ohci_pci.c revision 1.30
1/* $NetBSD: ohci_pci.c,v 1.30 2006/10/12 01:31:32 christos 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/cdefs.h> 41__KERNEL_RCSID(0, "$NetBSD: ohci_pci.c,v 1.30 2006/10/12 01:31:32 christos Exp $"); 42 43#include "ehci.h" 44 45#include <sys/param.h> 46#include <sys/systm.h> 47#include <sys/kernel.h> 48#include <sys/device.h> 49#include <sys/proc.h> 50#include <sys/queue.h> 51 52#include <machine/bus.h> 53 54#include <dev/pci/pcivar.h> 55#include <dev/pci/usb_pci.h> 56 57#include <dev/usb/usb.h> 58#include <dev/usb/usbdi.h> 59#include <dev/usb/usbdivar.h> 60#include <dev/usb/usb_mem.h> 61 62#include <dev/usb/ohcireg.h> 63#include <dev/usb/ohcivar.h> 64 65struct ohci_pci_softc { 66 ohci_softc_t sc; 67#if NEHCI > 0 68 struct usb_pci sc_pci; 69#endif 70 pci_chipset_tag_t sc_pc; 71 void *sc_ih; /* interrupt vectoring */ 72}; 73 74static int 75ohci_pci_match(struct device *parent __unused, struct cfdata *match __unused, 76 void *aux) 77{ 78 struct pci_attach_args *pa = (struct pci_attach_args *) aux; 79 80 if (PCI_CLASS(pa->pa_class) == PCI_CLASS_SERIALBUS && 81 PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_SERIALBUS_USB && 82 PCI_INTERFACE(pa->pa_class) == PCI_INTERFACE_OHCI) 83 return (1); 84 85 return (0); 86} 87 88static void 89ohci_pci_attach(struct device *parent __unused, struct device *self, void *aux) 90{ 91 struct ohci_pci_softc *sc = (struct ohci_pci_softc *)self; 92 struct pci_attach_args *pa = (struct pci_attach_args *)aux; 93 pci_chipset_tag_t pc = pa->pa_pc; 94 pcitag_t tag = pa->pa_tag; 95 char const *intrstr; 96 pci_intr_handle_t ih; 97 pcireg_t csr; 98 char devinfo[256]; 99 usbd_status r; 100 const char *vendor; 101 const char *devname = sc->sc.sc_bus.bdev.dv_xname; 102 103 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo)); 104 printf(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class)); 105 106 /* Map I/O registers */ 107 if (pci_mapreg_map(pa, PCI_CBMEM, PCI_MAPREG_TYPE_MEM, 0, 108 &sc->sc.iot, &sc->sc.ioh, NULL, &sc->sc.sc_size)) { 109 printf("%s: can't map mem space\n", devname); 110 return; 111 } 112 113 /* Disable interrupts, so we don't get any spurious ones. */ 114 bus_space_write_4(sc->sc.iot, sc->sc.ioh, OHCI_INTERRUPT_DISABLE, 115 OHCI_ALL_INTRS); 116 117 sc->sc_pc = pc; 118 sc->sc.sc_bus.dmatag = pa->pa_dmat; 119 120 /* Enable the device. */ 121 csr = pci_conf_read(pc, tag, PCI_COMMAND_STATUS_REG); 122 pci_conf_write(pc, tag, PCI_COMMAND_STATUS_REG, 123 csr | PCI_COMMAND_MASTER_ENABLE); 124 125 /* Map and establish the interrupt. */ 126 if (pci_intr_map(pa, &ih)) { 127 printf("%s: couldn't map interrupt\n", devname); 128 return; 129 } 130 intrstr = pci_intr_string(pc, ih); 131 sc->sc_ih = pci_intr_establish(pc, ih, IPL_USB, ohci_intr, sc); 132 if (sc->sc_ih == NULL) { 133 printf("%s: couldn't establish interrupt", devname); 134 if (intrstr != NULL) 135 printf(" at %s", intrstr); 136 printf("\n"); 137 return; 138 } 139 printf("%s: interrupting at %s\n", devname, intrstr); 140 141 /* Figure out vendor for root hub descriptor. */ 142 vendor = pci_findvendor(pa->pa_id); 143 sc->sc.sc_id_vendor = PCI_VENDOR(pa->pa_id); 144 if (vendor) 145 strlcpy(sc->sc.sc_vendor, vendor, sizeof(sc->sc.sc_vendor)); 146 else 147 snprintf(sc->sc.sc_vendor, sizeof(sc->sc.sc_vendor), 148 "vendor 0x%04x", 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#if NEHCI > 0 157 usb_pci_add(&sc->sc_pci, pa, &sc->sc.sc_bus); 158#endif 159 160 /* Attach usb device. */ 161 sc->sc.sc_child = config_found((void *)sc, &sc->sc.sc_bus, 162 usbctlprint); 163} 164 165static int 166ohci_pci_detach(device_ptr_t self, int flags) 167{ 168 struct ohci_pci_softc *sc = (struct ohci_pci_softc *)self; 169 int rv; 170 171 rv = ohci_detach(&sc->sc, flags); 172 if (rv) 173 return (rv); 174 if (sc->sc_ih != NULL) { 175 pci_intr_disestablish(sc->sc_pc, sc->sc_ih); 176 sc->sc_ih = NULL; 177 } 178 if (sc->sc.sc_size) { 179 bus_space_unmap(sc->sc.iot, sc->sc.ioh, sc->sc.sc_size); 180 sc->sc.sc_size = 0; 181 } 182#if NEHCI > 0 183 usb_pci_rem(&sc->sc_pci); 184#endif 185 return (0); 186} 187 188CFATTACH_DECL(ohci_pci, sizeof(struct ohci_pci_softc), 189 ohci_pci_match, ohci_pci_attach, ohci_pci_detach, ohci_activate); 190