uhci_pci.c revision 1.11
1/* $NetBSD: uhci_pci.c,v 1.11 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#include <sys/param.h> 41#include <sys/systm.h> 42#include <sys/kernel.h> 43#include <sys/device.h> 44#include <sys/proc.h> 45#include <sys/queue.h> 46 47#include <machine/bus.h> 48 49#include <dev/pci/pcivar.h> 50 51#include <dev/usb/usb.h> 52#include <dev/usb/usbdi.h> 53#include <dev/usb/usbdivar.h> 54#include <dev/usb/usb_mem.h> 55 56#include <dev/usb/uhcireg.h> 57#include <dev/usb/uhcivar.h> 58 59int uhci_pci_match __P((struct device *, struct cfdata *, void *)); 60void uhci_pci_attach __P((struct device *, struct device *, void *)); 61 62struct cfattach uhci_pci_ca = { 63 sizeof(uhci_softc_t), uhci_pci_match, uhci_pci_attach, 64 uhci_detach, uhci_activate 65}; 66 67int 68uhci_pci_match(parent, match, aux) 69 struct device *parent; 70 struct cfdata *match; 71 void *aux; 72{ 73 struct pci_attach_args *pa = (struct pci_attach_args *) aux; 74 75 if (PCI_CLASS(pa->pa_class) == PCI_CLASS_SERIALBUS && 76 PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_SERIALBUS_USB && 77 PCI_INTERFACE(pa->pa_class) == PCI_INTERFACE_UHCI) 78 return 1; 79 80 return 0; 81} 82 83void 84uhci_pci_attach(parent, self, aux) 85 struct device *parent; 86 struct device *self; 87 void *aux; 88{ 89 uhci_softc_t *sc = (uhci_softc_t *)self; 90 struct pci_attach_args *pa = (struct pci_attach_args *)aux; 91 pci_chipset_tag_t pc = pa->pa_pc; 92 char const *intrstr; 93 pci_intr_handle_t ih; 94 pcireg_t csr; 95 char *typestr, *vendor; 96 char devinfo[256]; 97 usbd_status r; 98 99 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo); 100 printf(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class)); 101 102 /* Map I/O registers */ 103 if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0, 104 &sc->iot, &sc->ioh, NULL, NULL)) { 105 printf("%s: can't map i/o space\n", sc->sc_bus.bdev.dv_xname); 106 return; 107 } 108 109 /* Disable interrupts, so we don't get any spurious ones. */ 110 bus_space_write_2(sc->iot, sc->ioh, UHCI_INTR, 0); 111 112 sc->sc_bus.dmatag = pa->pa_dmat; 113 114 /* Enable the device. */ 115 csr = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 116 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 117 csr | PCI_COMMAND_MASTER_ENABLE); 118 119 /* Map and establish the interrupt. */ 120 if (pci_intr_map(pc, pa->pa_intrtag, pa->pa_intrpin, 121 pa->pa_intrline, &ih)) { 122 printf("%s: couldn't map interrupt\n", 123 sc->sc_bus.bdev.dv_xname); 124 return; 125 } 126 intrstr = pci_intr_string(pc, ih); 127 sc->sc_ih = pci_intr_establish(pc, ih, IPL_USB, uhci_intr, sc); 128 if (sc->sc_ih == NULL) { 129 printf("%s: couldn't establish interrupt", 130 sc->sc_bus.bdev.dv_xname); 131 if (intrstr != NULL) 132 printf(" at %s", intrstr); 133 printf("\n"); 134 return; 135 } 136 printf("%s: interrupting at %s\n", sc->sc_bus.bdev.dv_xname, intrstr); 137 138 switch(pci_conf_read(pc, pa->pa_tag, PCI_USBREV) & PCI_USBREV_MASK) { 139 case PCI_USBREV_PRE_1_0: 140 typestr = "pre 1.0"; 141 break; 142 case PCI_USBREV_1_0: 143 typestr = "1.0"; 144 break; 145 default: 146 typestr = "unknown"; 147 break; 148 } 149 printf("%s: USB version %s\n", sc->sc_bus.bdev.dv_xname, typestr); 150 151 /* Figure out vendor for root hub descriptor. */ 152 vendor = pci_findvendor(pa->pa_id); 153 sc->sc_id_vendor = PCI_VENDOR(pa->pa_id); 154 if (vendor) 155 strncpy(sc->sc_vendor, vendor, sizeof(sc->sc_vendor) - 1); 156 else 157 sprintf(sc->sc_vendor, "vendor 0x%04x", PCI_VENDOR(pa->pa_id)); 158 159 r = uhci_init(sc); 160 if (r != USBD_NORMAL_COMPLETION) { 161 printf("%s: init failed, error=%d\n", 162 sc->sc_bus.bdev.dv_xname, r); 163 return; 164 } 165 166 /* Attach usb device. */ 167 sc->sc_child = config_found((void *)sc, &sc->sc_bus, usbctlprint); 168} 169