uhci_pci.c revision 1.2
1/* $NetBSD: uhci_pci.c,v 1.2 1998/07/25 15:15:40 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#include <sys/param.h> 40#include <sys/systm.h> 41#include <sys/kernel.h> 42#include <sys/device.h> 43#include <sys/proc.h> 44#include <sys/queue.h> 45 46#include <machine/bus.h> 47 48#include <dev/pci/pcidevs.h> 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_VENDOR(pa->pa_id) != PCI_VENDOR_INTEL) 75 return 0; 76 if (PCI_PRODUCT(pa->pa_id) != PCI_PRODUCT_INTEL_82371AB_USB && 77 PCI_PRODUCT(pa->pa_id) != PCI_PRODUCT_INTEL_82371SB_USB) 78 return 0; 79 80 return 1; 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; 96 char devinfo[256]; 97 usbd_status r; 98 99 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_INTEL) { 100 switch(PCI_PRODUCT(pa->pa_id)) { 101 case PCI_PRODUCT_INTEL_82371SB_USB: 102 sc->sc_model = UHCI_PIIX3; 103 break; 104 case PCI_PRODUCT_INTEL_82371AB_USB: 105 sc->sc_model = UHCI_PIIX4; 106 break; 107#ifdef DIAGNOSTIC 108 default: 109 printf("uhci_attach: unknown product 0x%x\n", 110 PCI_PRODUCT(pa->pa_id)); 111 return; 112#endif 113 } 114 } 115 116 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo); 117 printf(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class)); 118 119 /* Map I/O registers */ 120 if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0, 121 &sc->iot, &sc->ioh, NULL, NULL)) { 122 printf("%s: can't map i/o space\n", sc->sc_bus.bdev.dv_xname); 123 return; 124 } 125 126 sc->sc_dmatag = pa->pa_dmat; 127 128 /* Enable the device. */ 129 csr = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 130 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 131 csr | PCI_COMMAND_MASTER_ENABLE); 132 133 /* Map and establish the interrupt. */ 134 if (pci_intr_map(pc, pa->pa_intrtag, pa->pa_intrpin, 135 pa->pa_intrline, &ih)) { 136 printf("%s: couldn't map interrupt\n", 137 sc->sc_bus.bdev.dv_xname); 138 return; 139 } 140 intrstr = pci_intr_string(pc, ih); 141 sc->sc_ih = pci_intr_establish(pc, ih, IPL_USB, uhci_intr, sc); 142 if (sc->sc_ih == NULL) { 143 printf("%s: couldn't establish interrupt", 144 sc->sc_bus.bdev.dv_xname); 145 if (intrstr != NULL) 146 printf(" at %s", intrstr); 147 printf("\n"); 148 return; 149 } 150 printf("%s: interrupting at %s\n", sc->sc_bus.bdev.dv_xname, intrstr); 151 152 switch(pci_conf_read(pc, pa->pa_tag, PCI_USBREV) & PCI_USBREV_MASK) { 153 case PCI_USBREV_PRE_1_0: 154 typestr = "pre 1.0"; 155 break; 156 case PCI_USBREV_1_0: 157 typestr = "1.0"; 158 break; 159 default: 160 typestr = "unknown"; 161 break; 162 } 163 printf("%s: USB version %s\n", sc->sc_bus.bdev.dv_xname, typestr); 164 165 r = uhci_init(sc); 166 if (r != USBD_NORMAL_COMPLETION) { 167 printf("%s: init failed, error=%d\n", 168 sc->sc_bus.bdev.dv_xname, r); 169 return; 170 } 171 172 /* Attach usb device. */ 173 config_found((void *)sc, &sc->sc_bus, usbctlprint); 174} 175