sys/dev/ic/smc90cx6var.h

   1 /*      $NetBSD: smc90cx6var.h,v 1.8 2005/12/11 12:21:28 christos Exp $ */
   2
   3 /*-
   4  * Copyright (c) 1994, 1995, 1998 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Ignatios Souvatzis.
   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  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 /*
  33  * BAH (SMC 8bit ARCnet chipset) k/dpi
  34  *
  35  * The SMC 8bit ARCnet chip family uses a register and a memory window, which
  36  * we get passed via bus_space_tags and bus_space_handles.
  37  *
  38  * As the reset functionality differs between the Amiga boards (using the
  39  * 90c26 chip) and middle-aged ISA boards (using the 90c56 chip), we have
  40  * a sc_reset callback function in the softc, which does a stop function
  41  * (reset and leave dead) or a reset function depending on wether the 2nd
  42  * parameter is 0 or 1.
  43  */
  44
  45 #ifndef _SMC90CX6VAR_H_
  46 #define _SMC90CX6VAR_H_
  47
  48 #include <sys/callout.h>
  49
  50 struct bah_softc {
  51         struct  device          sc_dev;
  52         struct  arccom          sc_arccom;      /* Common arcnet structures */
  53         bus_space_tag_t         sc_bst_r, sc_bst_m;
  54         bus_space_handle_t      sc_regs, sc_mem;
  55         void    (*sc_reset)(struct bah_softc *, int);
  56         void    *sc_rxcookie;           /* softcallback cookies */
  57         void    *sc_txcookie;
  58         struct callout sc_recon_ch;
  59         u_long  sc_recontime;           /* seconds only, I'm lazy */
  60         u_long  sc_reconcount;          /* for the above */
  61         u_long  sc_reconcount_excessive; /* for the above */
  62 #define ARC_EXCESSIVE_RECONS 20
  63 #define ARC_EXCESSIVE_RECONS_REWARN 400
  64         u_char  sc_intmask;
  65         u_char  sc_rx_act;              /* 2..3 */
  66         u_char  sc_tx_act;              /* 0..1 */
  67         u_char  sc_rx_fillcount;
  68         u_char  sc_tx_fillcount;
  69         u_char  sc_broadcast[2];        /* is it a broadcast packet? */
  70         u_char  sc_retransmits[2];      /* unused at the moment */
  71 };
  72
  73 void    bah_attach_subr(struct bah_softc *);
  74 int     bahintr(void *);
  75
  76 #endif