The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/cam/cam_xpt_periph.h

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    1 /*-
    2  * Data structures and definitions for dealing with the 
    3  * Common Access Method Transport (xpt) layer from peripheral
    4  * drivers.
    5  *
    6  * Copyright (c) 1997 Justin T. Gibbs.
    7  * All rights reserved.
    8  *
    9  * Redistribution and use in source and binary forms, with or without
   10  * modification, are permitted provided that the following conditions
   11  * are met:
   12  * 1. Redistributions of source code must retain the above copyright
   13  *    notice, this list of conditions, and the following disclaimer,
   14  *    without modification, immediately at the beginning of the file.
   15  * 2. The name of the author may not be used to endorse or promote products
   16  *    derived from this software without specific prior written permission.
   17  *
   18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   21  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
   22  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   28  * SUCH DAMAGE.
   29  *
   30  * $FreeBSD$
   31  */
   32 
   33 #ifndef _CAM_CAM_XPT_PERIPH_H
   34 #define _CAM_CAM_XPT_PERIPH_H 1
   35 
   36 #include <cam/cam_xpt.h>
   37 
   38 /* Functions accessed by the peripheral drivers */
   39 #ifdef _KERNEL
   40 void            xpt_polled_action(union ccb *ccb);
   41 union ccb       *xpt_alloc_ccb(void);
   42 union ccb       *xpt_alloc_ccb_nowait(void);
   43 void            xpt_free_ccb(union ccb *free_ccb);
   44 void            xpt_release_ccb(union ccb *released_ccb);
   45 void            xpt_schedule(struct cam_periph *perph, u_int32_t new_priority);
   46 int32_t         xpt_add_periph(struct cam_periph *periph);
   47 void            xpt_remove_periph(struct cam_periph *periph);
   48 void            xpt_announce_periph(struct cam_periph *periph,
   49                                     char *announce_string);
   50 #endif
   51 
   52 #endif /* _CAM_CAM_XPT_PERIPH_H */

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