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      1 /*	$NetBSD: if_ne_mainbus.c,v 1.1 2011/02/19 10:46:28 kiyohara Exp $	*/
      2 /*
      3  * Copyright (c) 2010 KIYOHARA Takashi
      4  * All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     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
     17  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     18  * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
     19  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     20  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
     21  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
     23  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
     24  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     25  * POSSIBILITY OF SUCH DAMAGE.
     26  *
     27  */
     28 #include <sys/cdefs.h>
     29 __KERNEL_RCSID(0, "$NetBSD: if_ne_mainbus.c,v 1.1 2011/02/19 10:46:28 kiyohara Exp $");
     30 
     31 #include <sys/param.h>
     32 #include <sys/bus.h>
     33 #include <sys/device.h>
     34 #include <sys/errno.h>
     35 
     36 #include <machine/autoconf.h>
     37 #include <machine/intr.h>
     38 #include <machine/mmeye.h>
     39 
     40 #include <net/if.h>
     41 #include <net/if_dl.h>
     42 #include <net/if_ether.h>
     43 #include <net/if_media.h>
     44 
     45 #include <dev/ic/dp8390reg.h>
     46 #include <dev/ic/dp8390var.h>
     47 
     48 #include <dev/ic/ne2000reg.h>
     49 #include <dev/ic/ne2000var.h>
     50 
     51 #include "locators.h"
     52 
     53 static int ne_mainbus_match(device_t, cfdata_t , void *);
     54 static void ne_mainbus_attach(device_t, device_t, void *);
     55 
     56 CFATTACH_DECL_NEW(ne_mainbus, sizeof(struct ne2000_softc),
     57     ne_mainbus_match, ne_mainbus_attach, NULL, NULL);
     58 
     59 static int
     60 ne_mainbus_match(device_t parent, cfdata_t match, void *aux)
     61 {
     62 	struct mainbus_attach_args *ma = aux;
     63 	bus_space_tag_t nict, asict;
     64 	bus_space_handle_t nich, asich;
     65 	int rv = 0;
     66 
     67 	if (strcmp(ma->ma_name, match->cf_name) != 0)
     68 		return 0;
     69 
     70 	/* Disallow wildcarded values. */
     71 	if (ma->ma_addr1 == MAINBUSCF_ADDR1_DEFAULT ||
     72 	    ma->ma_irq1 == MAINBUSCF_IRQ1_DEFAULT)
     73 		return 0;
     74 
     75 	/* Make sure this is a valid NE[12]000 i/o address. */
     76 	if ((ma->ma_addr1 & 0x1f) != 0)
     77 		return 0;
     78 
     79 	/* Map i/o space. */
     80 	nict = SH3_BUS_SPACE_PCMCIA_IO;
     81 	if (bus_space_map(nict, ma->ma_addr1, NE2000_NPORTS, 0, &nich))
     82 		return 0;
     83 
     84 	if (bus_space_subregion(nict, nich, NE2000_ASIC_OFFSET,
     85 	    NE2000_ASIC_NPORTS, &asich))
     86 		goto out;
     87 	asict = nict;
     88 
     89 	/* Look for an NE2000-compatible card. */
     90 	rv = ne2000_detect(nict, nich, asict, asich);
     91 
     92  out:
     93 	bus_space_unmap(nict, nich, NE2000_NPORTS);
     94 	return rv;
     95 }
     96 
     97 void
     98 ne_mainbus_attach(device_t parent, device_t self, void *aux)
     99 {
    100 	struct ne2000_softc *sc = device_private(self);
    101 	struct dp8390_softc *dsc = &sc->sc_dp8390;
    102 	struct mainbus_attach_args *ma = aux;
    103 	bus_space_tag_t nict, asict;
    104 	bus_space_handle_t nich, asich;
    105 	int netype;
    106 	const char *typestr;
    107 	void *ih;
    108 
    109 	dsc->sc_dev = self;
    110 	aprint_normal("\n");
    111 
    112 	/* Map i/o space. */
    113 	nict = SH3_BUS_SPACE_PCMCIA_IO;
    114 	if (bus_space_map(nict, ma->ma_addr1, NE2000_NPORTS, 0, &nich)) {
    115 		aprint_error_dev(self, "can't map i/o space\n");
    116 		return;
    117 	}
    118 
    119 	if (bus_space_subregion(nict, nich, NE2000_ASIC_OFFSET,
    120 	    NE2000_ASIC_NPORTS, &asich)) {
    121 		aprint_error_dev(self, "can't subregion i/o space\n");
    122 		return;
    123 	}
    124 	asict = nict;
    125 
    126 	dsc->sc_regt = nict;
    127 	dsc->sc_regh = nich;
    128 
    129 	sc->sc_asict = asict;
    130 	sc->sc_asich = asich;
    131 
    132 	/*
    133 	 * Detect it again, so we can print some information about the
    134 	 * interface.
    135 	 */
    136 	netype = ne2000_detect(nict, nich, asict, asich);
    137 	switch (netype) {
    138 	case NE2000_TYPE_RTL8019:
    139 		typestr = "NE2000 (RTL8019)";
    140 		break;
    141 
    142 	case NE2000_TYPE_NE1000:
    143 	case NE2000_TYPE_NE2000:
    144 	default:
    145 		aprint_error_dev(self, "where did the card go?!\n");
    146 		return;
    147 	}
    148 
    149 	aprint_normal_dev(self, "%s Ethernet\n", typestr);
    150 
    151 	/* This interface is always enabled. */
    152 	dsc->sc_enabled = 1;
    153 
    154 	/*
    155 	 * Do generic NE2000 attach.  This will read the station address
    156 	 * from the EEPROM.
    157 	 */
    158 	ne2000_attach(sc, NULL);
    159 
    160 	/* Establish the interrupt handler. */
    161 	ih = mmeye_intr_establish(ma->ma_irq1, IST_LEVEL, IPL_NET,
    162 	    dp8390_intr, dsc);
    163 	if (ih == NULL)
    164 		aprint_error_dev(self,
    165 		    "couldn't establish interrupt handler\n");
    166 }
    167