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if_ne_pci.c revision 1.18
      1 /*	$NetBSD: if_ne_pci.c,v 1.18 2001/02/12 18:49:05 thorpej Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
      9  * NASA Ames Research Center.
     10  *
     11  * Redistribution and use in source and binary forms, with or without
     12  * modification, are permitted provided that the following conditions
     13  * are met:
     14  * 1. Redistributions of source code must retain the above copyright
     15  *    notice, this list of conditions and the following disclaimer.
     16  * 2. Redistributions in binary form must reproduce the above copyright
     17  *    notice, this list of conditions and the following disclaimer in the
     18  *    documentation and/or other materials provided with the distribution.
     19  * 3. All advertising materials mentioning features or use of this software
     20  *    must display the following acknowledgement:
     21  *	This product includes software developed by the NetBSD
     22  *	Foundation, Inc. and its contributors.
     23  * 4. Neither the name of The NetBSD Foundation nor the names of its
     24  *    contributors may be used to endorse or promote products derived
     25  *    from this software without specific prior written permission.
     26  *
     27  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     28  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     29  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     30  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     31  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     32  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     33  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     34  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     35  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     36  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     37  * POSSIBILITY OF SUCH DAMAGE.
     38  */
     39 
     40 #include "opt_ipkdb.h"
     41 #include "opt_inet.h"
     42 #include "bpfilter.h"
     43 
     44 #include <sys/param.h>
     45 #include <sys/systm.h>
     46 #include <sys/mbuf.h>
     47 #include <sys/syslog.h>
     48 #include <sys/socket.h>
     49 #include <sys/device.h>
     50 
     51 #include <net/if.h>
     52 #include <net/if_ether.h>
     53 #include <net/if_media.h>
     54 
     55 #ifdef INET
     56 #include <netinet/in.h>
     57 #include <netinet/if_inarp.h>
     58 #endif
     59 
     60 #include <machine/bus.h>
     61 #include <machine/intr.h>
     62 
     63 #ifdef IPKDB_NE_PCI
     64 #include <ipkdb/ipkdb.h>
     65 #endif
     66 
     67 #include <dev/pci/pcireg.h>
     68 #include <dev/pci/pcivar.h>
     69 #include <dev/pci/pcidevs.h>
     70 
     71 #include <dev/ic/dp8390reg.h>
     72 #include <dev/ic/dp8390var.h>
     73 
     74 #include <dev/ic/ne2000reg.h>
     75 #include <dev/ic/ne2000var.h>
     76 
     77 #include <dev/ic/rtl80x9reg.h>
     78 #include <dev/ic/rtl80x9var.h>
     79 
     80 struct ne_pci_softc {
     81 	struct ne2000_softc sc_ne2000;		/* real "ne2000" softc */
     82 
     83 	/* PCI-specific goo */
     84 	void *sc_ih;				/* interrupt handle */
     85 };
     86 
     87 int ne_pci_match __P((struct device *, struct cfdata *, void *));
     88 void ne_pci_attach __P((struct device *, struct device *, void *));
     89 
     90 struct cfattach ne_pci_ca = {
     91 	sizeof(struct ne_pci_softc), ne_pci_match, ne_pci_attach
     92 };
     93 
     94 #ifdef IPKDB_NE_PCI
     95 static struct ne_pci_softc ipkdb_softc;
     96 static pci_chipset_tag_t ipkdb_pc;
     97 static pcitag_t ipkdb_tag;
     98 static struct ipkdb_if *ne_kip;
     99 
    100 int ne_pci_ipkdb_attach __P((struct ipkdb_if *, bus_space_tag_t,       /* XXX */
    101 			pci_chipset_tag_t, int, int));
    102 
    103 static int ne_pci_isipkdb __P((pci_chipset_tag_t, pcitag_t));
    104 #endif
    105 
    106 const struct ne_pci_product {
    107 	pci_vendor_id_t npp_vendor;
    108 	pci_product_id_t npp_product;
    109 	int (*npp_mediachange) __P((struct dp8390_softc *));
    110 	void (*npp_mediastatus) __P((struct dp8390_softc *,
    111 	    struct ifmediareq *));
    112 	void (*npp_init_card) __P((struct dp8390_softc *));
    113 	void (*npp_media_init) __P((struct dp8390_softc *));
    114 	const char *npp_name;
    115 } ne_pci_products[] = {
    116 	{ PCI_VENDOR_REALTEK,		PCI_PRODUCT_REALTEK_RT8029,
    117 	  rtl80x9_mediachange,		rtl80x9_mediastatus,
    118 	  rtl80x9_init_card,		rtl80x9_media_init,
    119 	  "RealTek 8029" },
    120 
    121 	{ PCI_VENDOR_WINBOND,		PCI_PRODUCT_WINBOND_W89C940F,
