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182 lines
7.3 KiB
C
182 lines
7.3 KiB
C
/*
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* Copyright (c) 1997, 1998 Kenneth D. Merry.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/*
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* Buffer encoding/decoding routines taken from the original FreeBSD SCSI
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* library and slightly modified. The original header file had the following
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* copyright:
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*/
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/* Copyright (c) 1994 HD Associates (hd@world.std.com)
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by HD Associates
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* 4. Neither the name of the HD Associaates nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY HD ASSOCIATES``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL HD ASSOCIATES OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef _CAMLIB_H
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#define _CAMLIB_H
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#include <sys/cdefs.h>
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#include <sys/param.h>
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#include <cam/cam.h>
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#include <cam/cam_ccb.h>
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#define CAM_ERRBUF_SIZE 2048 /* sizeof the CAM libarary error string */
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/*
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* Right now we hard code the transport layer device, but this will change
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* if we ever get more than one transport layer.
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*/
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#define XPT_DEVICE "/dev/xpt0"
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extern char cam_errbuf[];
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struct cam_device {
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char device_path[MAXPATHLEN];/*
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* Pathname of the device
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* given by the user. This
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* may be null if the
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* user states the device
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* name and unit number
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* separately.
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*/
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char given_dev_name[DEV_IDLEN+1];/*
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* Device name given by
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* the user.
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*/
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u_int32_t given_unit_number; /*
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* Unit number given by
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* the user.
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*/
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char device_name[DEV_IDLEN+1];/*
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* Name of the device,
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* e.g. 'pass'
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*/
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u_int32_t dev_unit_num; /* Unit number of the passthrough
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* device associated with this
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* particular device.
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*/
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char sim_name[SIM_IDLEN+1]; /* Controller name, e.g. 'ahc' */
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u_int32_t sim_unit_number; /* Controller unit number */
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u_int32_t bus_id; /* Controller bus number */
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lun_id_t target_lun; /* Logical Unit Number */
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target_id_t target_id; /* Target ID */
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path_id_t path_id; /* System SCSI bus number */
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u_int16_t pd_type; /* type of peripheral device */
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struct scsi_inquiry_data inq_data; /* SCSI Inquiry data */
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u_int8_t serial_num[252]; /* device serial number */
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u_int8_t serial_num_len; /* length of the serial number */
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u_int8_t sync_period; /* Negotiated sync period */
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u_int8_t sync_offset; /* Negotiated sync offset */
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u_int8_t bus_width; /* Negotiated bus width */
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int fd; /* file descriptor for device */
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};
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__BEGIN_DECLS
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/* Basic utility commands */
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struct cam_device * cam_open_device(const char *path, int flags);
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void cam_close_device(struct cam_device *dev);
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void cam_close_spec_device(struct cam_device *dev);
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struct cam_device * cam_open_spec_device(const char *dev_name,
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int unit, int flags,
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struct cam_device *device);
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struct cam_device * cam_open_btl(path_id_t path_id, target_id_t target_id,
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lun_id_t target_lun, int flags,
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struct cam_device *device);
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struct cam_device * cam_open_pass(const char *path, int flags,
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struct cam_device *device);
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union ccb * cam_getccb(struct cam_device *dev);
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void cam_freeccb(union ccb *ccb);
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int cam_send_ccb(struct cam_device *device, union ccb *ccb);
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char * cam_path_string(struct cam_device *dev, char *str,
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int len);
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struct cam_device * cam_device_dup(struct cam_device *device);
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void cam_device_copy(struct cam_device *src,
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struct cam_device *dst);
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int cam_get_device(const char *path, char *dev_name,
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int devnamelen, int *unit);
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/*
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* Buffer encoding/decoding routines, from the old SCSI library.
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*/
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int csio_decode(struct ccb_scsiio *csio, const char *fmt, ...)
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__printflike(2, 3);
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int csio_decode_visit(struct ccb_scsiio *csio, const char *fmt,
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void (*arg_put)(void *, int, void *, int, char *),
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void *puthook);
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int buff_decode(u_int8_t *buff, size_t len, const char *fmt, ...)
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__printflike(3, 4);
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int buff_decode_visit(u_int8_t *buff, size_t len, const char *fmt,
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void (*arg_put)(void *, int, void *, int, char *),
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void *puthook);
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int csio_build(struct ccb_scsiio *csio, u_int8_t *data_ptr,
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u_int32_t dxfer_len, u_int32_t flags, int retry_count,
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int timeout, const char *cmd_spec, ...);
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int csio_build_visit(struct ccb_scsiio *csio, u_int8_t *data_ptr,
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u_int32_t dxfer_len, u_int32_t flags, int retry_count,
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int timeout, const char *cmd_spec,
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int (*arg_get)(void *hook, char *field_name),
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void *gethook);
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int csio_encode(struct ccb_scsiio *csio, const char *fmt, ...)
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__printflike(2, 3);
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int buff_encode_visit(u_int8_t *buff, size_t len, const char *fmt,
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int (*arg_get)(void *hook, char *field_name),
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void *gethook);
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int csio_encode_visit(struct ccb_scsiio *csio, const char *fmt,
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int (*arg_get)(void *hook, char *field_name),
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void *gethook);
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__END_DECLS
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#endif /* _CAMLIB_H */
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