352 lines
10 KiB
C
352 lines
10 KiB
C
/* $NetBSD: if_re_pci.c,v 1.13 2006/06/18 21:32:24 christos Exp $ */
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/*
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* Copyright (c) 1997, 1998-2003
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* Bill Paul <wpaul@windriver.com>. All rights reserved.
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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 Bill Paul.
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* 4. Neither the name of the author nor the names of any co-contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
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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
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/* $FreeBSD: /repoman/r/ncvs/src/sys/dev/re/if_re.c,v 1.20 2004/04/11 20:34:08 ru Exp $ */
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/*
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* RealTek 8139C+/8169/8169S/8110S PCI NIC driver
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*
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* Written by Bill Paul <wpaul@windriver.com>
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* Senior Networking Software Engineer
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* Wind River Systems
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*
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* Netbsd bus-specific frontends for written by
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* Jonathan Stone <jonathan@netbsd.org>
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*/
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#include "bpfilter.h"
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#include "vlan.h"
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/endian.h>
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#include <sys/systm.h>
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#include <sys/sockio.h>
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#include <sys/mbuf.h>
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#include <sys/malloc.h>
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#include <sys/kernel.h>
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#include <sys/socket.h>
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#include <sys/device.h>
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#include <net/if.h>
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#include <net/if_arp.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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#include <net/if_vlanvar.h>
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#include <machine/bus.h>
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#include <dev/mii/mii.h>
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#include <dev/mii/miivar.h>
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#include <dev/pci/pcireg.h>
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#include <dev/pci/pcivar.h>
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#include <dev/pci/pcidevs.h>
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/*
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* Default to using PIO access for this driver.
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*/
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#define RE_USEIOSPACE
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#include <dev/ic/rtl81x9reg.h>
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#include <dev/ic/rtl81x9var.h>
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#include <dev/ic/rtl8169var.h>
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struct re_pci_softc {
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struct rtk_softc sc_rtk;
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void *sc_ih;
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pci_chipset_tag_t sc_pc;
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pcitag_t sc_pcitag;
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};
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static int re_pci_probe(struct device *, struct cfdata *, void *);
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static void re_pci_attach(struct device *, struct device *, void *);
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/*
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* Various supported device vendors/types and their names.
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*/
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static const struct rtk_type re_devs[] = {
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{ PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8139, RTK_HWREV_8139CPLUS,
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"RealTek 8139C+ 10/100BaseTX" },
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{ PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8168, RTK_HWREV_8168,
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"RealTek 8168B/8111B Gigabit Ethernet" },
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{ PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8169, RTK_HWREV_8169,
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"RealTek 8169 Gigabit Ethernet" },
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{ PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8169, RTK_HWREV_8169S,
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"RealTek 8169S Single-chip Gigabit Ethernet" },
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{ PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8169, RTK_HWREV_8169SB,
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"RealTek 8169SB Single-chip Gigabit Ethernet" },
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{ PCI_VENDOR_COREGA, PCI_PRODUCT_COREGA_LAPCIGT, RTK_HWREV_8169S,
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"Corega CG-LAPCIGT Gigabit Ethernet" },
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{ PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8169, RTK_HWREV_8110S,
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"RealTek 8110S Single-chip Gigabit Ethernet" },
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{ PCI_VENDOR_DLINK, PCI_PRODUCT_DLINK_DGE528T, RTK_HWREV_8169S,
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"D-Link DGE-528T Gigabit Ethernet" },
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{ PCI_VENDOR_USR2, PCI_PRODUCT_USR2_USR997902, RTK_HWREV_8169S,
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"US Robotics (3Com) USR997902 Gigabit Ethernet" },
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{ PCI_VENDOR_LINKSYS, PCI_PRODUCT_LINKSYS_EG1032, RTK_HWREV_8169S,
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"Linksys EG1032 rev. 3 Gigabit Ethernet" },
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{ 0, 0, 0, NULL }
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};
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static const struct rtk_hwrev re_hwrevs[] = {
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{ RTK_HWREV_8139, RTK_8139, "" },