    122 	  NULL,				NULL,
    123 	  NULL,				NULL,
    124 	  "Winbond 89C940F" },
    125 
    126 	{ PCI_VENDOR_WINBOND,		PCI_PRODUCT_WINBOND_W89C940F_1,
    127 	  NULL,				NULL,
    128 	  NULL,				NULL,
    129 	  "Winbond 89C940F" },
    130 
    131 	{ PCI_VENDOR_VIATECH,		PCI_PRODUCT_VIATECH_VT86C926,
    132 	  NULL,				NULL,
    133 	  NULL,				NULL,
    134 	  "VIA Technologies VT86C926" },
    135 
    136 	{ PCI_VENDOR_SURECOM,		PCI_PRODUCT_SURECOM_NE34,
    137 	  NULL,				NULL,
    138 	  NULL,				NULL,
    139 	  "Surecom NE-34" },
    140 
    141 	{ PCI_VENDOR_NETVIN,		PCI_PRODUCT_NETVIN_5000,
    142 	  NULL,				NULL,
    143 	  NULL,				NULL,
    144 	  "NetVin 5000" },
    145 
    146 	/* XXX The following entries need sanity checking in pcidevs */
    147 	{ PCI_VENDOR_COMPEX,		PCI_PRODUCT_COMPEX_NE2KETHER,
    148 	  NULL,				NULL,
    149 	  NULL,				NULL,
    150 	  "Compex" },
    151 
    152 	{ PCI_VENDOR_PROLAN,		PCI_PRODUCT_PROLAN_NE2KETHER,
    153 	  NULL,				NULL,
    154 	  NULL,				NULL,
    155 	  "ProLAN" },
    156 
    157 	{ PCI_VENDOR_KTI,		PCI_PRODUCT_KTI_NE2KETHER,
    158 	  NULL,				NULL,
    159 	  NULL,				NULL,
    160 	  "KTI" },
    161 
    162 	{ 0,				0,
    163 	  NULL,				NULL,
    164 	  NULL,				NULL,
    165 	  NULL },
    166 };
    167 
    168 const struct ne_pci_product *ne_pci_lookup
    169     __P((const struct pci_attach_args *));
    170 
    171 const struct ne_pci_product *
    172 ne_pci_lookup(pa)
    173 	const struct pci_attach_args *pa;
    174 {
    175 	const struct ne_pci_product *npp;
    176 
    177 	for (npp = ne_pci_products; npp->npp_name != NULL; npp++) {
    178 		if (PCI_VENDOR(pa->pa_id) == npp->npp_vendor &&
    179 		    PCI_PRODUCT(pa->pa_id) == npp->npp_product)
    180 			return (npp);
    181 	}
    182 	return (NULL);
    183 }
    184 
    185 /*
    186  * PCI constants.
    187  * XXX These should be in a common file!
    188  */
    189 #define PCI_CBIO	0x10		/* Configuration Base IO Address */
    190 
    191 int
    192 ne_pci_match(parent, match, aux)
    193 	struct device *parent;
    194 	struct cfdata *match;
    195 	void *aux;
    196 {
    197 	struct pci_attach_args *pa = aux;
    198 
    199 	if (ne_pci_lookup(pa) != NULL)
    200 		return (1);
    201 
    202 	return (0);
    203 }
    204 
    205 void
    206 ne_pci_attach(parent, self, aux)
    207 	struct device *parent, *self;
    208 	void *aux;
    209 {
    210 	struct ne_pci_softc *psc = (struct ne_pci_softc *)self;
    211 	struct ne2000_softc *nsc = &psc->sc_ne2000;
    212 	struct dp8390_softc *dsc = &nsc->sc_dp8390;
    213 	struct pci_attach_args *pa = aux;
    214 	pci_chipset_tag_t pc = pa->pa_pc;
    215 	bus_space_tag_t nict;
    216 	bus_space_handle_t nich;
    217 	bus_space_tag_t asict;
    218 	bus_space_handle_t asich;
    219 	const char *intrstr;
    220 	const struct ne_pci_product *npp;
    221 	pci_intr_handle_t ih;
    222 	pcireg_t csr;
    223 
    224 	npp = ne_pci_lookup(pa);
    225 	if (npp == NULL) {
    226 		printf("\n");
    227 		panic("ne_pci_attach: impossible");
    228 	}
    229 
    230 	printf(": %s Ethernet\n", npp->npp_name);
    231 
    232 #ifdef IPKDB_NE_PCI
    233 	if (ne_pci_isipkdb(pc, pa->pa_tag)) {
    234 		nict = ipkdb_softc.sc_ne2000.sc_dp8390.sc_regt;
    235 		nich = ipkdb_softc.sc_ne2000.sc_dp8390.sc_regh;
    236 		ne_kip->port = nsc;
    237 	} else
    238 #endif
    239 	if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0,
    240 	    &nict, &nich, NULL, NULL)) {
    241 		printf("%s: can't map i/o space\n", dsc->sc_dev.dv_xname);
    242 		return;
    243 	}
    244 
    245 	asict = nict;
    246 	if (bus_space_subregion(nict, nich, NE2000_ASIC_OFFSET,
    247 	    NE2000_ASIC_NPORTS, &asich)) {
    248 		printf("%s: can't subregion i/o space\n", dsc->sc_dev.dv_xname);
    249 		return;
    250 	}
    251 
    252 	dsc->sc_regt = nict;
    253 	dsc->sc_regh = nich;
    254 
    255 	nsc->sc_asict = asict;
    256 	nsc->sc_asich = asich;
    257 
    258 	/* Enable the card. */
    259 	csr = pci_conf_read(pc, pa->pa_tag,
    260 	    PCI_COMMAND_STATUS_REG);
    261 	pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
    262 	    csr | PCI_COMMAND_MASTER_ENABLE);
    263 
    264 	/* This interface is always enabled. */
    265 	dsc->sc_enabled = 1;
    266 
    267 	dsc->sc_mediachange = npp->npp_mediachange;
    268 	dsc->sc_mediastatus = npp->npp_mediastatus;
    269 	dsc->sc_media_init = npp->npp_media_init;
    270 	dsc->init_card = npp->npp_init_card;
    271 
    272 	/*
    273 	 * Do generic NE2000 attach.  This will read the station address
    274 	 * from the EEPROM.
