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if_ne_xsh.c revision 1.4.6.2
      1 /*	$NetBSD: if_ne_xsh.c,v 1.4.6.2 2014/05/22 11:39:28 yamt Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2013 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Radoslaw Kujawa.
      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 
     34 /*
     35  * X-Surf 100 driver, ne(4) attachment.
     36  */
     37 
     38 #include <sys/param.h>
     39 #include <sys/device.h>
     40 #include <sys/malloc.h>
     41 #include <sys/mbuf.h>
     42 #include <sys/socket.h>
     43 #include <sys/syslog.h>
     44 #include <sys/systm.h>
     45 #include <sys/bus.h>
     46 
     47 #include <machine/cpu.h>
     48 
     49 #include <net/if.h>
     50 #include <net/if_media.h>
     51 #include <net/if_ether.h>
     52 
     53 #include <dev/ic/dp8390reg.h>
     54 #include <dev/ic/dp8390var.h>
     55 
     56 #include <dev/ic/ne2000reg.h>
     57 #include <dev/ic/ne2000var.h>
     58 
     59 #include <dev/ic/ax88190var.h>
     60 
     61 #include <amiga/amiga/device.h>
     62 #include <amiga/amiga/isr.h>
     63 
     64 #include <amiga/dev/xshvar.h>
     65 #include <amiga/dev/zbusvar.h>
     66 
     67 /* #define NE_XSH_DEBUG 1 */
     68 
     69 int	ne_xsh_match(device_t, cfdata_t , void *);
     70 void	ne_xsh_attach(device_t, device_t, void *);
     71 #ifdef NE_XSH_DEBUG
     72 void	ne_xsh_debug_mapping(bus_space_tag_t, bus_space_handle_t,
     73 	    bus_space_handle_t);
     74 #endif /* NE_XSH_DEBUG */
     75 
     76 struct ne_xsh_softc {
     77 	struct ne2000_softc	sc_ne2000;
     78 	struct bus_space_tag	sc_bst;
     79 	struct isr		sc_isr;
     80 };
     81 
     82 CFATTACH_DECL_NEW(ne_xsh, sizeof(struct ne_xsh_softc),
     83     ne_xsh_match, ne_xsh_attach, NULL, NULL);
     84 
     85 int
     86 ne_xsh_match(device_t parent, cfdata_t cf, void *aux)
     87 {
     88 	struct xshbus_attach_args *xap = aux;
     89 
     90 	if (strcmp(xap->xaa_name, "ne_xsh") != 0)
     91 		return 0;
     92 
     93 	return 1;
     94 }
     95 
     96 void
     97 ne_xsh_attach(device_t parent, device_t self, void *aux)
     98 {
     99 	struct ne_xsh_softc *zsc = device_private(self);
    100 	struct ne2000_softc *nsc = &zsc->sc_ne2000;
    101 	struct dp8390_softc *dsc = &nsc->sc_dp8390;
    102 
    103 	struct xshbus_attach_args *xap = aux;
    104 
    105 	bus_space_tag_t xsht;
    106 	bus_space_handle_t nich;
    107 	bus_space_handle_t asich;
    108 
    109 	dsc->sc_dev = self;
    110 
    111 	zsc->sc_bst.base = xap->xaa_base;
    112 	zsc->sc_bst.absm = &amiga_bus_stride_4;
    113 
    114 	aprint_normal("\n");
    115 
    116 	xsht = &zsc->sc_bst;
    117 
    118 	/* Map the NIC and ASIC spaces. */
    119 	if (bus_space_map(xsht, NE2000_NIC_OFFSET, NE2000_NPORTS, 0, &nich)) {
    120 		aprint_error_dev(self, "can't map nic i/o space\n");
    121 		return;
    122 	}
    123 	if (bus_space_subregion(xsht, nich, NE2000_ASIC_OFFSET,
    124 	    NE2000_ASIC_NPORTS, &asich)) {
    125 		aprint_error_dev(self, "can't map asic i/o space\n");
    126 		return;
    127 	}
    128 
    129 #ifdef NE_XSH_DEBUG
    130 	ne_xsh_debug_mapping(xsht, nich, asich);
    131 #endif /* NE_XSH_DEBUG */
    132 
    133 	dsc->sc_regt = xsht;
    134 	dsc->sc_regh = nich;
    135 
    136 	nsc->sc_asict = xsht;
    137 	nsc->sc_asich = asich;
    138 
    139 	/* This interface is always enabled. */
    140 	dsc->sc_enabled = 1;
    141 
    142 	nsc->sc_type = NE2000_TYPE_AX88796;
    143 
    144 	dsc->sc_mediachange = ax88190_mediachange;
    145 	dsc->sc_mediastatus = ax88190_mediastatus;
    146 	dsc->init_card = ax88190_init_card;
    147 	dsc->stop_card = ax88190_stop_card;
    148 	dsc->sc_media_init = ax88190_media_init;
    149 	dsc->sc_media_fini = ax88190_media_fini;
    150 
    151 	/*
    152 	 * Do generic NE2000 attach.  This will read the station address
    153 	 * from the EEPROM.
    154 	 */
    155 	ne2000_attach(nsc, NULL);
    156 
    157 	zsc->sc_isr.isr_intr = dp8390_intr;
    158 	zsc->sc_isr.isr_arg = dsc;
    159 	zsc->sc_isr.isr_ipl = 2;
    160 	add_isr(&zsc->sc_isr);
    161 }
    162 
    163 #ifdef NE_XSH_DEBUG
    164 void
    165 ne_xsh_debug_mapping(bus_space_tag_t xsht, bus_space_handle_t nich,
    166     bus_space_handle_t asich)
    167 {
    168 	bus_addr_t va;
    169 	int i;
    170 
    171 	aprint_normal("xsh: NIC mapping: ");
    172 	for(va = nich, i = 0; i < NE2000_NIC_NPORTS; i++) {
    173 		aprint_normal("%x:%x ", i, kvtop((void*) (va+i)));
    174 	}
    175 	aprint_normal("\n");
    176 
    177 	aprint_normal("xsh: ASIC mapping: ");
    178 	for(va = asich, i = 0; i < NE2000_ASIC_NPORTS; i++) {
    179 		aprint_normal("%x:%x ", i, kvtop((void*) (va+i)));
    180 	}
    181 	aprint_normal("\n");
    182 }
    183 #endif /* NE_XSH_DEBUG */
    184