ohci_pci.c revision 1.18
1/* $NetBSD: ohci_pci.c,v 1.18 2000/12/28 22:59:14 sommerfeld Exp $ */ 2 3/* 4 * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Lennart Augustsson (lennart@augustsson.net) at 9 * Carlstedt Research & Technology. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40#include <sys/param.h> 41#include <sys/systm.h> 42#include <sys/kernel.h> 43#include <sys/device.h> 44#include <sys/proc.h> 45#include <sys/queue.h> 46 47#include <machine/bus.h> 48 49#include <dev/pci/pcivar.h> 50 51#include <dev/usb/usb.h> 52#include <dev/usb/usbdi.h> 53#include <dev/usb/usbdivar.h> 54#include <dev/usb/usb_mem.h> 55 56#include <dev/usb/ohcireg.h> 57#include <dev/usb/ohcivar.h> 58 59int ohci_pci_match(struct device *, struct cfdata *, void *); 60void ohci_pci_attach(struct device *, struct device *, void *); 61int ohci_pci_detach(device_ptr_t, int); 62 63struct ohci_pci_softc { 64 ohci_softc_t sc; 65 pci_chipset_tag_t sc_pc; 66 void *sc_ih; /* interrupt vectoring */ 67}; 68 69struct cfattach ohci_pci_ca = { 70 sizeof(struct ohci_pci_softc), ohci_pci_match, ohci_pci_attach, 71 ohci_pci_detach, ohci_activate 72}; 73 74int 75ohci_pci_match(struct device *parent, struct cfdata *match, void *aux) 76{ 77 struct pci_attach_args *pa = (struct pci_attach_args *) aux; 78 79 if (PCI_CLASS(pa->pa_class) == PCI_CLASS_SERIALBUS && 80 PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_SERIALBUS_USB && 81 PCI_INTERFACE(pa->pa_class) == PCI_INTERFACE_OHCI) 82 return (1); 83 84 return (0); 85} 86 87void 88ohci_pci_attach(struct device *parent, struct device *self, void *aux) 89{ 90 struct ohci_pci_softc *sc = (struct ohci_pci_softc *)self; 91 struct pci_attach_args *pa = (struct pci_attach_args *)aux; 92 pci_chipset_tag_t pc = pa->pa_pc; 93 pcitag_t tag = pa->pa_tag; 94 char const *intrstr; 95 pci_intr_handle_t ih; 96 pcireg_t csr; 97 char devinfo[256]; 98 usbd_status r; 99 char *vendor; 100 char *devname = sc->sc.sc_bus.bdev.dv_xname; 101 102 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo); 103 printf(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class)); 104 105 /* Map I/O registers */ 106 if (pci_mapreg_map(pa, PCI_CBMEM, PCI_MAPREG_TYPE_MEM, 0, 107 &sc->sc.iot, &sc->sc.ioh, NULL, &sc->sc.sc_size)) { 108 printf("%s: can't map mem space\n", devname); 109 return; 110 } 111 112 /* Disable interrupts, so we don't get any spurious ones. */ 113 bus_space_write_4(sc->sc.iot, sc->sc.ioh, OHCI_INTERRUPT_DISABLE, 114 OHCI_ALL_INTRS); 115 116 sc->sc_pc = pc; 117 sc->sc.sc_bus.dmatag = pa->pa_dmat; 118 119 /* Enable the device. */ 120 csr = pci_conf_read(pc, tag, PCI_COMMAND_STATUS_REG); 121 pci_conf_write(pc, tag, PCI_COMMAND_STATUS_REG, 122 csr | PCI_COMMAND_MASTER_ENABLE); 123 124 /* Map and establish the interrupt. */ 125 if (pci_intr_map(pa, &ih)) { 126 printf("%s: couldn't map interrupt\n", devname); 127 return; 128 } 129 intrstr = pci_intr_string(pc, ih); 130 sc->sc_ih = pci_intr_establish(pc, ih, IPL_USB, ohci_intr, sc); 131 if (sc->sc_ih == NULL) { 132 printf("%s: couldn't establish interrupt", devname); 133 if (intrstr != NULL) 134 printf(" at %s", intrstr); 135 printf("\n"); 136 return; 137 } 138 printf("%s: interrupting at %s\n", devname, intrstr); 139 140 /* Figure out vendor for root hub descriptor. */ 141 vendor = pci_findvendor(pa->pa_id); 142 sc->sc.sc_id_vendor = PCI_VENDOR(pa->pa_id); 143 if (vendor) 144 strncpy(sc->sc.sc_vendor, vendor, 145 sizeof(sc->sc.sc_vendor) - 1); 146 else 147 sprintf(sc->sc.sc_vendor, "vendor 0x%04x", 148 PCI_VENDOR(pa->pa_id)); 149 150 r = ohci_init(&sc->sc); 151 if (r != USBD_NORMAL_COMPLETION) { 152 printf("%s: init failed, error=%d\n", devname, r); 153 return; 154 } 155 156 /* Attach usb device. */ 157 sc->sc.sc_child = config_found((void *)sc, &sc->sc.sc_bus, 158 usbctlprint); 159} 160 161int 162ohci_pci_detach(device_ptr_t self, int flags) 163{ 164 struct ohci_pci_softc *sc = (struct ohci_pci_softc *)self; 165 int rv; 166 167 rv = ohci_detach(&sc->sc, flags); 168 if (rv) 169 return (rv); 170 if (sc->sc_ih != NULL) { 171 pci_intr_disestablish(sc->sc_pc, sc->sc_ih); 172 sc->sc_ih = NULL; 173 } 174 if (sc->sc.sc_size) { 175 bus_space_unmap(sc->sc.iot, sc->sc.ioh, sc->sc.sc_size); 176 sc->sc.sc_size = 0; 177 } 178 return (0); 179} 180