ohci_pci.c revision 1.1
1/* $NetBSD: ohci_pci.c,v 1.1 1998/07/12 19:51:58 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/* 40 * USB Open Host Controller driver. 41 * 42 * OHCI spec: http://www.intel.com/design/usb/ohci11d.pdf 43 * USB spec: http://www.teleport.com/cgi-bin/mailmerge.cgi/~usb/cgiform.tpl 44 */ 45 46#include <sys/param.h> 47#include <sys/systm.h> 48#include <sys/kernel.h> 49#include <sys/device.h> 50#include <sys/proc.h> 51#include <sys/queue.h> 52 53#include <dev/pci/pcidevs.h> 54#include <dev/pci/pcivar.h> 55 56#include <dev/usb/usb.h> 57#include <dev/usb/usbdi.h> 58#include <dev/usb/usbdivar.h> 59#include <dev/usb/ohcireg.h> 60#include <dev/usb/ohcivar.h> 61 62#include <machine/bus.h> 63 64int ohci_pci_match __P((struct device *, struct cfdata *, void *)); 65void ohci_pci_attach __P((struct device *, struct device *, void *)); 66 67struct cfattach ohci_pci_ca = { 68 sizeof(struct ohci_softc), ohci_pci_match, ohci_pci_attach 69}; 70 71int 72ohci_pci_match(parent, match, aux) 73 struct device *parent; 74 struct cfdata *match; 75 void *aux; 76{ 77 struct pci_attach_args *pa = (struct pci_attach_args *) aux; 78 79 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_OPTI && 80 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_OPTI_RM861HA) 81 return 1; 82 83 return 0; 84} 85 86void 87ohci_pci_attach(parent, self, aux) 88 struct device *parent; 89 struct device *self; 90 void *aux; 91{ 92 struct ohci_softc *sc = (struct ohci_softc *)self; 93 struct pci_attach_args *pa = (struct pci_attach_args *)aux; 94 pci_chipset_tag_t pc = pa->pa_pc; 95 char const *intrstr; 96 pci_intr_handle_t ih; 97 pcireg_t csr; 98 char devinfo[256]; 99 usbd_status r; 100 char *vendor; 101 102 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo); 103 printf(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class)); 104 105 /* Map I/O registers */ 106 if (pci_mapreg_map(pa, PCI_CBMEM, PCI_MAPREG_TYPE_MEM, 0, 107 &sc->iot, &sc->ioh, NULL, NULL)) { 108 printf("%s: can't map mem space\n", sc->sc_bus.bdev.dv_xname); 109 return; 110 } 111 112 sc->sc_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", 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, ohci_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 /* Figure out vendor for root hub descriptor. */ 138 vendor = pci_findvendor(pa->pa_id); 139 if (vendor) 140 strncpy(sc->sc_vendor, vendor, sizeof(sc->sc_vendor)); 141 else 142 sprintf(sc->sc_vendor, "vendor 0x%04x", PCI_VENDOR(pa->pa_id)); 143 144 r = ohci_init(sc); 145 if (r != USBD_NORMAL_COMPLETION) { 146 printf("%s: init failed, error=%d\n", sc->sc_bus.bdev.dv_xname, 147 r); 148 return; 149 } 150 151 /* Attach usb device. */ 152 config_found((void *)sc, &sc->sc_bus, usbctlprint); 153} 154