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{ RTK_HWREV_8139A, RTK_8139, "A" },
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{ RTK_HWREV_8139AG, RTK_8139, "A-G" },
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{ RTK_HWREV_8139B, RTK_8139, "B" },
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{ RTK_HWREV_8130, RTK_8139, "8130" },
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{ RTK_HWREV_8139C, RTK_8139, "C" },
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{ RTK_HWREV_8139D, RTK_8139, "8139D/8100B/8100C" },
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{ RTK_HWREV_8139CPLUS, RTK_8139CPLUS, "C+"},
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{ RTK_HWREV_8168, RTK_8169, "8168B/8111B"},
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{ RTK_HWREV_8169, RTK_8169, "8169"},
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{ RTK_HWREV_8169S, RTK_8169, "8169S"},
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{ RTK_HWREV_8169SB, RTK_8169, "8169SB"},
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{ RTK_HWREV_8110S, RTK_8169, "8110S"},
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{ RTK_HWREV_8100, RTK_8139, "8100"},
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{ RTK_HWREV_8101, RTK_8139, "8101"},
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{ 0, 0, NULL }
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};
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#define RE_LINKSYS_EG1032_SUBID 0x00241737
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CFATTACH_DECL(re_pci, sizeof(struct re_pci_softc), re_pci_probe, re_pci_attach,
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NULL, NULL);
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/*
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* Probe for a RealTek 8139C+/8169/8110 chip. Check the PCI vendor and device
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* IDs against our list and return a device name if we find a match.
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*/
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static int
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re_pci_probe(struct device *parent, struct cfdata *match, void *aux)
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{
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const struct rtk_type *t;
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struct pci_attach_args *pa = aux;
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bus_space_tag_t rtk_btag;
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bus_space_handle_t rtk_bhandle;
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bus_size_t bsize;
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u_int32_t hwrev;
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pcireg_t subid;
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subid = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_SUBSYS_ID_REG);
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/* special-case Linksys EG1032, since rev 2 uses sk(4) */
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if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_LINKSYS &&
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PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_LINKSYS_EG1032 &&
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subid == RE_LINKSYS_EG1032_SUBID)
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return 1;
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t = re_devs;
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while (t->rtk_name != NULL) {
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if ((PCI_VENDOR(pa->pa_id) == t->rtk_vid) &&
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(PCI_PRODUCT(pa->pa_id) == t->rtk_did)) {
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/*
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* Temporarily map the I/O space
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* so we can read the chip ID register.
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*/
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#ifdef RE_USEIOSPACE
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if (pci_mapreg_map(pa, RTK_PCI_LOIO,
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PCI_MAPREG_TYPE_IO, 0, &rtk_btag,
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&rtk_bhandle, NULL, &bsize)) {
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aprint_error("can't map i/o space\n");
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return 0;
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}
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#else
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if (pci_mapreg_map(pa, RTK_PCI_LOMEM,
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PCI_MAPREG_TYPE_MEM, 0, &rtk_btag,
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&rtk_bhandle, NULL, &bsize)) {
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aprint_error("can't map mem space\n");
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return 0;
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}
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#endif
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hwrev = bus_space_read_4(rtk_btag, rtk_bhandle,
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RTK_TXCFG) & RTK_TXCFG_HWREV;
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bus_space_unmap(rtk_btag, rtk_bhandle, bsize);
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if (t->rtk_basetype == hwrev)
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return 2; /* defeat rtk(4) */
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}
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t++;
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}
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return 0;
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}
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static void
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re_pci_attach(struct device *parent, struct device *self, void *aux)
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{
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struct re_pci_softc *psc = (void *)self;
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struct rtk_softc *sc = &psc->sc_rtk;
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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 char *intrstr = NULL;
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const struct rtk_type *t;
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const struct rtk_hwrev *hw_rev;
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int hwrev;
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int error = 0;
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int pmreg;
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pcireg_t command;
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bus_size_t bsize;
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/*
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* Handle power management nonsense.
