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      1 /*	$NetBSD: mb8795var.h,v 1.16 2023/02/03 23:04:35 tsutsui 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  *
     15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     25  */
     26 
     27 #include <sys/rndsource.h>
     28 
     29 #define MB8795_NRXBUFS (32)
     30 
     31 struct mb8795_softc;
     32 
     33 /*
     34  * Function switch used as glue to MD code.
     35  */
     36 struct mb8795_glue {
     37 	/* Mandatory entry points. */
     38 	u_char	(*gl_read_reg)(struct mb8795_softc *, int);
     39 	void	(*gl_write_reg)(struct mb8795_softc *, int, u_char);
     40 	void	(*gl_dma_reset)(struct mb8795_softc *);
     41 	void	(*gl_dma_rx_setup)(struct mb8795_softc *);
     42 	void	(*gl_dma_rx_go)(struct mb8795_softc *);
     43 	struct mbuf *	(*gl_dma_rx_mbuf)(struct mb8795_softc *);
     44 	void	(*gl_dma_tx_setup)(struct mb8795_softc *);
     45 	void	(*gl_dma_tx_go)(struct mb8795_softc *);
     46 	int	(*gl_dma_tx_mbuf)(struct mb8795_softc *, struct mbuf *);
     47 	int	(*gl_dma_tx_isactive)(struct mb8795_softc *);
     48 	/* Optional entry points. */
     49 };
     50 
     51 struct mb8795_softc {
     52 	device_t		sc_dev;		/* base device glue */
     53 	struct ethercom		sc_ethercom;	/* Ethernet common part */
     54 
     55 	struct	mb8795_glue 	*sc_glue;	/* glue to MD code */
     56 
     57 	void	*sc_sh;		/* shutdownhook cookie */
     58 
     59 	int sc_debug;
     60 
     61 	bus_space_tag_t sc_bmap_bst;    /* bus space tag */
     62 
     63 	bus_space_handle_t sc_bmap_bsh; /* bus space handle */
     64 
     65 	uint8_t sc_enaddr[6];
     66 
     67 	struct ifaltq sc_tx_snd;
     68 
     69 	struct ifmedia sc_media;
     70 
     71 	krndsource_t     rnd_source;
     72 
     73 };
     74 
     75 /*
     76  * Macros to read and write the chip's registers.
     77  */
     78 #define	MB_READ_REG(sc, reg)		\
     79 	(*(sc)->sc_glue->gl_read_reg)((sc), (reg))
     80 #define	MB_WRITE_REG(sc, reg, val)	\
     81 	(*(sc)->sc_glue->gl_write_reg)((sc), (reg), (val))
     82 
     83 /*
     84  * DMA macros for mb8795
     85  */
     86 #define	MBDMA_RESET(sc)	(*(sc)->sc_glue->gl_dma_reset)((sc))
     87 #define	MBDMA_SETUP(sc, addr, len, datain, dmasize)	\
     88      (*(sc)->sc_glue->gl_dma_setup)((sc), (addr), (len), (datain), (dmasize))
     89 #define	MBDMA_GO(sc)		(*(sc)->sc_glue->gl_dma_go)((sc))
     90 #define	MBDMA_ISACTIVE(sc)	(*(sc)->sc_glue->gl_dma_isactive)((sc))
     91 #define MBDMA_RX_SETUP(sc)	(*(sc)->sc_glue->gl_dma_rx_setup) ((sc))
     92 #define MBDMA_RX_GO(sc)		(*(sc)->sc_glue->gl_dma_rx_go) ((sc))
     93 #define MBDMA_RX_MBUF(sc)	(*(sc)->sc_glue->gl_dma_rx_mbuf) ((sc))
     94 #define MBDMA_TX_SETUP(sc)	(*(sc)->sc_glue->gl_dma_tx_setup) ((sc))
     95 #define MBDMA_TX_GO(sc)		(*(sc)->sc_glue->gl_dma_tx_go) ((sc))
     96 #define MBDMA_TX_MBUF(sc,m)	(*(sc)->sc_glue->gl_dma_tx_mbuf) ((sc), (m))
     97 #define	MBDMA_TX_ISACTIVE(sc)	(*(sc)->sc_glue->gl_dma_tx_isactive)((sc))
     98 
     99 void mb8795_config(struct mb8795_softc *, int *, int, int);
    100 void mb8795_init(struct mb8795_softc *);
    101 int mb8795_ioctl(struct ifnet *, u_long, void *);
    102 void mb8795_reset(struct mb8795_softc *);
    103 void mb8795_start(struct ifnet *);
    104 void mb8795_stop(struct mb8795_softc *);
    105 void mb8795_watchdog(struct ifnet *);
    106 
    107 void mb8795_rint(struct mb8795_softc *);
    108 void mb8795_tint(struct mb8795_softc *);
    109