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if_ep_pci.c revision 1.35
      1 /*	$NetBSD: if_ep_pci.c,v 1.35 2001/07/08 18:02:28 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 <sys/param.h>
     72 #include <sys/systm.h>
     73 #include <sys/mbuf.h>
     74 #include <sys/socket.h>
     75 #include <sys/ioctl.h>
     76 #include <sys/errno.h>
     77 #include <sys/syslog.h>
     78 #include <sys/select.h>
     79 #include <sys/device.h>
     80 
     81 #include <net/if.h>
     82 #include <net/if_dl.h>
     83 #include <net/if_ether.h>
     84 #include <net/if_media.h>
     85 
     86 #include <machine/cpu.h>
     87 #include <machine/bus.h>
     88 #include <machine/intr.h>
     89 
     90 #include <dev/mii/miivar.h>
     91 
     92 #include <dev/ic/elink3var.h>
     93 #include <dev/ic/elink3reg.h>
     94 
     95 #include <dev/pci/pcivar.h>
     96 #include <dev/pci/pcireg.h>
     97 #include <dev/pci/pcidevs.h>
     98 
     99 /*
    100  * PCI constants.
    101  */
    102 #define PCI_CBIO		0x10    /* Configuration Base IO Address */
    103 
    104 int ep_pci_match __P((struct device *, struct cfdata *, void *));
    105 void ep_pci_attach __P((struct device *, struct device *, void *));
    106 
    107 struct cfattach ep_pci_ca = {
    108 	sizeof(struct ep_softc), ep_pci_match, ep_pci_attach
    109 };
    110 
    111 struct ep_pci_product {
    112 	u_int32_t	epp_prodid;	/* PCI product ID */
    113 	u_short		epp_chipset;	/* 3Com chipset used */
    114 	int		epp_flags;	/* initial softc flags */
    115 	const char	*epp_name;	/* device name */
    116 } ep_pci_products[] = {
    117 	{ PCI_PRODUCT_3COM_3C590,	ELINK_CHIPSET_VORTEX,
    118 	  0,
    119 	  "3c590 Ethernet" },
    120 
    121 	/*
    122 	 * Note: The 3c595-MII is an MII connector for an
    123 	 * external PHY.  We treat it as `manual' in the
    124 	 * core driver.
    125 	 */
    126 	{ PCI_PRODUCT_3COM_3C595TX,	ELINK_CHIPSET_VORTEX,
    127 	  0,
    128 	  "3c595-TX 10/100 Ethernet" },
    129 	{ PCI_PRODUCT_3COM_3C595T4,	ELINK_CHIPSET_VORTEX,
    130 	  0,
    131 	  "3c595-T4 10/100 Ethernet" },
    132 	{ PCI_PRODUCT_3COM_3C595MII,	ELINK_CHIPSET_VORTEX,
    133 	  0,
    134 	  "3c595-MII 10/100 Ethernet" },
    135 
    136 	{ PCI_PRODUCT_3COM_3C900TPO,	ELINK_CHIPSET_BOOMERANG,
    137 	  0,
    138 	  "3c900-TPO Ethernet" },
    139 	{ PCI_PRODUCT_3COM_3C900COMBO,	ELINK_CHIPSET_BOOMERANG,
    140 	  0,
    141 	  "3c900-COMBO Ethernet" },
    142 
    143 	{ PCI_PRODUCT_3COM_3C905TX,	ELINK_CHIPSET_BOOMERANG,
    144 	  ELINK_FLAGS_MII,
    145 	  "3c905-TX 10/100 Ethernet" },
    146 	{ PCI_PRODUCT_3COM_3C905T4,	ELINK_CHIPSET_BOOMERANG,
    147 	  ELINK_FLAGS_MII,
    148 	  "3c905-T4 10/100 Ethernet" },
    149 
    150 	{ 0,				0,
    151 	  0,				NULL },
    152 };
    153 
    154 const struct ep_pci_product *ep_pci_lookup
    155     __P((const struct pci_attach_args *));
    156 
    157 const struct ep_pci_product *
    158 ep_pci_lookup(pa)
    159 	const struct pci_attach_args *pa;
    160 {
    161 	struct ep_pci_product *epp;
    162 
    163 	if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_3COM)
    164 		return (NULL);
    165 
    166 	for (epp = ep_pci_products; epp->epp_name != NULL; epp++)
    167 		if (PCI_PRODUCT(pa->pa_id) == epp->epp_prodid)
    168 			return (epp);
    169 
    170 	return (NULL);
    171 }
    172 
    173 int
    174 ep_pci_match(parent, match, aux)
    175 	struct device *parent;
    176 	struct cfdata *match;
    177 	void *aux;
    178 {
    179 	struct pci_attach_args *pa = (struct pci_attach_args *) aux;
    180 
    181 	if (ep_pci_lookup(pa) != NULL)
    182 		return (1);
    183 
    184 	return (0);
    185 }
    186 
    187 void
    188 ep_pci_attach(parent, self, aux)
    189 	struct device *parent, *self;
    190 	void *aux;
    191 {
    192 	struct ep_softc *sc = (void *)self;
    193 	struct pci_attach_args *pa = aux;
    194 	pci_chipset_tag_t pc = pa->pa_pc;
    195 	pci_intr_handle_t ih;
    196 	const struct ep_pci_product *epp;
    197 	const char *intrstr = NULL;
    198 
    199 	if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0,
    200 	    &sc->sc_iot, &sc->sc_ioh, NULL, NULL)) {
    201 		printf(": can't map i/o space\n");
    202 		return;
    203 	}
    204 
    205 	epp = ep_pci_lookup(pa);
    206 	if (epp == NULL) {
    207 		printf("\n");
    208 		panic("ep_pci_attach: impossible");
    209 	}
    210 
    211 	printf(": 3Com %s\n", epp->epp_name);
    212 
    213 	sc->enable = NULL;
    214 	sc->disable = NULL;
    215 	sc->enabled = 1;
    216 
    217 	sc->bustype = ELINK_BUS_PCI;
    218 	sc->ep_flags = epp->epp_flags;
    219 
    220 	/* Enable the card. */
    221 	pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
    222 	    pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG) |
    223 	    PCI_COMMAND_MASTER_ENABLE);
    224 
    225 	/* Map and establish the interrupt. */
    226 	if (pci_intr_map(pa, &ih)) {
    227 		printf("%s: couldn't map interrupt\n", sc->sc_dev.dv_xname);
    228 		return;
    229 	}
    230 	intrstr = pci_intr_string(pc, ih);
    231 	sc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, epintr, sc);
    232 	if (sc->sc_ih == NULL) {
    233 		printf("%s: couldn't establish interrupt",
    234 		    sc->sc_dev.dv_xname);
    235 		if (intrstr != NULL)
    236 			printf(" at %s", intrstr);
    237 		printf("\n");
    238 		return;
    239 	}
    240 	printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr);
    241 
    242 	epconfig(sc, epp->epp_chipset, NULL);
    243 }
    244