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if_ne_pci.c revision 1.14.10.1
      1 /*	$NetBSD: if_ne_pci.c,v 1.14.10.1 2000/11/20 11:42:23 bouyer 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_init_media) __P((struct dp8390_softc *, int **,
    114 	    int *, int *));
    115 	const char *npp_name;
    116 } ne_pci_products[] = {
    117 	{ PCI_VENDOR_REALTEK,		PCI_PRODUCT_REALTEK_RT8029,
    118 	  rtl80x9_mediachange,		rtl80x9_mediastatus,
    119 	  rtl80x9_init_card,		rtl80x9_init_media,
    120 	  "RealTek 8029" },
    121 
    122 	{ PCI_VENDOR_WINBOND,		PCI_PRODUCT_WINBOND_W89C940F,
    123 	  NULL,				NULL,
    124 	  NULL,				NULL,
    125 	  "Winbond 89C940F" },
    126 
    127 	{ PCI_VENDOR_WINBOND,		PCI_PRODUCT_WINBOND_W89C940F_1,
    128 	  NULL,				NULL,
    129 	  NULL,				NULL,
    130 	  "Winbond 89C940F" },
    131 
    132 	{ PCI_VENDOR_VIATECH,		PCI_PRODUCT_VIATECH_VT86C926,
    133 	  NULL,				NULL,
    134 	  NULL,				NULL,
    135 	  "VIA Technologies VT86C926" },
    136 
    137 	{ PCI_VENDOR_SURECOM,		PCI_PRODUCT_SURECOM_NE34,
    138 	  NULL,				NULL,
    139 	  NULL,				NULL,
    140 	  "Surecom NE-34" },
    141 
    142 	{ PCI_VENDOR_NETVIN,		PCI_PRODUCT_NETVIN_5000,
    143 	  NULL,				NULL,
    144 	  NULL,				NULL,
    145 	  "NetVin 5000" },
    146 
    147 	/* XXX The following entries need sanity checking in pcidevs */
    148 	{ PCI_VENDOR_COMPEX,		PCI_PRODUCT_COMPEX_NE2KETHER,
    149 	  NULL,				NULL,
    150 	  NULL,				NULL,
    151 	  "Compex" },
    152 
    153 	{ PCI_VENDOR_PROLAN,		PCI_PRODUCT_PROLAN_NE2KETHER,
    154 	  NULL,				NULL,
    155 	  NULL,				NULL,
    156 	  "ProLAN" },
    157 
    158 	{ PCI_VENDOR_KTI,		PCI_PRODUCT_KTI_NE2KETHER,
    159 	  NULL,				NULL,
    160 	  NULL,				NULL,
    161 	  "KTI" },
    162 
    163 	{ 0,				0,
    164 	  NULL,				NULL,
    165 	  NULL,				NULL,
    166 	  NULL },
    167 };
    168 
    169 const struct ne_pci_product *ne_pci_lookup
    170     __P((const struct pci_attach_args *));
    171 
    172 const struct ne_pci_product *
    173 ne_pci_lookup(pa)
    174 	const struct pci_attach_args *pa;
    175 {
    176 	const struct ne_pci_product *npp;
    177 
    178 	for (npp = ne_pci_products; npp->npp_name != NULL; npp++) {
    179 		if (PCI_VENDOR(pa->pa_id) == npp->npp_vendor &&
    180 		    PCI_PRODUCT(pa->pa_id) == npp->npp_product)
    181 			return (npp);
    182 	}
    183 	return (NULL);
    184 }
    185 
    186 /*
    187  * PCI constants.
    188  * XXX These should be in a common file!
