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if_mcvar.h revision 1.3 
      1 /*	$NetBSD: if_mcvar.h,v 1.3 1997/12/07 17:47:48 scottr Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1997 David Huang <khym (at) bga.com>
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. The name of the author may not be used to endorse or promote products
     13  *    derived from this software without specific prior written permission
     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 
     28 #ifdef DDB
     29 #define	integrate
     30 #define hide
     31 #else
     32 #define	integrate	static __inline
     33 #define hide		static
     34 #endif
     35 
     36 #define	MC_REGSPACING	16
     37 #define	MC_REGSIZE	MACE_NREGS * MC_REGSPACING
     38 #define	MACE_REG(x)	((x)*MC_REGSPACING)
     39 
     40 #define	NIC_GET(sc, reg)	(bus_space_read_1((sc)->sc_regt,	\
     41 				    (sc)->sc_regh, MACE_REG(reg)))
     42 
     43 #define	NIC_PUT(sc, reg, val)	(bus_space_write_1((sc)->sc_regt,	\
     44 				    (sc)->sc_regh, MACE_REG(reg), (val)))
     45 
     46 #ifndef	MC_RXDMABUFS
     47 #define	MC_RXDMABUFS	4
     48 #endif
     49 #if (MC_RXDMABUFS < 2)
     50 #error Must have at least two buffers for DMA!
     51 #endif
     52 
     53 #define	MC_NPAGES	((MC_RXDMABUFS * 0x800 + NBPG - 1) / NBPG)
     54 
     55 struct mc_rxframe {
     56 	u_int8_t	rx_rcvcnt;
     57 	u_int8_t	rx_rcvsts;
     58 	u_int8_t	rx_rntpc;
     59 	u_int8_t	rx_rcvcc;
     60 	u_char		*rx_frame;
     61 };
     62 
     63 struct mc_softc {
     64 	struct device	sc_dev;		/* base device glue */
     65 	struct ethercom	sc_ethercom;	/* Ethernet common part */
     66 #define	sc_if		sc_ethercom.ec_if
     67 
     68 	struct mc_rxframe	sc_rxframe;
     69 	u_int8_t	sc_biucc;
     70 	u_int8_t	sc_fifocc;
     71 	u_int8_t	sc_plscc;
     72 	u_int8_t	sc_enaddr[6];
     73 	u_int8_t	sc_pad[2];
     74 	int		sc_havecarrier; /* carrier status */
     75 	void		(*sc_bus_init) __P((struct mc_softc *));
     76 	void		(*sc_putpacket) __P((struct mc_softc *, u_int));
     77 
     78 	bus_space_tag_t		sc_regt;
     79 	bus_space_handle_t	sc_regh;
     80 
     81 	u_char		*sc_txbuf, *sc_rxbuf;
     82 	int		sc_txbuf_phys, sc_rxbuf_phys;
     83 	int		sc_tail;
     84 	int		sc_rxset;
     85 	int		sc_txset, sc_txseti;
     86 };
     87 
     88 int	mcsetup __P((struct mc_softc *, u_int8_t *));
     89 void	mcintr __P((void *arg));
     90 void	mc_rint __P((struct mc_softc *sc));
     91 u_char	mc_get_enaddr __P((bus_space_tag_t t, bus_space_handle_t h,
     92 	    vm_offset_t o, u_char *dst));
     93