sys/dev/tc/tcdsvar.h

   1 /* $NetBSD: tcdsvar.h,v 1.5 2005/12/11 12:24:00 christos Exp $ */
   2
   3 /*
   4  * Copyright (c) 1995, 1996 Carnegie-Mellon University.
   5  * All rights reserved.
   6  *
   7  * Author: Chris G. Demetriou
   8  *
   9  * Permission to use, copy, modify and distribute this software and
  10  * its documentation is hereby granted, provided that both the copyright
  11  * notice and this permission notice appear in all copies of the
  12  * software, derivative works or modified versions, and any portions
  13  * thereof, and that both notices appear in supporting documentation.
  14  *
  15  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
  16  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
  17  * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
  18  *
  19  * Carnegie Mellon requests users of this software to return to
  20  *
  21  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
  22  *  School of Computer Science
  23  *  Carnegie Mellon University
  24  *  Pittsburgh PA 15213-3890
  25  *
  26  * any improvements or extensions that they make and grant Carnegie the
  27  * rights to redistribute these changes.
  28  */
  29
  30 struct tcds_slotconfig {
  31         /*
  32          * Bookkeeping information
  33          */
  34         int     sc_slot;
  35
  36         bus_space_tag_t sc_bst;                 /* to frob TCDS regs */
  37         bus_space_handle_t sc_bsh;
  38
  39         int     (*sc_intrhand)(void *); /* intr. handler */
  40         void    *sc_intrarg;                    /* intr. handler arg. */
  41         struct evcnt sc_evcnt;                  /* intr. count */
  42         char    sc_name[8];                     /* ev_name */
  43
  44         /*
  45          * Sets of bits in TCDS CIR and IMER that enable/check
  46          * various things.
  47          */
  48         u_int32_t sc_resetbits;
  49         u_int32_t sc_intrmaskbits;
  50         u_int32_t sc_intrbits;
  51         u_int32_t sc_dmabits;
  52         u_int32_t sc_errorbits;
  53
  54         /*
  55          * Offsets to slot-specific DMA resources.
  56          */
  57         bus_size_t sc_sda;
  58         bus_size_t sc_dic;
  59         bus_size_t sc_dud0;
  60         bus_size_t sc_dud1;
  61 };
  62
  63 struct tcdsdev_attach_args {
  64         bus_space_tag_t tcdsda_bst;             /* bus space tag */
  65         bus_space_handle_t tcdsda_bsh;          /* bus space handle */
  66         bus_dma_tag_t tcdsda_dmat;              /* bus dma tag */
  67         struct tcds_slotconfig *tcdsda_sc;      /* slot configuration */
  68         int     tcdsda_chip;                    /* chip number */
  69         int     tcdsda_id;                      /* SCSI ID */
  70         u_int   tcdsda_freq;                    /* chip frequency */
  71         int     tcdsda_period;                  /* min. sync period */
  72         int     tcdsda_variant;                 /* NCR chip variant */
  73         int     tcdsda_fast;                    /* chip does Fast mode */
  74 };
  75
  76 /*
  77  * TCDS functions.
  78  */
  79 void    tcds_intr_establish(device_t, int, int (*)(void *), void *);
  80 void    tcds_intr_disestablish(device_t, int);
  81 void    tcds_dma_enable(struct tcds_slotconfig *, int);
  82 void    tcds_scsi_enable(struct tcds_slotconfig *, int);
  83 int     tcds_scsi_iserr(struct tcds_slotconfig *);
  84 int     tcds_scsi_isintr(struct tcds_slotconfig *, int);
  85 void    tcds_scsi_reset(struct tcds_slotconfig *);