/* $NetBSD: if_rtk_cardbus.c,v 1.3 2000/05/19 13:42:30 tsutsui Exp $ */ /* * Copyright (c) 2000 Masanori Kanaoka * 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. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE AUTHOR 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. */ /* * if_rtk_cardbus.c: * Cardbus specific routines for RealTek 8139 ethernet adapter. * Tested for * - elecom-Laneed LD-10/100CBA (Accton MPX5030) * - MELCO LPC3-TX-CB (RealTek 8139) */ #include "opt_inet.h" #include "opt_ns.h" #include "bpfilter.h" #include "rnd.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef INET #include #include #endif #ifdef NS #include #include #endif #if NBPFILTER > 0 #include #endif #if NRND > 0 #include #endif #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. */ #define RTK_USEIOSPACE #include #include /* * Various supported device vendors/types and their names. */ static const struct rtk_type rtk_cardbus_devs[] = { { CARDBUS_VENDOR_ACCTON, CARDBUS_PRODUCT_ACCTON_MPX5030, "Accton MPX 5030/5038 10/100BaseTX", RTK_8139 }, { CARDBUS_VENDOR_REALTEK, CARDBUS_PRODUCT_REALTEK_RT8138, "RealTek 8138 10/100BaseTX", RTK_8139 }, { 0, 0, NULL, 0 } }; static int rtk_cardbus_match __P((struct device *, struct cfdata *, void *)); static void rtk_cardbus_attach __P((struct device *, struct device *, void *)); static int rtk_cardbus_detach __P((struct device *, int)); struct rtk_cardbus_softc { struct rtk_softc sc_rtk; /* real rtk softc */ /* CardBus-specific goo. */ void *sc_ih; cardbus_devfunc_t sc_ct; cardbustag_t sc_tag; int sc_csr; int sc_cben; int sc_bar_reg; pcireg_t sc_bar_val; bus_size_t sc_mapsize; int sc_intrline; }; struct cfattach rtk_cardbus_ca = { sizeof(struct rtk_cardbus_softc), rtk_cardbus_match, rtk_cardbus_attach, rtk_cardbus_detach, rtk_activate, }; const struct rtk_type *rtk_cardbus_lookup __P((const struct cardbus_attach_args *)); void rtk_cardbus_setup __P((struct rtk_cardbus_softc *)); int rtk_cardbus_enable __P((struct rtk_softc *)); void rtk_cardbus_disable __P((struct rtk_softc *)); void rtk_cardbus_power __P((struct rtk_softc *, int)); const struct rtk_type * rtk_cardbus_lookup(ca) const struct cardbus_attach_args *ca; { const struct rtk_type *t; for (t = rtk_cardbus_devs; t->rtk_name != NULL; t++){ if (CARDBUS_VENDOR(ca->ca_id) == t->rtk_vid && CARDBUS_PRODUCT(ca->ca_id) == t->rtk_did) { return (t); } } return (NULL); } int rtk_cardbus_match(parent, match, aux) struct device *parent; struct cfdata *match; void *aux; { struct cardbus_attach_args *ca = aux; if (rtk_cardbus_lookup(ca) != NULL) return (1); return (0); } void rtk_cardbus_attach(parent, self, aux) struct device *parent, *self; void *aux; { struct rtk_cardbus_softc *csc = (struct rtk_cardbus_softc *)self; struct rtk_softc *sc = &csc->sc_rtk; struct cardbus_attach_args *ca = aux; cardbus_devfunc_t ct = ca->ca_ct; const