/* $OpenBSD: uhci_pci.c,v 1.11 2001/06/12 19:11:59 mickey Exp $ */ /* $NetBSD: uhci_pci.c,v 1.14 2000/01/25 11:26:06 augustss Exp $ */ /* * Copyright (c) 1998 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Lennart Augustsson (lennart@augustsson.net) at * Carlstedt Research & Technology. * * 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 #include #include #include #include #include #include #include #include #include #include #include #include #include int uhci_pci_match __P((struct device *, void *, void *)); void uhci_pci_attach __P((struct device *, struct device *, void *)); int uhci_pci_detach __P((device_ptr_t, int)); struct uhci_pci_softc { uhci_softc_t sc; pci_chipset_tag_t sc_pc; void *sc_ih; /* interrupt vectoring */ }; struct cfattach uhci_pci_ca = { sizeof(struct uhci_pci_softc), uhci_pci_match, uhci_pci_attach, uhci_pci_detach, uhci_activate }; int uhci_pci_match(parent, match, aux) struct device *parent; void *match, *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_UHCI) return (1); return (0); } void uhci_pci_attach(parent, self, aux) struct device *parent; struct device *self; void *aux; { struct uhci_pci_softc *sc = (struct uhci_pci_softc *)self; struct pci_attach_args *pa = (struct pci_attach_args *)aux; pci_chipset_tag_t pc = pa->pa_pc; char const *intrstr; pci_intr_handle_t ih; pcireg_t csr, legsup; usbd_status r; /* Map I/O registers */ if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0, &sc->sc.iot, &sc->sc.ioh, NULL, &sc->sc.sc_size, 0)) { printf(": can't map i/o space\n"); return; } /* Disable interrupts, so we don't get any spurious ones. */ bus_space_write_2(sc->sc.iot, sc->sc.ioh, UHCI_INTR, 0); sc->sc_pc = pc; sc->sc.sc_bus.dmatag = pa->pa_dmat; /* Enable the device. */ csr = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, csr | PCI_COMMAND_MASTER_ENABLE); /* Verify that the PIRQD enable bit is set, some BIOS's don't do that*/ legsup = pci_conf_read(pc, pa->pa_tag, PCI_LEGSUP); if (!(legsup & PCI_LEGSUP_USBPIRQDEN)) { legsup = PCI_LEGSUP_USBPIRQDEN; pci_conf_write(pc, pa->pa_tag, PCI_LEGSUP, legsup); } switch(pci_conf_read(pc, pa->pa_tag, PCI_USBREV) & PCI_USBREV_MASK) { case PCI_USBREV_PRE_1_0: sc->sc.sc_bus.usbrev = USBREV_PRE_1_0; break; case PCI_USBREV_1_0: sc->sc.sc_bus.usbrev = USBREV_1_0; break; case PCI_USBREV_1_1: sc->sc.sc_bus.usbrev = USBREV_1_1; break; default: sc->sc.sc_bus.usbrev = USBREV_UNKNOWN; break; } uhci_run(&sc->sc, 0); /* stop the controller */ /* disable interrupts */ bus_space_barrier(sc->sc.iot, sc->sc.ioh, 0, sc->sc.sc_size, BUS_SPACE_BARRIER_READ|BUS_SPACE_BARRIER_WRITE); bus_space_write_2(sc->sc.iot, sc->sc.ioh, UHCI_INTR, 0); /* Map and establish the interrupt. */ if (pci_intr_map(pc, pa->pa_intrtag, pa->pa_intrpin, pa->pa_intrline, &ih)) { printf(": couldn't map interrupt\n"); return; } intrstr = pci_intr_string(pc, ih); sc->sc_ih = pci_intr_establish(pc, ih, IPL_USB, uhci_intr, sc, sc->sc.sc_bus.bdev.dv_xname); if (sc->sc_ih == NULL) { printf(": couldn't establish interrupt"); if (intrstr != NULL) printf(" at %s", intrstr); printf("\n"); return; } printf(": %s\n", intrstr); r = uhci_init(&sc->sc); if (r != USBD_NORMAL_COMPLETION) { printf(": init failed, error=%d\n", r); return; } /* Attach usb device. */ sc->sc.sc_child = config_found((void *)sc, &sc->sc.sc_bus, usbctlprint); } int uhci_pci_detach(self, flags) device_ptr_t self; int flags; { struct uhci_pci_softc *sc = (struct uhci_pci_softc *)self; int rv; rv = uhci_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); }