uhci_pci.c revision 1.8
1/* $NetBSD: uhci_pci.c,v 1.8 1999/08/21 21:35:36 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}; 65 66int 67uhci_pci_match(parent, match, aux) 68 struct device *parent; 69 struct cfdata *match; 70 void *aux; 71{ 72 struct pci_attach_args *pa = (struct pci_attach_args *) aux; 73 74 if (PCI_CLASS(pa->pa_class) == PCI_CLASS_SERIALBUS && 75 PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_SERIALBUS_USB && 76 PCI_INTERFACE(pa->pa_class) == PCI_INTERFACE_UHCI) 77 return 1; 78 79 return 0; 80} 81 82void 83uhci_pci_attach(parent, self, aux) 84 struct device *parent; 85 struct device *self; 86 void *aux; 87{ 88 uhci_softc_t *sc = (uhci_softc_t *)self; 89 struct pci_attach_args *pa = (struct pci_attach_args *)aux; 90 pci_chipset_tag_t pc = pa->pa_pc; 91 char const *intrstr; 92 pci_intr_handle_t ih; 93 pcireg_t csr; 94 char *typestr, *vendor; 95 char devinfo[256]; 96 usbd_status r; 97 98 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo); 99 printf(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class)); 100 101 /* Disable interrupts, so we don't can any spurious ones. */ 102 bus_space_write_2(sc->iot, sc->ioh, UHCI_INTR, 0); 103 104 /* Map I/O registers */ 105 if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0, 106 &sc->iot, &sc->ioh, NULL, NULL)) { 107 printf("%s: can't map i/o space\n", sc->sc_bus.bdev.dv_xname); 108 return; 109 } 110 111 sc->sc_dmatag = pa->pa_dmat; 112 113 /* Enable the device. */ 114 csr = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 115 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 116 csr | PCI_COMMAND_MASTER_ENABLE); 117 118 /* Map and establish the interrupt. */ 119 if (pci_intr_map(pc, pa->pa_intrtag, pa->pa_intrpin, 120 pa->pa_intrline, &ih)) { 121 printf("%s: couldn't map interrupt\n", 122 sc->sc_bus.bdev.dv_xname); 123 return; 124 } 125 intrstr = pci_intr_string(pc, ih); 126 sc->sc_ih = pci_intr_establish(pc, ih, IPL_USB, uhci_intr, sc); 127 if (sc->sc_ih == NULL) { 128 printf("%s: couldn't establish interrupt", 129 sc->sc_bus.bdev.dv_xname); 130 if (intrstr != NULL) 131 printf(" at %s", intrstr); 132 printf("\n"); 133 return; 134 } 135 printf("%s: interrupting at %s\n", sc->sc_bus.bdev.dv_xname, intrstr); 136 137 switch(pci_conf_read(pc, pa->pa_tag, PCI_USBREV) & PCI_USBREV_MASK) { 138 case PCI_USBREV_PRE_1_0: 139 typestr = "pre 1.0"; 140 break; 141 case PCI_USBREV_1_0: 142 typestr = "1.0"; 143 break; 144 default: 145 typestr = "unknown"; 146 break; 147 } 148 printf("%s: USB version %s\n", sc->sc_bus.bdev.dv_xname, typestr); 149 150 /* Figure out vendor for root hub descriptor. */ 151 vendor = pci_findvendor(pa->pa_id); 152 sc->sc_id_vendor = PCI_VENDOR(pa->pa_id); 153 if (vendor) 154 strncpy(sc->sc_vendor, vendor, sizeof(sc->sc_vendor) - 1); 155 else 156 sprintf(sc->sc_vendor, "vendor 0x%04x", PCI_VENDOR(pa->pa_id)); 157 158 r = uhci_init(sc); 159 if (r != USBD_NORMAL_COMPLETION) { 160 printf("%s: init failed, error=%d\n", 161 sc->sc_bus.bdev.dv_xname, r); 162 return; 163 } 164 165 /* Attach usb device. */ 166 config_found((void *)sc, &sc->sc_bus, usbctlprint); 167} 168