ohci_pci.c revision 1.13
1/* $NetBSD: ohci_pci.c,v 1.13 1999/09/15 10:25:30 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 ohci_detach, ohci_activate 72}; 73 74int 75ohci_pci_match(parent, match, aux) 76 struct device *parent; 77 struct cfdata *match; 78 void *aux; 79{ 80 struct pci_attach_args *pa = (struct pci_attach_args *) aux; 81 82 if (PCI_CLASS(pa->pa_class) == PCI_CLASS_SERIALBUS && 83 PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_SERIALBUS_USB && 84 PCI_INTERFACE(pa->pa_class) == PCI_INTERFACE_OHCI) 85 return 1; 86 87 return 0; 88} 89 90void 91ohci_pci_attach(parent, self, aux) 92 struct device *parent; 93 struct device *self; 94 void *aux; 95{ 96 struct ohci_softc *sc = (struct ohci_softc *)self; 97 struct pci_attach_args *pa = (struct pci_attach_args *)aux; 98 pci_chipset_tag_t pc = pa->pa_pc; 99 char const *intrstr; 100 pci_intr_handle_t ih; 101 pcireg_t csr; 102 char devinfo[256]; 103 usbd_status r; 104 char *vendor; 105 106 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo); 107 printf(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class)); 108 109 /* Map I/O registers */ 110 if (pci_mapreg_map(pa, PCI_CBMEM, PCI_MAPREG_TYPE_MEM, 0, 111 &sc->iot, &sc->ioh, NULL, NULL)) { 112 printf("%s: can't map mem space\n", sc->sc_bus.bdev.dv_xname); 113 return; 114 } 115 116 /* Disable interrupts, so we don't can any spurious ones. */ 117 bus_space_write_4(sc->iot, sc->ioh, OHCI_INTERRUPT_DISABLE, OHCI_ALL_INTRS); 118 119 sc->sc_bus.dmatag = pa->pa_dmat; 120 121 /* Enable the device. */ 122 csr = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 123 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 124 csr | PCI_COMMAND_MASTER_ENABLE); 125 126 /* Map and establish the interrupt. */ 127 if (pci_intr_map(pc, pa->pa_intrtag, pa->pa_intrpin, 128 pa->pa_intrline, &ih)) { 129 printf("%s: couldn't map interrupt\n", 130 sc->sc_bus.bdev.dv_xname); 131 return; 132 } 133 intrstr = pci_intr_string(pc, ih); 134 sc->sc_ih = pci_intr_establish(pc, ih, IPL_USB, ohci_intr, sc); 135 if (sc->sc_ih == NULL) { 136 printf("%s: couldn't establish interrupt", 137 sc->sc_bus.bdev.dv_xname); 138 if (intrstr != NULL) 139 printf(" at %s", intrstr); 140 printf("\n"); 141 return; 142 } 143 printf("%s: interrupting at %s\n", sc->sc_bus.bdev.dv_xname, intrstr); 144 145 /* Figure out vendor for root hub descriptor. */ 146 vendor = pci_findvendor(pa->pa_id); 147 sc->sc_id_vendor = PCI_VENDOR(pa->pa_id); 148 if (vendor) 149 strncpy(sc->sc_vendor, vendor, sizeof(sc->sc_vendor) - 1); 150 else 151 sprintf(sc->sc_vendor, "vendor 0x%04x", PCI_VENDOR(pa->pa_id)); 152 153 r = ohci_init(sc); 154 if (r != USBD_NORMAL_COMPLETION) { 155 printf("%s: init failed, error=%d\n", sc->sc_bus.bdev.dv_xname, 156 r); 157 return; 158 } 159 160 /* Attach usb device. */ 161 sc->sc_child = config_found((void *)sc, &sc->sc_bus, usbctlprint); 162} 163