/*      $OpenBSD: ataio.h,v 1.5 2003/09/26 21:43:32 miod Exp $  */
/*      $NetBSD: ataio.h,v 1.2 1998/11/23 22:58:23 kenh Exp $   */

#ifndef _SYS_ATAIO_H_
#define _SYS_ATAIO_H_

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

typedef struct  atareq {
        u_long  flags;          /* info about the request status and type */
        u_char  command;        /* command code */
        u_char  features;       /* feature modifier bits for command */
        u_char  sec_count;      /* sector count */
        u_char  sec_num;        /* sector number */
        u_char  head;           /* head number */
        u_short cylinder;       /* cylinder/lba address */

        caddr_t databuf;        /* pointer to I/O data buffer */
        u_long  datalen;        /* length of data buffer */
        int     timeout;        /* command timeout */
        u_char  retsts;         /* return status for the command */
        u_char  error;          /* error bits */
} atareq_t;

/* bit definitions for flags */
#define ATACMD_READ             0x00000001
#define ATACMD_WRITE            0x00000002
#define ATACMD_READREG          0x00000004

/* definitions for the return status (retsts) */
#define ATACMD_OK       0x00
#define ATACMD_TIMEOUT  0x01
#define ATACMD_ERROR    0x02
#define ATACMD_DF       0x03

#define ATAIOCCOMMAND   _IOWR('Q', 8, atareq_t)

typedef struct atagettrace {
        unsigned int    buf_size;       /* length of data buffer */
        void            *buf;           /* pointer to data buffer */
        unsigned int    bytes_copied;   /* number of bytes copied to buffer */
        unsigned int    bytes_left;     /* number of bytes left */
} atagettrace_t;

#define ATAIOGETTRACE   _IOWR('Q', 27, struct atagettrace)

#endif /* _SYS_ATAIO_H_ */