/* $NetBSD: uscsilib.h,v 1.1 2008/05/14 16:49:48 reinoud Exp $  */

/*-
* Copyright (c) 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
* NASA Ames Research Center.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* Small changes made by Reinoud Zandijk <[email protected]>
*
*/

#ifndef _SCSILIB_H_
#define _SCSILIB_H_


#define SCSI_CMD_LEN  12
typedef unsigned char scsicmd[SCSI_CMD_LEN];

#include "defs.h"
#include "uscsilib_machdep.h"
extern  int uscsilib_verbose;


/*
* Unified structure copied and modified from NetBSD's <sys/scsiio.h> for ease
*/

struct  uscsi_addr {
       int type;       /* bus type */
#define USCSI_TYPE_SCSI  0
#define USCSI_TYPE_ATAPI 1
       union {
               struct {
                       int scbus;  /* -1 if wildcard */
                       int target; /* -1 if wildcard */
                       int lun;    /* -1 if wildcard */
               } scsi;
               struct {
                       int atbus;  /* -1 if wildcard */
                       int drive;  /* -1 if wildcard */
               } atapi;
       } addr;
};


struct uscsi_sense {
       int asc;                /* Additional sense code */
       int ascq;               /* Additional sense code quality */
       int skey_valid;         /* sense key valid */
       int sense_key;          /* sense key; interpret on (asc, ascq) pair */
};


struct uscsi_dev {
       char    *dev_name;
       int      fhandle;
       void    *devhandle;     /* for if a fhandle is not enough */
};


/* uscsi_sense.c */
extern char *uscsi_decode_sense(void *sinfo, int flag);
extern void  uscsi_print_sense(const char *name, u_char *req_cmd,
       int req_cmdlen, u_char *req_sense, int req_senselen_used,
       int verbosity);


/* scsi_subr.c */
extern int  uscsi_open(struct uscsi_dev *);
extern int  uscsi_close(struct uscsi_dev *);
extern int  uscsi_command(int flags, struct uscsi_dev *disc,
       void *cmd, size_t cmdlen, void *data, size_t datalen,
       uint32_t timeout, struct uscsi_sense *uscsi_sense);
extern int  uscsi_check_for_scsi(struct uscsi_dev *);
extern int  uscsi_identify(struct uscsi_dev *, struct uscsi_addr *saddr);

extern int  uscsi_mode_sense(struct uscsi_dev *, u_int8_t, u_int8_t,
       void *, size_t);
extern int  uscsi_mode_select(struct uscsi_dev *, u_int8_t, void *, size_t);
extern int  uscsi_request_sense(struct uscsi_dev *, void *, size_t);


#endif  /* _SCSILIB_H_ */