text: /*	$NetBSD: am7990var.h,v 1.17 1997/10/15 05:51:35 explorer Exp $	*/
  
  /*-
   * Copyright (c) 1997 The NetBSD Foundation, Inc.
   * All rights reserved.
   *
   * This code is derived from software contributed to The NetBSD Foundation
   * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
   * NASA Ames Research Center.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   * 3. All advertising materials mentioning features or use of this software
   *    must display the following acknowledgement:
   *	This product includes software developed by the NetBSD
   *	Foundation, Inc. and its contributors.
   * 4. Neither the name of The NetBSD Foundation nor the names of its
   *    contributors may be used to endorse or promote products derived
   *    from this software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
   * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
   * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   * POSSIBILITY OF SUCH DAMAGE.
   */
  
  /*
   * Copyright (c) 1995 Charles M. Hannum.  All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   * 3. All advertising materials mentioning features or use of this software
   *    must display the following acknowledgement:
   *	This product includes software developed by Charles M. Hannum.
   * 4. The name of the author may not be used to endorse or promote products
   *    derived from this software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  #include "rnd.h"
  
  #if NRND > 0
  #include <sys/rnd.h>
  #endif
  
  #ifdef DDB
  #define	integrate
  #define hide
  #else
  #define	integrate	static __inline
  #define hide		static
  #endif
  
  /*
   * Ethernet software status per device.
   *
   * Each interface is referenced by a network interface structure,
   * ethercom.ec_if, which the routing code uses to locate the interface. 
   * This structure contains the output queue for the interface, its address, ...
   *
   * NOTE: this structure MUST be the first element in machine-dependent
   * le_softc structures!  This is designed SPECIFICALLY to make it possible
   * to simply cast a "void *" to "struct le_softc *" or to
   * "struct am7990_softc *".  Among other things, this saves a lot of hair
   * in the interrupt handlers.
   */
  struct am7990_softc {
  	struct	device sc_dev;		/* base device glue */
  	struct	ethercom sc_ethercom;	/* Ethernet common part */
  	struct	ifmedia sc_media;	/* our supported media */
  
  	/*
  	 * Memory functions:
  	 *
  	 *	copy to/from descriptor
  	 *	copy to/from buffer
  	 *	zero bytes in buffer
  	 */
  	void	(*sc_copytodesc)
  		    __P((struct am7990_softc *, void *, int, int));
  	void	(*sc_copyfromdesc)
  		    __P((struct am7990_softc *, void *, int, int));
  	void	(*sc_copytobuf)
  		    __P((struct am7990_softc *, void *, int, int));
  	void	(*sc_copyfrombuf)
  		    __P((struct am7990_softc *, void *, int, int));
  	void	(*sc_zerobuf)
  		    __P((struct am7990_softc *, int, int));
  
  	/*
  	 * Machine-dependent functions:
  	 *
  	 *	read/write CSR
  	 *	hardware reset hook - may be NULL
  	 *	hardware init hook - may be NULL
  	 *	no carrier hook - may be NULL
  	 *	media change hook - may be NULL
  	 */
  	u_int16_t (*sc_rdcsr)
  		    __P((struct am7990_softc *, u_int16_t));
  	void	(*sc_wrcsr)
  		    __P((struct am7990_softc *, u_int16_t, u_int16_t));
  	void	(*sc_hwreset) __P((struct am7990_softc *));
  	void	(*sc_hwinit) __P((struct am7990_softc *));
  	void	(*sc_nocarrier) __P((struct am7990_softc *));
  	int	(*sc_mediachange) __P((struct am7990_softc *));
  	void	(*sc_mediastatus) __P((struct am7990_softc *,
  		    struct ifmediareq *));
  
  	/*
  	 * Media-supported by this interface.  If this is NULL,
  	 * the only supported media is assumed to be "manual".
  	 */
  	int	*sc_supmedia;
  	int	sc_nsupmedia;
  	int	sc_defaultmedia;
  
  	/* PCnet bit to use software selection of a port */
  	int	sc_initmodemedia;
  
  	int	sc_havecarrier;	/* carrier status */
  
  	void	*sc_sh;		/* shutdownhook cookie */
  
  	u_int16_t sc_conf3;	/* CSR3 value */
  	u_int16_t sc_saved_csr0;/* Value of csr0 at time of interrupt */
  
  	void	*sc_mem;	/* base address of RAM -- CPU's view */
  	u_long	sc_addr;	/* base address of RAM -- LANCE's view */
  
  	u_long	sc_memsize;	/* size of RAM */
  
  	int	sc_nrbuf;	/* number of receive buffers */
  	int	sc_ntbuf;	/* number of transmit buffers */
  	int	sc_last_rd;
  	int	sc_first_td, sc_last_td, sc_no_td;
  
  	int	sc_initaddr;
  	int	sc_rmdaddr;
  	int	sc_tmdaddr;
  	int	*sc_rbufaddr;
  	int	*sc_tbufaddr;
  
  #ifdef LEDEBUG
  	int	sc_debug;
  #endif
  	u_int8_t sc_enaddr[6];
  	u_int8_t sc_pad[2];
  #if NRND > 0
  	rndsource_element_t	rnd_source;
  #endif
  };
  
  /* Export this to machine-dependent drivers. */
  extern struct cfdriver le_cd;
  
  void am7990_config __P((struct am7990_softc *));
  void am7990_init __P((struct am7990_softc *));
  int am7990_ioctl __P((struct ifnet *, u_long, caddr_t));
  void am7990_meminit __P((struct am7990_softc *));
  void am7990_reset __P((struct am7990_softc *));
  void am7990_setladrf __P((struct ethercom *, u_int16_t *));
  void am7990_start __P((struct ifnet *));
  void am7990_stop __P((struct am7990_softc *));
  void am7990_watchdog __P((struct ifnet *));
  int am7990_intr __P((void *));
  
  /*
   * The following functions are only useful on certain cpu/bus
   * combinations.  They should be written in assembly language for
   * maximum efficiency, but machine-independent versions are provided
   * for drivers that have not yet been optimized.
   */
  void am7990_copytobuf_contig __P((struct am7990_softc *, void *, int, int));
  void am7990_copyfrombuf_contig __P((struct am7990_softc *, void *, int, int));
  void am7990_zerobuf_contig __P((struct am7990_softc *, int, int));
  
  #if 0	/* Example only - see am7990.c */
  void am7990_copytobuf_gap2 __P((struct am7990_softc *, void *, int, int));
  void am7990_copyfrombuf_gap2 __P((struct am7990_softc *, void *, int, int));
  void am7990_zerobuf_gap2 __P((struct am7990_softc *, int, int));
  
  void am7990_copytobuf_gap16 __P((struct am7990_softc *, void *, int, int));
  void am7990_copyfrombuf_gap16 __P((struct am7990_softc *, void *, int, int));
  void am7990_zerobuf_gap16 __P((struct am7990_softc *, int, int));
  #endif /* Example only */
  