sgio.c File Reference

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <linux/fs.h>
#include <scsi/scsi.h>
#include <scsi/sg.h>
#include <hdparm.h>

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Macros
#define	SG_READ   0
#define	SG_WRITE   1
#define	SG_CHECK_CONDITION   0x02
#define	SG_DRIVER_SENSE   0x08
#define	SG_ATA_16   0x85
#define	SG_ATA_16_LEN   16
#define	SG_ATA_LBA48   1
#define	SG_ATA_PROTO_NON_DATA   (3 << 1)
#define	SG_ATA_PROTO_PIO_IN   (4 << 1)
#define	SG_ATA_PROTO_PIO_OUT   (5 << 1)
#define	SG_ATA_PROTO_DMA   (6 << 1)
#define	SG_ATA_PROTO_UDMA_IN   (11 << 1) /* not yet supported in libata */
#define	SG_ATA_PROTO_UDMA_OUT   (12 << 1) /* not yet supported in libata */
#define	ATA_USING_LBA   (1 << 6)

Enumerations
enum	{   SG_CDB2_TLEN_NODATA = 0 << 0, SG_CDB2_TLEN_FEAT = 1 << 0, SG_CDB2_TLEN_NSECT = 2 << 0, SG_CDB2_TLEN_BYTES = 0 << 2,   SG_CDB2_TLEN_SECTORS = 1 << 2, SG_CDB2_TDIR_TO_DEV = 0 << 3, SG_CDB2_TDIR_FROM_DEV = 1 << 3, SG_CDB2_CHECK_COND = 1 << 5 }

Functions
void	tf_init (struct ata_tf *tf, __u8 ata_op, __u64 lba, unsigned int nsect)
__u64	tf_to_lba (struct ata_tf *tf)
static void	dump_bytes (const char *prefix, unsigned char *p, int len)
static int	bad_sense (unsigned char *sb, int len)
int	sg16 (int fd, int rw, struct ata_tf *tf, void *data, unsigned int data_bytes, unsigned int timeout_secs)
int	do_drive_cmd (int fd, unsigned char *args)

Variables
int	verbose

Macro Definition Documentation

ATA_USING_LBA

#define ATA_USING_LBA   (1 << 6)

SG_ATA_16

#define SG_ATA_16   0x85

SG_ATA_16_LEN

#define SG_ATA_16_LEN   16

SG_ATA_LBA48

#define SG_ATA_LBA48   1

SG_ATA_PROTO_DMA

#define SG_ATA_PROTO_DMA   (6 << 1)

SG_ATA_PROTO_NON_DATA

#define SG_ATA_PROTO_NON_DATA   (3 << 1)

SG_ATA_PROTO_PIO_IN

#define SG_ATA_PROTO_PIO_IN   (4 << 1)

SG_ATA_PROTO_PIO_OUT

#define SG_ATA_PROTO_PIO_OUT   (5 << 1)

SG_ATA_PROTO_UDMA_IN

#define SG_ATA_PROTO_UDMA_IN   (11 << 1) /* not yet supported in libata */

SG_ATA_PROTO_UDMA_OUT

#define SG_ATA_PROTO_UDMA_OUT   (12 << 1) /* not yet supported in libata */

SG_CHECK_CONDITION

#define SG_CHECK_CONDITION   0x02

SG_DRIVER_SENSE

#define SG_DRIVER_SENSE   0x08

SG_READ

#define SG_READ   0

SG_WRITE

#define SG_WRITE   1

Enumeration Type Documentation

anonymous enum

anonymous enum

Enumerator
SG_CDB2_TLEN_NODATA
SG_CDB2_TLEN_FEAT
SG_CDB2_TLEN_NSECT
SG_CDB2_TLEN_BYTES
SG_CDB2_TLEN_SECTORS
SG_CDB2_TDIR_TO_DEV
SG_CDB2_TDIR_FROM_DEV
SG_CDB2_CHECK_COND

Function Documentation

bad_sense()

static int bad_sense ( unsigned char *  sb, int  len  )

static

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do_drive_cmd()

int do_drive_cmd	(	int	fd,
		unsigned char *	args
	)

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dump_bytes()

static void dump_bytes ( const char *  prefix, unsigned char *  p, int  len  )

static

sg16()

int sg16	(	int	fd,
		int	rw,
		struct ata_tf *	tf,
		void *	data,
		unsigned int	data_bytes,
		unsigned int	timeout_secs
	)

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tf_init()

void tf_init	(	struct ata_tf *	tf,
		__u8	ata_op,
		__u64	lba,
		unsigned int	nsect
	)

tf_to_lba()

__u64 tf_to_lba

(

struct ata_tf *

tf

)

Variable Documentation

verbose

int verbose