ohci_pci.c revision 1.37
1/* $NetBSD: ohci_pci.c,v 1.37 2008/03/28 17:14:45 drochner 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 (lennart@augustsson.net) 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/cdefs.h> 41__KERNEL_RCSID(0, "$NetBSD: ohci_pci.c,v 1.37 2008/03/28 17:14:45 drochner Exp $"); 42 43#include "ehci.h" 44 45#include <sys/param.h> 46#include <sys/systm.h> 47#include <sys/kernel.h> 48#include <sys/device.h> 49#include <sys/proc.h> 50#include <sys/queue.h> 51 52#include <sys/bus.h> 53 54#include <dev/pci/pcivar.h> 55#include <dev/pci/usb_pci.h> 56 57#include <dev/usb/usb.h> 58#include <dev/usb/usbdi.h> 59#include <dev/usb/usbdivar.h> 60#include <dev/usb/usb_mem.h> 61 62#include <dev/usb/ohcireg.h> 63#include <dev/usb/ohcivar.h> 64 65struct ohci_pci_softc { 66 ohci_softc_t sc; 67#if NEHCI > 0 68 struct usb_pci sc_pci; 69#endif 70 pci_chipset_tag_t sc_pc; 71 pcitag_t sc_tag; 72 void *sc_ih; /* interrupt vectoring */ 73}; 74 75static int 76ohci_pci_match(device_t parent, struct cfdata *match, void *aux) 77{ 78 struct pci_attach_args *pa = (struct pci_attach_args *) aux; 79 80 if (PCI_CLASS(pa->pa_class) == PCI_CLASS_SERIALBUS && 81 PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_SERIALBUS_USB && 82 PCI_INTERFACE(pa->pa_class) == PCI_INTERFACE_OHCI) 83 return (1); 84 85 return (0); 86} 87 88static void 89ohci_pci_attach(device_t parent, device_t self, void *aux) 90{ 91 struct ohci_pci_softc *sc = device_private(self); 92 struct pci_attach_args *pa = (struct pci_attach_args *)aux; 93 pci_chipset_tag_t pc = pa->pa_pc; 94 pcitag_t tag = pa->pa_tag; 95 char const *intrstr; 96 pci_intr_handle_t ih; 97 pcireg_t csr; 98 char devinfo[256]; 99 usbd_status r; 100 const char *vendor; 101 const char *devname = device_xname(self); 102 103 sc->sc.sc_dev = self; 104 sc->sc.sc_bus.hci_private = self; 105 106 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(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->sc.iot, &sc->sc.ioh, NULL, &sc->sc.sc_size)) { 112 printf("%s: can't map mem space\n", devname); 113 return; 114 } 115 116 /* Disable interrupts, so we don't get any spurious ones. */ 117 bus_space_write_4(sc->sc.iot, sc->sc.ioh, OHCI_INTERRUPT_DISABLE, 118 OHCI_ALL_INTRS); 119 120 sc->sc_pc = pc; 121 sc->sc_tag = tag; 122 sc->sc.sc_bus.dmatag = pa->pa_dmat; 123 124 /* Enable the device. */ 125 csr = pci_conf_read(pc, tag, PCI_COMMAND_STATUS_REG); 126 pci_conf_write(pc, tag, PCI_COMMAND_STATUS_REG, 127 csr | PCI_COMMAND_MASTER_ENABLE); 128 129 /* Map and establish the interrupt. */ 130 if (pci_intr_map(pa, &ih)) { 131 printf("%s: couldn't map interrupt\n", devname); 132 return; 133 } 134 intrstr = pci_intr_string(pc, ih); 135 sc->sc_ih = pci_intr_establish(pc, ih, IPL_USB, ohci_intr, sc); 136 if (sc->sc_ih == NULL) { 137 printf("%s: couldn't establish interrupt", devname); 138 if (intrstr != NULL) 139 printf(" at %s", intrstr); 140 printf("\n"); 141 return; 142 } 143 printf("%s: interrupting at %s\n", devname, intrstr); 144 145 /* Figure out vendor for root hub descriptor. */ 146 vendor = pci_findvendor(pa->pa_id); 147 sc->sc.sc_id_vendor = PCI_VENDOR(pa->pa_id); 148 if (vendor) 149 strlcpy(sc->sc.sc_vendor, vendor, sizeof(sc->sc.sc_vendor)); 150 else 151 snprintf(sc->sc.sc_vendor, sizeof(sc->sc.sc_vendor), 152 "vendor 0x%04x", PCI_VENDOR(pa->pa_id)); 153 154 r = ohci_init(&sc->sc); 155 if (r != USBD_NORMAL_COMPLETION) { 156 printf("%s: init failed, error=%d\n", devname, r); 157 return; 158 } 159 160#if NEHCI > 0 161 usb_pci_add(&sc->sc_pci, pa, self); 162#endif 163 164 if (!pmf_device_register1(self, ohci_suspend, ohci_resume, 165 ohci_shutdown)) 166 aprint_error_dev(self, "couldn't establish power handler\n"); 167 168 /* Attach usb device. */ 169 sc->sc.sc_child = config_found(self, &sc->sc.sc_bus, usbctlprint); 170} 171 172static int 173ohci_pci_detach(device_ptr_t self, int flags) 174{ 175 struct ohci_pci_softc *sc = device_private(self); 176 int rv; 177 178 rv = ohci_detach(&sc->sc, flags); 179 if (rv) 180 return (rv); 181 if (sc->sc_ih != NULL) { 182 pci_intr_disestablish(sc->sc_pc, sc->sc_ih); 183 sc->sc_ih = NULL; 184 } 185 if (sc->sc.sc_size) { 186 bus_space_unmap(sc->sc.iot, sc->sc.ioh, sc->sc.sc_size); 187 sc->sc.sc_size = 0; 188 } 189#if NEHCI > 0 190 usb_pci_rem(&sc->sc_pci); 191#endif 192 return (0); 193} 194 195CFATTACH_DECL2_NEW(ohci_pci, sizeof(struct ohci_pci_softc), 196 ohci_pci_match, ohci_pci_attach, ohci_pci_detach, ohci_activate, NULL, 197 ohci_childdet); 198