264 lines
7.0 KiB
C
264 lines
7.0 KiB
C
/* $NetBSD: if_fxp_cardbus.c,v 1.53 2022/09/25 17:33:19 thorpej Exp $ */
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/*
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* Copyright (c) 1999 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 Johan Danielsson.
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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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*
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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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/*
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* CardBus front-end for the Intel i82557 family of Ethernet chips.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: if_fxp_cardbus.c,v 1.53 2022/09/25 17:33:19 thorpej Exp $");
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#include "opt_inet.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/kernel.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/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_media.h>
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#include <net/if_ether.h>
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#include <machine/endian.h>
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#ifdef INET
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#include <netinet/in.h>
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#include <netinet/if_inarp.h>
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#endif
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#include <sys/bus.h>
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#include <sys/intr.h>
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#include <dev/mii/miivar.h>
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#include <dev/ic/i82557reg.h>
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#include <dev/ic/i82557var.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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#include <dev/cardbus/cardbusvar.h>
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#include <dev/pci/pcidevs.h>
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static int fxp_cardbus_match(device_t, cfdata_t, void *);
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static void fxp_cardbus_attach(device_t, device_t, void *);
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static int fxp_cardbus_detach(device_t, int);
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static void fxp_cardbus_setup(struct fxp_softc *);
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static int fxp_cardbus_enable(struct fxp_softc *);
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static void fxp_cardbus_disable(struct fxp_softc *);
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struct fxp_cardbus_softc {
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struct fxp_softc sc;
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cardbus_devfunc_t ct;
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pcitag_t tag;
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pcireg_t base0_reg;
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pcireg_t base1_reg;
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};
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CFATTACH_DECL3_NEW(fxp_cardbus, sizeof(struct fxp_cardbus_softc),
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fxp_cardbus_match, fxp_cardbus_attach, fxp_cardbus_detach, fxp_activate,
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NULL, null_childdetached, DVF_DETACH_SHUTDOWN);
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#ifdef CBB_DEBUG
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#define DPRINTF(X) printf X
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#else
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#define DPRINTF(X)
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#endif
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static int
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fxp_cardbus_match(device_t parent, cfdata_t match, void *aux)
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{
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struct cardbus_attach_args *ca = aux;
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if (PCI_VENDOR(ca->ca_id) == PCI_VENDOR_INTEL &&
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PCI_PRODUCT(ca->ca_id) == PCI_PRODUCT_INTEL_8255X)
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return (1);
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return (0);
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}
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static void
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fxp_cardbus_attach(device_t parent, device_t self, void *aux)
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{
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struct fxp_cardbus_softc *csc = device_private(self);
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struct fxp_softc *sc = &csc->sc;
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struct cardbus_attach_args *ca = aux;
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bus_space_tag_t iot, memt;
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bus_space_handle_t ioh, memh;
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bus_addr_t adr;
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sc->sc_dev = self;
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csc->ct = ca->ca_ct;
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csc->tag = ca->ca_tag;
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/*
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* Map control/status registers.
