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adv.h revision 1.1 
      1 /*
      2  * Generic driver definitions and exported functions for the Advanced
      3  * Systems Inc. SCSI controllers
      4  *
      5  * Copyright (c) 1998 The NetBSD Foundation, Inc.
      6  * All rights reserved.
      7  *
      8  * Author: Baldassare Dante Profeta <dante (at) mclink.it>
      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 _ADVANSYS_H_
     40 #define _ADVANSYS_H_
     41 
     42 #include <dev/ic/advlib.h>
     43 
     44 /******************************************************************************/
     45 
     46 struct adv_ccb
     47 {
     48 	ASC_SG_HEAD	sghead;
     49 	ASC_SCSI_Q	scsiq;
     50 
     51 	struct scsipi_sense_data scsi_sense;
     52 
     53 	TAILQ_ENTRY(adv_ccb) chain;
     54 	struct scsipi_xfer	*xs;	/* the scsipi_xfer for this cmd */
     55 	int			flags;	/* see below */
     56 
     57 	int			timeout;
     58 	/*
     59 	 * This DMA map maps the buffer involved in the transfer.
     60 	 */
     61 	bus_dmamap_t		dmamap_xfer;
     62 };
     63 
     64 typedef struct adv_ccb ADV_CCB;
     65 
     66 /* flags for ADV_CCB */
     67 #define CCB_ALLOC       0x01
     68 #define CCB_ABORT       0x02
     69 #define	CCB_WATCHDOG	0x10
     70 
     71 
     72 #define ADV_MAX_CCB	32
     73 
     74 struct adv_control
     75 {
     76 	ADV_CCB	ccbs[ADV_MAX_CCB];	/* all our control blocks */
     77 };
     78 
     79 /*
     80  * Offset of a CCB from the beginning of the control DMA mapping.
     81  */
     82 #define	ADV_CCB_OFF(c)	(offsetof(struct adv_control, ccbs[0]) +	\
     83 		    (((u_long)(c)) - ((u_long)&sc->sc_control->ccbs[0])))
     84 
     85 /******************************************************************************/
     86 
     87 int adv_init __P((ASC_SOFTC *sc));
     88 void adv_attach __P((ASC_SOFTC *sc));
     89 int adv_intr __P((void *arg));
     90 
     91 /******************************************************************************/
     92 
     93 #endif /* _ADVANSYS_H_ */
     94