/*      $OpenBSD: scsiio.h,v 1.10 2012/09/05 17:17:47 deraadt Exp $     */
/*      $NetBSD: scsiio.h,v 1.3 1994/06/29 06:45:09 cgd Exp $   */

#ifndef _SYS_SCSIIO_H_
#define _SYS_SCSIIO_H_


#include <sys/types.h>
#include <sys/ioctl.h>

#define SENSEBUFLEN 48
#define CMDBUFLEN   16

typedef struct  scsireq {
        u_long  flags;          /* info about the request status and type */
        u_long  timeout;
        u_char  cmd[CMDBUFLEN];
        u_char  cmdlen;
        caddr_t databuf;        /* address in user space of buffer */
        u_long  datalen;        /* size of user buffer (request) */
        u_long  datalen_used;   /* size of user buffer (used)*/
        u_char  sense[SENSEBUFLEN]; /* returned sense will be in here */
        u_char  senselen;       /* sensedata request size (MAX of SENSEBUFLEN)*/
        u_char  senselen_used;  /* return value only */
        u_char  status;         /* what the scsi status was from the adapter */
        u_char  retsts;         /* the return status for the command */
        int     error;          /* error bits */
} scsireq_t;

/* bit definitions for flags */
#define SCCMD_READ              0x00000001
#define SCCMD_WRITE             0x00000002
#define SCCMD_IOV               0x00000004
#define SCCMD_ESCAPE            0x00000010
#define SCCMD_TARGET            0x00000020


/* definitions for the return status (retsts) */
#define SCCMD_OK        0x00
#define SCCMD_TIMEOUT   0x01
#define SCCMD_BUSY      0x02
#define SCCMD_SENSE     0x03
#define SCCMD_UNKNOWN   0x04

#define SCIOCCOMMAND    _IOWR('Q', 1, scsireq_t)

#define SC_DB_CMDS      0x00000001      /* show all scsi cmds and errors */
#define SC_DB_FLOW      0x00000002      /* show routines entered        */
#define SC_DB_FLOW2     0x00000004      /* show path INSIDE routines    */
#define SC_DB_DMA       0x00000008      /* show DMA segments etc        */
#define SCIOCDEBUG      _IOW('Q', 2, int)       /* from 0 to 15 */

struct scsi_addr {
        int     type;
#define TYPE_SCSI       0
#define TYPE_ATAPI      1
        int     scbus;          /* -1 if wildcard */
        int     target;         /* -1 if wildcard */
        int     lun;            /* -1 if wildcard */
};

#define SCIOCRESET      _IO('Q', 7)     /* reset the device */
#define SCIOCIDENTIFY   _IOR('Q', 9, struct scsi_addr) 

struct sbioc_device {
        void            *sd_cookie;
        int             sd_target;
        int             sd_lun;
};

#define SBIOCPROBE      _IOWR('Q', 127, struct sbioc_device)
#define SBIOCDETACH     _IOWR('Q', 128, struct sbioc_device)

#endif /* _SYS_SCSIIO_H_ */