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smc90cx6var.h revision 1.2 
      1 /*	$NetBSD: smc90cx6var.h,v 1.2 1998/10/20 22:18:14 is Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1994, 1995, 1998 Ignatios Souvatzis
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *      This product includes software developed by Ignatios Souvatzis
     18  *      for the NetBSD project.
     19  * 4. The name of the author may not be used to endorse or promote products
     20  *    derived from this software without specific prior written permission
     21  *
     22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     23  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     24  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     25  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     26  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     27  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     28  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     29  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     30  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     31  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     32  */
     33 
     34 /*
     35  * BAH (SMC 8bit ARCnet chipset) k/dpi
     36  *
     37  * The SMC 8bit ARCnet chip family uses a register and a memory window, which
     38  * we get passed via bus_space_tags and bus_space_handles.
     39  *
     40  * As the reset functionality differs between the Amiga boards (using the
     41  * 90c26 chip) and middle-aged ISA boards (using the 90c56 chip), we have
     42  * a sc_reset callback function in the softc, which does a stop function
     43  * (reset and leave dead) or a reset function depending on wether the 2nd
     44  * parameter is 0 or 1.
     45  */
     46 
     47 #ifndef _SMC90CX6VAR_H_
     48 #define _SMC90CX6VAR_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 	u_long	sc_recontime;		/* seconds only, I'm lazy */
     59 	u_long	sc_reconcount;		/* for the above */
     60 	u_long	sc_reconcount_excessive; /* for the above */
     61 #define ARC_EXCESSIVE_RECONS 20
     62 #define ARC_EXCESSIVE_RECONS_REWARN 400
     63 	u_char	sc_intmask;
     64 	u_char	sc_rx_act;		/* 2..3 */
     65 	u_char	sc_tx_act;		/* 0..1 */
     66 	u_char	sc_rx_fillcount;
     67 	u_char	sc_tx_fillcount;
     68 	u_char	sc_broadcast[2];	/* is it a broadcast packet? */
     69 	u_char	sc_retransmits[2];	/* unused at the moment */
     70 };
     71 
     72 void	bah_attach_subr __P((struct bah_softc *));
     73 int	bahintr __P((void *));
     74 
     75 #endif
     76