    275 	 */
    276 	ne2000_attach(nsc, NULL);
    277 
    278 	/* Map and establish the interrupt. */
    279 	if (pci_intr_map(pa, &ih)) {
    280 		printf("%s: couldn't map interrupt\n", dsc->sc_dev.dv_xname);
    281 		return;
    282 	}
    283 	intrstr = pci_intr_string(pc, ih);
    284 	psc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, dp8390_intr, dsc);
    285 	if (psc->sc_ih == NULL) {
    286 		printf("%s: couldn't establish interrupt",
    287 		    dsc->sc_dev.dv_xname);
    288 		if (intrstr != NULL)
    289 			printf(" at %s", intrstr);
    290 		printf("\n");
    291 		return;
    292 	}
    293 	printf("%s: interrupting at %s\n", dsc->sc_dev.dv_xname, intrstr);
    294 }
    295 
    296 #ifdef IPKDB_NE_PCI
    297 static int
    298 ne_pci_isipkdb(pc, tag)
    299 	pci_chipset_tag_t pc;
    300 	pcitag_t tag;
    301 {
    302 	return !memcmp(&pc, &ipkdb_pc, sizeof pc)
    303 		&& !memcmp(&tag, &ipkdb_tag, sizeof tag);
    304 }
    305 
    306 int
    307 ne_pci_ipkdb_attach(kip, iot, pc, bus, dev)
    308 	struct ipkdb_if *kip;
    309 	bus_space_tag_t iot;
    310 	pci_chipset_tag_t pc;
    311 	int bus, dev;
    312 {
    313 	struct pci_attach_args pa;
    314 	bus_space_tag_t nict, asict;
    315 	bus_space_handle_t nich, asich;
    316 	u_int32_t csr;
    317 
    318 	pa.pa_iot = iot;
    319 	pa.pa_pc = pc;
    320 	pa.pa_device = dev;
    321 	pa.pa_function = 0;
    322 	pa.pa_flags = PCI_FLAGS_IO_ENABLED;
    323 	pa.pa_tag = pci_make_tag(pc, bus, dev, /*func*/0);
    324 	pa.pa_id = pci_conf_read(pc, pa.pa_tag, PCI_ID_REG);
    325 	pa.pa_class = pci_conf_read(pc, pa.pa_tag, PCI_CLASS_REG);
    326 	if (ne_pci_lookup(&pa) == NULL)
    327 		return -1;
    328 
    329 	if (pci_mapreg_map(&pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0,
    330 			&nict, &nich, NULL, NULL))
    331 		return -1;
    332 
    333 	asict = nict;
    334 	if (bus_space_subregion(nict, nich, NE2000_ASIC_OFFSET,
    335 				NE2000_ASIC_NPORTS, &asich)) {
    336 		bus_space_unmap(nict, nich, NE2000_NPORTS);
    337 		return -1;
    338 	}
    339 
    340 	/* Enable card */
    341 	csr = pci_conf_read(pc, pa.pa_tag, PCI_COMMAND_STATUS_REG);
    342 	pci_conf_write(pc, pa.pa_tag, PCI_COMMAND_STATUS_REG,
    343 			csr | PCI_COMMAND_MASTER_ENABLE);
    344 
    345 	ipkdb_softc.sc_ne2000.sc_dp8390.sc_regt = nict;
    346 	ipkdb_softc.sc_ne2000.sc_dp8390.sc_regh = nich;
    347 	ipkdb_softc.sc_ne2000.sc_asict = asict;
    348 	ipkdb_softc.sc_ne2000.sc_asich = asich;
    349 
    350 	kip->port = &ipkdb_softc;
    351 	ipkdb_pc = pc;
    352 	ipkdb_tag = pa.pa_tag;
    353 	ne_kip = kip;
    354 
    355 	if (ne2000_ipkdb_attach(kip) < 0) {
    356 		bus_space_unmap(nict, nich, NE2000_NPORTS);
    357 		return -1;
    358 	}
    359 
    360 	return 0;
    361 }
    362 #endif
    363