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*/
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if (pci_get_capability(pc, pa->pa_tag, PCI_CAP_PWRMGMT, &pmreg, 0)) {
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command = pci_conf_read(pc, pa->pa_tag, pmreg + PCI_PMCSR);
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if (command & RTK_PSTATE_MASK) {
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u_int32_t iobase, membase, irq;
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/* Save important PCI config data. */
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iobase = pci_conf_read(pc, pa->pa_tag, RTK_PCI_LOIO);
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membase = pci_conf_read(pc, pa->pa_tag, RTK_PCI_LOMEM);
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irq = pci_conf_read(pc, pa->pa_tag, PCI_INTERRUPT_REG);
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/* Reset the power state. */
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aprint_normal("%s: chip is is in D%d power mode "
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"-- setting to D0\n", sc->sc_dev.dv_xname,
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command & RTK_PSTATE_MASK);
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command &= ~RTK_PSTATE_MASK;
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pci_conf_write(pc, pa->pa_tag,
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pmreg + PCI_PMCSR, command);
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/* Restore PCI config data. */
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pci_conf_write(pc, pa->pa_tag, RTK_PCI_LOIO, iobase);
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pci_conf_write(pc, pa->pa_tag, RTK_PCI_LOMEM, membase);
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pci_conf_write(pc, pa->pa_tag, PCI_INTERRUPT_REG, irq);
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}
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}
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/*
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* Map control/status registers.
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*/
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command = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
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command |= PCI_COMMAND_MASTER_ENABLE;
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pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, command);
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#ifdef RE_USEIOSPACE
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if (pci_mapreg_map(pa, RTK_PCI_LOIO, PCI_MAPREG_TYPE_IO, 0,
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&sc->rtk_btag, &sc->rtk_bhandle, NULL, &bsize)) {
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aprint_error("%s: can't map i/o space\n", sc->sc_dev.dv_xname);
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return;
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}
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#else
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if (pci_mapreg_map(pa, RTK_PCI_LOMEM, PCI_MAPREG_TYPE_MEM, 0,
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&sc->rtk_btag, &sc->rtk_bhandle, NULL, &bsize)) {
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aprint_error("%s: can't map mem space\n", sc->sc_dev.dv_xname);
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return;
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}
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#endif
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t = re_devs;
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hwrev = CSR_READ_4(sc, RTK_TXCFG) & RTK_TXCFG_HWREV;
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while (t->rtk_name != NULL) {
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if ((PCI_VENDOR(pa->pa_id) == t->rtk_vid) &&
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(PCI_PRODUCT(pa->pa_id) == t->rtk_did)) {
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if (t->rtk_basetype == hwrev)
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break;
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}
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t++;
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}
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aprint_normal(": %s\n", t->rtk_name);
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hw_rev = re_hwrevs;
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hwrev = CSR_READ_4(sc, RTK_TXCFG) & RTK_TXCFG_HWREV;
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while (hw_rev->rtk_desc != NULL) {
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if (hw_rev->rtk_rev == hwrev) {
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sc->rtk_type = hw_rev->rtk_type;
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break;
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}
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hw_rev++;
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}
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sc->sc_dmat = pa->pa_dmat;
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/*
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* No power/enable/disable machinery for PCI attac;
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* mark the card enabled now.
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*/
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sc->sc_flags |= RTK_ENABLED;
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/* Hook interrupt last to avoid having to lock softc */
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/* Allocate interrupt */
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if (pci_intr_map(pa, &ih)) {
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aprint_error("%s: couldn't map interrupt\n",
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sc->sc_dev.dv_xname);
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return;
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}
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intrstr = pci_intr_string(pc, ih);
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psc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, re_intr, sc);
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if (psc->sc_ih == NULL) {
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aprint_error("%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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aprint_error(" at %s", intrstr);
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aprint_error("\n");
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return;
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}
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aprint_normal("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr);
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re_attach(sc);
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/*
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* Perform hardware diagnostic.
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* XXX: this diagnostic only makes sense for attachemnts with 64-bit
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* busses: PCI, but not CardBus.
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*/
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error = re_diag(sc);
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if (error) {
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aprint_error(
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"%s: attach aborted due to hardware diag failure\n",
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sc->sc_dev.dv_xname);
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re_detach(sc);
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if (psc->sc_ih != NULL) {
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pci_intr_disestablish(pc, psc->sc_ih);
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psc->sc_ih = NULL;
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}
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if (bsize)
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bus_space_unmap(sc->rtk_btag, sc->rtk_bhandle, bsize);
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}
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}
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