262 lines
7.6 KiB
C
262 lines
7.6 KiB
C
/* $NetBSD: if_rtk_pci.c,v 1.18 2003/01/29 12:57:36 kanaoka Exp $ */
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/*
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* Copyright (c) 1997, 1998
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* Bill Paul <wpaul@ctr.columbia.edu>. 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 Id: if_rl.c,v 1.17 1999/06/19 20:17:37 wpaul Exp
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*/
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/*
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* RealTek 8129/8139 PCI NIC driver
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*
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* Supports several extremely cheap PCI 10/100 adapters based on
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* the RealTek chipset. Datasheets can be obtained from
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* www.realtek.com.tw.
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*
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* Written by Bill Paul <wpaul@ctr.columbia.edu>
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* Electrical Engineering Department
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* Columbia University, New York City
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: if_rtk_pci.c,v 1.18 2003/01/29 12:57:36 kanaoka Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/callout.h>
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#include <sys/device.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 <net/if.h>
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#include <net/if_arp.h>
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#include <net/if_ether.h>
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#include <net/if_dl.h>
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#include <net/if_media.h>
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#include <machine/bus.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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#include <dev/mii/mii.h>
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#include <dev/mii/miivar.h>
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/*
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* Default to using PIO access for this driver. On SMP systems,
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* there appear to be problems with memory mapped mode: it looks like
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* doing too many memory mapped access back to back in rapid succession
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* can hang the bus. I'm inclined to blame this on crummy design/construction
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* on the part of RealTek. Memory mapped mode does appear to work on
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* uniprocessor systems though.
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*/
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#ifndef dreamcast /* XXX */
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#define RTK_USEIOSPACE
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#endif
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#include <dev/ic/rtl81x9reg.h>
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#include <dev/ic/rtl81x9var.h>
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struct rtk_pci_softc {
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struct rtk_softc sc_rtk; /* real rtk softc */
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/* PCI-specific goo.*/
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void *sc_ih;
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pci_chipset_tag_t sc_pc; /* PCI chipset */
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pcitag_t sc_pcitag; /* PCI tag */
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};
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static const struct rtk_type rtk_pci_devs[] = {
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{ PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8129,
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"RealTek 8129 10/100BaseTX",
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RTK_8129 },
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{ PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8139,
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"RealTek 8139 10/100BaseTX",
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RTK_8139 },
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{ PCI_VENDOR_ACCTON, PCI_PRODUCT_ACCTON_MPX5030,
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"Accton MPX 5030/5038 10/100BaseTX",
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RTK_8139 },
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{ PCI_VENDOR_DELTA, PCI_PRODUCT_DELTA_8139,
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"Delta Electronics 8139 10/100BaseTX",
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RTK_8139 },
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{ PCI_VENDOR_ADDTRON, PCI_PRODUCT_ADDTRON_8139,
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"Addtron Technology 8139 10/100BaseTX",
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RTK_8139 },
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{ PCI_VENDOR_SEGA, PCI_PRODUCT_SEGA_BROADBAND,
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"SEGA Broadband Adapter",
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RTK_8139 },
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{ PCI_VENDOR_DLINK, PCI_PRODUCT_DLINK_DFE530TXPLUS,
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"D-Link Systems DFE 530TX+",
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RTK_8139 },
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{ 0, 0, NULL, 0 }
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};
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const struct rtk_type *rtk_pci_lookup __P((const struct pci_attach_args *));
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int rtk_pci_match __P((struct device *, struct cfdata *, void *));
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void rtk_pci_attach __P((struct device *, struct device *, void *));
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CFATTACH_DECL(rtk_pci, sizeof(struct rtk_pci_softc),
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rtk_pci_match, rtk_pci_attach, NULL, NULL);
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const struct rtk_type *
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rtk_pci_lookup(pa)
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const struct pci_attach_args *pa;
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{
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const struct rtk_type *t;
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for (t = rtk_pci_devs; t->rtk_name != NULL; t++) {
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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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return (t);
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}
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}
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return (NULL);
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}
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int
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rtk_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 = aux;
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if (rtk_pci_lookup(pa) != NULL)
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return (1);
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return (0);
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}
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/*
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* Attach the interface. Allocate softc structures, do ifmedia
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* setup and ethernet/BPF attach.
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*/
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void
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rtk_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 rtk_pci_softc *psc = (struct rtk_pci_softc *)self;
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struct rtk_softc *sc = &psc->sc_rtk;
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pcireg_t command;
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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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int pmreg;
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psc->sc_pc = pa->pa_pc;
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psc->sc_pcitag = pa->pa_tag;
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t = rtk_pci_lookup(pa);
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if (t == NULL) {
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printf("\n");
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panic("rtk_pci_attach: impossible");
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}
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printf(": %s\n", t->rtk_name);
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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 + 4);
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if (command & RTK_PSTATE_MASK) {
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pcireg_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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printf("%s: chip 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 &= 0xFFFFFFFC;
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pci_conf_write(pc, pa->pa_tag, pmreg + 4, 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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#ifdef RTK_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, NULL)) {
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printf("%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, NULL)) {
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printf("%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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/* Allocate 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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intrstr = pci_intr_string(pc, ih);
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psc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, rtk_intr, sc);
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if (psc->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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sc->rtk_type = t->rtk_type;
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printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr);
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sc->sc_dmat = pa->pa_dmat;
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sc->sc_flags |= RTK_ENABLED;
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rtk_attach(sc);
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}
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