ohci_pci.c revision 1.26
1/* $NetBSD: ohci_pci.c,v 1.26 2004/08/02 18:43:38 mycroft 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 1.26 2004/08/02 18:43:38 mycroft 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 65int ohci_pci_match(struct device *, struct cfdata *, void *); 66void ohci_pci_attach(struct device *, struct device *, void *); 67int ohci_pci_detach(device_ptr_t, int); 68 69struct ohci_pci_softc { 70 ohci_softc_t sc; 71#if NEHCI > 0 72 struct usb_pci sc_pci; 73#endif 74 pci_chipset_tag_t sc_pc; 75 void *sc_ih; /* interrupt vectoring */ 76}; 77 78CFATTACH_DECL(ohci_pci, sizeof(struct ohci_pci_softc), 79 ohci_pci_match, ohci_pci_attach, ohci_pci_detach, ohci_activate); 80 81int 82ohci_pci_match(struct device *parent, struct cfdata *match, void *aux) 83{ 84 struct pci_attach_args *pa = (struct pci_attach_args *) aux; 85 86 if (PCI_CLASS(pa->pa_class) == PCI_CLASS_SERIALBUS && 87 PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_SERIALBUS_USB && 88 PCI_INTERFACE(pa->pa_class) == PCI_INTERFACE_OHCI) 89 return (1); 90 91 return (0); 92} 93 94void 95ohci_pci_attach(struct device *parent, struct device *self, void *aux) 96{ 97 struct ohci_pci_softc *sc = (struct ohci_pci_softc *)self; 98 struct pci_attach_args *pa = (struct pci_attach_args *)aux; 99 pci_chipset_tag_t pc = pa->pa_pc; 100 pcitag_t tag = pa->pa_tag; 101 char const *intrstr; 102 pci_intr_handle_t ih; 103 pcireg_t csr; 104 char devinfo[256]; 105 usbd_status r; 106 const char *vendor; 107 const char *devname = sc->sc.sc_bus.bdev.dv_xname; 108 109 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo)); 110 printf(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class)); 111 112 /* Map I/O registers */ 113 if (pci_mapreg_map(pa, PCI_CBMEM, PCI_MAPREG_TYPE_MEM, 0, 114 &sc->sc.iot, &sc->sc.ioh, NULL, &sc->sc.sc_size)) { 115 printf("%s: can't map mem space\n", devname); 116 return; 117 } 118 119 /* Disable interrupts, so we don't get any spurious ones. */ 120 bus_space_write_4(sc->sc.iot, sc->sc.ioh, OHCI_INTERRUPT_DISABLE, 121 OHCI_ALL_INTRS); 122 123 sc->sc_pc = pc; 124 sc->sc.sc_bus.dmatag = pa->pa_dmat; 125 126 /* Enable the device. */ 127 csr = pci_conf_read(pc, tag, PCI_COMMAND_STATUS_REG); 128 pci_conf_write(pc, tag, PCI_COMMAND_STATUS_REG, 129 csr | PCI_COMMAND_MASTER_ENABLE); 130 131 /* Map and establish the interrupt. */ 132 if (pci_intr_map(pa, &ih)) { 133 printf("%s: couldn't map interrupt\n", devname); 134 return; 135 } 136 intrstr = pci_intr_string(pc, ih); 137 sc->sc_ih = pci_intr_establish(pc, ih, IPL_USB, ohci_intr, sc); 138 if (sc->sc_ih == NULL) { 139 printf("%s: couldn't establish interrupt", devname); 140 if (intrstr != NULL) 141 printf(" at %s", intrstr); 142 printf("\n"); 143 return; 144 } 145 printf("%s: interrupting at %s\n", devname, intrstr); 146 147 /* Figure out vendor for root hub descriptor. */ 148 vendor = pci_findvendor(pa->pa_id); 149 sc->sc.sc_id_vendor = PCI_VENDOR(pa->pa_id); 150 if (vendor) 151 strlcpy(sc->sc.sc_vendor, vendor, sizeof(sc->sc.sc_vendor)); 152 else 153 snprintf(sc->sc.sc_vendor, sizeof(sc->sc.sc_vendor), 154 "vendor 0x%04x", PCI_VENDOR(pa->pa_id)); 155 156 r = ohci_init(&sc->sc); 157 if (r != USBD_NORMAL_COMPLETION) { 158 printf("%s: init failed, error=%d\n", devname, r); 159 return; 160 } 161 162#if NEHCI > 0 163 usb_pci_add(&sc->sc_pci, pa, &sc->sc.sc_bus); 164#endif 165 166 /* Attach usb device. */ 167 sc->sc.sc_child = config_found((void *)sc, &sc->sc.sc_bus, 168 usbctlprint); 169} 170 171int 172ohci_pci_detach(device_ptr_t self, int flags) 173{ 174 struct ohci_pci_softc *sc = (struct ohci_pci_softc *)self; 175 int rv; 176 177 rv = ohci_detach(&sc->sc, flags); 178 if (rv) 179 return (rv); 180 if (sc->sc_ih != NULL) { 181 pci_intr_disestablish(sc->sc_pc, sc->sc_ih); 182 sc->sc_ih = NULL; 183 } 184 if (sc->sc.sc_size) { 185 bus_space_unmap(sc->sc.iot, sc->sc.ioh, sc->sc.sc_size); 186 sc->sc.sc_size = 0; 187 } 188#if NEHCI > 0 189 usb_pci_rem(&sc->sc_pci); 190#endif 191 return (0); 192} 193