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am7990var.h revision 1.10
      1  1.10       leo /*	$NetBSD: am7990var.h,v 1.10 1997/03/09 21:12:42 leo Exp $	*/
      2   1.1       cgd 
      3   1.1       cgd /*
      4   1.1       cgd  * Copyright (c) 1995 Charles M. Hannum.  All rights reserved.
      5   1.1       cgd  *
      6   1.1       cgd  * Redistribution and use in source and binary forms, with or without
      7   1.1       cgd  * modification, are permitted provided that the following conditions
      8   1.1       cgd  * are met:
      9   1.1       cgd  * 1. Redistributions of source code must retain the above copyright
     10   1.1       cgd  *    notice, this list of conditions and the following disclaimer.
     11   1.1       cgd  * 2. Redistributions in binary form must reproduce the above copyright
     12   1.1       cgd  *    notice, this list of conditions and the following disclaimer in the
     13   1.1       cgd  *    documentation and/or other materials provided with the distribution.
     14   1.1       cgd  * 3. All advertising materials mentioning features or use of this software
     15   1.1       cgd  *    must display the following acknowledgement:
     16   1.1       cgd  *	This product includes software developed by Charles M. Hannum.
     17   1.1       cgd  * 4. The name of the author may not be used to endorse or promote products
     18   1.1       cgd  *    derived from this software without specific prior written permission.
     19   1.1       cgd  *
     20   1.1       cgd  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     21   1.1       cgd  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     22   1.1       cgd  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     23   1.1       cgd  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     24   1.1       cgd  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     25   1.1       cgd  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     26   1.1       cgd  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     27   1.1       cgd  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     28   1.1       cgd  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     29   1.1       cgd  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     30   1.1       cgd  */
     31   1.1       cgd 
     32   1.1       cgd #ifdef DDB
     33   1.1       cgd #define	integrate
     34   1.7   thorpej #define hide
     35   1.1       cgd #else
     36   1.6  christos #define	integrate	static __inline
     37   1.7   thorpej #define hide		static
     38   1.1       cgd #endif
     39   1.1       cgd 
     40   1.7   thorpej /*
     41   1.7   thorpej  * Ethernet software status per device.
     42   1.7   thorpej  *
     43   1.7   thorpej  * Each interface is referenced by a network interface structure,
     44   1.7   thorpej  * arpcom.ac_if, which the routing code uses to locate the interface.
     45   1.7   thorpej  * This structure contains the output queue for the interface, its address, ...
     46   1.7   thorpej  *
     47   1.7   thorpej  * NOTE: this structure MUST be the first element in machine-dependent
     48   1.7   thorpej  * le_softc structures!  This is designed SPECIFICALLY to make it possible
     49   1.7   thorpej  * to simply cast a "void *" to "struct le_softc *" or to
     50   1.7   thorpej  * "struct am7990_softc *".  Among other things, this saves a lot of hair
     51   1.7   thorpej  * in the interrupt handlers.
     52   1.7   thorpej  */
     53   1.7   thorpej struct am7990_softc {
     54   1.7   thorpej 	struct	device sc_dev;		/* base device glue */
     55   1.7   thorpej 	struct	arpcom sc_arpcom;	/* Ethernet common part */
     56   1.7   thorpej 
     57   1.7   thorpej 	/*
     58   1.7   thorpej 	 * Memory functions:
     59   1.7   thorpej 	 *
     60   1.7   thorpej 	 *	copy to/from descriptor
     61   1.7   thorpej 	 *	copy to/from buffer
     62   1.7   thorpej 	 *	zero bytes in buffer
     63   1.7   thorpej 	 */
     64   1.7   thorpej 	void	(*sc_copytodesc)
     65   1.7   thorpej 		    __P((struct am7990_softc *, void *, int, int));
     66   1.7   thorpej 	void	(*sc_copyfromdesc)
     67   1.7   thorpej 		    __P((struct am7990_softc *, void *, int, int));
     68   1.7   thorpej 	void	(*sc_copytobuf)
     69   1.7   thorpej 		    __P((struct am7990_softc *, void *, int, int));
     70   1.7   thorpej 	void	(*sc_copyfrombuf)
