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scsipi_base.h revision 1.8 
      1  1.8  mycroft /*	$NetBSD: scsipi_base.h,v 1.8 1998/08/15 10:10:58 mycroft Exp $	*/
      2  1.2   bouyer 
      3  1.8  mycroft /*-
      4  1.8  mycroft  * Copyright (c) 1998 The NetBSD Foundation, Inc.
      5  1.8  mycroft  * All rights reserved.
      6  1.8  mycroft  *
      7  1.8  mycroft  * This code is derived from software contributed to The NetBSD Foundation
      8  1.8  mycroft  * by Charles M. Hannum.
      9  1.2   bouyer  *
     10  1.2   bouyer  * Redistribution and use in source and binary forms, with or without
     11  1.2   bouyer  * modification, are permitted provided that the following conditions
     12  1.2   bouyer  * are met:
     13  1.2   bouyer  * 1. Redistributions of source code must retain the above copyright
     14  1.2   bouyer  *    notice, this list of conditions and the following disclaimer.
     15  1.2   bouyer  * 2. Redistributions in binary form must reproduce the above copyright
     16  1.2   bouyer  *    notice, this list of conditions and the following disclaimer in the
     17  1.2   bouyer  *    documentation and/or other materials provided with the distribution.
     18  1.2   bouyer  * 3. All advertising materials mentioning features or use of this software
     19  1.2   bouyer  *    must display the following acknowledgement:
     20  1.8  mycroft  *        This product includes software developed by the NetBSD
     21  1.8  mycroft  *        Foundation, Inc. and its contributors.
     22  1.8  mycroft  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  1.8  mycroft  *    contributors may be used to endorse or promote products derived
     24  1.8  mycroft  *    from this software without specific prior written permission.
     25  1.2   bouyer  *
     26  1.8  mycroft  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  1.8  mycroft  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  1.8  mycroft  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  1.8  mycroft  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  1.8  mycroft  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  1.8  mycroft  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  1.8  mycroft  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  1.8  mycroft  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  1.8  mycroft  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  1.8  mycroft  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  1.8  mycroft  * POSSIBILITY OF SUCH DAMAGE.
     37  1.2   bouyer  */
     38  1.2   bouyer 
     39  1.2   bouyer extern LIST_HEAD(xs_free_list, scsipi_xfer) xs_free_list;
     40  1.2   bouyer 
     41  1.2   bouyer struct scsipi_xfer *scsipi_get_xs __P((struct scsipi_link *, int));
     42  1.2   bouyer void scsipi_free_xs __P((struct scsipi_xfer *, int));
     43  1.2   bouyer 
     44  1.2   bouyer static __inline struct scsipi_xfer *scsipi_make_xs __P((struct scsipi_link *,
     45  1.3      cgd 	    struct scsipi_generic *, int cmdlen, u_char *data_addr,
     46  1.3      cgd 	    int datalen, int retries, int timeout, struct buf *,
     47  1.3      cgd 	    int flags)) __attribute__ ((unused));
     48  1.2   bouyer 
     49  1.2   bouyer /*
     50  1.2   bouyer  * Make a scsipi_xfer, and return a pointer to it.
     51  1.2   bouyer  */
     52  1.2   bouyer 
     53  1.2   bouyer static __inline struct scsipi_xfer *
     54  1.2   bouyer scsipi_make_xs(sc_link, scsipi_cmd, cmdlen, data_addr, datalen,
     55  1.3      cgd     retries, timeout, bp, flags)
     56  1.2   bouyer 	struct scsipi_link *sc_link;
     57  1.2   bouyer 	struct scsipi_generic *scsipi_cmd;
     58  1.2   bouyer 	int cmdlen;
     59  1.2   bouyer 	u_char *data_addr;
     60  1.2   bouyer 	int datalen;
     61  1.2   bouyer 	int retries;
     62  1.2   bouyer 	int timeout;
     63  1.2   bouyer 	struct buf *bp;
     64  1.2   bouyer 	int flags;
     65  1.2   bouyer {
     66  1.2   bouyer 	struct scsipi_xfer *xs;
     67  1.2   bouyer 
     68  1.2   bouyer 	if ((xs = scsipi_get_xs(sc_link, flags)) == NULL)
     69  1.4    enami 		return (NULL);
     70  1.2   bouyer 
     71  1.2   bouyer 	/*
     72  1.2   bouyer 	 * Fill out the scsipi_xfer structure.  We don't know whose context
     73  1.2   bouyer 	 * the cmd is in, so copy it.
     74  1.2   bouyer 	 */
     75  1.2   bouyer 	xs->sc_link = sc_link;
     76  1.2   bouyer 	bcopy(scsipi_cmd, &xs->cmdstore, cmdlen);
     77  1.2   bouyer 	xs->cmd = &xs->cmdstore;
     78  1.2   bouyer 	xs->cmdlen = cmdlen;
     79  1.2   bouyer 	xs->data = data_addr;
     80  1.2   bouyer 	xs->datalen = datalen;
     81  1.2   bouyer 	xs->retries = retries;
     82  1.2   bouyer 	xs->timeout = timeout;
     83  1.2   bouyer 	xs->bp = bp;
     84  1.2   bouyer 
     85  1.4    enami 	return (xs);
     86  1.2   bouyer }
     87