851de295eb
pci_attach_args *" instead of from four separate parameters which in all cases were extracted from the same "struct pci_attach_args". This both simplifies the driver api, and allows for alternate PCI interrupt mapping schemes, such as one using the tables described in the Intel Multiprocessor Spec which describe interrupt wirings for devices behind pci-pci bridges based on the device's location rather the bridge's location. Tested on alpha and i386; welcome to 1.5Q
316 lines
8.8 KiB
C
316 lines
8.8 KiB
C
/* $NetBSD: if_ex_pci.c,v 1.15 2000/12/28 22:59:13 sommerfeld Exp $ */
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/*-
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* Copyright (c) 1998 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Frank van der Linden; Jason R. Thorpe of the Numerical Aerospace
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* Simulation Facility, NASA Ames Research Center.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "opt_inet.h"
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#include "opt_ns.h"
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#include "bpfilter.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/mbuf.h>
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#include <sys/socket.h>
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#include <sys/ioctl.h>
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#include <sys/errno.h>
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#include <sys/syslog.h>
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#include <sys/select.h>
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#include <sys/device.h>
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#include <net/if.h>
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#include <net/if_dl.h>
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#include <net/if_ether.h>
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#include <net/if_media.h>
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#ifdef INET
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#include <netinet/in.h>
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#include <netinet/in_systm.h>
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#include <netinet/in_var.h>
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#include <netinet/ip.h>
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#include <netinet/if_inarp.h>
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#endif
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#ifdef NS
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#include <netns/ns.h>
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#include <netns/ns_if.h>
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#endif
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#if NBPFILTER > 0
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#include <net/bpf.h>
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#include <net/bpfdesc.h>
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#endif
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#include <machine/cpu.h>
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#include <machine/bus.h>
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#include <machine/intr.h>
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#include <dev/mii/miivar.h>
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#include <dev/mii/mii.h>
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#include <dev/ic/elink3var.h>
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#include <dev/ic/elink3reg.h>
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#include <dev/ic/elinkxlreg.h>
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#include <dev/ic/elinkxlvar.h>
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#include <dev/pci/pcivar.h>
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#include <dev/pci/pcireg.h>
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#include <dev/pci/pcidevs.h>
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struct ex_pci_softc {
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struct ex_softc sc_ex;
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pci_chipset_tag_t sc_chiptag;
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pcitag_t sc_pcitag;
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};
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/*
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* PCI constants.
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* XXX These should be in a common file!
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*/
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#define PCI_CONN 0x48 /* Connector type */
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#define PCI_CBIO 0x10 /* Configuration Base IO Address */
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#define PCI_POWERCTL 0xe0
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#define PCI_FUNCMEM 0x18
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#define PCI_INTRACK 0x00008000
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int ex_pci_match __P((struct device *, struct cfdata *, void *));
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void ex_pci_attach __P((struct device *, struct device *, void *));
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void ex_pci_intr_ack __P((struct ex_softc *));
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struct cfattach ex_pci_ca = {
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sizeof(struct ex_pci_softc), ex_pci_match, ex_pci_attach
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};
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const struct ex_pci_product {
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u_int32_t epp_prodid; /* PCI product ID */
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int epp_flags; /* initial softc flags */
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const char *epp_name; /* device name */
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} ex_pci_products[] = {
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{ PCI_PRODUCT_3COM_3C900TPO, 0,
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"3c900-TPO Ethernet" },
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{ PCI_PRODUCT_3COM_3C900COMBO, 0,
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"3c900-COMBO Ethernet" },
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{ PCI_PRODUCT_3COM_3C905TX, EX_CONF_MII,
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"3c905-TX 10/100 Ethernet" },
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{ PCI_PRODUCT_3COM_3C905T4, EX_CONF_MII,
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"3c905-T4 10/100 Ethernet" },
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{ PCI_PRODUCT_3COM_3C900BTPO, EX_CONF_90XB,
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"3c900B-TPO Ethernet" },
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{ PCI_PRODUCT_3COM_3C900BCOMBO, EX_CONF_90XB,
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"3c900B-COMBO Ethernet" },
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{ PCI_PRODUCT_3COM_3C900BTPC, EX_CONF_90XB,
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"3c900B-TPC Ethernet" },
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{ PCI_PRODUCT_3COM_3C905BTX, EX_CONF_90XB|EX_CONF_MII|EX_CONF_INTPHY,
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"3c905B-TX 10/100 Ethernet" },
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{ PCI_PRODUCT_3COM_3C905BT4, EX_CONF_90XB|EX_CONF_MII,
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"3c905B-T4 10/100 Ethernet" },
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{ PCI_PRODUCT_3COM_3C905BCOMBO, EX_CONF_90XB/*|EX_CONF_MII|EX_CONF_INTPHY*/,
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"3c905B-COMBO 10/100 Ethernet" },
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{ PCI_PRODUCT_3COM_3C905BFX, EX_CONF_90XB,
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"3c905B-FX 10/100 Ethernet" },
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/* XXX Internal PHY? */
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{ PCI_PRODUCT_3COM_3C980SRV, EX_CONF_90XB,
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"3c980 Server Adapter 10/100 Ethernet" },
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{ PCI_PRODUCT_3COM_3C980CTXM, EX_CONF_90XB,
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"3c980C-TXM 10/100 Ethernet" },
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{ PCI_PRODUCT_3COM_3C905CTX, EX_CONF_90XB|EX_CONF_MII,
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"3c905C-TX 10/100 Ethernet with mngmt" },
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{ PCI_PRODUCT_3COM_3C450TX, EX_CONF_90XB,
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"3c450-TX 10/100 Ethernet" },
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{ PCI_PRODUCT_3COM_3CSOHO100TX, EX_CONF_90XB,
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"3cSOHO100-TX 10/100 Ethernet" },
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{ PCI_PRODUCT_3COM_3C555,
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EX_CONF_90XB | EX_CONF_MII | EX_CONF_EEPROM_OFF |
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EX_CONF_EEPROM_8BIT,
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"3c555 MiniPCI 10/100 Ethernet" },
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{ PCI_PRODUCT_3COM_3C556,
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EX_CONF_90XB | EX_CONF_MII | EX_CONF_EEPROM_OFF |
