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mb8795var.h revision 1.9 
      1 /*	$NetBSD: mb8795var.h,v 1.9 2005/12/11 12:18:25 christos Exp $	*/
      2 /*
      3  * Copyright (c) 1998 Darrin B. Jewell
      4  * All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  * 3. All advertising materials mentioning features or use of this software
     15  *    must display the following acknowledgement:
     16  *      This product includes software developed by Darrin B. Jewell
     17  * 4. The name of the author may not be used to endorse or promote products
     18  *    derived from this software without specific prior written permission
     19  *
     20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     21  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     22  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     23  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     24  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     25  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     29  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #include "rnd.h"                /* is random device-driver configured? */
     33 #if NRND > 0
     34 #include <sys/rnd.h>
     35 #endif  /* NRND */
     36 
     37 #define MB8795_NRXBUFS (32)
     38 
     39 struct mb8795_softc;
     40 
     41 /*
     42  * Function switch used as glue to MD code.
     43  */
     44 struct mb8795_glue {
     45 	/* Mandatory entry points. */
     46 	u_char	(*gl_read_reg)(struct mb8795_softc *, int);
     47 	void	(*gl_write_reg)(struct mb8795_softc *, int, u_char);
     48 	void	(*gl_dma_reset)(struct mb8795_softc *);
     49 	void	(*gl_dma_rx_setup)(struct mb8795_softc *);
     50 	void	(*gl_dma_rx_go)(struct mb8795_softc *);
     51 	struct mbuf *	(*gl_dma_rx_mbuf)(struct mb8795_softc *);
     52 	void	(*gl_dma_tx_setup)(struct mb8795_softc *);
     53 	void	(*gl_dma_tx_go)(struct mb8795_softc *);
     54 	int	(*gl_dma_tx_mbuf)(struct mb8795_softc *, struct mbuf *);
     55 	int	(*gl_dma_tx_isactive)(struct mb8795_softc *);
     56 	/* Optional entry points. */
     57 };
     58 
     59 struct mb8795_softc {
     60 	struct device		sc_dev;		/* base device glue */
     61 	struct ethercom		sc_ethercom;	/* Ethernet common part */
     62 
     63 	struct	mb8795_glue 	*sc_glue;	/* glue to MD code */
     64 
     65 	void	*sc_sh;		/* shutdownhook cookie */
     66 
     67 	int sc_debug;
     68 
     69 	bus_space_tag_t sc_bmap_bst;    /* bus space tag */
     70 
     71 	bus_space_handle_t sc_bmap_bsh; /* bus space handle */
     72 
     73 	u_int8_t sc_enaddr[6];
     74 
     75 	struct ifaltq sc_tx_snd;
     76 
     77 	struct ifmedia sc_media;
     78 
     79 #if NRND > 0
     80 	rndsource_element_t     rnd_source;
     81 #endif /* NRND */
     82 
     83 };
     84 
     85 /*
     86  * Macros to read and write the chip's registers.
     87  */
     88 #define	MB_READ_REG(sc, reg)		\
     89 	(*(sc)->sc_glue->gl_read_reg)((sc), (reg))
     90 #define	MB_WRITE_REG(sc, reg, val)	\
     91 	(*(sc)->sc_glue->gl_write_reg)((sc), (reg), (val))
     92 
     93 /*
     94  * DMA macros for mb8795
     95  */
     96 #define	MBDMA_RESET(sc)	(*(sc)->sc_glue->gl_dma_reset)((sc))
     97 #define	MBDMA_SETUP(sc, addr, len, datain, dmasize)	\
     98      (*(sc)->sc_glue->gl_dma_setup)((sc), (addr), (len), (datain), (dmasize))
     99 #define	MBDMA_GO(sc)		(*(sc)->sc_glue->gl_dma_go)((sc))
    100 #define	MBDMA_ISACTIVE(sc)	(*(sc)->sc_glue->gl_dma_isactive)((sc))
    101 #define MBDMA_RX_SETUP(sc)	(*(sc)->sc_glue->gl_dma_rx_setup) ((sc))
    102 #define MBDMA_RX_GO(sc)		(*(sc)->sc_glue->gl_dma_rx_go) ((sc))
    103 #define MBDMA_RX_MBUF(sc)	(*(sc)->sc_glue->gl_dma_rx_mbuf) ((sc))
    104 #define MBDMA_TX_SETUP(sc)	(*(sc)->sc_glue->gl_dma_tx_setup) ((sc))
    105 #define MBDMA_TX_GO(sc)		(*(sc)->sc_glue->gl_dma_tx_go) ((sc))
    106 #define MBDMA_TX_MBUF(sc,m)	(*(sc)->sc_glue->gl_dma_tx_mbuf) ((sc), (m))
    107 #define	MBDMA_TX_ISACTIVE(sc)	(*(sc)->sc_glue->gl_dma_tx_isactive)((sc))
    108 
    109 void mb8795_config(struct mb8795_softc *, int *, int, int);
    110 void mb8795_init(struct mb8795_softc *);
    111 int mb8795_ioctl(struct ifnet *, u_long, caddr_t);
    112 void mb8795_reset(struct mb8795_softc *);
    113 void mb8795_start(struct ifnet *);
    114 void mb8795_stop(struct mb8795_softc *);
    115 void mb8795_watchdog(struct ifnet *);
    116 
    117 void mb8795_rint(struct mb8795_softc *);
    118 void mb8795_tint(struct mb8795_softc *);
    119