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      1 /*	$NetBSD: if_sn_nubus.c,v 1.30 2021/02/20 09:36:30 rin Exp $	*/
      2 
      3 /*
      4  * Copyright (C) 1997 Allen Briggs
      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. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *      This product includes software developed by Allen Briggs
     18  * 4. The name of the author may not be used to endorse or promote products
     19  *    derived from this software without specific prior written permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     30  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     31  */
     32 
     33 #include <sys/cdefs.h>
     34 __KERNEL_RCSID(0, "$NetBSD: if_sn_nubus.c,v 1.30 2021/02/20 09:36:30 rin Exp $");
     35 
     36 #include <sys/param.h>
     37 #include <sys/systm.h>
     38 #include <sys/device.h>
     39 #include <sys/ioctl.h>
     40 
     41 #include <sys/rndsource.h>
     42 
     43 #include <net/if.h>
     44 #include <net/if_ether.h>
     45 
     46 #include <machine/bus.h>
     47 #include <machine/viareg.h>
     48 
     49 #include <dev/ic/dp83932reg.h>
     50 #include <dev/ic/dp83932var.h>
     51 
     52 #include <mac68k/nubus/nubus.h>
     53 #include <mac68k/dev/if_snvar.h>
     54 
     55 static int	sn_nubus_match(device_t, cfdata_t, void *);
     56 static void	sn_nubus_attach(device_t, device_t, void *);
     57 static int	sn_nb_card_vendor(bus_space_tag_t, bus_space_handle_t,
     58 		    struct nubus_attach_args *);
     59 
     60 CFATTACH_DECL_NEW(sn_nubus, sizeof(struct sonic_softc),
     61     sn_nubus_match, sn_nubus_attach, NULL, NULL);
     62 
     63 
     64 static int
     65 sn_nubus_match(device_t parent, cfdata_t cf, void *aux)
     66 {
     67 	struct nubus_attach_args *na = aux;
     68 	bus_space_handle_t bsh;
     69 	int rv;
     70 
     71 	if (bus_space_map(na->na_tag,
     72 	    NUBUS_SLOT2PA(na->slot), NBMEMSIZE, 0, &bsh))
     73 		return 0;
     74 
     75 	rv = 0;
     76 
     77 	if (na->category == NUBUS_CATEGORY_NETWORK &&
     78 	    na->type == NUBUS_TYPE_ETHERNET) {
     79 		switch (sn_nb_card_vendor(na->na_tag, bsh, na)) {
     80 		default:
     81 			break;
     82 
     83 		case SN_VENDOR_APPLE:
     84 		case SN_VENDOR_APPLE16:
     85 		case SN_VENDOR_ASANTELC:
     86 		case SN_VENDOR_DAYNA:
     87 			rv = 1;
     88 			break;
     89 		}
     90 	}
     91 
     92 	bus_space_unmap(na->na_tag, bsh, NBMEMSIZE);
     93 
     94 	return rv;
     95 }
     96 
     97 /*
     98  * Install interface into kernel networking data structures
     99  */
    100 static void
    101 sn_nubus_attach(device_t parent, device_t self, void *aux)
    102 {
    103 	struct sonic_softc *sc = device_private(self);
    104 	struct nubus_attach_args *na = aux;
    105 	int i, success, offset;
    106 	bus_space_tag_t	bst;
    107 	bus_space_handle_t bsh, tmp_bsh;
    108 	uint8_t myaddr[ETHER_ADDR_LEN];
    109 	const char *cardtype;
    110 
    111 	bst = na->na_tag;
    112 	if (bus_space_map(bst, NUBUS_SLOT2PA(na->slot), NBMEMSIZE, 0, &bsh)) {
    113 		aprint_error(": failed to map memory space.\n");
    114 		return;
    115 	}
    116 
    117 	sc->sc_dev = self;
    118 	sc->sc_st = bst;
    119 	sc->sc_dmat = na->na_dmat;
    120 
    121 	cardtype = nubus_get_card_name(bst, bsh, na->fmt);
    122 
    123 	success = 0;
    124 	offset = 0;
    125 
    126 	switch (sn_nb_card_vendor(bst, bsh, na)) {
    127 	case SN_VENDOR_DAYNA:
    128 		sc->sc_dcr = DCR_BMS | DCR_RFT1 | DCR_TFT0;
    129 		sc->sc_dcr2 = 0;
    130 		sc->sc_32bit = 1;	/* 32 bit card */
    131 
    132 		if (bus_space_subregion(bst, bsh,
    133 		    0x00180000, SONIC_NREGS * 4, &sc->sc_sh)) {
    134 			aprint_error(": failed to map register space.\n");
    135 			break;
    136 		}
    137 
    138 		if (bus_space_subregion(bst, bsh,
    139 		    0x00ffe004, ETHER_ADDR_LEN, &tmp_bsh)) {
    140 			aprint_error(": failed to map ROM space.\n");
    141 			break;
    142 		}
    143 
    144 		sn_get_enaddr(bst, tmp_bsh, 0, myaddr);
    145 
    146 		offset = 2;
    147 		success = 1;
    148 		break;
    149 
    150 	case SN_VENDOR_APPLE:
