LCOM1920-T02G10

/*        $NetBSD: ataio.h,v 1.9 2012/01/24 20:04:07 jakllsch 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 */

        void *        databuf;        /* Pointer to I/O data buffer */

        u_long        datalen;        /* length of data buffer */

        int        timeout;        /* Command timeout */

        u_char        retsts;                /* the 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

#define ATACMD_LBA                0x00000008

/* 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)

/*

 * ATA bus IOCTL

 */

/* Scan bus for new devices. */

struct atabusioscan_args {

        int        at_dev;                /* device to scan, -1 for wildcard */

};

#define ATABUSIOSCAN        _IOW('A', 50, struct atabusioscan_args)

#define ATABUSIORESET        _IO('A', 51) /* reset ATA bus */

struct atabusiodetach_args {

        int        at_dev;                /* device to detach; -1 for wildcard */

};

#define ATABUSIODETACH        _IOW('A', 52, struct atabusiodetach_args)

#endif /* _SYS_ATAIO_H_ */