/* $NetBSD: if_rtk_pci.c,v 1.46 2015/05/09 21:53:45 christos Exp $ */ /* * Copyright (c) 1997, 1998 * Bill Paul . All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Bill Paul. * 4. Neither the name of the author nor the names of any co-contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF * THE POSSIBILITY OF SUCH DAMAGE. * * FreeBSD Id: if_rl.c,v 1.17 1999/06/19 20:17:37 wpaul Exp */ /* * Realtek 8129/8139 PCI NIC driver * * Supports several extremely cheap PCI 10/100 adapters based on * the Realtek chipset. Datasheets can be obtained from * www.realtek.com.tw. * * Written by Bill Paul * Electrical Engineering Department * Columbia University, New York City */ #include __KERNEL_RCSID(0, "$NetBSD: if_rtk_pci.c,v 1.46 2015/05/09 21:53:45 christos Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include struct rtk_pci_softc { struct rtk_softc sc_rtk; /* real rtk softc */ /* PCI-specific goo.*/ void *sc_ih; pci_chipset_tag_t sc_pc; }; static const struct rtk_type rtk_pci_devs[] = { { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8129, RTK_8129, "Realtek 8129 10/100BaseTX" }, { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8139, RTK_8139, "Realtek 8139 10/100BaseTX" }, { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8138, RTK_8139, "Realtek 8138 10/100BaseTX" }, { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8139D, RTK_8139, "Realtek 8139D 10/100BaseTX" }, { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8100, RTK_8139, "Realtek 8100 10/100BaseTX" }, { PCI_VENDOR_ACCTON, PCI_PRODUCT_ACCTON_MPX5030, RTK_8139, "Accton MPX 5030/5038 10/100BaseTX" }, { PCI_VENDOR_DELTA, PCI_PRODUCT_DELTA_8139, RTK_8139, "Delta Electronics 8139 10/100BaseTX" }, { PCI_VENDOR_ADDTRON, PCI_PRODUCT_ADDTRON_8139, RTK_8139, "Addtron Technology 8139 10/100BaseTX" }, { PCI_VENDOR_SEGA, PCI_PRODUCT_SEGA_BROADBAND, RTK_8139, "SEGA Broadband Adapter" }, { PCI_VENDOR_DLINK, PCI_PRODUCT_DLINK_DFE520TX, RTK_8139, "D-Link Systems DFE 520TX" }, { PCI_VENDOR_DLINK, PCI_PRODUCT_DLINK_DFE530TXPLUS, RTK_8139, "D-Link Systems DFE 530TX+" }, { PCI_VENDOR_NORTEL, PCI_PRODUCT_NORTEL_BAYSTACK_21, RTK_8139, "Baystack 21 (MPX EN5038) 10/100BaseTX" }, }; static int rtk_pci_match(device_t, cfdata_t, void *); static void rtk_pci_attach(device_t, device_t, void *); static int rtk_pci_detach(device_t, int); CFATTACH_DECL_NEW(rtk_pci, sizeof(struct rtk_pci_softc), rtk_pci_match, rtk_pci_attach, rtk_pci_detach, NULL); static const struct rtk_type * rtk_pci_lookup(const struct pci_attach_args *pa) { int i; for (i = 0; i < __arraycount(rtk_pci_devs); i++) { if (PCI_VENDOR(pa->pa_id) != rtk_pci_devs[i].rtk_vid) continue; if (PCI_PRODUCT(pa->pa_id) == rtk_pci_devs[i].rtk_did) return &rtk_pci_devs[i]; } return NULL; } static int rtk_pci_match(device_t parent, cfdata_t cf, void *aux) { struct pci_attach_args *pa = aux; if (rtk_pci_lookup(pa) != NULL) return 1; return 0; } /* * Attach the interface. Allocate softc structures, do ifmedia * setup and ethernet/BPF attach. */ static void rtk_pci_attach(device_t parent, device_t self, void *aux) { struct rtk_pci_softc *psc = device_private(self); struct rtk_softc *sc = &psc->sc_rtk; struct pci_attach_args *pa = aux; pci_chipset_tag_t pc = pa->pa_pc; pci_intr_handle_t ih; bus_space_tag_t iot, memt; bus_space_handle_t ioh, memh; bus_size_t iosize, memsize; pcireg_t csr; const char *intrstr = NULL; const struct rtk_type *t; bool ioh_valid, memh_valid; char intrbuf[PCI_INTRSTR_LEN]; sc->sc_dev = self; psc->sc_pc = pa->pa_pc; t = rtk_pci_lookup(pa); KASSERT(t != NULL); pci_aprint_devinfo_fancy(pa, NULL, t->rtk_name, 1); /* * Map control/status registers. * * The original FreeBSD's driver has the following comment: * * Default to using PIO access for this driver. On SMP systems, * there appear to be problems with memory mapped mode: * it looks like doing too many memory mapped access * back to back in rapid succession can hang the bus. * I'm inclined to blame this on crummy design/construction * on the part of Realtek. Memory mapped mode does appear to * work on uniprocessor systems though. * * On NetBSD, some ports don't support PCI I/O space properly, * so we try to map both and prefer I/O space to mem space. */ ioh_valid = (pci_mapreg_map(pa, RTK_PCI_LOIO, PCI_MAPREG_TYPE_IO, 0, &iot, &ioh, NULL, &iosize) == 0); memh_valid = (pci_mapreg_map(pa, RTK_PCI_LOMEM, PCI_MAPREG_TYPE_MEM, 0, &memt, &memh, NULL, &memsize) == 0); if (ioh_valid) { sc->rtk_btag = iot; sc->rtk_bhandle = ioh; sc->rtk_bsize = iosize; if (memh_valid) bus_space_unmap(memt, memh, memsize); } else if (memh_valid) { sc->rtk_btag = memt; sc->rtk_bhandle = memh; sc->rtk_bsize = memsize; } else { aprint_error_dev(self, "can't map registers\n"); return; } /* Allocate interrupt */ if (pci_intr_map(pa, &ih)) { aprint_error_dev(self, "couldn't map interrupt\n"); return; } intrstr = pci_intr_string(pc, ih, intrbuf, sizeof(intrbuf)); psc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, rtk_intr, sc); if (psc->sc_ih == NULL) { aprint_error_dev(self, "couldn't establish interrupt"); if (intrstr != NULL) aprint_error(" at %s", intrstr); aprint_error("\n"); return; } if (t->rtk_basetype == RTK_8129) sc->sc_quirk |= RTKQ_8129; aprint_normal_dev(self, "interrupting at %s\n", intrstr); csr = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); csr |= PCI_COMMAND_MASTER_ENABLE; pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, csr); sc->sc_dmat = pa->pa_dmat; sc->sc_flags |= RTK_ENABLED; if (pmf_device_register(self, NULL, NULL)) pmf_class_network_register(self, &sc->ethercom.ec_if); else aprint_error_dev(self, "couldn't establish power handler\n"); rtk_attach(sc); } static int rtk_pci_detach(device_t self, int flags) { struct rtk_pci_softc *psc = device_private(self); struct rtk_softc *sc = &psc->sc_rtk; int rv; /* rtk_stop() */ sc->ethercom.ec_if.if_stop(&sc->ethercom.ec_if, 0); rv = rtk_detach(sc); if (rv) return rv; if (psc->sc_ih != NULL) { pci_intr_disestablish(psc->sc_pc, psc->sc_ih); psc->sc_ih = NULL; } if (sc->rtk_bsize != 0) { bus_space_unmap(sc->rtk_btag, sc->rtk_bhandle, sc->rtk_bsize); sc->rtk_bsize = 0; } return 0; }