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EX_CONF_PCI_FUNCREG | EX_CONF_RESETHACK | EX_CONF_INV_LED_POLARITY |
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EX_CONF_PHY_POWER | EX_CONF_EEPROM_8BIT,
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"3c556 MiniPCI 10/100 Ethernet" },
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{ PCI_PRODUCT_3COM_3C556B,
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EX_CONF_90XB | EX_CONF_MII | EX_CONF_EEPROM_OFF |
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EX_CONF_PCI_FUNCREG | EX_CONF_RESETHACK | EX_CONF_INV_LED_POLARITY |
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EX_CONF_PHY_POWER,
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"3c556B MiniPCI 10/100 Ethernet" },
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{ 0, 0,
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NULL },
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};
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const struct ex_pci_product *ex_pci_lookup
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__P((const struct pci_attach_args *));
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const struct ex_pci_product *
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ex_pci_lookup(pa)
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const struct pci_attach_args *pa;
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{
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const struct ex_pci_product *epp;
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if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_3COM)
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return (NULL);
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for (epp = ex_pci_products; epp->epp_name != NULL; epp++)
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if (PCI_PRODUCT(pa->pa_id) == epp->epp_prodid)
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return (epp);
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return (NULL);
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}
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int
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ex_pci_match(parent, match, aux)
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struct device *parent;
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struct cfdata *match;
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void *aux;
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{
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struct pci_attach_args *pa = (struct pci_attach_args *) aux;
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if (ex_pci_lookup(pa) != NULL)
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return (2); /* beat ep_pci */
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return (0);
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}
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void
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ex_pci_attach(parent, self, aux)
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struct device *parent, *self;
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void *aux;
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{
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struct ex_softc *sc = (void *)self;
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struct ex_pci_softc *psc = (void *)self;
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struct pci_attach_args *pa = aux;
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pci_chipset_tag_t pc = pa->pa_pc;
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pci_intr_handle_t ih;
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const struct ex_pci_product *epp;
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const char *intrstr = NULL;
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int rev, pmreg;
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pcireg_t reg;
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if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0,
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&sc->sc_iot, &sc->sc_ioh, NULL, NULL)) {
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printf(": can't map i/o space\n");
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return;
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}
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epp = ex_pci_lookup(pa);
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if (epp == NULL) {
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printf("\n");
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panic("ex_pci_attach: impossible");
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}
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rev = PCI_REVISION(pci_conf_read(pc, pa->pa_tag, PCI_CLASS_REG));
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printf(": 3Com %s (rev. 0x%x)\n", epp->epp_name, rev);
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sc->enable = NULL;
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sc->disable = NULL;
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sc->enabled = 1;
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sc->sc_dmat = pa->pa_dmat;
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sc->ex_bustype = EX_BUS_PCI;
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sc->ex_conf = epp->epp_flags;
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/* Enable the card. */
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pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
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pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG) |
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PCI_COMMAND_MASTER_ENABLE);
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/* Get it out of power save mode if needed (BIOS bugs) */
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if (pci_get_capability(pc, pa->pa_tag, PCI_CAP_PWRMGMT, &pmreg, 0)) {
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reg = pci_conf_read(pc, pa->pa_tag, pmreg + 4) & 0x3;
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if (reg == 3) {
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/*
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* The card has lost all configuration data in
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* this state, so punt.
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*/
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printf("%s: unable to wake up from power state D3\n",
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sc->sc_dev.dv_xname);
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return;
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}
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if (reg != 0) {
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printf("%s: waking up from power state D%d\n",
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sc->sc_dev.dv_xname, reg);
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pci_conf_write(pc, pa->pa_tag, pmreg + 4, 0);
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}
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}
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/* Map and establish the interrupt. */
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if (pci_intr_map(pa, &ih)) {
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printf("%s: couldn't map interrupt\n", sc->sc_dev.dv_xname);
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return;
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}
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if (sc->ex_conf & EX_CONF_PCI_FUNCREG) {
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sc->intr_ack = ex_pci_intr_ack;
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psc->sc_chiptag = pa->pa_pc;
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psc->sc_pcitag = pa->pa_tag;
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}
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intrstr = pci_intr_string(pc, ih);
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sc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, ex_intr, sc);
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if (sc->sc_ih == NULL) {
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printf("%s: couldn't establish interrupt",
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sc->sc_dev.dv_xname);
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if (intrstr != NULL)
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printf(" at %s", intrstr);
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printf("\n");
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return;
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}
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printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr);
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ex_config(sc);
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}
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void
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ex_pci_intr_ack(sc)
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struct ex_softc *sc;
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{
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struct ex_pci_softc *psc = (struct ex_pci_softc *)sc;
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pci_conf_write(psc->sc_chiptag, psc->sc_pcitag, PCI_FUNCMEM + 4,
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PCI_INTRACK);
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}
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