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mb8795var.h revision 1.3.2.3 
      1 /*	$NetBSD: mb8795var.h,v 1.3.2.3 2002/10/10 18:34:38 jdolecek 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 #if 0
     57 	int	(*gl_dma_setup)(struct mb8795_softc *,
     58 		    caddr_t *, size_t *, int, size_t *);
     59 	void	(*gl_dma_go)(struct mb8795_softc *);
     60 	void	(*gl_dma_stop)(struct mb8795_softc *);
     61 	int	(*gl_dma_isactive)(struct mb8795_softc *);
     62 #endif
     63 	/* Optional entry points. */
     64 };
     65 
     66 struct mb8795_softc {
     67 	struct device		sc_dev;		/* base device glue */
     68 	struct ethercom		sc_ethercom;	/* Ethernet common part */
     69 
     70 	struct	mb8795_glue 	*sc_glue;	/* glue to MD code */
     71 
     72 	void	*sc_sh;		/* shutdownhook cookie */
     73 
     74 	int sc_debug;
     75 
     76 	bus_space_tag_t sc_bmap_bst;    /* bus space tag */
     77 
     78 	bus_space_handle_t sc_bmap_bsh; /* bus space handle */
     79 
     80 	u_int8_t sc_enaddr[6];
     81 
     82 	struct ifaltq sc_tx_snd;
     83 
     84 	struct ifmedia sc_media;
     85 
     86 #if NRND > 0
     87 	rndsource_element_t     rnd_source;
     88 #endif /* NRND */
     89 
     90 };
     91 
     92 /*
     93  * Macros to read and write the chip's registers.
     94  */
     95 #define	MB_READ_REG(sc, reg)		\
     96 	(*(sc)->sc_glue->gl_read_reg)((sc), (reg))
     97 #define	MB_WRITE_REG(sc, reg, val)	\
     98 	(*(sc)->sc_glue->gl_write_reg)((sc), (reg), (val))
     99 
    100 /*
    101  * DMA macros for mb8795
    102  */
    103 #define	MBDMA_RESET(sc)	(*(sc)->sc_glue->gl_dma_reset)((sc))
    104 #define	MBDMA_SETUP(sc, addr, len, datain, dmasize)	\
    105      (*(sc)->sc_glue->gl_dma_setup)((sc), (addr), (len), (datain), (dmasize))
    106 #define	MBDMA_GO(sc)		(*(sc)->sc_glue->gl_dma_go)((sc))
    107 #define	MBDMA_ISACTIVE(sc)	(*(sc)->sc_glue->gl_dma_isactive)((sc))
    108 #define MBDMA_RX_SETUP(sc)	(*(sc)->sc_glue->gl_dma_rx_setup) ((sc))
    109 #define MBDMA_RX_GO(sc)		(*(sc)->sc_glue->gl_dma_rx_go) ((sc))
    110 #define MBDMA_RX_MBUF(sc)	(*(sc)->sc_glue->gl_dma_rx_mbuf) ((sc))
    111 #define MBDMA_TX_SETUP(sc)	(*(sc)->sc_glue->gl_dma_tx_setup) ((sc))
    112 #define MBDMA_TX_GO(sc)		(*(sc)->sc_glue->gl_dma_tx_go) ((sc))
    113 #define MBDMA_TX_MBUF(sc,m)	(*(sc)->sc_glue->gl_dma_tx_mbuf) ((sc), (m))
    114 #define	MBDMA_TX_ISACTIVE(sc)	(*(sc)->sc_glue->gl_dma_tx_isactive)((sc))
    115 
    116 void mb8795_config __P((struct mb8795_softc *, int *, int, int));
    117 void mb8795_init __P((struct mb8795_softc *));
    118 int mb8795_ioctl __P((struct ifnet *, u_long, caddr_t));
    119 void mb8795_reset __P((struct mb8795_softc *));
    120 void mb8795_start __P((struct ifnet *));
    121 void mb8795_stop __P((struct mb8795_softc *));
    122 void mb8795_watchdog __P((struct ifnet *));
    123 
    124 void mb8795_rint __P((struct mb8795_softc *));
    125 void mb8795_tint __P((struct mb8795_softc *));
    126