     71   1.7   thorpej 		    __P((struct am7990_softc *, void *, int, int));
     72   1.7   thorpej 	void	(*sc_zerobuf)
     73   1.7   thorpej 		    __P((struct am7990_softc *, int, int));
     74   1.7   thorpej 
     75   1.7   thorpej 	/*
     76   1.7   thorpej 	 * Machine-dependent functions:
     77   1.7   thorpej 	 *
     78   1.7   thorpej 	 *	read/write CSR
     79   1.7   thorpej 	 *	hardware init hook - may be NULL
     80   1.8    abrown 	 *	no carrier hook - may be NULL
     81   1.7   thorpej 	 */
     82   1.7   thorpej 	u_int16_t (*sc_rdcsr)
     83   1.7   thorpej 		    __P((struct am7990_softc *, u_int16_t));
     84   1.7   thorpej 	void	(*sc_wrcsr)
     85   1.7   thorpej 		    __P((struct am7990_softc *, u_int16_t, u_int16_t));
     86   1.7   thorpej 	void	(*sc_hwinit) __P((struct am7990_softc *));
     87   1.8    abrown 	void	(*sc_nocarrier) __P((struct am7990_softc *));
     88   1.7   thorpej 
     89   1.7   thorpej 	void	*sc_sh;		/* shutdownhook cookie */
     90   1.7   thorpej 
     91   1.7   thorpej 	u_int16_t sc_conf3;	/* CSR3 value */
     92  1.10       leo 	u_int16_t sc_saved_csr0;/* Value of csr0 at time of interrupt */
     93   1.7   thorpej 
     94   1.7   thorpej 	void	*sc_mem;	/* base address of RAM -- CPU's view */
     95   1.7   thorpej 	u_long	sc_addr;	/* base address of RAM -- LANCE's view */
     96   1.7   thorpej 
     97   1.7   thorpej 	u_long	sc_memsize;	/* size of RAM */
     98   1.7   thorpej 
     99   1.7   thorpej 	int	sc_nrbuf;	/* number of receive buffers */
    100   1.7   thorpej 	int	sc_ntbuf;	/* number of transmit buffers */
    101   1.7   thorpej 	int	sc_last_rd;
    102   1.7   thorpej 	int	sc_first_td, sc_last_td, sc_no_td;
    103   1.7   thorpej 
    104   1.7   thorpej 	int	sc_initaddr;
    105   1.7   thorpej 	int	sc_rmdaddr;
    106   1.7   thorpej 	int	sc_tmdaddr;
    107  1.10       leo 	int	*sc_rbufaddr;
    108  1.10       leo 	int	*sc_tbufaddr;
    109   1.7   thorpej 
    110   1.7   thorpej #ifdef LEDEBUG
    111   1.7   thorpej 	int	sc_debug;
    112   1.7   thorpej #endif
    113   1.7   thorpej };
    114   1.7   thorpej 
    115   1.7   thorpej /* Export this to machine-dependent drivers. */
    116   1.7   thorpej extern struct cfdriver le_cd;
    117   1.7   thorpej 
    118   1.7   thorpej void am7990_config __P((struct am7990_softc *));
    119   1.7   thorpej void am7990_init __P((struct am7990_softc *));
    120   1.7   thorpej int am7990_ioctl __P((struct ifnet *, u_long, caddr_t));
    121   1.7   thorpej void am7990_meminit __P((struct am7990_softc *));
    122   1.7   thorpej void am7990_reset __P((struct am7990_softc *));
    123   1.7   thorpej void am7990_setladrf __P((struct arpcom *, u_int16_t *));
    124   1.7   thorpej void am7990_start __P((struct ifnet *));
    125   1.7   thorpej void am7990_stop __P((struct am7990_softc *));
    126   1.7   thorpej void am7990_watchdog __P((struct ifnet *));
    127   1.7   thorpej int am7990_intr __P((void *));
    128   1.1       cgd 
    129   1.2       cgd /*
    130   1.2       cgd  * The following functions are only useful on certain cpu/bus
    131   1.2       cgd  * combinations.  They should be written in assembly language for
    132   1.2       cgd  * maximum efficiency, but machine-independent versions are provided
    133   1.2       cgd  * for drivers that have not yet been optimized.
    134   1.2       cgd  */
    135   1.7   thorpej void am7990_copytobuf_contig __P((struct am7990_softc *, void *, int, int));
    136   1.7   thorpej void am7990_copyfrombuf_contig __P((struct am7990_softc *, void *, int, int));
    137   1.7   thorpej void am7990_zerobuf_contig __P((struct am7990_softc *, int, int));
    138   1.7   thorpej 
    139   1.7   thorpej #if 0	/* Example only - see am7990.c */
    140   1.7   thorpej void am7990_copytobuf_gap2 __P((struct am7990_softc *, void *, int, int));
    141   1.7   thorpej void am7990_copyfrombuf_gap2 __P((struct am7990_softc *, void *, int, int));
    142   1.7   thorpej void am7990_zerobuf_gap2 __P((struct am7990_softc *, int, int));
    143   1.7   thorpej 
    144   1.7   thorpej void am7990_copytobuf_gap16 __P((struct am7990_softc *, void *, int, int));
    145   1.7   thorpej void am7990_copyfrombuf_gap16 __P((struct am7990_softc *, void *, int, int));
    146   1.7   thorpej void am7990_zerobuf_gap16 __P((struct am7990_softc *, int, int));
    147   1.7   thorpej #endif /* Example only */
    148