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adv.h revision 1.13.164.1 
      1 /*      $NetBSD: adv.h,v 1.13.164.1 2020/04/08 14:08:05 martin 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  *
     21  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     22  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     23  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     24  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     25  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     26  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     27  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     28  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     29  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     30  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     31  * POSSIBILITY OF SUCH DAMAGE.
     32  */
     33 
     34 #ifndef _ADVANSYS_NARROW_H_
     35 #define _ADVANSYS_NARROW_H_
     36 
     37 /******************************************************************************/
     38 
     39 /* second level interrupt callback type definition */
     40 typedef int (* ASC_ISR_CALLBACK) (ASC_SOFTC *, ASC_QDONE_INFO *);
     41 
     42 struct adv_ccb
     43 {
     44 	ASC_SG_HEAD	sghead;
     45 	ASC_SCSI_Q	scsiq;
     46 
     47 	struct scsi_sense_data scsi_sense;
     48 
     49 	struct callout ccb_watchdog;
     50 
     51 	TAILQ_ENTRY(adv_ccb) chain;
     52 	struct adv_ccb		*nexthash;
     53 	u_long			hashkey;
     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 	u_int8_t overrun_buf[ASC_OVERRUN_BSIZE];
     78 };
     79 
     80 /*
     81  * Offset of a CCB from the beginning of the control DMA mapping.
     82  */
     83 #define	ADV_CCB_OFF(c)	(offsetof(struct adv_control, ccbs[0]) +	\
     84 		    (((u_long)(c)) - ((u_long)&sc->sc_control->ccbs[0])))
     85 
     86 /******************************************************************************/
     87 
     88 int adv_init(ASC_SOFTC *);
     89 void adv_attach(ASC_SOFTC *);
     90 int adv_detach(ASC_SOFTC *, int);
     91 int adv_intr(void *);
     92 ADV_CCB *adv_ccb_phys_kv(ASC_SOFTC *, u_long);
     93 
     94 /******************************************************************************/
     95 
     96 #endif /* _ADVANSYS_NARROW_H_ */
     97