sys/arch/mac68k/dev/if_mcvar.h

   1 /*      $NetBSD: if_mcvar.h,v 1.14 2007/03/05 21:16:58 he Exp $ */
   2
   3 /*-
   4  * Copyright (c) 1997 David Huang <khym@azeotrope.org>
   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 /* XXX this file depends on opt_ddb.h */
  29 #ifdef DDB
  30 #define integrate
  31 #define hide
  32 #else
  33 #define integrate       static inline
  34 #define hide            static
  35 #endif
  36
  37 #define MC_REGSPACING   16
  38 #define MC_REGSIZE      MACE_NREGS * MC_REGSPACING
  39 #define MACE_REG(x)     ((x)*MC_REGSPACING)
  40
  41 #define NIC_GET(sc, reg)        (bus_space_read_1((sc)->sc_regt,        \
  42                                     (sc)->sc_regh, MACE_REG(reg)))
  43
  44 #define NIC_PUT(sc, reg, val)   (bus_space_write_1((sc)->sc_regt,       \
  45                                     (sc)->sc_regh, MACE_REG(reg), (val)))
  46
  47 #ifndef MC_RXDMABUFS
  48 #define MC_RXDMABUFS    4
  49 #endif
  50 #if (MC_RXDMABUFS < 2)
  51 #error Must have at least two buffers for DMA!
  52 #endif
  53
  54 #define MC_NPAGES       ((MC_RXDMABUFS * 0x800 + PAGE_SIZE - 1) / PAGE_SIZE)
  55
  56 struct mc_rxframe {
  57         u_int8_t        rx_rcvcnt;
  58         u_int8_t        rx_rcvsts;
  59         u_int8_t        rx_rntpc;
  60         u_int8_t        rx_rcvcc;
  61         u_char          *rx_frame;
  62 };
  63
  64 struct mc_softc {
  65         struct device   sc_dev;         /* base device glue */
  66         struct ethercom sc_ethercom;    /* Ethernet common part */
  67 #define sc_if           sc_ethercom.ec_if
  68
  69         struct mc_rxframe       sc_rxframe;
  70         u_int8_t        sc_biucc;
  71         u_int8_t        sc_fifocc;
  72         u_int8_t        sc_plscc;
  73         u_int8_t        sc_enaddr[6];
  74         u_int8_t        sc_pad[2];
  75         int             sc_havecarrier; /* carrier status */
  76         void            (*sc_bus_init)(struct mc_softc *);
  77         void            (*sc_putpacket)(struct mc_softc *, u_int);
  78
  79         bus_space_tag_t         sc_regt;
  80         bus_space_handle_t      sc_regh;
  81         bus_dma_tag_t   sc_dmat;
  82         bus_dmamap_t    sc_dmam_tx, sc_dmam_rx;
  83         bus_dma_segment_t       sc_dmasegs_tx, sc_dmasegs_rx;
  84
  85         uint8_t         *sc_txbuf, *sc_rxbuf;
  86         bus_addr_t      sc_txbuf_phys, sc_rxbuf_phys;
  87         int             sc_tail;
  88         int             sc_rxset;
  89         int             sc_txset, sc_txseti;
  90 };
  91
  92 int     mcsetup(struct mc_softc *, u_int8_t *);
  93 void    mcintr(void *arg);
  94 void    mc_rint(struct mc_softc *);
  95 u_char  mc_get_enaddr(bus_space_tag_t, bus_space_handle_t, bus_size_t,
  96                       u_char *);