/* $NetBSD: if_rtw_pci.c,v 1.18 2010/03/04 22:57:37 dyoung Exp $ */ /*- * Copyright (c) 1998, 1999, 2000, 2002 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, * NASA Ames Research Center; Charles M. Hannum; and David Young. * * 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. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 THE FOUNDATION OR CONTRIBUTORS * 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. */ /* * PCI bus front-end for the Realtek RTL8180 802.11 MAC/BBP chip. * * Derived from the ADMtek ADM8211 PCI bus front-end. * * Derived from the ``Tulip'' PCI bus front-end. */ #include __KERNEL_RCSID(0, "$NetBSD: if_rtw_pci.c,v 1.18 2010/03/04 22:57:37 dyoung Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include /* * PCI configuration space registers used by the RTL8180. */ #define RTW_PCI_IOBA 0x10 /* i/o mapped base */ #define RTW_PCI_MMBA 0x14 /* memory mapped base */ struct rtw_pci_softc { struct rtw_softc psc_rtw; /* real RTL8180 softc */ pci_intr_handle_t psc_ih; /* interrupt handle */ void *psc_intrcookie; pci_chipset_tag_t psc_pc; /* our PCI chipset */ pcitag_t psc_pcitag; /* our PCI tag */ }; static int rtw_pci_match(device_t, cfdata_t, void *); static void rtw_pci_attach(device_t, device_t, void *); static int rtw_pci_detach(device_t, int); CFATTACH_DECL_NEW(rtw_pci, sizeof(struct rtw_pci_softc), rtw_pci_match, rtw_pci_attach, rtw_pci_detach, NULL); static bool rtw_pci_resume(device_t, const pmf_qual_t *); static bool rtw_pci_suspend(device_t, const pmf_qual_t *); static const struct rtw_pci_product { u_int32_t app_vendor; /* PCI vendor ID */ u_int32_t app_product; /* PCI product ID */ const char *app_product_name; } rtw_pci_products[] = { { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8180, "Realtek RTL8180 802.11 MAC/BBP" }, { PCI_VENDOR_BELKIN, PCI_PRODUCT_BELKIN_F5D6001, "Belkin F5D6001" }, { 0, 0, NULL }, }; static const struct rtw_pci_product * rtw_pci_lookup(const struct pci_attach_args *pa) { const struct rtw_pci_product *app; for (app = rtw_pci_products; app->app_product_name != NULL; app++) { if (PCI_VENDOR(pa->pa_id) == app->app_vendor && PCI_PRODUCT(pa->pa_id) == app->app_product) return (app); } return (NULL); } static int rtw_pci_match(device_t parent, cfdata_t match, void *aux) { struct pci_attach_args *pa = aux; if (rtw_pci_lookup(pa) != NULL) return (1); return (0); } static void rtw_pci_attach(device_t parent, device_t self, void *aux) { struct rtw_pci_softc *psc = device_private(self); struct rtw_softc *sc = &psc->psc_rtw; struct rtw_regs *regs = &sc->sc_regs; struct pci_attach_args *pa = aux; pci_chipset_tag_t pc = pa->pa_pc; const char *intrstr = NULL; const struct rtw_pci_product *app; int error; sc->sc_dev = self; psc->psc_pc = pa->pa_pc; psc->psc_pcitag = pa->pa_tag; app = rtw_pci_lookup(pa); if (app == NULL) { printf("\n"); panic("rtw_pci_attach: impossible"); } /* * Get revision info, and set some chip-specific variables. */ sc->sc_rev = PCI_REVISION(pa->pa_class); aprint_normal(": %s, revision %d.%d\n", app->app_product_name, (sc->sc_rev >> 4) & 0xf, sc->sc_rev & 0xf); /* power up chip */ if ((error = pci_activate(pa->pa_pc, pa->pa_tag, self, NULL)) != 0 && error != EOPNOTSUPP) { aprint_error_dev(self, "cannot activate %d\n", error); return; } /* * Map the device. */ if (pci_mapreg_map(pa, RTW_PCI_MMBA, PCI_MAPREG_TYPE_MEM|PCI_MAPREG_MEM_TYPE_32BIT, 0, ®s->r_bt, ®s->r_bh, NULL, ®s->r_sz) == 0) ; else if (pci_mapreg_map(pa, RTW_PCI_IOBA, PCI_MAPREG_TYPE_IO, 0, ®s->r_bt, ®s->r_bh, NULL, ®s->r_sz) == 0) ; else { aprint_error_dev(self, "unable to map device registers\n"); return; } sc->sc_dmat = pa->pa_dmat; /* * Make sure bus mastering is enabled. */ pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG) | PCI_COMMAND_MASTER_ENABLE); /* * Map and establish our interrupt. */ if (pci_intr_map(pa, &psc->psc_ih)) { aprint_error_dev(self, "unable to map interrupt\n"); return; } intrstr = pci_intr_string(pc, psc->psc_ih); psc->psc_intrcookie = pci_intr_establish(pc, psc->psc_ih, IPL_NET, rtw_intr, sc); if (psc->psc_intrcookie == NULL) { aprint_error_dev(self, "unable to establish interrupt"); if (intrstr != NULL) aprint_error(" at %s", intrstr); aprint_error("\n"); return; } aprint_normal_dev(self, "interrupting at %s\n", intrstr); /* * Finish off the attach. */ rtw_attach(sc); if (pmf_device_register(sc->sc_dev, rtw_pci_suspend, rtw_pci_resume)) { pmf_class_network_register(self, &sc->sc_if); /* * Power down the socket. */ pmf_device_suspend(sc->sc_dev, &sc->sc_qual); } else aprint_error_dev(sc->sc_dev, "couldn't establish power handler\n"); } static int rtw_pci_detach(device_t self, int flags) { struct rtw_pci_softc *psc = device_private(self); struct rtw_softc *sc = &psc->psc_rtw; struct rtw_regs *regs = &sc->sc_regs; int rc; if ((rc = rtw_detach(sc)) != 0) return rc; if (psc->psc_intrcookie != NULL) pci_intr_disestablish(psc->psc_pc, psc->psc_intrcookie); bus_space_unmap(regs->r_bt, regs->r_bh, regs->r_sz); return 0; } static bool rtw_pci_resume(device_t self, const pmf_qual_t *qual) { struct rtw_pci_softc *psc = device_private(self); struct rtw_softc *sc = &psc->psc_rtw; /* Establish the interrupt. */ psc->psc_intrcookie = pci_intr_establish(psc->psc_pc, psc->psc_ih, IPL_NET, rtw_intr, sc); if (psc->psc_intrcookie == NULL) { aprint_error_dev(sc->sc_dev, "unable to establish interrupt\n"); return false; } return rtw_resume(self, qual); } static bool rtw_pci_suspend(device_t self, const pmf_qual_t *qual) { struct rtw_pci_softc *psc = device_private(self); if (!rtw_suspend(self, qual)) return false; /* Unhook the interrupt handler. */ pci_intr_disestablish(psc->psc_pc, psc->psc_intrcookie); psc->psc_intrcookie = NULL; return true; }