    151 		sc->sc_dcr = DCR_BMS | DCR_RFT1 | DCR_TFT0;
    152 		sc->sc_dcr2 = 0;
    153 		sc->sc_32bit = 1; /* 32 bit card */
    154 
    155 		if (bus_space_subregion(bst, bsh,
    156 		    0x0, SONIC_NREGS * 4, &sc->sc_sh)) {
    157 			aprint_error(": failed to map register space.\n");
    158 			break;
    159 		}
    160 
    161 		if (bus_space_subregion(bst, bsh,
    162 		    0x40000, ETHER_ADDR_LEN, &tmp_bsh)) {
    163 			aprint_error(": failed to map ROM space.\n");
    164 			break;
    165 		}
    166 
    167 		sn_get_enaddr(bst, tmp_bsh, 0, myaddr);
    168 
    169 		offset = 0;
    170 		success = 1;
    171 		break;
    172 
    173 	case SN_VENDOR_APPLE16:
    174 		sc->sc_dcr = DCR_EXBUS | DCR_BMS | DCR_PO1 |
    175 		    DCR_RFT1 | DCR_TFT0;
    176 		sc->sc_dcr2 = 0;
    177 		sc->sc_32bit = 0; /* 16 bit card */
    178 
    179 		if (bus_space_subregion(bst, bsh,
    180 		    0x0, SONIC_NREGS * 4, &sc->sc_sh)) {
    181 			aprint_error(": failed to map register space.\n");
    182 			break;
    183 		}
    184 
    185 		if (bus_space_subregion(bst, bsh,
    186 		    0x40000, ETHER_ADDR_LEN, &tmp_bsh)) {
    187 			aprint_error(": failed to map ROM space.\n");
    188 			break;
    189 		}
    190 
    191 		sn_get_enaddr(bst, tmp_bsh, 0, myaddr);
    192 
    193 		offset = 0;
    194 		success = 1;
    195 		break;
    196 
    197 	case SN_VENDOR_ASANTELC: /* Macintosh LC Ethernet Adapter */
    198 		sc->sc_dcr = DCR_BMS | DCR_PO1 | DCR_RFT1 | DCR_TFT0;
    199 		sc->sc_dcr2 = 0;
    200 		sc->sc_32bit = 0; /* 16 bit card */
    201 
    202 		if (bus_space_subregion(bst, bsh,
    203 		    0x0, SONIC_NREGS * 4, &sc->sc_sh)) {
    204 			aprint_error(": failed to map register space.\n");
    205 			break;
    206 		}
    207 
    208 		if (bus_space_subregion(bst, bsh,
    209 		    0x400000, ETHER_ADDR_LEN, &tmp_bsh)) {
    210 			aprint_error(": failed to map ROM space.\n");
    211 			break;
    212 		}
    213 
    214 		sn_get_enaddr(bst, tmp_bsh, 0, myaddr);
    215 
    216 		offset = 0;
    217 		success = 1;
    218 		break;
    219 
    220 	default:
    221 		/*
    222 		 * You can't actually get this default, the snmatch
    223 		 * will fail for unknown hardware. If you're adding support
    224 		 * for a new card, the following defaults are a
    225 		 * good starting point.
    226 		 */
    227 		sc->sc_dcr = DCR_SBUS | DCR_BMS | DCR_RFT1 | DCR_TFT0;
    228 		sc->sc_dcr2 = 0;
    229 		sc->sc_32bit = 1;
    230 		success = 0;
    231 		aprint_error(": unknown card: attachment incomplete.\n");
    232 	}
    233 
    234 	if (!success) {
    235 		bus_space_unmap(bst, bsh, NBMEMSIZE);
    236 		return;
    237 	}
    238 
    239 	/* Regs are addressed as words, big endian. */
    240 	for (i = 0; i < SONIC_NREGS; i++) {
    241 		sc->sc_regmap[i] = (bus_size_t)((i * 4) + offset);
    242 	}
    243 
    244 	sc->sc_bigendian = 1;
    245 
    246 	aprint_error(": %s\n", cardtype);
    247 
    248 	add_nubus_intr(na->slot, (void (*)(void *))sonic_intr, (void *)sc);
    249 
    250 	sonic_attach(sc, myaddr);
    251 
    252 	return;
    253 }
    254 
    255 static int
    256 sn_nb_card_vendor(bus_space_tag_t bst, bus_space_handle_t bsh,
    257     struct nubus_attach_args *na)
    258 {
    259 	int vendor = SN_VENDOR_UNKNOWN;
    260 
    261 	switch (na->drsw) {
    262 	case NUBUS_DRSW_3COM:
    263 		if (na->drhw == NUBUS_DRHW_APPLE_SNT)
    264 			vendor = SN_VENDOR_APPLE;
    265 		else if (na->drhw == NUBUS_DRHW_APPLE_SN)
    266 			vendor = SN_VENDOR_APPLE16;
    267 		break;
    268 	case NUBUS_DRSW_APPLE:
    269 		if (na->drhw == NUBUS_DRHW_ASANTE_LC)
    270 			vendor = SN_VENDOR_ASANTELC;
    271 		else
    272 			vendor = SN_VENDOR_APPLE;
    273 		break;
    274 	case NUBUS_DRSW_TECHWORKS:
    275 		vendor = SN_VENDOR_APPLE;
    276 		break;
    277 	case NUBUS_DRSW_GATOR:
    278 		if (na->drhw == NUBUS_DRHW_KINETICS &&
    279 		    strncmp(nubus_get_card_name(bst, bsh, na->fmt),
    280 		    "EtherPort", 9) != 0)
    281 			vendor = SN_VENDOR_DAYNA;
    282 		break;
    283 	case NUBUS_DRSW_DAYNA:
    284 		vendor = SN_VENDOR_DAYNA;
    285 		break;
    286 	}
    287 
    288 	return vendor;
    289 }
    290