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      1 /*	$NetBSD: hmevar.h,v 1.24 2015/04/13 16:33:24 riastradh 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  *
     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 #include <sys/callout.h>
     33 #include <sys/rndsource.h>
     34 
     35 struct hme_ring {
     36 	/* Ring Descriptors */
     37 	void *		rb_membase;	/* Packet buffer: CPU address */
     38 	bus_addr_t	rb_dmabase;	/* Packet buffer: DMA address */
     39 	void *		rb_txd;		/* Transmit descriptors */
     40 	bus_addr_t	rb_txddma;	/* DMA address of same */
     41 	void *		rb_rxd;		/* Receive descriptors */
     42 	bus_addr_t	rb_rxddma;	/* DMA address of same */
     43 	void *		rb_txbuf;	/* Transmit buffers */
     44 	void *		rb_rxbuf;	/* Receive buffers */
     45 	int		rb_ntbuf;	/* # of transmit buffers */
     46 	int		rb_nrbuf;	/* # of receive buffers */
     47 
     48 	/* Ring Descriptor state */
     49 	int	rb_tdhead, rb_tdtail;
     50 	int	rb_rdtail;
     51 	int	rb_td_nbusy;
     52 };
     53 
     54 struct hme_softc {
     55 	device_t	sc_dev;		/* boilerplate device view */
     56 	struct ethercom	sc_ethercom;	/* Ethernet common part */
     57 	struct mii_data	sc_mii;		/* MII media control */
     58 	struct callout	sc_tick_ch;	/* tick callout */
     59 
     60 	/* The following bus handles are to be provided by the bus front-end */
     61 	bus_space_tag_t	sc_bustag;	/* bus tag */
     62 	bus_dma_tag_t	sc_dmatag;	/* bus dma tag */
     63 	bus_dmamap_t	sc_dmamap;	/* bus dma handle */
     64 	bus_space_handle_t sc_seb;	/* HME Global registers */
     65 	bus_space_handle_t sc_erx;	/* HME ERX registers */
     66 	bus_space_handle_t sc_etx;	/* HME ETX registers */
     67 	bus_space_handle_t sc_mac;	/* HME MAC registers */
     68 	bus_space_handle_t sc_mif;	/* HME MIF registers */
     69 	int		sc_burst;	/* DVMA burst size in effect */
     70 	int		sc_phys[2];	/* MII instance -> PHY map */
     71 
     72 	int		sc_pci;		/* XXXXX -- PCI buses are LE. */
     73 
     74 	/* Ring descriptor */
     75 	struct hme_ring		sc_rb;
     76 #if notused
     77 	void		(*sc_copytobuf)(struct hme_softc *,
     78 					     void *, void *, size_t);
     79 	void		(*sc_copyfrombuf)(struct hme_softc *,
     80 					      void *, void *, size_t);
     81 #endif
     82 
     83 	int			sc_debug;
     84 	int			sc_ec_capenable;
     85 	short			sc_if_flags;
     86 	uint8_t			sc_enaddr[ETHER_ADDR_LEN]; /* MAC address */
     87 
     88 	/* Special hardware hooks */
     89 	void	(*sc_hwreset)(struct hme_softc *);
     90 	void	(*sc_hwinit)(struct hme_softc *);
     91 
     92 	krndsource_t	rnd_source;
     93 };
     94 
     95 
     96 void	hme_config(struct hme_softc *);
     97 int	hme_intr(void *);
     98