ohci_pci.c revision 1.11
1/* $NetBSD: ohci_pci.c,v 1.11 1999/09/04 22:00:32 augustss 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 (augustss@carlstedt.se) 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/* 41 * USB Open Host Controller driver. 42 * 43 * OHCI spec: http://www.intel.com/design/usb/ohci11d.pdf 44 * USB spec: http://www.teleport.com/cgi-bin/mailmerge.cgi/~usb/cgiform.tpl 45 */ 46 47#include <sys/param.h> 48#include <sys/systm.h> 49#include <sys/kernel.h> 50#include <sys/device.h> 51#include <sys/proc.h> 52#include <sys/queue.h> 53 54#include <machine/bus.h> 55 56#include <dev/pci/pcivar.h> 57 58#include <dev/usb/usb.h> 59#include <dev/usb/usbdi.h> 60#include <dev/usb/usbdivar.h> 61#include <dev/usb/usb_mem.h> 62 63#include <dev/usb/ohcireg.h> 64#include <dev/usb/ohcivar.h> 65 66int ohci_pci_match __P((struct device *, struct cfdata *, void *)); 67void ohci_pci_attach __P((struct device *, struct device *, void *)); 68 69struct cfattach ohci_pci_ca = { 70 sizeof(struct ohci_softc), ohci_pci_match, ohci_pci_attach 71}; 72 73int 74ohci_pci_match(parent, match, aux) 75 struct device *parent; 76 struct cfdata *match; 77 void *aux; 78{ 79 struct pci_attach_args *pa = (struct pci_attach_args *) aux; 80 81 if (PCI_CLASS(pa->pa_class) == PCI_CLASS_SERIALBUS && 82 PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_SERIALBUS_USB && 83 PCI_INTERFACE(pa->pa_class) == PCI_INTERFACE_OHCI) 84 return 1; 85 86 return 0; 87} 88 89void 90ohci_pci_attach(parent, self, aux) 91 struct device *parent; 92 struct device *self; 93 void *aux; 94{ 95 struct ohci_softc *sc = (struct ohci_softc *)self; 96 struct pci_attach_args *pa = (struct pci_attach_args *)aux; 97 pci_chipset_tag_t pc = pa->pa_pc; 98 char const *intrstr; 99 pci_intr_handle_t ih; 100 pcireg_t csr; 101 char devinfo[256]; 102 usbd_status r; 103 char *vendor; 104 105 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo); 106 printf(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class)); 107 108 /* Map I/O registers */ 109 if (pci_mapreg_map(pa, PCI_CBMEM, PCI_MAPREG_TYPE_MEM, 0, 110 &sc->iot, &sc->ioh, NULL, NULL)) { 111 printf("%s: can't map mem space\n", sc->sc_bus.bdev.dv_xname); 112 return; 113 } 114 115 /* Disable interrupts, so we don't can any spurious ones. */ 116 bus_space_write_4(sc->iot, sc->ioh, OHCI_INTERRUPT_DISABLE, OHCI_ALL_INTRS); 117 118 sc->sc_dmatag = pa->pa_dmat; 119 120 /* Enable the device. */ 121 csr = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 122 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 123 csr | PCI_COMMAND_MASTER_ENABLE); 124 125 /* Map and establish the interrupt. */ 126 if (pci_intr_map(pc, pa->pa_intrtag, pa->pa_intrpin, 127 pa->pa_intrline, &ih)) { 128 printf("%s: couldn't map interrupt\n", 129 sc->sc_bus.bdev.dv_xname); 130 return; 131 } 132 intrstr = pci_intr_string(pc, ih); 133 sc->sc_ih = pci_intr_establish(pc, ih, IPL_USB, ohci_intr, sc); 134 if (sc->sc_ih == NULL) { 135 printf("%s: couldn't establish interrupt", 136 sc->sc_bus.bdev.dv_xname); 137 if (intrstr != NULL) 138 printf(" at %s", intrstr); 139 printf("\n"); 140 return; 141 } 142 printf("%s: interrupting at %s\n", sc->sc_bus.bdev.dv_xname, intrstr); 143 144 /* Figure out vendor for root hub descriptor. */ 145 vendor = pci_findvendor(pa->pa_id); 146 sc->sc_id_vendor = PCI_VENDOR(pa->pa_id); 147 if (vendor) 148 strncpy(sc->sc_vendor, vendor, sizeof(sc->sc_vendor) - 1); 149 else 150 sprintf(sc->sc_vendor, "vendor 0x%04x", PCI_VENDOR(pa->pa_id)); 151 152 r = ohci_init(sc); 153 if (r != USBD_NORMAL_COMPLETION) { 154 printf("%s: init failed, error=%d\n", sc->sc_bus.bdev.dv_xname, 155 r); 156 return; 157 } 158 159 /* Attach usb device. */ 160 config_found((void *)sc, &sc->sc_bus, usbctlprint); 161} 162