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/*
* Copyright (c) 1997, 1998 Kenneth D. Merry.
* All rights reserved.
*
* 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. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
*
* $FreeBSD: release/9.1.0/lib/libcam/camlib.h 95331 2002-04-23 23:58:20Z obrien $
*/
/*
* Buffer encoding/decoding routines taken from the original FreeBSD SCSI
* library and slightly modified. The original header file had the following
* copyright:
*/
/* Copyright (c) 1994 HD Associates (hd@world.std.com)
* All rights reserved.
*
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by HD Associates
* 4. Neither the name of the HD Associaates nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY HD ASSOCIATES``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 HD ASSOCIATES 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.
*/
#ifndef _CAMLIB_H
#define _CAMLIB_H
#include <sys/cdefs.h>
#include <sys/param.h>
#include <cam/cam.h>
#include <cam/cam_ccb.h>
#define CAM_ERRBUF_SIZE 2048 /* sizeof the CAM libarary error string */
/*
* Right now we hard code the transport layer device, but this will change
* if we ever get more than one transport layer.
*/
#define XPT_DEVICE "/dev/xpt0"
extern char cam_errbuf[];
struct cam_device {
char device_path[MAXPATHLEN];/*
* Pathname of the device
* given by the user. This
* may be null if the
* user states the device
* name and unit number
* separately.
*/
char given_dev_name[DEV_IDLEN+1];/*
* Device name given by
* the user.
*/
u_int32_t given_unit_number; /*
* Unit number given by
* the user.
*/
char device_name[DEV_IDLEN+1];/*
* Name of the device,
* e.g. 'pass'
*/
u_int32_t dev_unit_num; /* Unit number of the passthrough
* device associated with this
* particular device.
*/
char sim_name[SIM_IDLEN+1]; /* Controller name, e.g. 'ahc' */
u_int32_t sim_unit_number; /* Controller unit number */
u_int32_t bus_id; /* Controller bus number */
lun_id_t target_lun; /* Logical Unit Number */
target_id_t target_id; /* Target ID */
path_id_t path_id; /* System SCSI bus number */
u_int16_t pd_type; /* type of peripheral device */
struct scsi_inquiry_data inq_data; /* SCSI Inquiry data */
u_int8_t serial_num[252]; /* device serial number */
u_int8_t serial_num_len; /* length of the serial number */
u_int8_t sync_period; /* Negotiated sync period */
u_int8_t sync_offset; /* Negotiated sync offset */
u_int8_t bus_width; /* Negotiated bus width */
int fd; /* file descriptor for device */
};
__BEGIN_DECLS
/* Basic utility commands */
struct cam_device * cam_open_device(const char *path, int flags);
void cam_close_device(struct cam_device *dev);
void cam_close_spec_device(struct cam_device *dev);
struct cam_device * cam_open_spec_device(const char *dev_name,
int unit, int flags,
struct cam_device *device);
struct cam_device * cam_open_btl(path_id_t path_id, target_id_t target_id,
lun_id_t target_lun, int flags,
struct cam_device *device);
struct cam_device * cam_open_pass(const char *path, int flags,
struct cam_device *device);
union ccb * cam_getccb(struct cam_device *dev);
void cam_freeccb(union ccb *ccb);
int cam_send_ccb(struct cam_device *device, union ccb *ccb);
char * cam_path_string(struct cam_device *dev, char *str,
int len);
struct cam_device * cam_device_dup(struct cam_device *device);
void cam_device_copy(struct cam_device *src,
struct cam_device *dst);
int cam_get_device(const char *path, char *dev_name,
int devnamelen, int *unit);
/*
* Buffer encoding/decoding routines, from the old SCSI library.
*/
int csio_decode(struct ccb_scsiio *csio, const char *fmt, ...)
__printflike(2, 3);
int csio_decode_visit(struct ccb_scsiio *csio, const char *fmt,
void (*arg_put)(void *, int, void *, int, char *),
void *puthook);
int buff_decode(u_int8_t *buff, size_t len, const char *fmt, ...)
__printflike(3, 4);
int buff_decode_visit(u_int8_t *buff, size_t len, const char *fmt,
void (*arg_put)(void *, int, void *, int, char *),
void *puthook);
int csio_build(struct ccb_scsiio *csio, u_int8_t *data_ptr,
u_int32_t dxfer_len, u_int32_t flags, int retry_count,
int timeout, const char *cmd_spec, ...);
int csio_build_visit(struct ccb_scsiio *csio, u_int8_t *data_ptr,
u_int32_t dxfer_len, u_int32_t flags, int retry_count,
int timeout, const char *cmd_spec,
int (*arg_get)(void *hook, char *field_name),
void *gethook);
int csio_encode(struct ccb_scsiio *csio, const char *fmt, ...)
__printflike(2, 3);
int buff_encode_visit(u_int8_t *buff, size_t len, const char *fmt,
int (*arg_get)(void *hook, char *field_name),
void *gethook);
int csio_encode_visit(struct ccb_scsiio *csio, const char *fmt,
int (*arg_get)(void *hook, char *field_name),
void *gethook);
__END_DECLS
#endif /* _CAMLIB_H */