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if_ep_pci.c revision 1.34
      1 /*	$NetBSD: if_ep_pci.c,v 1.34 2001/06/12 22:28:15 thorpej Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 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 /*
     41  * Copyright (c) 1997 Jonathan Stone <jonathan (at) NetBSD.org>
     42  * Copyright (c) 1994 Herb Peyerl <hpeyerl (at) beer.org>
     43  * All rights reserved.
     44  *
     45  * Redistribution and use in source and binary forms, with or without
     46  * modification, are permitted provided that the following conditions
     47  * are met:
     48  * 1. Redistributions of source code must retain the above copyright
     49  *    notice, this list of conditions and the following disclaimer.
     50  * 2. Redistributions in binary form must reproduce the above copyright
     51  *    notice, this list of conditions and the following disclaimer in the
     52  *    documentation and/or other materials provided with the distribution.
     53  * 3. All advertising materials mentioning features or use of this software
     54  *    must display the following acknowledgement:
     55  *      This product includes software developed by Herb Peyerl.
     56  * 4. The name of Herb Peyerl may not be used to endorse or promote products
     57  *    derived from this software without specific prior written permission.
     58  *
     59  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     60  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     61  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     62  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     63  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     64  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     65  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     66  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     67  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     68  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     69  */
     70 
     71 #include "bpfilter.h"
     72 
     73 #include <sys/param.h>
     74 #include <sys/systm.h>
     75 #include <sys/mbuf.h>
     76 #include <sys/socket.h>
     77 #include <sys/ioctl.h>
     78 #include <sys/errno.h>
     79 #include <sys/syslog.h>
     80 #include <sys/select.h>
     81 #include <sys/device.h>
     82 
     83 #include <net/if.h>
     84 #include <net/if_dl.h>
     85 #include <net/if_ether.h>
     86 #include <net/if_media.h>
     87 
     88 #if NBPFILTER > 0
     89 #include <net/bpf.h>
     90 #include <net/bpfdesc.h>
     91 #endif
     92 
     93 #include <machine/cpu.h>
     94 #include <machine/bus.h>
     95 #include <machine/intr.h>
     96 
     97 #include <dev/mii/miivar.h>
     98 
     99 #include <dev/ic/elink3var.h>
    100 #include <dev/ic/elink3reg.h>
    101 
    102 #include <dev/pci/pcivar.h>
    103 #include <dev/pci/pcireg.h>
    104 #include <dev/pci/pcidevs.h>
    105 
    106 /*
    107  * PCI constants.
    108  */
    109 #define PCI_CBIO		0x10    /* Configuration Base IO Address */
    110 
    111 int ep_pci_match __P((struct device *, struct cfdata *, void *));
    112 void ep_pci_attach __P((struct device *, struct device *, void *));
    113 
    114 struct cfattach ep_pci_ca = {
    115 	sizeof(struct ep_softc), ep_pci_match, ep_pci_attach
    116 };
    117 
    118 struct ep_pci_product {
    119 	u_int32_t	epp_prodid;	/* PCI product ID */
    120 	u_short		epp_chipset;	/* 3Com chipset used */
    121 	int		epp_flags;	/* initial softc flags */
    122 	const char	*epp_name;	/* device name */
    123 } ep_pci_products[] = {
    124 	{ PCI_PRODUCT_3COM_3C590,	ELINK_CHIPSET_VORTEX,
    125 	  0,
    126 	  "3c590 Ethernet" },
    127 
    128 	/*
    129 	 * Note: The 3c595-MII is an MII connector for an
    130 	 * external PHY.  We treat it as `manual' in the
    131 	 * core driver.
