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if_mcvar.h revision 1.5 
      1 /*	$NetBSD: if_mcvar.h,v 1.5 2001/07/11 22:11:29 briggs 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 #if defined(_KERNEL_OPT)
     29 #include "opt_ddb.h"
     30 #include "opt_kgdb.h"
     31 #endif
     32 
     33 #include <macppc/dev/dbdma.h>
     34 
     35 #if defined(DDB) || defined(KGDB)
     36 #define	integrate
     37 #define hide
     38 #else
     39 #define	integrate	static /*__inline*/
     40 #define hide		static
     41 #endif
     42 
     43 #define	MC_REGSPACING	16
     44 #define	MC_REGSIZE	MACE_NREGS * MC_REGSPACING
     45 #define	MACE_REG(x)	((x)*MC_REGSPACING)
     46 
     47 #define	NIC_GET(sc, reg)	(bus_space_read_1((sc)->sc_regt,	\
     48 				    (sc)->sc_regh, MACE_REG(reg)))
     49 #define	NIC_PUT(sc, reg, val)	(bus_space_write_1((sc)->sc_regt,	\
     50 				    (sc)->sc_regh, MACE_REG(reg), (val)))
     51 
     52 #ifndef	MC_RXDMABUFS
     53 #define	MC_RXDMABUFS	4
     54 #endif
     55 #if (MC_RXDMABUFS < 2)
     56 #error Must have at least two buffers for DMA!
     57 #endif
     58 
     59 #define	MC_NPAGES	((MC_RXDMABUFS * 0x800 + NBPG - 1) / NBPG)
     60 
     61 struct mc_rxframe {
     62 	u_int8_t	rx_rcvcnt;
     63 	u_int8_t	rx_rcvsts;
     64 	u_int8_t	rx_rntpc;
     65 	u_int8_t	rx_rcvcc;
     66 	u_char		*rx_frame;
     67 };
     68 
     69 struct mc_softc {
     70 	struct device	sc_dev;		/* base device glue */
     71 	struct ethercom	sc_ethercom;	/* Ethernet common part */
     72 #define	sc_if		sc_ethercom.ec_if
     73 	struct ifmedia	sc_media;
     74 
     75 	struct mc_rxframe	sc_rxframe;
     76 	u_int8_t	sc_biucc;
     77 	u_int8_t	sc_fifocc;
     78 	u_int8_t	sc_plscc;
     79 	u_int8_t	sc_enaddr[6];
     80 	u_int8_t	sc_pad[2];
     81 	int		sc_havecarrier; /* carrier status */
     82 	void		(*sc_bus_init) __P((struct mc_softc *));
     83 	void		(*sc_putpacket) __P((struct mc_softc *, u_int));
     84 	int		(*sc_mediachange) __P((struct mc_softc *));
     85 	void		(*sc_mediastatus) __P((struct mc_softc *,
     86 				struct ifmediareq *));
     87 
     88 	bus_space_tag_t	sc_regt;
     89 	bus_space_handle_t sc_regh;
     90 
     91 	u_char		*sc_txbuf, *sc_rxbuf;
     92 	int		sc_txbuf_phys, sc_rxbuf_phys;
     93 	int		sc_tail;
     94 
     95 	int		sc_node;
     96 	dbdma_regmap_t	*sc_txdma;
     97 	dbdma_command_t	*sc_txdmacmd;
     98 	dbdma_regmap_t	*sc_rxdma;
     99 	dbdma_command_t	*sc_rxdmacmd;
    100 };
    101 
    102 int	mcsetup __P((struct mc_softc *, u_int8_t *));
    103 int	mcintr __P((void *arg));
    104 void	mc_rint __P((struct mc_softc *sc));
    105