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hmevar.h revision 1.2 
      1 /*	$NetBSD: hmevar.h,v 1.2 1999/12/18 14:05:37 pk Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1999 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Paul Kranenburg.
      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  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 #include "rnd.h"
     40 
     41 #if NRND > 0
     42 #include <sys/rnd.h>
     43 #endif
     44 
     45 
     46 struct hme_ring {
     47 	/* Ring Descriptors */
     48 	caddr_t		rb_membase;	/* Packet buffer: CPU address */
     49 	bus_addr_t	rb_dmabase;	/* Packet buffer: DMA address */
     50 	caddr_t		rb_txd;		/* Transmit descriptors */
     51 	bus_addr_t	rb_txddma;	/* DMA address of same */
     52 	caddr_t		rb_rxd;		/* Receive descriptors */
     53 	bus_addr_t	rb_rxddma;	/* DMA address of same */
     54 	caddr_t		rb_txbuf;	/* Transmit buffers */
     55 	caddr_t		rb_rxbuf;	/* Receive buffers */
     56 	int		rb_ntbuf;	/* # of transmit buffers */
     57 	int		rb_nrbuf;	/* # of receive buffers */
     58 
     59 	/* Ring Descriptor state */
     60 	int	rb_tdhead, rb_tdtail;
     61 	int	rb_rdtail;
     62 	int	rb_td_nbusy;
     63 };
     64 
     65 struct hme_softc {
     66 	struct device	sc_dev;		/* boilerplate device view */
     67 	struct ethercom	sc_ethercom;	/* Ethernet common part */
     68 	struct mii_data	sc_mii;		/* MII media control */
     69 #define sc_media	sc_mii.mii_media/* shorthand */
     70 
     71 	/* The following bus handles are to be provided by the bus front-end */
     72 	bus_space_tag_t	sc_bustag;	/* bus tag */
     73 	bus_dma_tag_t	sc_dmatag;	/* bus dma tag */
     74 	bus_space_handle_t sc_seb;	/* HME Global registers */
     75 	bus_space_handle_t sc_erx;	/* HME ERX registers */
     76 	bus_space_handle_t sc_etx;	/* HME ETX registers */
     77 	bus_space_handle_t sc_mac;	/* HME MAC registers */
     78 	bus_space_handle_t sc_mif;	/* HME MIF registers */
     79 	int		sc_burst;	/* DVMA burst size in effect */
     80 	int		sc_phys[2];	/* MII instance -> PHY map */
     81 
     82 	/* Ring descriptor */
     83 	struct hme_ring		sc_rb;
     84 #if notused
     85 	void		(*sc_copytobuf) __P((struct hme_softc *,
     86 					     void *, void *, size_t));
     87 	void		(*sc_copyfrombuf) __P((struct hme_softc *,
     88 					      void *, void *, size_t));
     89 #endif
     90 
     91 	int			sc_debug;
     92 	void			*sc_sh;		/* shutdownhook cookie */
     93 	u_int8_t		sc_enaddr[6];	/* MAC address */
     94 
     95 	/* Special hardware hooks */
     96 	void	(*sc_hwreset) __P((struct hme_softc *));
     97 	void	(*sc_hwinit) __P((struct hme_softc *));
     98 
     99 #if NRND > 0
    100 	rndsource_element_t	rnd_source;
    101 #endif
    102 };
    103 
    104 
    105 void	hme_config __P((struct hme_softc *));
    106 void	hme_reset __P((struct hme_softc *));
    107 int	hme_intr __P((void *));
    108