ohci_pci.c revision 1.20
1/* $NetBSD: ohci_pci.c,v 1.20 2001/11/13 07:48:46 lukem 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 1.20 2001/11/13 07:48:46 lukem 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 78struct cfattach ohci_pci_ca = { 79 sizeof(struct ohci_pci_softc), ohci_pci_match, ohci_pci_attach, 80 ohci_pci_detach, ohci_activate 81}; 82 83int 84ohci_pci_match(struct device *parent, struct cfdata *match, void *aux) 85{ 86 struct pci_attach_args *pa = (struct pci_attach_args *) aux; 87 88 if (PCI_CLASS(pa->pa_class) == PCI_CLASS_SERIALBUS && 89 PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_SERIALBUS_USB && 90 PCI_INTERFACE(pa->pa_class) == PCI_INTERFACE_OHCI) 91 return (1); 92 93 return (0); 94} 95 96void 97ohci_pci_attach(struct device *parent, struct device *self, void *aux) 98{ 99 struct ohci_pci_softc *sc = (struct ohci_pci_softc *)self; 100 struct pci_attach_args *pa = (struct pci_attach_args *)aux; 101 pci_chipset_tag_t pc = pa->pa_pc; 102 pcitag_t tag = pa->pa_tag; 103 char const *intrstr; 104 pci_intr_handle_t ih; 105 pcireg_t csr; 106 char devinfo[256]; 107 usbd_status r; 108 char *vendor; 109 char *devname = sc->sc.sc_bus.bdev.dv_xname; 110 111 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo); 112 printf(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class)); 113 114 /* Map I/O registers */ 115 if (pci_mapreg_map(pa, PCI_CBMEM, PCI_MAPREG_TYPE_MEM, 0, 116 &sc->sc.iot, &sc->sc.ioh, NULL, &sc->sc.sc_size)) { 117 printf("%s: can't map mem space\n", devname); 118 return; 119 } 120 121 /* Disable interrupts, so we don't get any spurious ones. */ 122 bus_space_write_4(sc->sc.iot, sc->sc.ioh, OHCI_INTERRUPT_DISABLE, 123 OHCI_ALL_INTRS); 124 125 sc->sc_pc = pc; 126 sc->sc.sc_bus.dmatag = pa->pa_dmat; 127 128 /* Enable the device. */ 129 csr = pci_conf_read(pc, tag, PCI_COMMAND_STATUS_REG); 130 pci_conf_write(pc, tag, PCI_COMMAND_STATUS_REG, 131 csr | PCI_COMMAND_MASTER_ENABLE); 132 133 /* Map and establish the interrupt. */ 134 if (pci_intr_map(pa, &ih)) { 135 printf("%s: couldn't map interrupt\n", devname); 136 return; 137 } 138 intrstr = pci_intr_string(pc, ih); 139 sc->sc_ih = pci_intr_establish(pc, ih, IPL_USB, ohci_intr, sc); 140 if (sc->sc_ih == NULL) { 141 printf("%s: couldn't establish interrupt", devname); 142 if (intrstr != NULL) 143 printf(" at %s", intrstr); 144 printf("\n"); 145 return; 146 } 147 printf("%s: interrupting at %s\n", devname, intrstr); 148 149 /* Figure out vendor for root hub descriptor. */ 150 vendor = pci_findvendor(pa->pa_id); 151 sc->sc.sc_id_vendor = PCI_VENDOR(pa->pa_id); 152 if (vendor) 153 strncpy(sc->sc.sc_vendor, vendor, 154 sizeof(sc->sc.sc_vendor) - 1); 155 else 156 sprintf(sc->sc.sc_vendor, "vendor 0x%04x", 157 PCI_VENDOR(pa->pa_id)); 158 159 r = ohci_init(&sc->sc); 160 if (r != USBD_NORMAL_COMPLETION) { 161 printf("%s: init failed, error=%d\n", devname, r); 162 return; 163 } 164 165#if NEHCI > 0 166 usb_pci_add(&sc->sc_pci, pa, &sc->sc.sc_bus); 167#endif 168 169 /* Attach usb device. */ 170 sc->sc.sc_child = config_found((void *)sc, &sc->sc.sc_bus, 171 usbctlprint); 172} 173 174int 175ohci_pci_detach(device_ptr_t self, int flags) 176{ 177 struct ohci_pci_softc *sc = (struct ohci_pci_softc *)self; 178 int rv; 179 180 rv = ohci_detach(&sc->sc, flags); 181 if (rv) 182 return (rv); 183 if (sc->sc_ih != NULL) { 184 pci_intr_disestablish(sc->sc_pc, sc->sc_ih); 185 sc->sc_ih = NULL; 186 } 187 if (sc->sc.sc_size) { 188 bus_space_unmap(sc->sc.iot, sc->sc.ioh, sc->sc.sc_size); 189 sc->sc.sc_size = 0; 190 } 191#if NEHCI > 0 192 usb_pci_rem(&sc->sc_pci); 193#endif 194 return (0); 195} 196