/* $NetBSD: ehci_pci.c,v 1.17 2005/02/27 00:27:32 perry Exp $ */ /* * Copyright (c) 2001, 2002 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Lennart Augustsson (lennart@augustsson.net). * * 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 the NetBSD * Foundation, Inc. and its contributors. * 4. Neither the name of The NetBSD Foundation nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * 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. */ #include __KERNEL_RCSID(0, "$NetBSD: ehci_pci.c,v 1.17 2005/02/27 00:27:32 perry Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef EHCI_DEBUG #define DPRINTF(x) if (ehcidebug) printf x extern int ehcidebug; #else #define DPRINTF(x) #endif int ehci_pci_match(struct device *, struct cfdata *, void *); void ehci_pci_attach(struct device *, struct device *, void *); int ehci_pci_detach(device_ptr_t, int); struct ehci_pci_softc { ehci_softc_t sc; pci_chipset_tag_t sc_pc; pcitag_t sc_tag; void *sc_ih; /* interrupt vectoring */ }; CFATTACH_DECL(ehci_pci, sizeof(struct ehci_pci_softc), ehci_pci_match, ehci_pci_attach, ehci_pci_detach, ehci_activate); int ehci_pci_match(struct device *parent, struct cfdata *match, void *aux) { struct pci_attach_args *pa = (struct pci_attach_args *) aux; if (PCI_CLASS(pa->pa_class) == PCI_CLASS_SERIALBUS && PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_SERIALBUS_USB && PCI_INTERFACE(pa->pa_class) == PCI_INTERFACE_EHCI) return (1); return (0); } void ehci_pci_attach(struct device *parent, struct device *self, void *aux) { struct ehci_pci_softc *sc = (struct ehci_pci_softc *)self; struct pci_attach_args *pa = (struct pci_attach_args *)aux; pci_chipset_tag_t pc = pa->pa_pc; pcitag_t tag = pa->pa_tag; char const *intrstr; pci_intr_handle_t ih; pcireg_t csr; const char *vendor; const char *devname = sc->sc.sc_bus.bdev.dv_xname; char devinfo[256]; usbd_status r; int ncomp; struct usb_pci *up; aprint_naive(": USB controller\n"); pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo)); aprint_normal(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class)); /* Map I/O registers */ if (pci_mapreg_map(pa, PCI_CBMEM, PCI_MAPREG_TYPE_MEM, 0, &sc->sc.iot, &sc->sc.ioh, NULL, &sc->sc.sc_size)) { aprint_error("%s: can't map memory space\n", devname); return; } sc->sc_pc = pc; sc->sc_tag = tag; sc->sc.sc_bus.dmatag = pa->pa_dmat; /* Enable the device. */ csr = pci_conf_read(pc, tag, PCI_COMMAND_STATUS_REG); pci_conf_write(pc, tag, PCI_COMMAND_STATUS_REG, csr | PCI_COMMAND_MASTER_ENABLE); /* Disable interrupts, so we don't get any spurious ones. */ sc->sc.sc_offs = EREAD1(&sc->sc, EHCI_CAPLENGTH); DPRINTF(("%s: offs=%d\n", devname, sc->sc.sc_offs)); EOWRITE2(&sc->sc, EHCI_USBINTR, 0); /* Map and establish the interrupt. */ if (pci_intr_map(pa, &ih)) { aprint_error("%s: couldn't map interrupt\n", devname); return; } intrstr = pci_intr_string(pc, ih); sc->sc_ih = pci_intr_establish(pc, ih, IPL_USB, ehci_intr, sc); if (sc->sc_ih == NULL) { aprint_error("%s: couldn't establish interrupt", devname); if (intrstr != NULL) aprint_normal(" at %s", intrstr); aprint_normal("\n"); return; } aprint_normal("%s: interrupting at %s\n", devname, intrstr); switch(pci_conf_read(pc, tag, PCI_USBREV) & PCI_USBREV_MASK) { case PCI_USBREV_PRE_1_0: case PCI_USBREV_1_0: case PCI_USBREV_1_1: sc->sc.sc_bus.usbrev = USBREV_UNKNOWN; aprint_normal("%s: pre-2.0 USB rev\n", devname); return; case PCI_USBREV_2_0: sc->sc.sc_bus.usbrev = USBREV_2_0; break; default: sc->sc.sc_bus.usbrev = USBREV_UNKNOWN; break; } /* Figure out vendor for root hub descriptor. */ vendor = pci_findvendor(pa->pa_id); sc->sc.sc_id_vendor = PCI_VENDOR(pa->pa_id); if (vendor) strlcpy(sc->sc.sc_vendor, vendor, sizeof(sc->sc.sc_vendor)); else snprintf(sc->sc.sc_vendor, sizeof(sc->sc.sc_vendor), "vendor 0x%04x", PCI_VENDOR(pa->pa_id)); /* * Find companion controllers. According to the spec they always * have lower function numbers so they should be enumerated already. */ ncomp = 0; TAILQ_FOREACH(up, &ehci_pci_alldevs, next) { if (up->bus == pa->pa_bus && up->device == pa->pa_device) { DPRINTF(("ehci_pci_attach: companion %s\n", USBDEVNAME(up->usb->bdev))); sc->sc.sc_comps[ncomp++] = up->usb; if (ncomp >= EHCI_COMPANION_MAX) break; } } sc->sc.sc_ncomp = ncomp; r = ehci_init(&sc->sc); if (r != USBD_NORMAL_COMPLETION) { aprint_error("%s: init failed, error=%d\n", devname, r); return; } /* Attach usb device. */ sc->sc.sc_child = config_found((void *)sc, &sc->sc.sc_bus, usbctlprint); } int ehci_pci_detach(device_ptr_t self, int flags) { struct ehci_pci_softc *sc = (struct ehci_pci_softc *)self; int rv; rv = ehci_detach(&sc->sc, flags); if (rv) return (rv); if (sc->sc_ih != NULL) { pci_intr_disestablish(sc->sc_pc, sc->sc_ih); sc->sc_ih = NULL; } if (sc->sc.sc_size) { bus_space_unmap(sc->sc.iot, sc->sc.ioh, sc->sc.sc_size); sc->sc.sc_size = 0; } return (0); }