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adv.h revision 1.7 
      1 /*      $NetBSD: adv.h,v 1.7 2000/03/23 07:01:28 thorpej Exp $        */
      2 
      3 /*
      4  * Generic driver definitions and exported functions for the Advanced
      5  * Systems Inc. Narrow SCSI controllers
      6  *
      7  * Copyright (c) 1998 The NetBSD Foundation, Inc.
      8  * All rights reserved.
      9  *
     10  * Author: Baldassare Dante Profeta <dante (at) mclink.it>
     11  *
     12  * Redistribution and use in source and binary forms, with or without
     13  * modification, are permitted provided that the following conditions
     14  * are met:
     15  * 1. Redistributions of source code must retain the above copyright
     16  *    notice, this list of conditions and the following disclaimer.
     17  * 2. Redistributions in binary form must reproduce the above copyright
     18  *    notice, this list of conditions and the following disclaimer in the
     19  *    documentation and/or other materials provided with the distribution.
     20  * 3. All advertising materials mentioning features or use of this software
     21  *    must display the following acknowledgement:
     22  *        This product includes software developed by the NetBSD
     23  *        Foundation, Inc. and its contributors.
     24  * 4. Neither the name of The NetBSD Foundation nor the names of its
     25  *    contributors may be used to endorse or promote products derived
     26  *    from this software without specific prior written permission.
     27  *
     28  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     29  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     30  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     31  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     32  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     33  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     34  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     35  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     36  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     37  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     38  * POSSIBILITY OF SUCH DAMAGE.
     39  */
     40 
     41 #ifndef _ADVANSYS_NARROW_H_
     42 #define _ADVANSYS_NARROW_H_
     43 
     44 /******************************************************************************/
     45 
     46 /* second level interrupt callback type definition */
     47 typedef int (* ASC_ISR_CALLBACK) (ASC_SOFTC *, ASC_QDONE_INFO *);
     48 
     49 struct adv_ccb
     50 {
     51 	ASC_SG_HEAD	sghead;
     52 	ASC_SCSI_Q	scsiq;
     53 
     54 	struct scsipi_sense_data scsi_sense;
     55 
     56 	struct callout ccb_watchdog;
     57 
     58 	TAILQ_ENTRY(adv_ccb) chain;
     59 	struct adv_ccb		*nexthash;
     60 	u_long			hashkey;
     61 	struct scsipi_xfer	*xs;	/* the scsipi_xfer for this cmd */
     62 	int			flags;	/* see below */
     63 
     64 	int			timeout;
     65 	/*
     66 	 * This DMA map maps the buffer involved in the transfer.
     67 	 */
     68 	bus_dmamap_t		dmamap_xfer;
     69 };
     70 
     71 typedef struct adv_ccb ADV_CCB;
     72 
     73 /* flags for ADV_CCB */
     74 #define CCB_ALLOC       0x01
     75 #define CCB_ABORT       0x02
     76 #define	CCB_WATCHDOG	0x10
     77 
     78 
     79 #define ADV_MAX_CCB	32
     80 
     81 struct adv_control
     82 {
     83 	ADV_CCB	ccbs[ADV_MAX_CCB];	/* all our control blocks */
     84 	u_int8_t overrun_buf[ASC_OVERRUN_BSIZE];
     85 };
     86 
     87 /*
     88  * Offset of a CCB from the beginning of the control DMA mapping.
     89  */
     90 #define	ADV_CCB_OFF(c)	(offsetof(struct adv_control, ccbs[0]) +	\
     91 		    (((u_long)(c)) - ((u_long)&sc->sc_control->ccbs[0])))
     92 
     93 /******************************************************************************/
     94 
     95 int adv_init __P((ASC_SOFTC *sc));
     96 void adv_attach __P((ASC_SOFTC *sc));
     97 int adv_intr __P((void *arg));
     98 ADV_CCB *adv_ccb_phys_kv __P((ASC_SOFTC *, u_long));
     99 
    100 /******************************************************************************/
    101 
    102 #endif /* _ADVANSYS_NARROW_H_ */
    103