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if_ep_pci.c revision 1.10
      1 /*	$NetBSD: if_ep_pci.c,v 1.10 1996/10/13 01:38:21 christos Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1994 Herb Peyerl <hpeyerl (at) beer.org>
      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 Herb Peyerl.
     18  * 4. The name of Herb Peyerl 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 "bpfilter.h"
     34 
     35 #include <sys/param.h>
     36 #include <sys/systm.h>
     37 #include <sys/mbuf.h>
     38 #include <sys/socket.h>
     39 #include <sys/ioctl.h>
     40 #include <sys/errno.h>
     41 #include <sys/syslog.h>
     42 #include <sys/select.h>
     43 #include <sys/device.h>
     44 
     45 #include <net/if.h>
     46 #include <net/if_dl.h>
     47 #include <net/if_types.h>
     48 
     49 #ifdef INET
     50 #include <netinet/in.h>
     51 #include <netinet/in_systm.h>
     52 #include <netinet/in_var.h>
     53 #include <netinet/ip.h>
     54 #include <netinet/if_ether.h>
     55 #endif
     56 
     57 #ifdef NS
     58 #include <netns/ns.h>
     59 #include <netns/ns_if.h>
     60 #endif
     61 
     62 #if NBPFILTER > 0
     63 #include <net/bpf.h>
     64 #include <net/bpfdesc.h>
     65 #endif
     66 
     67 #include <machine/cpu.h>
     68 #include <machine/bus.h>
     69 #include <machine/intr.h>
     70 
     71 #include <dev/ic/elink3var.h>
     72 #include <dev/ic/elink3reg.h>
     73 
     74 #include <dev/pci/pcivar.h>
     75 #include <dev/pci/pcireg.h>
     76 #include <dev/pci/pcidevs.h>
     77 
     78 /*
     79  * PCI constants.
     80  * XXX These should be in a common file!
     81  */
     82 #define PCI_CONN		0x48    /* Connector type */
     83 #define PCI_CBIO		0x10    /* Configuration Base IO Address */
     84 
     85 int ep_pci_match __P((struct device *, void *, void *));
     86 void ep_pci_attach __P((struct device *, struct device *, void *));
     87 
     88 struct cfattach ep_pci_ca = {
     89 	sizeof(struct ep_softc), ep_pci_match, ep_pci_attach
     90 };
     91 
     92 int
     93 ep_pci_match(parent, match, aux)
     94 	struct device *parent;
     95 	void *match, *aux;
     96 {
     97 	struct pci_attach_args *pa = (struct pci_attach_args *) aux;
     98 
     99 	if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_3COM)
    100 		return 0;
    101 
    102 	switch (PCI_PRODUCT(pa->pa_id)) {
    103 	case PCI_PRODUCT_3COM_3C590:
    104 	case PCI_PRODUCT_3COM_3C595:
    105 		break;
    106 	default:
    107 		return 0;
    108 	}
    109 
    110 	return 1;
    111 }
    112 
    113 void
    114 ep_pci_attach(parent, self, aux)
    115 	struct device *parent, *self;
    116 	void *aux;
    117 {
    118 	struct ep_softc *sc = (void *)self;
    119 	struct pci_attach_args *pa = aux;
    120 	pci_chipset_tag_t pc = pa->pa_pc;
    121 	bus_chipset_tag_t bc = pa->pa_bc;
    122 	bus_io_addr_t iobase;
    123 	bus_io_size_t iosize;
    124 	pci_intr_handle_t ih;
    125 	u_short conn = 0;
    126 	pcireg_t i;
    127 	char *model;
    128 	const char *intrstr = NULL;
    129 
    130 	if (pci_io_find(pc, pa->pa_tag, PCI_CBIO, &iobase, &iosize)) {
    131 		printf(": can't find i/o space\n");
    132 		return;
    133 	}
    134 
    135 	if (bus_io_map(bc, iobase, iosize, &sc->sc_ioh)) {
    136 		printf(": can't map i/o space\n");
    137 		return;
    138 	}
    139 
    140 	sc->sc_bc = bc;
    141 	sc->bustype = EP_BUS_PCI;
    142 
    143 	i = pci_conf_read(pc, pa->pa_tag, PCI_CONN);
    144 
    145 	/*
    146 	 * Bits 13,12,9 of the isa adapter are the same as bits
    147 	 * 5,4,3 of the pci adapter
    148 	 */
    149 	if (i & IS_PCI_AUI)
    150 		conn |= IS_AUI;
    151 	if (i & IS_PCI_BNC)
    152 		conn |= IS_BNC;
    153 	if (i & IS_PCI_UTP)
    154 		conn |= IS_UTP;
    155 
    156 	GO_WINDOW(0);
    157 
    158 	switch (PCI_PRODUCT(pa->pa_id)) {
    159 	case PCI_PRODUCT_3COM_3C590:
    160 		model = "3Com 3C590 Ethernet";
    161 		break;
    162 
    163 	case PCI_PRODUCT_3COM_3C595:
    164 		model = "3Com 3C595 Ethernet";
    165 		break;
    166 	default:
    167 		model = "unknown model!";
    168 	}
    169 
    170 	printf(": %s\n", model);
    171 
    172 	epconfig(sc, conn);
    173 
    174 	/* Enable the card. */
    175 	pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
    176 	    pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG) |
    177 	    PCI_COMMAND_MASTER_ENABLE);
    178 
    179 	/* Map and establish the interrupt. */
    180 	if (pci_intr_map(pc, pa->pa_intrtag, pa->pa_intrpin,
    181 	    pa->pa_intrline, &ih)) {
    182 		printf("%s: couldn't map interrupt\n", sc->sc_dev.dv_xname);
    183 		return;
    184 	}
    185 	intrstr = pci_intr_string(pc, ih);
    186 	sc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, epintr, sc);
    187 	if (sc->sc_ih == NULL) {
    188 		printf("%s: couldn't establish interrupt",
    189 		    sc->sc_dev.dv_xname);
    190 		if (intrstr != NULL)
    191 			printf(" at %s", intrstr);
    192 		printf("\n");
    193 		return;
    194 	}
    195 	printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr);
    196 }
    197