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*/
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if (Cardbus_mapreg_map(csc->ct, PCI_BAR1,
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PCI_MAPREG_TYPE_IO, 0, &iot, &ioh, &adr, &sc->sc_size) == 0) {
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csc->base1_reg = adr | 1;
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sc->sc_st = iot;
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sc->sc_sh = ioh;
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} else if (Cardbus_mapreg_map(csc->ct, PCI_BAR0,
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PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT,
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0, &memt, &memh, &adr, &sc->sc_size) == 0) {
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csc->base0_reg = adr;
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sc->sc_st = memt;
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sc->sc_sh = memh;
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} else
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panic("%s: failed to allocate mem and io space", __func__);
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if (ca->ca_cis.cis1_info[0] && ca->ca_cis.cis1_info[1])
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printf(": %s %s\n", ca->ca_cis.cis1_info[0],
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ca->ca_cis.cis1_info[1]);
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else
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printf("\n");
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sc->sc_rev = PCI_REVISION(ca->ca_class);
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if (sc->sc_rev >= FXP_REV_82558_A4)
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sc->sc_flags |= FXPF_FC|FXPF_EXT_TXCB;
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if (sc->sc_rev >= FXP_REV_82559_A0)
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sc->sc_flags |= FXPF_82559_RXCSUM;
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if (sc->sc_rev >= FXP_REV_82550) {
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sc->sc_flags &= ~FXPF_82559_RXCSUM;
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sc->sc_flags |= FXPF_EXT_RFA;
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}
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sc->sc_dmat = ca->ca_dmat;
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sc->sc_enable = fxp_cardbus_enable;
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sc->sc_disable = fxp_cardbus_disable;
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sc->sc_enabled = 0;
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fxp_enable(sc);
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fxp_attach(sc);
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fxp_disable(sc);
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if (pmf_device_register(self, NULL, NULL))
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pmf_class_network_register(self, &sc->sc_ethercom.ec_if);
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else
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aprint_error_dev(self, "couldn't establish power handler\n");
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}
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static void
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fxp_cardbus_setup(struct fxp_softc * sc)
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{
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struct fxp_cardbus_softc *csc = (struct fxp_cardbus_softc *)sc;
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pcireg_t command;
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pcitag_t tag = csc->tag;
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command = Cardbus_conf_read(csc->ct, tag, PCI_COMMAND_STATUS_REG);
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if (csc->base0_reg) {
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Cardbus_conf_write(csc->ct, tag,
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PCI_BAR0, csc->base0_reg);
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command |= PCI_COMMAND_MEM_ENABLE | PCI_COMMAND_MASTER_ENABLE;
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} else if (csc->base1_reg) {
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Cardbus_conf_write(csc->ct, tag,
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PCI_BAR1, csc->base1_reg);
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command |= PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MASTER_ENABLE;
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}
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/* enable the card */
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Cardbus_conf_write(csc->ct, tag, PCI_COMMAND_STATUS_REG, command);
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}
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static int
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fxp_cardbus_enable(struct fxp_softc * sc)
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{
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struct fxp_cardbus_softc *csc = (struct fxp_cardbus_softc *)sc;
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cardbus_devfunc_t ct = csc->ct;
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Cardbus_function_enable(csc->ct);
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fxp_cardbus_setup(sc);
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/* Map and establish the interrupt. */
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sc->sc_ih = Cardbus_intr_establish(ct, IPL_NET, fxp_intr, sc);
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if (NULL == sc->sc_ih) {
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aprint_error_dev(sc->sc_dev, "couldn't establish interrupt\n");
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return 1;
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}
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return 0;
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}
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static void
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fxp_cardbus_disable(struct fxp_softc * sc)
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{
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struct fxp_cardbus_softc *csc = (struct fxp_cardbus_softc *)sc;
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cardbus_devfunc_t ct = csc->ct;
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/* Remove interrupt handler. */
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Cardbus_intr_disestablish(ct, sc->sc_ih);
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Cardbus_function_disable(csc->ct);
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}
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static int
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fxp_cardbus_detach(device_t self, int flags)
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{
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struct fxp_cardbus_softc *csc = device_private(self);
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struct fxp_softc *sc = &csc->sc;
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struct cardbus_devfunc *ct = csc->ct;
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int rv, reg;
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#ifdef DIAGNOSTIC
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if (ct == NULL)
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panic("%s: data structure lacks", device_xname(self));
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#endif
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if ((rv = fxp_detach(sc, flags)) != 0)
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return rv;
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/*
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* Unhook the interrupt handler.
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*/
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Cardbus_intr_disestablish(ct, sc->sc_ih);
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/*
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* release bus space and close window
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*/
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if (csc->base0_reg)
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reg = PCI_BAR0;
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else
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reg = PCI_BAR1;
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Cardbus_mapreg_unmap(ct, reg, sc->sc_st, sc->sc_sh, sc->sc_size);
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return 0;
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}
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