_BLOCK_WRITE 0xfe

#define	SD_CARD_START_BLOCK_MULTIPLE_BLOCK_WRITE 0xfc

#define	SD_CARD_STOP_TRANSFER_MULTIPLE_BLOCK_WRITE 0xfd

Functions
Integer to and from Byte-Stream Converter
Card Specific Data Functions
CRC functions
Based on http://en.wikipedia.org/wiki/Computation_of_CRC
Communication Functions
Disk Driver Functions
rtems_status_code	sd_card_register (void)

Detailed Description

SD Card LibI2C driver.

Macros

Functions

Detailed Description