    189  */
    190 #define PCI_CBIO	0x10		/* Configuration Base IO Address */
    191 
    192 int
    193 ne_pci_match(parent, match, aux)
    194 	struct device *parent;
    195 	struct cfdata *match;
    196 	void *aux;
    197 {
    198 	struct pci_attach_args *pa = aux;
    199 
    200 	if (ne_pci_lookup(pa) != NULL)
    201 		return (1);
    202 
    203 	return (0);
    204 }
    205 
    206 void
    207 ne_pci_attach(parent, self, aux)
    208 	struct device *parent, *self;
    209 	void *aux;
    210 {
    211 	struct ne_pci_softc *psc = (struct ne_pci_softc *)self;
    212 	struct ne2000_softc *nsc = &psc->sc_ne2000;
    213 	struct dp8390_softc *dsc = &nsc->sc_dp8390;
    214 	struct pci_attach_args *pa = aux;
    215 	pci_chipset_tag_t pc = pa->pa_pc;
    216 	bus_space_tag_t nict;
    217 	bus_space_handle_t nich;
    218 	bus_space_tag_t asict;
    219 	bus_space_handle_t asich;
    220 	const char *intrstr;
    221 	const struct ne_pci_product *npp;
    222 	pci_intr_handle_t ih;
    223 	pcireg_t csr;
    224 	int *media, nmedia, defmedia;
    225 
    226 	npp = ne_pci_lookup(pa);
    227 	if (npp == NULL) {
    228 		printf("\n");
    229 		panic("ne_pci_attach: impossible");
    230 	}
    231 
    232 	printf(": %s Ethernet\n", npp->npp_name);
    233 
    234 #ifdef IPKDB_NE_PCI
    235 	if (ne_pci_isipkdb(pc, pa->pa_tag)) {
    236 		nict = ipkdb_softc.sc_ne2000.sc_dp8390.sc_regt;
    237 		nich = ipkdb_softc.sc_ne2000.sc_dp8390.sc_regh;
    238 		ne_kip->port = nsc;
    239 	} else
    240 #endif
    241 	if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0,
    242 	    &nict, &nich, NULL, NULL)) {
    243 		printf("%s: can't map i/o space\n", dsc->sc_dev.dv_xname);
    244 		return;
    245 	}
    246 
    247 	asict = nict;
    248 	if (bus_space_subregion(nict, nich, NE2000_ASIC_OFFSET,
    249 	    NE2000_ASIC_NPORTS, &asich)) {
    250 		printf("%s: can't subregion i/o space\n", dsc->sc_dev.dv_xname);
    251 		return;
    252 	}
    253 
    254 	dsc->sc_regt = nict;
    255 	dsc->sc_regh = nich;
    256 
    257 	nsc->sc_asict = asict;
    258 	nsc->sc_asich = asich;
    259 
    260 	/* Enable the card. */
    261 	csr = pci_conf_read(pc, pa->pa_tag,
    262 	    PCI_COMMAND_STATUS_REG);
    263 	pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
    264 	    csr | PCI_COMMAND_MASTER_ENABLE);
    265 
    266 	/* This interface is always enabled. */
    267 	dsc->sc_enabled = 1;
    268 
    269 	if (npp->npp_init_media != NULL) {
    270 		(*npp->npp_init_media)(dsc, &media, &nmedia, &defmedia);
    271 		dsc->sc_mediachange = npp->npp_mediachange;
    272 		dsc->sc_mediastatus = npp->npp_mediastatus;
    273 	} else {
    274 		media = NULL;
    275 		nmedia = 0;
    276 		defmedia = 0;
    277 	}
    278 
    279 	/* Always fill in init_card; it might be used for non-media stuff. */
    280 	dsc->init_card = npp->npp_init_card;
    281 
    282 	/*
    283 	 * Do generic NE2000 attach.  This will read the station address
    284 	 * from the EEPROM.
