/* $NetBSD: if_rtk_pci.c,v 1.21 2004/08/21 23:48:33 thorpej 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 1.21 2004/08/21 23:48:33 thorpej Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include /* * 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. */ #ifndef dreamcast /* XXX */ #define RTK_USEIOSPACE #endif #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; /* PCI chipset */ pcitag_t sc_pcitag; /* PCI tag */ }; 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_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_DFE530TXPLUS, RTK_8139, "D-Link Systems DFE 530TX+" }, { 0, 0, 0, NULL } }; static int rtk_pci_match(struct device *, struct cfdata *, void *); static void rtk_pci_attach(struct device *, struct device *, void *); CFATTACH_DECL(rtk_pci, sizeof(struct rtk_pci_softc), rtk_pci_match, rtk_pci_attach, NULL, NULL); static const struct rtk_type * rtk_pci_lookup(const struct pci_attach_args *pa) { const struct rtk_type *t; for (t = rtk_pci_devs; t->rtk_name != NULL; t++) { if (PCI_VENDOR(pa->pa_id) == t->rtk_vid && PCI_PRODUCT(pa->pa_id) == t->rtk_did) { return (t); } } return (NULL); } static int rtk_pci_match(struct device *parent, struct cfdata *match, 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(struct device *parent, struct device *self, void *aux) { struct rtk_pci_softc *psc = (struct rtk_pci_softc *)self; struct rtk_softc *sc = &psc->sc_rtk; pcireg_t command; struct pci_attach_args *pa = aux; pci_chipset_tag_t pc = pa->pa_pc; pci_intr_handle_t ih; const char *intrstr = NULL; const struct rtk_type *t; int pmreg; psc->sc_pc = pa->pa_pc; psc->sc_pcitag = pa->pa_tag; t = rtk_pci_lookup(pa); if (t == NULL) { printf("\n"); panic("rtk_pci_attach: impossible"); } printf(": %s\n", t->rtk_name); /* * Handle power management nonsense. */ if (pci_get_capability(pc, pa->pa_tag, PCI_CAP_PWRMGMT, &pmreg, 0)) { command = pci_conf_read(pc, pa->pa_tag, pmreg + 4); if (command & RTK_PSTATE_MASK) { pcireg_t iobase, membase, irq; /* Save important PCI config data. */ iobase = pci_conf_read(pc, pa->pa_tag, RTK_PCI_LOIO); membase = pci_conf_read(pc, pa->pa_tag, RTK_PCI_LOMEM); irq = pci_conf_read(pc, pa->pa_tag, PCI_INTERRUPT_REG); /* Reset the power state. */ printf("%s: chip is in D%d power mode " "-- setting to D0\n", sc->sc_dev.dv_xname, command & RTK_PSTATE_MASK); command &= 0xFFFFFFFC; pci_conf_write(pc, pa->pa_tag, pmreg + 4, command); /* Restore PCI config data. */ pci_conf_write(pc, pa->pa_tag, RTK_PCI_LOIO, iobase); pci_conf_write(pc, pa->pa_tag, RTK_PCI_LOMEM, membase); pci_conf_write(pc, pa->pa_tag, PCI_INTERRUPT_REG, irq); } } /* * Map control/status registers. */ #ifdef RTK_USEIOSPACE if (pci_mapreg_map(pa, RTK_PCI_LOIO, PCI_MAPREG_TYPE_IO, 0, &sc->rtk_btag, &sc->rtk_bhandle, NULL, NULL)) { printf("%s: can't map i/o space\n", sc->sc_dev.dv_xname); return; } #else if (pci_mapreg_map(pa, RTK_PCI_LOMEM, PCI_MAPREG_TYPE_MEM, 0, &sc->rtk_btag, &sc->rtk_bhandle, NULL, NULL)) { printf("%s: can't map mem space\n", sc->sc_dev.dv_xname); return; } #endif /* Allocate interrupt */ if (pci_intr_map(pa, &ih)) { printf("%s: couldn't map interrupt\n", sc->sc_dev.dv_xname); return; } intrstr = pci_intr_string(pc, ih); psc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, rtk_intr, sc); if (psc->sc_ih == NULL) { printf("%s: couldn't establish interrupt", sc->sc_dev.dv_xname); if (intrstr != NULL) printf(" at %s", intrstr); printf("\n"); return; } sc->rtk_type = t->rtk_basetype; printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr); sc->sc_dmat = pa->pa_dmat; sc->sc_flags |= RTK_ENABLED; rtk_attach(sc); }