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scsipi_base.h revision 1.14 
      1 /*	$NetBSD: scsipi_base.h,v 1.14 2004/08/21 20:40:36 thorpej Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1998 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Charles M. Hannum.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 #ifndef _DEV_SCSIPI_SCSIPI_BASE_H_
     40 #define _DEV_SCSIPI_SCSIPI_BASE_H_
     41 
     42 struct scsipi_xfer *scsipi_get_xs(struct scsipi_periph *, int);
     43 void	scsipi_put_xs(struct scsipi_xfer *);
     44 
     45 static __inline struct scsipi_xfer *scsipi_make_xs(struct scsipi_periph *,
     46 	    struct scsipi_generic *, int cmdlen, u_char *data_addr,
     47 	    int datalen, int retries, int timeout, struct buf *,
     48 	    int flags) __unused;
     49 
     50 /*
     51  * Make a scsipi_xfer, and return a pointer to it.
     52  */
     53 
     54 static __inline struct scsipi_xfer * __unused
     55 scsipi_make_xs(struct scsipi_periph *periph, struct scsipi_generic *scsipi_cmd,
     56     int cmdlen, u_char *data_addr, int datalen, int retries, int timeout,
     57     struct buf *bp, int flags)
     58 {
     59 	struct scsipi_xfer *xs;
     60 
     61 	if ((xs = scsipi_get_xs(periph, flags)) == NULL)
     62 		return (NULL);
     63 
     64 	/*
     65 	 * Fill out the scsipi_xfer structure.  We don't know whose context
     66 	 * the cmd is in, so copy it.
     67 	 */
     68 	memcpy(&xs->cmdstore, scsipi_cmd, cmdlen);
     69 	xs->cmd = &xs->cmdstore;
     70 	xs->cmdlen = cmdlen;
     71 	xs->data = data_addr;
     72 	xs->datalen = datalen;
     73 	xs->xs_retries = retries;
     74 	xs->timeout = timeout;
     75 	xs->bp = bp;
     76 
     77 	return (xs);
     78 }
     79 
     80 #endif /* _DEV_SCSIPI_SCSIPI_BASE_H_ */
     81