    285 	 */
    286 	ne2000_attach(nsc, NULL, media, nmedia, defmedia);
    287 
    288 	/* Map and establish the interrupt. */
    289 	if (pci_intr_map(pc, pa->pa_intrtag, pa->pa_intrpin,
    290 	    pa->pa_intrline, &ih)) {
    291 		printf("%s: couldn't map interrupt\n", dsc->sc_dev.dv_xname);
    292 		return;
    293 	}
    294 	intrstr = pci_intr_string(pc, ih);
    295 	psc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, dp8390_intr, dsc);
    296 	if (psc->sc_ih == NULL) {
    297 		printf("%s: couldn't establish interrupt",
    298 		    dsc->sc_dev.dv_xname);
    299 		if (intrstr != NULL)
    300 			printf(" at %s", intrstr);
    301 		printf("\n");
    302 		return;
    303 	}
    304 	printf("%s: interrupting at %s\n", dsc->sc_dev.dv_xname, intrstr);
    305 }
    306 
    307 #ifdef IPKDB_NE_PCI
    308 static int
    309 ne_pci_isipkdb(pc, tag)
    310 	pci_chipset_tag_t pc;
    311 	pcitag_t tag;
    312 {
    313 	return !memcmp(&pc, &ipkdb_pc, sizeof pc)
    314 		&& !memcmp(&tag, &ipkdb_tag, sizeof tag);
    315 }
    316 
    317 int
    318 ne_pci_ipkdb_attach(kip, iot, pc, bus, dev)
    319 	struct ipkdb_if *kip;
    320 	bus_space_tag_t iot;
    321 	pci_chipset_tag_t pc;
    322 	int bus, dev;
    323 {
    324 	struct pci_attach_args pa;
    325 	bus_space_tag_t nict, asict;
    326 	bus_space_handle_t nich, asich;
    327 	u_int32_t csr;
    328 
    329 	pa.pa_iot = iot;
    330 	pa.pa_pc = pc;
    331 	pa.pa_device = dev;
    332 	pa.pa_function = 0;
    333 	pa.pa_flags = PCI_FLAGS_IO_ENABLED;
    334 	pa.pa_tag = pci_make_tag(pc, bus, dev, /*func*/0);
    335 	pa.pa_id = pci_conf_read(pc, pa.pa_tag, PCI_ID_REG);
    336 	pa.pa_class = pci_conf_read(pc, pa.pa_tag, PCI_CLASS_REG);
    337 	if (ne_pci_lookup(&pa) == NULL)
    338 		return -1;
    339 
    340 	if (pci_mapreg_map(&pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0,
    341 			&nict, &nich, NULL, NULL))
    342 		return -1;
    343 
    344 	asict = nict;
    345 	if (bus_space_subregion(nict, nich, NE2000_ASIC_OFFSET,
    346 				NE2000_ASIC_NPORTS, &asich)) {
    347 		bus_space_unmap(nict, nich, NE2000_NPORTS);
    348 		return -1;
    349 	}
    350 
    351 	/* Enable card */
    352 	csr = pci_conf_read(pc, pa.pa_tag, PCI_COMMAND_STATUS_REG);
    353 	pci_conf_write(pc, pa.pa_tag, PCI_COMMAND_STATUS_REG,
    354 			csr | PCI_COMMAND_MASTER_ENABLE);
    355 
    356 	ipkdb_softc.sc_ne2000.sc_dp8390.sc_regt = nict;
    357 	ipkdb_softc.sc_ne2000.sc_dp8390.sc_regh = nich;
    358 	ipkdb_softc.sc_ne2000.sc_asict = asict;
    359 	ipkdb_softc.sc_ne2000.sc_asich = asich;
    360 
    361 	kip->port = &ipkdb_softc;
    362 	ipkdb_pc = pc;
    363 	ipkdb_tag = pa.pa_tag;
    364 	ne_kip = kip;
    365 
    366 	if (ne2000_ipkdb_attach(kip) < 0) {
    367 		bus_space_unmap(nict, nich, NE2000_NPORTS);
    368 		return -1;
    369 	}
    370 
    371 	return 0;
    372 }
    373 #endif
    374