sys/dev/ic/adv.h

   1 /*      $NetBSD: adv.h,v 1.8.22.5 2005/03/04 16:41:23 skrll 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@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 scsi_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(ASC_SOFTC *);
  96 void adv_attach(ASC_SOFTC *);
  97 int adv_detach(ASC_SOFTC *, int);
  98 int adv_intr(void *);
  99 ADV_CCB *adv_ccb_phys_kv(ASC_SOFTC *, u_long);
 100
 101 /******************************************************************************/
 102
 103 #endif /* _ADVANSYS_NARROW_H_ */