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      1 /*	$NetBSD: if_ne_zbus.c,v 1.17 2023/12/20 00:40:42 thorpej Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 1998 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Bernd Ernesti.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #include <sys/cdefs.h>
     33 __KERNEL_RCSID(0, "$NetBSD: if_ne_zbus.c,v 1.17 2023/12/20 00:40:42 thorpej Exp $");
     34 
     35 /*
     36  * Thanks to Village Tronic for giving me a card.
     37  * Bernd Ernesti
     38  */
     39 
     40 #include <sys/param.h>
     41 #include <sys/device.h>
     42 #include <sys/mbuf.h>
     43 #include <sys/socket.h>
     44 #include <sys/syslog.h>
     45 #include <sys/systm.h>
     46 #include <sys/bus.h>
     47 
     48 #include <net/if.h>
     49 #include <net/if_media.h>
     50 #include <net/if_ether.h>
     51 
     52 #include <dev/ic/dp8390reg.h>
     53 #include <dev/ic/dp8390var.h>
     54 
     55 #include <dev/ic/ne2000reg.h>
     56 #include <dev/ic/ne2000var.h>
     57 
     58 #include <dev/ic/rtl80x9reg.h>
     59 #include <dev/ic/rtl80x9var.h>
     60 
     61 #include <amiga/amiga/device.h>
     62 #include <amiga/amiga/isr.h>
     63 
     64 #include <amiga/dev/zbusvar.h>
     65 
     66 int	ne_zbus_match(device_t, cfdata_t , void *);
     67 void	ne_zbus_attach(device_t, device_t, void *);
     68 
     69 struct ne_zbus_softc {
     70 	struct ne2000_softc	sc_ne2000;
     71 	struct bus_space_tag	sc_bst;
     72 	struct isr		sc_isr;
     73 };
     74 
     75 CFATTACH_DECL_NEW(ne_zbus, sizeof(struct ne_zbus_softc),
     76     ne_zbus_match, ne_zbus_attach, NULL, NULL);
     77 
     78 /*
     79  * The Amiga address are shifted by one bit to the ISA-Bus, but
     80  * this is handled by the bus_space functions.
     81  */
     82 #define	NE_ARIADNE_II_NPORTS	0x20
     83 #define	NE_ARIADNE_II_NICBASE	0x0300	/* 0x0600 */
     84 #define	NE_ARIADNE_II_NICSIZE	0x10
     85 #define	NE_ARIADNE_II_ASICBASE	0x0310	/* 0x0620 */
     86 #define	NE_ARIADNE_II_ASICSIZE	0x10
     87 
     88 int
     89 ne_zbus_match(device_t parent, cfdata_t cf, void *aux)
     90 {
     91 	struct zbus_args *zap = aux;
     92 
     93 	/* Ariadne II ethernet card */
     94 	if (zap->manid == 2167 && zap->prodid == 202)
     95 		return (1);
     96 
     97 	return (0);
     98 }
     99 
    100 /*
    101  * Install interface into kernel networking data structures
    102  */
    103 void
    104 ne_zbus_attach(device_t parent, device_t self, void *aux)
    105 {
    106 	struct ne_zbus_softc *zsc = device_private(self);
    107 	struct ne2000_softc *nsc = &zsc->sc_ne2000;
    108 	struct dp8390_softc *dsc = &nsc->sc_dp8390;
    109 	struct zbus_args *zap = aux;
    110 	bus_space_tag_t nict = &zsc->sc_bst;
    111 	bus_space_handle_t nich;
    112 	bus_space_tag_t asict = nict;
    113 	bus_space_handle_t asich;
    114 
    115 	dsc->sc_dev = self;
    116 	dsc->sc_mediachange = rtl80x9_mediachange;
    117 	dsc->sc_mediastatus = rtl80x9_mediastatus;
    118 	dsc->init_card = rtl80x9_init_card;
    119 	dsc->sc_media_init = rtl80x9_media_init;
    120 
    121 	zsc->sc_bst.base = (u_long)zap->va + 0;
    122 
    123 	zsc->sc_bst.absm = &amiga_bus_stride_2;
    124 
    125 	aprint_normal("\n");
    126 
    127 	/* Map i/o space. */
    128 	if (bus_space_map(nict, NE_ARIADNE_II_NICBASE, NE_ARIADNE_II_NPORTS, 0, &nich)) {
    129 		aprint_error_dev(self, "can't map nic i/o space\n");
    130 		return;
    131 	}
    132 
    133 	if (bus_space_subregion(nict, nich, NE2000_ASIC_OFFSET, NE_ARIADNE_II_ASICSIZE,
    134 	    &asich)) {
    135 		aprint_error_dev(self, "can't map asic i/o space\n");
    136 		return;
    137 	}
    138 
    139 	dsc->sc_regt = nict;
    140 	dsc->sc_regh = nich;
    141 
    142 	nsc->sc_asict = asict;
    143 	nsc->sc_asich = asich;
    144 
    145 	/* This interface is always enabled. */
    146 	dsc->sc_enabled = 1;
    147 
    148 	/*
    149 	 * Do generic NE2000 attach.  This will read the station address
    150 	 * from the EEPROM.
    151 	 */
    152 	ne2000_attach(nsc, NULL);
    153 
    154 	zsc->sc_isr.isr_intr = dp8390_intr;
    155 	zsc->sc_isr.isr_arg = dsc;
    156 	zsc->sc_isr.isr_ipl = 2;
    157 	add_isr(&zsc->sc_isr);
    158 }
    159