    132 	 */
    133 	{ PCI_PRODUCT_3COM_3C595TX,	ELINK_CHIPSET_VORTEX,
    134 	  0,
    135 	  "3c595-TX 10/100 Ethernet" },
    136 	{ PCI_PRODUCT_3COM_3C595T4,	ELINK_CHIPSET_VORTEX,
    137 	  0,
    138 	  "3c595-T4 10/100 Ethernet" },
    139 	{ PCI_PRODUCT_3COM_3C595MII,	ELINK_CHIPSET_VORTEX,
    140 	  0,
    141 	  "3c595-MII 10/100 Ethernet" },
    142 
    143 	{ PCI_PRODUCT_3COM_3C900TPO,	ELINK_CHIPSET_BOOMERANG,
    144 	  0,
    145 	  "3c900-TPO Ethernet" },
    146 	{ PCI_PRODUCT_3COM_3C900COMBO,	ELINK_CHIPSET_BOOMERANG,
    147 	  0,
    148 	  "3c900-COMBO Ethernet" },
    149 
    150 	{ PCI_PRODUCT_3COM_3C905TX,	ELINK_CHIPSET_BOOMERANG,
    151 	  ELINK_FLAGS_MII,
    152 	  "3c905-TX 10/100 Ethernet" },
    153 	{ PCI_PRODUCT_3COM_3C905T4,	ELINK_CHIPSET_BOOMERANG,
    154 	  ELINK_FLAGS_MII,
    155 	  "3c905-T4 10/100 Ethernet" },
    156 
    157 	{ 0,				0,
    158 	  0,				NULL },
    159 };
    160 
    161 const struct ep_pci_product *ep_pci_lookup
    162     __P((const struct pci_attach_args *));
    163 
    164 const struct ep_pci_product *
    165 ep_pci_lookup(pa)
    166 	const struct pci_attach_args *pa;
    167 {
    168 	struct ep_pci_product *epp;
    169 
    170 	if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_3COM)
    171 		return (NULL);
    172 
    173 	for (epp = ep_pci_products; epp->epp_name != NULL; epp++)
    174 		if (PCI_PRODUCT(pa->pa_id) == epp->epp_prodid)
    175 			return (epp);
    176 
    177 	return (NULL);
    178 }
    179 
    180 int
    181 ep_pci_match(parent, match, aux)
    182 	struct device *parent;
    183 	struct cfdata *match;
    184 	void *aux;
    185 {
    186 	struct pci_attach_args *pa = (struct pci_attach_args *) aux;
    187 
    188 	if (ep_pci_lookup(pa) != NULL)
    189 		return (1);
    190 
    191 	return (0);
    192 }
    193 
    194 void
    195 ep_pci_attach(parent, self, aux)
    196 	struct device *parent, *self;
    197 	void *aux;
    198 {
    199 	struct ep_softc *sc = (void *)self;
    200 	struct pci_attach_args *pa = aux;
    201 	pci_chipset_tag_t pc = pa->pa_pc;
    202 	pci_intr_handle_t ih;
    203 	const struct ep_pci_product *epp;
    204 	const char *intrstr = NULL;
    205 
    206 	if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0,
    207 	    &sc->sc_iot, &sc->sc_ioh, NULL, NULL)) {
    208 		printf(": can't map i/o space\n");
    209 		return;
    210 	}
    211 
    212 	epp = ep_pci_lookup(pa);
    213 	if (epp == NULL) {
    214 		printf("\n");
    215 		panic("ep_pci_attach: impossible");
    216 	}
    217 
    218 	printf(": 3Com %s\n", epp->epp_name);
    219 
    220 	sc->enable = NULL;
    221 	sc->disable = NULL;
    222 	sc->enabled = 1;
    223 
    224 	sc->bustype = ELINK_BUS_PCI;
    225 	sc->ep_flags = epp->epp_flags;
    226 
    227 	/* Enable the card. */
    228 	pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
    229 	    pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG) |
    230 	    PCI_COMMAND_MASTER_ENABLE);
    231 
    232 	/* Map and establish the interrupt. */
    233 	if (pci_intr_map(pa, &ih)) {
    234 		printf("%s: couldn't map interrupt\n", sc->sc_dev.dv_xname);
    235 		return;
    236 	}
    237 	intrstr = pci_intr_string(pc, ih);
    238 	sc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, epintr, sc);
    239 	if (sc->sc_ih == NULL) {
    240 		printf("%s: couldn't establish interrupt",
    241 		    sc->sc_dev.dv_xname);
    242 		if (intrstr != NULL)
    243 			printf(" at %s", intrstr);
    244 		printf("\n");
    245 		return;
    246 	}
    247 	printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr);
    248 
    249 	epconfig(sc, epp->epp_chipset, NULL);
    250 }
    251