struct rtk_type *t; bus_addr_t adr; sc->sc_dmat = ca->ca_dmat; csc->sc_ct = ct; csc->sc_tag = ca->ca_tag; csc->sc_intrline = ca->ca_intrline; t = rtk_cardbus_lookup(ca); if (t == NULL) { printf("\n"); panic("rtk_cardbus_attach: impossible"); } printf(": %s\n", t->rtk_name); /* * Power management hooks. */ sc->sc_enable = rtk_cardbus_enable; sc->sc_disable = rtk_cardbus_disable; sc->sc_power = rtk_cardbus_power; /* * Map control/status registers. */ csc->sc_csr = CARDBUS_COMMAND_MASTER_ENABLE; #ifdef RTK_USEIOSPACE if (Cardbus_mapreg_map(ct, RTK_PCI_LOIO, CARDBUS_MAPREG_TYPE_IO, 0, &sc->rtk_btag, &sc->rtk_bhandle, &adr, &csc->sc_mapsize) == 0) { #if rbus #else (*ct->ct_cf->cardbus_io_open)(cc, 0, adr, adr+csc->sc_mapsize); #endif csc->sc_cben = CARDBUS_IO_ENABLE; csc->sc_csr |= CARDBUS_COMMAND_IO_ENABLE; csc->sc_bar_reg = RTK_PCI_LOIO; csc->sc_bar_val = adr | CARDBUS_MAPREG_TYPE_IO; } #else if (Cardbus_mapreg_map(ct, RTK_PCI_LOMEM, CARDBUS_MAPREG_TYPE_MEM, 0, &sc->rtk_btag, &sc->rtk_bhandle, &adr, &csc->sc_mapsize) == 0) { #if rbus #else (*ct->ct_cf->cardbus_mem_open)(cc, 0, adr, adr+csc->sc_mapsize); #endif csc->sc_cben = CARDBUS_MEM_ENABLE; csc->sc_csr |= CARDBUS_COMMAND_MEM_ENABLE; csc->sc_bar_reg = RTK_PCI_LOMEM; csc->sc_bar_val = adr | CARDBUS_MAPREG_TYPE_MEM; } #endif else { printf("%s: unable to map deviceregisters\n", sc->sc_dev.dv_xname); return; } /* * Handle power management nonsense and initialize the * configuration registers. */ rtk_cardbus_setup(csc); sc->rtk_type = t->rtk_type; rtk_attach(sc); /* * Power down the socket. */ Cardbus_function_disable(csc->sc_ct); } int rtk_cardbus_detach(self, flags) struct device *self; int flags; { struct rtk_cardbus_softc *csc = (void *) self; struct rtk_softc *sc = &csc->sc_rtk; struct cardbus_devfunc *ct = csc->sc_ct; int rv; #ifdef DIAGNOSTIC if (ct == NULL) panic("%s: data structure lacks\n", sc->sc_dev.dv_xname); #endif rv = rtk_detach(sc); if (rv) return (rv); /* * Unhook the interrut handler. */ if (csc->sc_ih != NULL) cardbus_intr_disestablish(ct->ct_cc, ct->ct_cf, csc->sc_ih); /* * Release bus space and close window. */ if (csc->sc_bar_reg != 0) Cardbus_mapreg_unmap(ct, csc->sc_bar_reg, sc->rtk_btag, sc->rtk_bhandle, csc->sc_mapsize); return (0); } void rtk_cardbus_setup(csc) struct rtk_cardbus_softc *csc; { struct rtk_softc *sc = &csc->sc_rtk; cardbus_devfunc_t ct = csc->sc_ct; cardbus_chipset_tag_t cc = ct->ct_cc; cardbus_function_tag_t cf = ct->ct_cf; pcireg_t reg,command; int pmreg; /* * Handle power management nonsense. */ if (cardbus_get_capability(cc, cf, csc->sc_tag, PCI_CAP_PWRMGMT, &pmreg, 0)) { command = cardbus_conf_read(cc, cf, csc->sc_tag, pmreg + 4); if (command & RTK_PSTATE_MASK) { pcireg_t iobase, membase, irq; /* Save important PCI config data. */ iobase = cardbus_conf_read(cc, cf, csc->sc_tag, RTK_PCI_LOIO); membase = cardbus_conf_read(cc, cf,csc->sc_tag, RTK_PCI_LOMEM); irq = cardbus_conf_read(cc, cf,csc->sc_tag, PCI_PRODUCT_DELTA_8139); /* Reset the power state. */ printf("%s: chip is is in D%d power mode " "-- setting to D0\n", sc->sc_dev.dv_xname, command & RTK_PSTATE_MASK); command &= 0xFFFFFFFC; cardbus_conf_write(cc, cf, csc->sc_tag, pmreg + 4, command); /* Restore PCI config data. */ cardbus_conf_write(cc, cf, csc->sc_tag, RTK_PCI_LOIO, iobase); cardbus_conf_write(cc, cf, csc->sc_tag, RTK_PCI_LOMEM, membase); cardbus_conf_write(cc, cf, csc->sc_tag, PCI_PRODUCT_DELTA_8139, irq); } } /* Make sure the right access type is on the CardBus bridge. */ (*ct->ct_cf->cardbus_ctrl)(cc, csc->sc_cben); (*ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_BM_ENABLE); /* Program the BAR */ cardbus_conf_write(cc, cf, csc->sc_tag, csc->sc_bar_reg, csc->sc_bar_val); /* Enable the appropriate bits in the CARDBUS CSR. */ reg = cardbus_conf_read(cc, cf, csc->sc_tag, CARDBUS_COMMAND_STATUS_REG); reg &= ~(CARDBUS_COMMAND_IO_ENABLE|CARDBUS_COMMAND_MEM_ENABLE); reg |= csc->sc_csr; cardbus_conf_write(cc, cf, csc->sc_tag, CARDBUS_COMMAND_STATUS_REG, reg); /* * Make sure the latency timer is set to some reasonable * value. */ reg = cardbus_conf_read(cc, cf, csc->sc_tag, CARDBUS_BHLC_REG); if (CARDBUS_LATTIMER(reg) < 0x20) { reg &= ~(CARDBUS_LATTIMER_MASK << CARDBUS_LATTIMER_SHIFT); reg |= (0x20 << CARDBUS_LATTIMER_SHIFT); cardbus_conf_write(cc, cf, csc->sc_tag, CARDBUS_BHLC_REG, reg); } } int rtk_cardbus_enable(sc) struct rtk_softc *sc; { struct rtk_cardbus_softc *csc = (void *) sc; cardbus_devfunc_t ct = csc->sc_ct; cardbus_chipset_tag_t cc = ct->ct_cc; cardbus_function_tag_t cf = ct->ct_cf; /* * Power on the socket. */ Cardbus_function_enable(ct); /* * Set up the PCI configuration registers. */ rtk_cardbus_setup(csc); /* * Map and establish the interrupt. */ csc->sc_ih = cardbus_intr_establish(cc, cf, csc->sc_intrline, IPL_NET, rtk_intr, sc); if (csc->sc_ih == NULL) { printf("%s: unable to establish interrupt at %d\n", sc->sc_dev.dv_xname, csc->sc_intrline); Cardbus_function_disable(csc->sc_ct); return (1); } printf("%s: interrupting at %d\n", sc->sc_dev.dv_xname, csc->sc_intrline); return (0); } void rtk_cardbus_disable(sc) struct rtk_softc *sc; { struct rtk_cardbus_softc *csc = (void *) sc; cardbus_devfunc_t ct = csc->sc_ct; cardbus_chipset_tag_t cc = ct->ct_cc; cardbus_function_tag_t cf = ct->ct_cf; /* Unhook the interrupt handler. */ cardbus_intr_disestablish(cc, cf, csc->sc_ih); /* Power down the socket. */ Cardbus_function_disable(ct); } void rtk_cardbus_power(sc, why) struct rtk_softc *sc; int why; { struct rtk_cardbus_softc *csc = (void *) sc; if (why == PWR_RESUME) { /* * Give the PCI configuration registers a kick * in the head. */ #ifdef DIAGNOSTIC if (RTK_IS_ENABLED(sc) == 0) panic("rtk_cardbus_power"); #endif rtk_cardbus_setup(csc); } }