ohci_pci.c revision 1.4
1/* $NetBSD: ohci_pci.c,v 1.4 1998/07/25 23:23:02 augustss Exp $ */ 2 3/* 4 * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * Author: Lennart Augustsson <augustss@carlstedt.se> 8 * Carlstedt Research & Technology 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39/* 40 * USB Open Host Controller driver. 41 * 42 * OHCI spec: http://www.intel.com/design/usb/ohci11d.pdf 43 * USB spec: http://www.teleport.com/cgi-bin/mailmerge.cgi/~usb/cgiform.tpl 44 */ 45 46#include <sys/param.h> 47#include <sys/systm.h> 48#include <sys/kernel.h> 49#include <sys/device.h> 50#include <sys/proc.h> 51#include <sys/queue.h> 52 53#include <machine/bus.h> 54 55#include <dev/pci/pcivar.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 __P((struct device *, struct cfdata *, void *)); 66void ohci_pci_attach __P((struct device *, struct device *, void *)); 67 68struct cfattach ohci_pci_ca = { 69 sizeof(struct ohci_softc), ohci_pci_match, ohci_pci_attach 70}; 71 72int 73ohci_pci_match(parent, match, aux) 74 struct device *parent; 75 struct cfdata *match; 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 88void 89ohci_pci_attach(parent, self, aux) 90 struct device *parent; 91 struct device *self; 92 void *aux; 93{ 94 struct ohci_softc *sc = (struct ohci_softc *)self; 95 struct pci_attach_args *pa = (struct pci_attach_args *)aux; 96 pci_chipset_tag_t pc = pa->pa_pc; 97 char const *intrstr; 98 pci_intr_handle_t ih; 99 pcireg_t csr; 100 char devinfo[256]; 101 usbd_status r; 102 char *vendor; 103 104 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo); 105 printf(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class)); 106 107 /* Map I/O registers */ 108 if (pci_mapreg_map(pa, PCI_CBMEM, PCI_MAPREG_TYPE_MEM, 0, 109 &sc->iot, &sc->ioh, NULL, NULL)) { 110 printf("%s: can't map mem space\n", sc->sc_bus.bdev.dv_xname); 111 return; 112 } 113 114 sc->sc_dmatag = pa->pa_dmat; 115 116 /* Enable the device. */ 117 csr = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 118 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 119 csr | PCI_COMMAND_MASTER_ENABLE); 120 121 /* Map and establish the interrupt. */ 122 if (pci_intr_map(pc, pa->pa_intrtag, pa->pa_intrpin, 123 pa->pa_intrline, &ih)) { 124 printf("%s: couldn't map interrupt\n", sc->sc_bus.bdev.dv_xname); 125 return; 126 } 127 intrstr = pci_intr_string(pc, ih); 128 sc->sc_ih = pci_intr_establish(pc, ih, IPL_USB, ohci_intr, sc); 129 if (sc->sc_ih == NULL) { 130 printf("%s: couldn't establish interrupt", 131 sc->sc_bus.bdev.dv_xname); 132 if (intrstr != NULL) 133 printf(" at %s", intrstr); 134 printf("\n"); 135 return; 136 } 137 printf("%s: interrupting at %s\n", sc->sc_bus.bdev.dv_xname, intrstr); 138 139 /* Figure out vendor for root hub descriptor. */ 140 vendor = pci_findvendor(pa->pa_id); 141 if (vendor) 142 strncpy(sc->sc_vendor, vendor, sizeof(sc->sc_vendor)); 143 else 144 sprintf(sc->sc_vendor, "vendor 0x%04x", PCI_VENDOR(pa->pa_id)); 145 146 r = ohci_init(sc); 147 if (r != USBD_NORMAL_COMPLETION) { 148 printf("%s: init failed, error=%d\n", sc->sc_bus.bdev.dv_xname, 149 r); 150 return; 151 } 152 153 /* Attach usb device. */ 154 config_found((void *)sc, &sc->sc_bus, usbctlprint); 155} 156